5914766 1966 12 03 1966 12 03 2003 11 14

0036-8075 154 746 1966 Oct 14 Toxicity of aquatic herbicides to Daphnia magna. 289-91 Crosby D G DG Tucker R K RK eng Journal Article

UNITED STATES Science 0404511 0 Herbicides IM Animals Crustacea drug effects Fishes drug effects Herbicides toxicity Rats 6029684 1967 09 24 1967 09 24 2003 11 14

0017-9078 13 4 1967 Apr Factors influencing radiostrontium accumulation in Daphnia. 391-9 Porcella D B DB Rixford C E CE Slater J V JV eng Journal Article

UNITED STATES Health Phys 2985093R 0 Strontium Isotopes 7439-95-4 Magnesium 7440-70-2 Calcium 7732-18-5 Water IM Algae Animals Calcium analysis Crustacea metabolism Kinetics Magnesium analysis Models, Theoretical Strontium Isotopes metabolism Water 5585869 1968 06 30 1968 06 30 2003 11 14

0028-1042 54 8 1967 Apr Temperature, food, and turbulence as natural determinants of cyclomorphosis in Daphnia. 207 Jacobs J J eng Journal Article

GERMANY, WEST Naturwissenschaften 0400767 IM Animals Biometry Crustacea anatomy & histology Food Plankton anatomy & histology Temperature 5673686 1968 10 24 1968 10 24 2003 11 14

0022-0949 49 1 1968 Aug The effect of ultrasonic irradiation on the survival of Daphnia magna. 61-70 Wells P N PN eng Journal Article

ENGLAND J Exp Biol 0243705 IM Animals Crustacea Equipment and Supplies Temperature Ultrasonics 4905580 1970 03 27 1970 03 27 2003 11 14

0044-3794 103 4 1970 [Ultrastructure of the "optic nerve" and the ganglion opticum I of Daphnia pulex] 526-43 Wolff J R JR Güldner F H FH ger Journal Article Uber die Ultrastruktur des "Nervus opticus" und des Ganglion opticum I von Daphnia pulex.

GERMANY, WEST Z Zellforsch Mikrosk Anat 7503955 IM Animals Axons cytology Fleas cytology Ganglia cytology Histological Techniques Microscopy, Electron Neurosecretion Optic Nerve cytology Receptors, Sensory cytology 5378549 1970 05 04 1970 05 04 2003 11 14

0066-1562 63 1969 [Morphology and function of the daphnia heart] 573-83 van der Zypen E E Castenholz A A ger Journal Article Zur Morphologie und Funktion des Daphnienherzens.

GERMANY, EAST Verh Anat Ges 7501276 0 Muscle Proteins IM Animals Basement Membrane Crustacea Heart anatomy & histology physiology Kymography Microscopy, Electron Mitochondria, Muscle Muscle Proteins Myocardium cytology Myofibrils 5493365 1971 02 27 1971 02 27 2003 11 14

0026-3656 39 4 1970 Jul-Aug [Experimental study of bacterial production in water and the consumption of bacteria by daphnia] 711-5 Romanenko V I VI rus Journal Article Eksperimental'noe issledovanie produktsii bakteriĭ v vode i vyedaniia ikh dafniiami.

USSR Mikrobiologiia 0376652 0 Penicillins 57-92-1 Streptomycin IM Animals Bacteria drug effects growth & development Crustacea drug effects metabolism Oxygen Consumption Penicillins pharmacology Streptomycin pharmacology Water Microbiology 5553981 1971 06 08 1971 06 08 2003 11 14

0006-3002 229 2 1971 Feb 16 Purification and properties of blood hemoglobin from the fresh-water cladocera, Moina macrocopa and Daphnia magna. 349-58 Sugano H H Hoshi T T eng Journal Article

NETHERLANDS Biochim Biophys Acta 0217513 0 Hemoglobins 14875-96-8 Heme 7439-89-6 Iron 7782-44-7 Oxygen IM Animals Centrifugation, Density Gradient Chemistry, Physical Chromatography, DEAE-Cellulose Chromatography, Gel Crustacea Diffusion Electrophoresis Female Heme analysis Hemoglobins analysis isolation & purification Hydrogen-Ion Concentration Iron analysis Mathematics Molecular Weight Oxygen Spectrophotometry Ultracentrifugation Viscosity 5524123 1972 03 23 1972 03 23 2003 11 14

0375-8443 16 6 1970 [Bronchial asthma caused by Daphnia P] 242-5 Popescu I G IG Dragulescu I I Iota C G CG ger Journal Article Bronchialasthma hervorgerufen durch Daphnia.

GERMANY, EAST Allerg Asthma (Leipz) 0313664 0 Allergens IM Adult Allergens adverse effects Asthma diagnosis etiology Bronchial Spasm etiology Daphnia Eosinophils Female Human Male Middle Aged Rhinitis etiology Skin Tests 4109800 1972 04 07 1972 04 07 2003 11 14

0016-6480 18 1 1972 Feb [Staining properties of neurosecretory cells in Daphnia pulex (Crustacea: Cladocera)] 140-5 Van den Bosch de Aguila fre Journal Article Les caractéristiques tinctoriales des cellules neurosécrétrices chez Daphnia pulex (Crustacea: Cladoceral.

UNITED STATES Gen Comp Endocrinol 0370735 0 Benzopyrans 0 Carboxylic Acids 0 Disulfides 0 Glycols 0 Lipids 0 Rosaniline Dyes 0 Sulfonic Acids 7722-64-7 Potassium Permanganate 9005-79-2 Glycogen IM Animals Benzopyrans Carboxylic Acids analysis Daphnia anatomy & histology Disulfides Glycogen analysis Glycols analysis Histocytochemistry Lipids analysis Neurosecretory Systems cytology Potassium Permanganate Rosaniline Dyes Staining and Labeling Sulfonic Acids analysis 5062783 1972 06 11 1972 06 11 2003 11 14

0009-5915 36 2 1972 Karyologic observations on the maturation of the summer and winter eggs of Daphnia pulex and Daphnia middendorffiana. 193-203 Zaffagnini F F Sabelli B B eng Journal Article

GERMANY, WEST Chromosoma 2985138R IM Animals Chromatids Chromosomes Cytogenetics Daphnia cytology Diploidy Female Genetics, Population Karyotyping Meiosis Ovum cytology Parthenogenesis Seasons 5146542 1972 06 27 1972 06 27 2000 12 18

0049-8610 17 10 1971 Oct [Effect of organochlorine pesticides on indicators of water pollution] 734-40 Zamfir G G Simona A A Filipiuc M M Alexa L L Melinte C C Gevät V V ger Journal Article Die Wirkung gewisser organo-chlorierter Pestizide auf die hygienisch-sanitären Indikatoren des Wassers.

GERMANY, EAST Z Gesamte Hyg 0420111 0 Hydrocarbons, Halogenated 0 Pesticides IM Algae drug effects Daphnia drug effects Hydrocarbons, Halogenated pharmacology Pesticides analysis pharmacology Phytoplankton drug effects Water Microbiology drug effects Water Pollution Water Pollution, Chemical 5038817 1972 08 25 1972 08 25 2003 11 14

0016-6723 19 2 1972 Apr Natural selection for enzyme variants among parthenogenetic Daphnia magna. 173-6 Hebert P D PD Ward R D RD Gibson J B JB eng Journal Article

ENGLAND Genet Res 0370741 0 Isoenzymes EC 1.1.1.37 Malate Dehydrogenase EC 3.1. Esterases IM Animals Daphnia enzymology Electrophoresis, Disc Esterases analysis Genetics, Population Heterozygote Isoenzymes analysis Malate Dehydrogenase analysis Polymorphism (Genetics) 4626082 1972 09 29 1972 09 29 2003 11 14

0007-4861 7 5 1972 May Biological magnification of a polychlorinated biphenyl (Aroclor 1254) from water by aquatic invertebrates. 257-63 Sanders H O HO Chandler J H JH eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Biphenyl Compounds 0 Polychlorinated Biphenyls 0 Radioisotopes 7782-50-5 Chlorine IM Animals Astacoidea Biological Assay Biphenyl Compounds metabolism Chlorine Chromatography, Gas Crustacea metabolism Culex Daphnia Decapoda (Crustacea) Environmental Exposure Insects metabolism Isomerism Kinetics Larva Polychlorinated Biphenyls metabolism Radioisotopes Water Pollution Water Pollution, Chemical 5052703 1972 10 05 1972 10 05 2003 11 14

0033-8192 12 3 1972 May-Jun [Changes in the intensity of oxidative phosphorylation and catalase activity following irradiation of different types of invertebrates] 437-40 Kostromskaia V A VA rus Journal Article Izmenenie intensivnosti okislitel'nogo fosforilirovaniia i aktivnosti katalazy pri obluchenii razlichnykh vidov bezpozvonochnykh.

USSR Radiobiologiia 0401251 0 Cobalt Isotopes EC 1.11.1.6 Catalase IM Animals Catalase metabolism Cobalt Isotopes Cockroaches radiation effects Crustacea radiation effects Daphnia radiation effects Helminths radiation effects Leeches radiation effects Lice radiation effects Mollusca radiation effects Oligochaeta radiation effects Oxidative Phosphorylation radiation effects Platyhelminths radiation effects Radiation Effects 5055130 1972 10 19 1972 10 19 2003 11 14

0016-6731 71 4 1972 Aug Inheritance during parthenogenesis in Daphnia magna. 639-42 Hebert P D PD Ward R D RD eng Journal Article

UNITED STATES Genetics 0374636 EC 1.1.1.37 Malate Dehydrogenase EC 3.1. Esterases EC 3.1.3.1 Alkaline Phosphatase IM Alkaline Phosphatase analysis Animals Crosses, Genetic Daphnia enzymology Electrophoresis, Disc Esterases analysis Female Malate Dehydrogenase analysis Male Parthenogenesis Phenotype Polymorphism (Genetics) Recombination, Genetic 5154362 1972 11 29 1972 11 29 2003 11 14

0300-8665 34 1971 [Endosulfan and the environment. Behavior of residues of endosulfan in water and then effect on organisms which live in water. (Report No 170-70 (B)] 85-93 Gorbach S S Knauf W W ger Journal Article endosulfan und Umwelt. Das Rückstandsverhalten von Endosulfan in Wasser und seine Wirkung auf Organismen, die im Wasser leben (Bericht nr. 170-70 (B.

GERMANY, WEST Schriftenr Ver Wasser Boden Lufthyg 7507514 0 Insecticides, Organochlorine 0 Pesticide Residues 115-29-7 Endosulfan IM Algae drug effects Animals Crustacea drug effects Daphnia drug effects Endosulfan pharmacology Environmental Pollution Fishes analysis drug effects Fresh Water Insecticides, Organochlorine pharmacology Pesticide Residues analysis Water Microbiology Water Pollution, Chemical analysis 4677865 1972 12 04 1972 12 04 2003 11 14

0037-9085 65 1 1972 Jan-Feb [Ecologic and biologic observations of Bulinus forskalii, vector of Schistosoma intercalatum schistosomiasis] 138-45 Deschiens R R Vauthier C C Nordau C G CG fre Journal Article Observations écologiques et biologiques sur Bulinus forskalii vecteur de la bilharziose a Schistosoma intercalatum.

FRANCE Bull Soc Pathol Exot Filiales 7503399 IM Algae, Green Animal Nutrition Animals Breeding Bulinus growth & development Daphnia Disease Vectors Ecology Fresh Water Nutritional Requirements Schistosomiasis 4628538 1973 01 09 1973 01 09 2003 11 14

0007-4861 8 3 1972 Sep Effects of Aroclor 1242 (a polychlorinated biphenyl) and DDT on cultures of an alga, protozoan, daphnid, ostracod, and guppy. 129-37 Morgan J R JR eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Carbon Isotopes 0 Culture Media 0 Polychlorinated Biphenyls 50-29-3 DDT IM Animals Biological Assay Carbon Isotopes Cell Count Chlamydomonas drug effects growth & development Chromatography, Gas Crustacea drug effects Culture Media DDT toxicity Daphnia drug effects growth & development Fishes Polychlorinated Biphenyls toxicity Tetrahymena drug effects growth & development 4509664 1973 03 15 1973 03 15 2003 11 14

0027-8424 70 1 1973 Jan Structure and development of neuronal connections in isogenic organisms: variations and similarities in the optic system of Daphnia magna. 57-61 Macagno E R ER Lopresti V V Levinthal C C eng Journal Article

UNITED STATES Proc Natl Acad Sci U S A 7505876 IM Animals Daphnia cytology Eye cytology Genetics Morphogenesis Neural Pathways cytology Optic Nerve cytology Parthenogenesis Receptors, Sensory cytology Species Specificity Synapses cytology Visual Pathways cytology 4510287 1973 04 05 1973 04 05 2000 12 18

0027-8424 70 2 1973 Feb Structure and development of neuronal connections in isogenic organisms: cellular interactions in the development of the optic lamina of Daphnia. 433-7 Lopresti V V Macagno E R ER Levinthal C C eng Journal Article

UNITED STATES Proc Natl Acad Sci U S A 7505876 IM Axons Cell Differentiation Cell Movement Daphnia embryology Microscopy, Electron Models, Biological Neural Pathways cytology embryology Optic Nerve cytology embryology Parthenogenesis Receptors, Sensory embryology 4688710 1973 04 26 1973 04 26 2000 12 18

0023-6853 22 2 1973 Feb Apparatus for semi-continuous culture of Daphnia. 114-5 Harvey A M AM eng Journal Article

ENGLAND Lab Pract 0376620 0 Culture Media IM Culture Media Daphnia growth & development 4573710 1973 06 29 1973 06 29 2003 11 14

0035-2454 36 3 1972 Apr-Jun [Further research on biological effects of flavacoumarins] 85-101 Boutibonnes P P Jacquet J J fre Journal Article Recherches complémentaires sur les effets biologiques des flavacoumarines.

FRANCE Rev Immunol (Paris) 7801127 0 Aflatoxins IM Aflatoxins pharmacology toxicity Animals Anura Bacillus drug effects Bacteriological Techniques Candida drug effects Cell Division drug effects Daphnia drug effects Metamorphosis, Biological drug effects Microbial Sensitivity Tests Rana temporaria drug effects Saccharomyces cerevisiae drug effects 4704566 1973 07 11 1973 07 11 2003 11 14

0091-6765 3 1973 Jan Toxicology of phthalic acid esters in aquatic organisms. 153-7 Mayer F L FL Jr Sanders H O HO eng Journal Article

UNITED STATES Environ Health Perspect 0330411 0 Carbon Isotopes 0 Esters 0 Phthalic Acids IM Animals Astacoidea metabolism Carbon Isotopes Daphnia metabolism Environmental Exposure Esters toxicity Fishes metabolism Lethal Dose 50 Marine Biology Phthalic Acids metabolism toxicity Reproduction drug effects Salmonidae metabolism United States Water Pollution, Chemical 4145158 1973 07 17 1973 07 17 2003 11 14

0300-9688 222 1 1972 Oct Detection of orally toxic microbial metabolites in foods with bioassay systems. 96-114 de Waart J J van Aken F F Pouw H H eng Journal Article

GERMANY, WEST Zentralbl Bakteriol [Orig A] 0331570 0 Aflatoxins 0 Botulinum Toxins 0 Endotoxins 0 Enterotoxins 0 Toxins 51-45-6 Histamine IM Aflatoxins Animals Bacteria metabolism Biological Assay Botulinum Toxins Cell Line Chick Embryo Daphnia drug effects Endotoxins Enterotoxins pharmacology Escherichia coli Fishes drug effects Food Analysis Food Inspection Food Microbiology Histamine pharmacology Human Insects drug effects Methods Protozoa drug effects Staphylococcus Toxins pharmacology 4711695 1973 08 10 1973 08 10 2003 11 14

0044-376X 74 2 1973 May [Kymography using the intravital microscope (microkymography)] 89-109 Castenholz A A ger Journal Article Kymographie mit dem Vitalmikroskop (Mikrokymographie.

GERMANY, WEST Microsc Acta 1306037 IM Amoeba Animals Cell Movement Chick Embryo Cilia Daphnia Epithelium physiology Eye Gastrointestinal Motility Heart physiology Kinetics Larva Male Mesentery physiology Methods Motion Pictures Mouth Mucosa physiology Movement Photomicrography instrumentation Rats Spermatozoa physiology Triturus 4198044 1973 09 13 1973 09 13 2003 11 14

0003-6072 39 2 1973 Netherlands Society for Microbiology meeting at Delft on 25 October 1972. Mycotoxins. 361-6 de Waart J J eng Journal Article

NETHERLANDS Antonie Van Leeuwenhoek 0372625 0 Aflatoxins 0 Mycotoxins IM Aflatoxins biosynthesis isolation & purification toxicity Animals Aspergillus metabolism Aspergillus flavus metabolism Biological Assay Chromatography Daphnia drug effects Decapoda (Crustacea) drug effects Fishes drug effects Fusarium metabolism Mortality Mycotoxins biosynthesis toxicity Penicillium metabolism Species Specificity Spectrophotometry, Infrared 4721303 1973 10 02 1973 10 02 2003 11 14

0091-6765 4 1973 Jun Uptake and fate of Di-2-ethylhexyl phthalate in aquatic organisms and in a model ecosystem. 27-34 Metcalf R L RL Booth G M GM Schuth C K CK Hansen D J DJ Lu P Y PY eng Journal Article

UNITED STATES Environ Health Perspect 0330411 0 Carbon Isotopes 0 Esters 0 Phthalic Acids IM Animals Autoradiography Carbon Isotopes Chromatography, Thin Layer Culex metabolism Cyprinidae metabolism Daphnia metabolism Ecology Environmental Exposure Esters analysis metabolism Larva metabolism Marine Biology Models, Biological Phthalic Acids analysis metabolism Plants metabolism Snails metabolism 4124493 1973 10 02 1973 10 02 2003 11 14

0091-6765 4 1973 Jun Model ecosystem studies of the environmental fate of six organochlorine pesticides. 35-44 Metcalf R L RL Kapoor I P IP Lu P Y PY Schuth C K CK Sherman P P eng Journal Article

UNITED STATES Environ Health Perspect 0330411 0 Benzene Derivatives 0 Carbon Isotopes 0 Insecticides, Organochlorine 2385-85-5 Mirex 309-00-2 Aldrin 50-29-3 DDT 58-89-9 Lindane 60-57-1 Dieldrin 72-20-8 Endrin 72-55-9 DDE 7782-50-5 Chlorine IM Aldrin metabolism Algae, Green Animals Autoradiography Benzene Derivatives metabolism Carbon Isotopes Chlorine metabolism Chromatography, Thin Layer Culex DDE metabolism DDT metabolism Daphnia Dieldrin metabolism Ecology Endrin metabolism Environment Fishes Insecticides, Organochlorine metabolism Lindane metabolism Mirex metabolism Models, Biological Scintillation Counting Snails 4581877 1973 11 16 1973 11 16 2003 11 14

0081-1386 26 1972 Pressure and the rhythmic behaviour of inshore marine animals. 395-415 Naylor E E Atkinson R J RJ eng Journal Article Review

ENGLAND Symp Soc Exp Biol 0404517 IM Animals Atmospheric Pressure Brachyura Circadian Rhythm Daphnia Hydrostatic Pressure Light Male Marine Biology Mollusca Movement Plankton Pressure Seasons Temperature 44 4581878 1973 11 16 1973 11 16 2003 11 14

0081-1386 26 1972 The effects of pressure on organisms: a summary of progress. 473-82 Kitching J A JA eng Journal Article Review

ENGLAND Symp Soc Exp Biol 0404517 7727-37-9 Nitrogen 7732-18-5 Water IM Adaptation, Biological Anesthesia Animals Birds Crustacea Daphnia Electrocardiography Fishes Hydrostatic Pressure Mammals Nitrogen Plankton Pressure Tetrahymena Water 12 4745372 1973 12 16 1973 12 16 2003 11 14

0013-9351 6 1 1973 Mar Toxicity, residue dynamics, and reproductive effects of phthalate esters in aquatic invertebrates. 84-90 Sanders H O HO Mayer F L FL Jr Walsh D F DF eng Journal Article

UNITED STATES Environ Res 0147621 0 Carbon Radioisotopes 0 Esters 0 Phthalic Acids IM Animals Astacoidea Carbon Radioisotopes Crustacea Daphnia Decapoda (Crustacea) Environmental Exposure Esters Invertebrates Marine Biology Phthalic Acids analysis metabolism toxicity Reproduction drug effects Scintillation Counting Water Pollution, Chemical analysis 4754411 1974 01 19 1974 01 19 2003 11 14

0022-104X 186 1 1973 Oct Phenotype variability of lactate dehydrogenase in Daphnia magna. 33-8 Herbert P D PD eng Journal Article

UNITED STATES J Exp Zool 0375365 EC 1.1.1.27 L-Lactate Dehydrogenase EC 3.4 Peptide Hydrolases IM Animals Daphnia enzymology Electrophoresis L-Lactate Dehydrogenase metabolism Peptide Hydrolases metabolism Phenotype Population Density Variation (Genetics) 4769158 1974 03 06 1974 03 06 2003 11 14

0065-2598 40 1973 Biological effects of heavy metal pollutants in water. 161-72 Hartung R R eng Journal Article

UNITED STATES Adv Exp Med Biol 0121103 0 Metals 7439-92-1 Lead 7440-43-9 Cadmium 7440-47-3 Chromium 7440-50-8 Copper 7440-66-6 Zinc IM Algae drug effects Animals Bird Diseases chemically induced Birds Cadmium pharmacology toxicity Cats Chromium pharmacology toxicity Copper pharmacology toxicity Daphnia drug effects Fish Diseases chemically induced Fishes Lead toxicity Lead Poisoning veterinary Lethal Dose 50 Mercury Poisoning veterinary Metals toxicity Water Pollution, Chemical Zinc toxicity 4149293 1974 03 20 1974 03 20 2003 11 14

0007-4861 10 6 1973 Dec The fate of dieldrin in a model ecosystem. 340-6 Sanborn J R JR Yu C C CC eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Carbon Radioisotopes 60-57-1 Dieldrin IM Algae Animals Biotransformation Brachyura Carbon Radioisotopes Clams Culicidae Daphnia Dieldrin metabolism Drug Stability Environment Fishes Models, Biological Plants Snails Time Factors 4669494 1974 04 29 1974 04 29 2003 11 14

0007-4861 8 4 1972 Oct In vivo and in vitro epoxidation of aldrin by aquatic food chain organisms. 219-28 Khan M A MA Kamal A A Wolin R J RJ Runnels J J eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Ethers, Cyclic 309-00-2 Aldrin EC 1. Oxidoreductases IM Aedes metabolism Aldrin metabolism Algae metabolism Animals Astacoidea metabolism Cell Nucleus Chlorella metabolism Clams metabolism Crustacea metabolism Daphnia metabolism Ethers, Cyclic biosynthesis Hydra metabolism Hydrogen-Ion Concentration In Vitro Insects metabolism Leeches metabolism Mastigophora metabolism Microsomes enzymology Mitochondria metabolism Oxidoreductases metabolism Protozoa metabolism Snails metabolism Turbellaria metabolism 4596728 1974 06 28 1974 06 28 2003 11 14

0096-7807 4 3 1974 Mar Production of zooplankton populations in fresh waters of the USSR. 224-32 Ivanova M B MB eng Journal Article Review

UNITED STATES Sov J Ecol 0321347 7732-18-5 Water IM Animals Crustacea growth & development Daphnia growth & development Ecology Plankton growth & development Seasons USSR Water 59 4524618 1974 07 31 1974 07 31 2003 11 14

0027-8424 71 4 1974 Apr Structure and development of neuronal connections in isogenic organisms: transient gap junctions between growing optic axons and lamina neuroblasts. 1098-102 Lopresti V V Macagno E R ER Levinthal C C eng Journal Article

UNITED STATES Proc Natl Acad Sci U S A 7505876 IM Animals Axons Cell Differentiation Cell Division Daphnia embryology Desmosomes Intercellular Junctions Neurons cytology Optic Nerve cytology embryology Synapses 4152373 1974 10 07 1974 10 07 2003 11 14

0096-7807 4 4 1974 May Pathways of assimilation of dissolved organic matter by plankton organisms. 281-6 Petrova M A MA eng Journal Article Review

UNITED STATES Sov J Ecol 0321347 0 Amino Acids 0 Carbohydrates IM Algae metabolism Amino Acids metabolism Animals Annelida metabolism Bacteria metabolism Carbohydrates metabolism Cnidaria metabolism Crustacea metabolism Daphnia metabolism Diffusion Ecology Mollusca metabolism Phytoplankton metabolism Plankton metabolism Turbellaria metabolism 42 4847154 1974 10 04 1974 10 04 2003 11 14

0016-6731 77 2 1974 Jun Enzyme variability in natural populations of Daphnia magna. II. Genotypic frequencies in permanent populations. 323-34 Hebert P D PD eng Journal Article

UNITED STATES Genetics 0374636 EC 1.1.1.37 Malate Dehydrogenase EC 3.1. Esterases IM Animals Chromosome Mapping Daphnia enzymology Electrophoresis, Polyacrylamide Gel Environment Esterases analysis Gene Frequency Genotype Malate Dehydrogenase analysis Parthenogenesis Periodicity Polymorphism (Genetics) Variation (Genetics) 4847155 1974 10 04 1974 10 04 2003 11 14

0016-6731 77 2 1974 Jun Enzyme variability in natural populations of Daphnia magna. 3. Genotypic frequencies in intermittent populations. 335-41 Hebert P D PD eng Journal Article

UNITED STATES Genetics 0374636 EC 1.1.1.37 Malate Dehydrogenase EC 3.1. Esterases IM Animals Chromosome Mapping Daphnia enzymology Electrophoresis, Polyacrylamide Gel Environment Esterases analysis Gene Frequency Genotype Malate Dehydrogenase analysis Parthenogenesis Periodicity Polymorphism (Genetics) Recombination, Genetic Variation (Genetics) 4212723 1974 12 10 1974 12 10 2003 11 14

0567-655X 278 16 1974 Apr 17 [On some biological effects of nitroso derivatives] 2053-4 Plouvier V V fre Journal Article Sur la conservation des polyalcools, hétérosides et autres consituants et des activités enzymatiques dans le matériel végétal sec longtemps abandonné

FRANCE C R Acad Sci Hebd Seances Acad Sci D 7501107 0 Nitroso Compounds IM Animals Bacteria drug effects Daphnia drug effects Mice Mucous Membrane drug effects Nervous System drug effects Nitroso Compounds pharmacology toxicity Plants drug effects Structure-Activity Relationship 4412836 1974 12 18 1974 12 18 2003 11 14

0022-0949 61 1 1974 Aug Directional differences in the colour sensitivity of Daphnia magna. 261-7 Young S S eng Journal Article

ENGLAND J Exp Biol 0243705 IM Animals Color Perception Daphnia physiology Eye Movements Female Ocular Physiology Photic Stimulation Photoreceptors physiology 4420920 1975 01 06 1975 01 06 2003 11 14

0042-6989 14 8 1974 Aug The hydraulic suspension of the Daphnia eye--a new kind of universal joint? 647-52 Downing A C AC eng Journal Article

ENGLAND Vision Res 0417402 IM S Animals Daphnia anatomy & histology physiology Elasticity Eye anatomy & histology Eye Movements Joints Membranes Muscles anatomy & histology Ocular Physiology Pressure Rotation 75025842 4430014 1975 02 18 1975 02 18 2003 11 14

0009-2797 9 4 1974 Oct Aqueous chlorination and ozonation studies. I. Structure-toxicity correlations of phenolic compounds to Daphnia magna. 245-51 Kopperman H L HL Carlson R M RM Caple R R eng Journal Article

NETHERLANDS Chem Biol Interact 0227276 0 Phenols IM Animals Chemistry, Physical Comparative Study Daphnia drug effects metabolism Kinetics Mathematics Molecular Conformation Phenols metabolism toxicity Structure-Activity Relationship Time Factors 4430814 1975 02 06 1975 02 06 2003 11 14

0021-8561 22 6 1974 Nov-Dec Distribution of 14C and arsenic derived from (14C)cacodylic acid in an aquatic ecosystem. 999-1003 Schuth C K CK Isensee A R AR Woolson E A EA Kearney P C PC eng Journal Article

UNITED STATES J Agric Food Chem 0374755 0 Arsenates 0 Arsenicals 0 Carbon Radioisotopes 0 Herbicides 0 Oxides 0 Pesticide Residues 1398-61-4 Chitin 7440-38-2 Arsenic IM Algae metabolism Animals Arsenates metabolism Arsenic metabolism Arsenicals analysis metabolism Astacoidea metabolism Carbon Radioisotopes Chitin metabolism Daphnia metabolism Drug Stability Ecology Fishes metabolism Herbicides analysis metabolism Oxides Pesticide Residues analysis Plants metabolism Snails metabolism Soil analysis Time Factors 4154509 1975 02 15 1975 02 15 2003 11 14

0049-173X 4 6 1974 Nov Does regenerative capacity decrease with age? 495-503 Zamaraev V N VN eng Journal Article Review

UNITED STATES Sov J Dev Biol 0315573 IM Aging Ambystoma Animals Anura Astacoidea Beetles Birds Brachyura Cnidaria Cockroaches Daphnia Decapoda (Crustacea) Echinodermata Extremities physiology Fishes Helminths Hemiptera Hydra Insects Larva Muscles physiology Nymph Regeneration Scorpions Turbellaria Urochordata Wound Healing 58 4279749 1975 03 10 1975 03 10 2003 11 14

0037-9026 168 1 1974 [Experimental analysis of the transfer of a micropollutant (65 Zn) to the final consumer in a fresh water ecosystem] 78-82 Parouty G G Chaisemartin C C fre Journal Article Analyse expérimentale des transferts d'un micropolluant (65Zn) au consommateur terminal dans un écosystème dulçaquicole

FRANCE C R Seances Soc Biol Fil 7505439 0 Radioisotopes 0 Zinc Isotopes 7440-70-2 Calcium IM Animals Astacoidea Calcium Daphnia Fishes Food Contamination, Radioactive Fresh Water Mollusca Radioisotopes Water Pollution Zinc Isotopes analysis poisoning 4435234 1975 03 10 1975 03 10 2003 11 14

0014-9446 33 12 1974 Dec Computer-aided reconstruction from serial sections. 2336-40 Levinthal C C Macagno E E Tountas C C eng Journal Article

UNITED STATES Fed Proc 0372771 IM Animals Brain anatomy & histology Computers Daphnia Data Display Fishes Image Enhancement Models, Biological Models, Structural Motion Pictures Neurons cytology Photography Support, U.S. Gov't, Non-P.H.S. 4279859 1975 02 27 1975 02 27 2003 11 14

0016-9900 6 1974 Jun [Study of the effect of water, purified by an electrodialysis method, on certain biological objects] 90-2 Orlov A A AA rus Journal Article Izuchenie vliianiia vody, opresnennoĭ élektrodializnym sposobom, na nekotorye biologicheskie ob'ekty

USSR Gig Sanit 0412700 16291-96-6 Charcoal 7732-18-5 Water IM Animals Charcoal Daphnia drug effects Dialysis Filtration Russia Time Factors Water pharmacology 4442559 1975 04 21 1975 04 21 2003 11 14

0014-4754 30 12 1974 Dec 15 An electronic method for measuring the heart frequency of the waterflea: Daphnia pulex. 1478-80 Postmes T J TJ Nacken G G Nelissen R G RG eng Journal Article

SWITZERLAND Experientia 0376547 50-06-6 Phenobarbital IM Animals Daphnia physiology Electronics instrumentation Heart Rate drug effects Methods Phenobarbital pharmacology 4445912 1975 03 26 1975 03 26 2003 11 14

0096-7807 4 6 1974 Sep Comparative evaluation of two methods of calculating zooplankton production exemplified on the Lake Il'men population. 476-82 Stepanova L A LA eng Journal Article

UNITED STATES Sov J Ecol 0321347 IM Animals Body Weight Comparative Study Daphnia growth & development Ecology methods Plankton growth & development Reproduction Zooplankton growth & development 4447292 1975 04 23 1975 04 23 2003 11 14

0003-4037 28 2 1974 [Nutritional requirement in adenylic acid, growth and morphogenesis in Artemia salina (L.) (Crustacea, branchipode)] 65-82 Hernandorena A A fre Journal Article Besoin alimentaire en acide adénylique, croissance et morphogénèse chez Artemia salina (L.) (Crustacé, branchiopode)

FRANCE Ann Nutr Aliment 0372653 0 Culture Media 61-19-8 Adenosine Monophosphate IM Adenosine Monophosphate metabolism physiology Animal Nutrition Animals Culture Media Daphnia growth & development metabolism Germ-Free Life Morphogenesis Nutritional Requirements 4532099 1975 05 03 1975 05 03 2003 11 14

0018-067X 33 3 1974 Dec Ecological differences between genotypes in a natural population of Daphnia magna. 327-37 Hebert P D PD eng Journal Article

ENGLAND Heredity 0373007 EC 1.1.1.37 Malate Dehydrogenase IM Alleles Animals Daphnia enzymology physiology Ecology Female Gene Frequency Genetics, Population Genotype Malate Dehydrogenase analysis Male Ovum enzymology Parthenogenesis 1116808 1975 05 27 1975 05 27 2003 11 14

0071-7991 23 1 1975 Interaction of light and gravity orientation in daphnia pulex. 174-84 Jander R R eng Journal Article

GERMANY, WEST Fortschr Zool 0374625 IM S Animals Daphnia physiology Eye Movements Gravitation Light Orientation Space Perception 75113792 1090849 1975 06 09 1975 06 09 2003 11 14

0028-0836 254 5498 1975 Mar 27 Iridovirus and cytoplasmic polyhedrosis virus in the freshwater daphnid Simocephalus expinosus. 327-8 Federici B A BA Hazard E I EI eng Journal Article

ENGLAND Nature 0410462 IM Animals DNA Viruses isolation & purification Daphnia microbiology Insect Viruses isolation & purification 4457186 1975 06 29 1975 06 29 2000 12 18

0007-4861 12 6 1974 Dec Acute toxicity of various metals to freshwater zooplankton. 745-51 Baudouin M F MF Scoppa P P eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Metals IM Daphnia drug effects Dose-Response Relationship, Drug Fresh Water Lethal Dose 50 Metals toxicity Plankton drug effects Structure-Activity Relationship 236058 1975 07 23 1975 07 23 2003 11 14

0007-4861 13 3 1975 Mar Fate of dicamba in a model ecosystem. 280-3 Yu C C CC Hansen D J DJ Booth G M GM eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Benzoates 0 Carbon Radioisotopes 1918-00-9 Dicamba IM Algae Animals Autoradiography Benzoates metabolism Brachyura Carbon Radioisotopes Clams Culicidae Daphnia Dicamba metabolism Fishes Models, Biological Plants Snails Support, U.S. Gov't, Non-P.H.S. 805612 1975 08 20 1975 08 20 2003 11 14

0007-4861 13 4 1975 Apr Effects of PCB (Aroclor 1254) and p'p" DDT on production and survival of Daphnia magna Strauss. 412-6 Maki A W AW Johnson H E HE eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Polychlorinated Biphenyls 50-29-3 DDT IM Animals DDT pharmacology toxicity Daphnia physiology Lethal Dose 50 Polychlorinated Biphenyls pharmacology toxicity Reproduction drug effects 1131449 1975 08 20 1975 08 20 2003 11 14

0007-4861 13 4 1975 Apr Pick-up and metabolism of DDT, dieldrin and photodieldrin by a fresh water alga (Ankistrodesmus amalloides) and a microcrustacean (Daphnia pulex). 443-50 Neudorf S S Khan M A MA eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Carbon Radioisotopes 50-29-3 DDT 60-57-1 Dieldrin 72-54-8 DDD 72-55-9 DDE IM Algae metabolism Animals Carbon Radioisotopes DDD metabolism DDE metabolism DDT metabolism Daphnia metabolism Dieldrin metabolism Photochemistry Support, U.S. Gov't, P.H.S. Time Factors 1142185 1975 09 22 1975 09 22 2003 11 14

0022-3751 245 2 1975 Feb Cladoceran eye tremor. 48P-49P Downing A C AC Young S S eng Journal Article

ENGLAND J Physiol 0266262 IM Animals Daphnia physiology Infrared Rays Motion Pictures Ocular Physiology Tremor physiopathology Videotape Recording 238691 1975 11 06 1975 11 06 2003 11 14

0007-4861 13 5 1975 May The fate of parathion in a model ecosystem. 543-50 Yu C-C Sanborn J R JR eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 56-38-2 Parathion IM Algae metabolism Animals Biodegradation Culicidae metabolism Daphnia metabolism Fishes metabolism Models, Biological Parathion metabolism Snails metabolism Support, U.S. Gov't, Non-P.H.S. Time Factors 1148414 1975 11 06 1975 11 06 2003 11 14

0007-4861 13 5 1975 May Absorption and elimination of photodieldrin by Daphania and goldfish. 582-7 The alga, Ankistrodesmus spiralis, becomes saturated with photodieldrin in 8 hours. The Daphnia whether contaminated by feeding on the algae saturated with photodieldrin or by directly absorbing this insecticide eliminate about 50 per cent of the absorbed photodieldrin in 4 days which increases up to 70 per cent in 7 days. However, continuous exposure of daphnids to photodieldrin results in increased absorption and accumulation of this insecticide. Transfer of the goldfish contaminated with photodieldrin to clean water results in initial elimination in 24 hours whose rate in is then is then subsequently reduced. These two organisms are thus capable of eliminating their body residues of photodieldrin, the "terminal residue: of dieldrin, if their environment is decontaminated. Khan H M HM Neudorf S S Khan M A MA eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 60-57-1 Dieldrin IM Absorption Algae metabolism Animals Cyprinidae metabolism Daphnia metabolism Dieldrin metabolism Goldfish metabolism Kinetics Photochemistry Support, U.S. Gov't, P.H.S. 1151276 1975 11 05 1975 11 05 2003 11 14

0022-0949 62 1 1975 Feb Eye movements in Daphnia pulex (De Geer). 175-87 1. The various types of eye movement exhibited by the cyclopean eye of Daphnia pulex were studied using high speed motion photography. 2. This rudimentary eye, which consists of only 22 ommatidia, can move through approximately 150 degrees in the sagittal plane and 60 degrees in the horizontal plane. 3. Four classes of eye movement were found: (1) a high speed tremor at 16 Hz with an amplitude of 3-4 degrees, which resembles physiological nystagmus, (2) a slow rhythmic scanning movement at 4 Hz, and 5-6 degrees amplitude, (3) large fast eye movements similar to saccadic eye movements and (4) optokinetic nystagmus produced by moving striped patterns. 4. Where the fast tremor occurred concurrently with the slow rhythmic scan, a Fourier analysis revealed that the former was the fourth harmonic of the latter. Frost B J BJ eng Journal Article

ENGLAND J Exp Biol 0243705 IM Animals Daphnia physiology Eye Movements Female Fourier Analysis Light Ocular Physiology Orientation Physical Stimulation Support, U.S. Gov't, P.H.S. Visual Fields 807992 1975 11 06 1975 11 06 2003 11 14

0300-483X 4 2 1975 May Standard curves for nuvacron, malathion, sevin, DDT and kelthane tested against the mosquito Culex pipiens L. and the microcrustacean Daphnia magna Straus. 133-44 The fourth instar larvae of Culex pipiens L. and adults of microcrustacean Daphnia magna Straus were reared under standardized conditions and used as bioassay test organisms for the preparation of the standard log concentration--probit (lc--p) regression lines for each of the following pesticides: nuvacron, malathion, sevin, DDT and kelthane. When the above pesticides were tested against the larvae of C. pipiens, the LC50 values (in ppm) ranged as follows: nuvacron 0.0014--0.0019, malathion 0.0027-0.0043, sevin 0.059-0.095, DDT 0.233-0.525, kelthane 0.17-0.24 and a mixture of malathion, DDT and kelthane (3 : 10 : 5) 0.1805-0.2451, based on 24-h readings. The corresponding LC50 values (in ppm) for D. magna were 0.00018-0.00032, 0.000074-0.00013, 0.00063-0.00069, 0.0061-0.0064, 0.071-0.090 and 0.055-0.028 for the aforementioned pesticides. D. magna proved to be more sensitive to all tested pesticides than C. pipiens larvae: it succumbed to concentrations ranging from 0.000032 to 0.004 ppm of nuvacron, from 0.000032 to 0.0016 ppm of malathion, from 0.000032 to 0.02 ppm of sevin, from 0.0008 to 0.1 ppm of DDT, from 0.03 to 0.3 ppm of kelthane and from 0.007 to 0.075 ppm of the mixture. C. pipiens larvae were affected by concentrations ranging from 0.0005 to 0.008 ppm of of nuvacron, from 0.0005 to 0.04 ppm of malathion, from 0.008 to 1.0 ppm of sevin, from 0.05 to 2.5 ppm of DDT, from 0.06 to 0.5 ppm of kelthane and from 0.07 to 0.75 ppm of the mixture. Rawash I A IA Gaaboub I A IA El-Gayar E M EM El-Shazli A Y AY eng Journal Article

NETHERLANDS Toxicology 0361055 0 Insecticides 115-32-2 Dicofol 121-75-5 Malathion 50-29-3 DDT 63-25-2 Carbaryl IM Animals Biological Assay Carbaryl toxicity Culex DDT toxicity Daphnia Dicofol toxicity Insecticides toxicity Larva Lethal Dose 50 Malathion toxicity 807993 1975 11 06 1975 11 06 2003 11 14

0300-483X 4 2 1975 May Effects of plant species, age and part on the disappearance of sevin, nuvacron and malathion residues. 145-56 Residues as determined by bioassay using Daphnia or mosquito larvae were in agreement with each other in most cases except sevin residues at 1 h and 8 days after treatment of mallow. The mosquito larvae failed to record nuvacron, sevin and malathion on 45-day-old plants on the 8th, 12th and 24th day, respectively, whereas residues on younger plants continued to affect mosquitoes up to the 12th day and disappeared only on the 24th day. Daphnia continued to show toxicity up to the 24th day on younger and older plants. Insecticide residues of nuvacron, malathion and sevin, found on the leaves 30- and 45-day-old plants of cotton, Jew's mallow and kidney beans after 1 h, 1, 4, 8, 12 and 24 days were estimated biologically by C. pipiens larvae and D. magna. Residues of insecticides disappeared more readily on bean pods than on bean leaves. Residues of sevin, malathion and nuvacron found on the pods 12 days after treatment as indicated by Daphnia were 0.189, 0.055 and 0.059 ppm respectively. They are far less than the corresponding residues on bean leaves. The 1-hour residue was higher on younger bean leaves than on mallow and cotton with very few exceptions (nuvacron, malathion and sevin: 2.125, 11.75 and 95 ppm on cotton leaves; 2.25 and 145 ppm on Jew's mallow and 3.750, 32.500 and 250 ppm on common bean leaves, respectively). These data were obtained with C. pipiens larvae. The picture was completely reversed on 45-day-old plants. 1-h deposits of malathion were higher on mallow than on cotton or beans (nuvacron, malathion and sevin; 2.3, 200 and 140 ppm on cotton leaves, 1.90, 191.15 and 92.86 ppm on mallow leaves, 2.25, 21.5 and 137.5 ppm on common bean leaves, respectively). These data were obtained with C. pipiens larvae. Nuvacron residues on 45-day-old mallow were less on mallow than on cotton or beans. Sevin was higher in 1-h residues on cotton and beans than on mallow. Mallow did not retain insecticides as long as did cotton and beans. The initial concentration of nuvacron was little less than that of sevin and malathion. It was more toxic to mosquito larva (LC50 = 0.0016 ppm) than malathion (LC50 = 0.0034 ppm) and sevin (LC50 = 0.075 ppm). Daphnia was more affected by malathion (LC50 = 0.000098 ppm) than by nuvacron (LC50 = 0.00024 ppm). Nuvacron was nearly equitoxic to sevin (LC50 = 0.00026 ppm) against Daphnia. In spite of this all tested plants, both young or older ones, retained nuvacron in the smallest quantities in proportion to the other insecticides. The 1-h residues were less on older plants (except cotton) for only nuvacron and sevin: 2 and 94.5, 1.9 and 92.8 ppm than on younger ones 2.4 and 137.2, 2.25 and 145 ppm as indicated by Daphnia and mosquito larvae respectively. This emphasizes that the initial concentration is not the limiting factor for the determination of the 1-h residue as the initial concentration was much higher on older than on younger plants. Rawash I A IA Gaaboub I A IA El-Gayar F M FM El-Shazli A Y AY eng Journal Article

NETHERLANDS Toxicology 0361055 0 Insecticides 0 Pesticide Residues 121-75-5 Malathion 63-25-2 Carbaryl IM Animals Biological Assay Carbaryl metabolism pharmacology Culex Daphnia Gossypium Insecticides metabolism Malathion metabolism pharmacology Pesticide Residues metabolism pharmacology Plants Species Specificity Time Factors 1154420 1975 11 06 1975 11 06 2003 11 14

0300-483X 4 2 1975 May Residue analysis of DDT, malathion and kelthane on pears. 157-63 Malthion, DDT, kelthane and their mixture (3 : 10 : 5) were applied to pear fruits at the rate recommended by the Ministry of Agriculture. The rate of disappearance of their residues on pear fruits was investigated under refrigerated conditions (2 +/- 1 degree and 47% relative humidity (RH)). The same insecticides were tested in higher concentrations (1.5 and 2 times) to determine the effect of insecticides on the black spots usually found on pears after storage. No relation was found between the tested insecticides and the appearance of the black spots. Residue-disappearance curves of the three tested concentrations of these insecticides and their mixture were drawn on semi-log paper. The residues of each material found on pear fruits after one hour, 1, 8, 15, 30 and 45 days' storage in a refrigerator, estimated biologically by C. pipiens larvae and D. magna were recorded. The highest concentrations of the mixture and of the individual insecticides left higher residues on pears than the lower ones of all the insecticides either as a mixture or alone. Stored pears, refrigerated under the above conditions immediately after treatment with the mixture of insecticides recommended for the pest control of pears, cannot be consumed fresh after 45 days. Rawash I A IA El-Gayar F M FM Gaaboub I A IA El-Shazli A Y AY eng Journal Article

NETHERLANDS Toxicology 0361055 0 Insecticides, Organochlorine 0 Pesticide Residues 115-32-2 Dicofol 121-75-5 Malathion 50-29-3 DDT IM Animals Biological Assay Culex DDT analysis pharmacology Daphnia Dicofol analysis pharmacology Fruit analysis Insecticides, Organochlorine analysis Malathion analysis pharmacology Pesticide Residues analysis pharmacology Time Factors 1155967 1975 11 01 1975 11 01 2003 11 14

0090-4341 3 2 1975 Plasticizers in the environment: the fate of di-N-octyl phthalate (DOP) in two model ecosystems and uptake and metabolism of DOP by aquatic organisms. 244-55 The fate of the plasticizer, di-n-octyl phthalate (DOP) has been examined in 33-day terrestrial-aquatic and three-day aquatic model ecosystems. The five organisms of the two systems contained residues of DOP, demonstrating the propensity of this lipoid soluble organic molecule to be concentrated from the water. The residues in the organisms in the three-day system were higher than in the 33-day system with the exception of the fish, indicating perhaps, that DOP can undergo some degradation before the fish is placed in the system on the 30th day. A half-life of five days for DOP disappearance from the water was calculated from water samples taken periodically. Further, effects of mixed function oxidase and esterase inhibitors were investigated on the metabolism of DOP by various selected organisms and tissues of the two ecosystems. Sanborn J R JR Metcalf R L RL Yu C C CC Lu P Y PY eng Journal Article

UNITED STATES Arch Environ Contam Toxicol 0357245 0 Phthalic Acids 0 Tritolyl Phosphates 51-03-6 Piperonyl Butoxide IM Algae metabolism Animals Biodegradation Culex metabolism Daphnia metabolism Ecology Fishes metabolism In Vitro Insects metabolism Larva Microsomes, Liver metabolism Models, Biological Phthalic Acids metabolism Piperonyl Butoxide pharmacology Snails metabolism Support, U.S. Gov't, Non-P.H.S. Tritolyl Phosphates pharmacology 1174284 1975 12 04 1975 12 04 2003 11 14

0001-6683 37 1 1975 Jul Toxicity of 5-hydroxymethylfurfural and furfural to Daphnia magna. 94-6 Hessov I I eng Journal Article

DENMARK Acta Pharmacol Toxicol (Copenh) 0370572 98-01-1 Furaldehyde IM Animals Daphnia Furaldehyde analogs & derivatives toxicity 4467665 1975 12 11 1975 12 11 2003 11 14

0044-3573 36 1974 Genetics and molecular ethology. 267-292 Gould J L JL eng Journal Article

GERMANY, WEST Z Tierpsychol 0033336 IM Animals Bacteria Bees Behavior, Animal Breeding Circadian Rhythm Coliphages Daphnia Drosophila Ethology Euglena Genetics, Behavioral Grasshoppers Learning Mice Mutation Nematoda Paramecium Parrots Vocalization, Animal 1211734 1976 03 18 1976 03 18 2003 11 14

0003-4037 29 3 1975 [Quantitative variations in food intake of Ranatra linearis L. (aquatic heteropter, carnivore)] 245-57 Among causes of variation of ingestion in Ranatra linearis (Heteroptera) the following aspects have been studied:--different stages of development; --annual rhythm; --the state of repletion or fast. Cloarec A A fre Journal Article Variations quantitatives de la prise alimentaire chez Ranatra linearis L. (hétéroptère aquatique, carnivore)

FRANCE Ann Nutr Aliment 0372653 IM Age Factors Animals Arthropods growth & development Body Weight Daphnia Diet Eating English Abstract Hemiptera physiology Larva physiology Seasons Starvation Time Factors 1248033 1976 04 15 1976 04 15 2003 11 14

0302-766X 166 1 1976 Feb 6 Distribution of monoaminergic neurons in the nervous system of non-malacostracan crustaceans. 1-24 A comparative investigation of the distribution of monoaminergic neurons in non-malacostracan crustaceans was performed with the histochemical fluorescence method of Falck-Hillarp. Two fluorophores were found: the more widespread of the two emits a green fluorescence; and the more sparsely distributed emits a yellow to brown-yellow fluorescence. Specific green fluorescent areas were shown to exist in the protocerebrum. The central body and the optic ganglia of the compound eye (where present) are always fluorescent. Moreover, the centre of the nauplius eye may have a green fluorophore, as in ostracods, and a neuropile area, here called the frontal area. These neuropile centres are known from ordinary histological studies of the nervous system. In addition, there are specific monoaminergic centres, such as the so-called dorsal area of phyllopods and anostracans as well as the copepod specific areas. Specific monoaminergic areas appear in the deutocerebrum and the suboesophageal ganglion where they are particularly well developed. Presumed sensory neurons in the cavity receptor organ of Artemia saliva are shown to be monoaminergic. Monoaminergic sensory neurons have not been described previously in Arthropods. Presumed motor innervation of hind-gut and trunk muscles is also found, and it is concluded that in crustaceans neurons of every type (sensory, internuncial, motor) may be monoaminergic. Aramant R R Elofsson R R eng Journal Article

UNITED STATES Cell Tissue Res 0417625 0 Biogenic Amines 0 Catecholamines IM Animals Biogenic Amines analysis Brain Chemistry Catecholamines analysis Crustacea anatomy & histology Daphnia anatomy & histology Decapoda (Crustacea) anatomy & histology Eye analysis Ganglia analysis Histocytochemistry Interneurons analysis Microscopy, Fluorescence Motor Neurons analysis Neurons analysis Spinal Cord analysis 1213020 1976 04 19 1976 04 19 2003 11 14

0013-9351 10 3 1975 Dec Toxicity of polydimethylsiloxanes in certain environmental systems. 397-406 Keplinger M L ML Calandra J C JC eng Journal Article

UNITED STATES Environ Res 0147621 0 Carbon Radioisotopes 0 Dimethylpolysiloxanes 0 Silicones IM Animals Bacteria isolation & purification Biodegradation Carbon Radioisotopes Chickens physiology Daphnia drug effects Dimethylpolysiloxanes analysis toxicity Ducks Eggs analysis Environmental Health Fish Products analysis Fishes physiology Lethal Dose 50 Quail Sewage Silicones toxicity 943580 1976 05 25 1976 05 25 2003 11 14

0043-1303 48 1 1976 Jan Comparative toxicity of polyelectrolytes to selected aquatic animals. 183-7 Biesinger K E KE Lemke A E AE Smith W E WE Tyo R M RM eng Journal Article

UNITED STATES J Water Pollut Control Fed 7505562 0 Electrolytes 0 Polymers IM Animals Brachyura physiology Daphnia physiology Electrolytes toxicity Fishes physiology Polymers toxicity Salmonidae physiology Time Factors Trout physiology 1263525 1976 07 06 1976 07 06 2003 11 14

0022-5193 56 1 1976 Jan The effect of age of founder on the probability of survival of a colony. 175-90 Williamson J A JA Charlesworth B B eng Journal Article

ENGLAND J Theor Biol 0376342 IM Age Factors Animals Daphnia growth & development Ecology Models, Biological Population Growth Probability Reproduction Support, U.S. Gov't, Non-P.H.S. 1268342 1976 08 02 1976 08 02 2003 11 14

0007-4861 15 3 1976 Mar Endrin toxicity and distribution in freshwater: a review. 283-90 Grant B F BF eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Water Pollutants, Chemical 72-20-8 Endrin 7732-18-5 Water IM Algae metabolism Animals Anura Crustacea Daphnia metabolism Drug Resistance Endrin analysis metabolism toxicity Fishes Fresh Water analysis Lethal Dose 50 Salmon Time Factors Trout Water analysis Water Pollutants, Chemical analysis 5275 1976 08 03 1976 08 03 2003 11 14

0340-4714 3 1975 The usefulness of model ecosystems in insecticide development. 351-8 Booth G M GM eng Journal Article

GERMANY, WEST Environ Qual Saf Suppl 7512713 0 Insecticides 1563-66-2 Carbofuran 50-29-3 DDT 7732-18-5 Water IM Algae metabolism Animals Biodegradation Carbofuran analysis Chromatography, Thin Layer Culicidae metabolism DDT analogs & derivatives analysis Daphnia metabolism Ecology Fishes metabolism Insecticides analysis Models, Biological Snails metabolism Water analysis 1270989 1976 08 02 1976 08 02 2003 11 14

0022-0949 64 1 1976 Feb The receptive fields of Daphnia ommatidia. 185-202 1. The focal length and positions of the principal planes of an isolated Daphnia lens were determined, and the refractive index of the rhabdom was measured. 2. The lens can form an image, but this always lies well behind the rhabdom. This was confirmed by direct observation of images inside a clear-eye mutant Daphnia eye. 3. The rhabdom was shown to be unlikely to function as a waveguide, and a ray optics model is proposed to enable the prediction of ommatidial receptive fields from the lens data. 4. The predicted receptive fields have wide plateaus and steep sides, and there are virtually no totally blind gaps between neighbouring ommatidia. Young S S Downing A C AC eng Journal Article

ENGLAND J Exp Biol 0243705 IM Animals Daphnia physiology Hemolymph physiology Lens, Crystalline physiology Mutation Ocular Physiology Refraction, Ocular Visual Fields 1064586 1976 09 01 1976 09 01 2003 11 14

0018-067X 36 3 1976 Jun Enzyme variability in natural populations of Daphnia magna. IV. Ecological differentiation and frequency changes of genotypes at Audley End. 331-41 Genotypic frequencies were analysed for two years in a permanent population of the cladoceran crustacean, Daphnia magna, which was polymorphic for an esterase and for malate dehydrogenase. Large temporal changes in genotypic frequencies occurred at both loci. There was no evidence of a seasonal pattern in the frequency changes. In most samples, genotypes at the two enzyme loci were non-randomly associated; these associations showed temporal changes. On some occasions marked spatial heterogeneity in genotypic frequencies existed within the population. Genotypic differences in parthenogenetic and sexual egg production were observed. In a primarily parthenogenetically reproducing population, non-random associations between genotypes of structural and regulatory loci will be the rule. The allozyme variants themselves may or may not be under selection. The relevance of these observations to ecological studies on Daphnia is considered. Hebert P D PD Ward R D RD eng Journal Article

ENGLAND Heredity 0373007 EC 1.1.1.37 Malate Dehydrogenase EC 3.1. Esterases IM Animals Daphnia enzymology England Esterases metabolism Female Gene Frequency Genotype Malate Dehydrogenase metabolism Male Parthenogenesis Polymorphism (Genetics) Variation (Genetics) 1229771 1976 08 23 1976 08 23 2003 11 14

0044-3573 37 4 1975 Jun [Selection of strays from the group by predators during prey] 400-2 Equally sated three-spined sticklebacks (Gasterosteus aculeatus) that had a free view of stray individuals and of a swarm of Daphnia magna preferentially preyed upon the strays; the resulting risk to the strays increased with swarm density (a leads to c leads to e in Fig. 1). This applied also to situations with constant swarm numbers but varied density (a leads to b, d leads to e). The results from two experiments with equal swarm density (b/e, c/d) suggest selection to be affected also by swarm number and/or volume. Milinski M M Curio E E ger Journal Article Untersuchungen zur Selektion durch Räuber gegen Vereinzelung der Beute

GERMANY, WEST Z Tierpsychol 0033336 IM Animals Appetitive Behavior Daphnia English Abstract Fishes Mass Behavior Predatory Behavior 938765 1976 09 25 1976 09 25 2003 11 14

0007-4861 15 6 1976 Jun The short-term toxicity of some feed additives to different freshwater organisms. 720-5 The short-term toxicity (EC50 respectively LC50 after 2 or 4 days) of 13 feed additives was determined to 4 freshwater organisms of different trophical levels: Chlorella pyrenoidosa, Daphnia magna, Lebistes reticulatus and Salmo gairdneri. The most toxic (LC(EC)50 less than 1 mg/1) were robenidine (to all tested organisms) and stenorol (to Daphnia); moderately toxic (1 less than LC(EC)50 less than 10 mg/1) was pyrimethamine. Amprolium, ethopabate, furazolidone and zoalene proved to be little toxic (LC(EC)50 greater than 10 mg/1); whereas buquinolate, carbadox, clopidol, decoquinate, grofas and sulfaquinoxaline were under the experimental conditions not toxic for the tested organisms. Canton J H JH van Esch G J GJ eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Food Additives IM Animals Chlorella physiology Daphnia physiology Fishes physiology Food Additives toxicity Lethal Dose 50 Salmon physiology 1065532 1976 09 25 1976 09 25 2003 11 14

0091-7451 40 1976 Anatomy and development of identified cells in isogenic organisms. 321-31 Levinthal F F Macagno E E Levinthal C C eng Journal Article

UNITED STATES Cold Spring Harb Symp Quant Biol 1256107 IM Animals Brain cytology growth & development Computers Daphnia Dendrites Female Fishes Ganglia cytology Genetics Optic Chiasm cytology growth & development Optic Nerve Support, U.S. Gov't, P.H.S. Synapses ultrastructure 958498 1976 10 20 1976 10 20 2003 11 14

0028-1042 63 5 1976 May Effects of sublethal concentrations of herbicide on Daphnia. 241-2 Schober U U Lampert W W eng Journal Article

GERMANY, WEST Naturwissenschaften 0400767 1912-24-9 Atrazine IM Animals Atrazine pharmacology Daphnia drug effects growth & development Dose-Response Relationship, Drug Reproduction drug effects Time Factors 963326 1976 11 21 1976 11 21 2003 11 14

0007-4861 16 2 1976 Aug The toxicity of benomyl, thiophanate-methyl, and BCM to four freshwater organisms. 214-24 The EC50 or LC50 values after a 2-day exposure of the three fungicides benomyl, thiophanate-methyl and BCM, have been determined using four freshwater organisms: Chlorella pyrenoidosa, Daphnia magna, Lebistes reticulatus and Salmo gairdneri. The influence of BCM on the reproductive capacity of Daphnia was also investigated and from these data provisional ecological limit was established. Canton J H JH eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Benzimidazoles 0 Carbamates 17804-35-2 Benomyl 23564-05-8 Thiophanate IM Animals Benomyl toxicity Benzimidazoles toxicity Carbamates toxicity Chlorella drug effects Daphnia drug effects Fishes physiology Lethal Dose 50 Salmonidae physiology Thiophanate toxicity Time Factors Trout physiology 971813 1976 12 03 1976 12 03 2003 11 14

0016-9277 97 5 1976 May [Proof of insignificant, water pollution by pesticides using a technic based on the physiological function] 106-8, 113 Kneffel S S Dési I I Sárosi é ger Journal Article Nachweis der geringfügigen pesticiden Wasserverschmutzung mit Hilfe einer auf der Veränderung der physiologischen Funktion beruhenden Methode

GERMANY, WEST Gesund Ing 0370743 0 Pesticide Residues 0 Pesticides IM Animals Daphnia drug effects Methods Mussels drug effects Pesticide Residues analysis Pesticides adverse effects Water Pollution, Chemical analysis 789062 1976 12 30 1976 12 30 2003 11 14

0091-6765 14 1976 Apr Degradation, metabolism and toxicity of synthetic pyrethroids. 15-28 Synthetic pyrethroidal compounds undergo biodegradation in mammals both oxidatively and hydrolytically, and depending on the type of compound, either of the pathways may predominate. Thus, (+) - or (+/-) -trans isomers of the chrysanthemumate ester of primary alcohols such as fenothrin, furamethrin, proparthrin, resmethrin, and tetramethrin (and possibly permethrin, too) are metabolized mainly through hydrolysis of the ester linkage, with subsequent oxidation and/or conjugation of the component alcohol and acid moieties. On the other hand, the corresponding (+)-cis enantiometers and chrysanthemumate of secondary alcohols like allethrin are resistant to hydrolytic attack, and biodegraded via oxidation at various sites of the molecule. These rapid metabolic degradations, together with the presumable incomplete absorption from the gastrointestinal tract, would generally contribute to the low acute toxicity of synthetic pyrethroids. These compounds are neither skin irritants nor skin sensitizers, and inhalation toxicity as well as dermal toxicity are fairly low. Neither is teratogenic in rats, mice, and/or rabbits or mutagenic on various bacterial strains. Subacute and chronic feeding of higher amounts of the compounds to rats invariably causes some histopathological changes in liver; however, these are neither indicative nor suggestive of tumorigenicity. Based on existing toxicological information, the present recommended use patterns might afford sufficient safety margin on human population. However, in extending usage to agricultural pest control, much more extensive investigations should be forthcoming from both chemical and biological aspects, since there is scant information on the fate of these pyrethroids in the environment. Also several of the compounds may be very toxic to certain kinds of fish and arthropods. Miyamoto J J eng Journal Article Review

UNITED STATES Environ Health Perspect 0330411 0 Aerosols 0 Mutagens 0 Pyrethrins 0 Teratogens IM Administration, Oral Aerosols Animals Biodegradation Daphnia Dogs Environment Fishes Guinea Pigs Mice Mutagens Pyrethrins administration & dosage metabolism toxicity Rabbits Rats Skin drug effects Teratogens Time Factors 46 824706 1976 12 30 1976 12 30 2003 11 14

0035-7715 27 5 1976 [Effect of chlorophene on aqueous organisms and chemical characteristics of changes in aqueous medium caused by this substance] 555-61 Luczak J J Rybak M M Zyciński D D pol Journal Article Wpływ chlorofenu na organizmy wodne oraz charakterystyka chemiczna zmian w środowisku wodnym pod wpływem tego preparatu

POLAND Rocz Panstw Zakl Hig 0414756 0 Polychlorinated Biphenyls IM Animals Daphnia drug effects English Abstract Fishes Polychlorinated Biphenyls pharmacology Snails drug effects Water Pollution, Chemical 185747 1976 12 30 1976 12 30 2003 11 14

0040-8166 8 3 1976 The fine structure of the digestive system of Daphnia pulex (Crustacea: Cladocera). 479-90 The alimentary canal of Daphnia pulex consists of a tube-shaped foregut, a midgut (mesenteron) with an anterior pair of small diverticula, and a short hindgut. The foregut and hindgut are structurally similar. Each is formed by a low cuboidal epithelium 5 mum tall and lined with a chitinous intima. The midgut wall consists of a simple epithelium resting on a thick beaded basal lamina which is surrounded by a spiraling muscularis. Anteriorly the midgut cells are columnar in shape being 30 mum in height each having a basal nucleus, anteriorly concentrated mitochondria and in apical border of long thin microvilli. Posteriorly the midgut cells become progressively shorter so that in the posteriormost region of the midgut the cells are 5 mum tall and cuboidal in shape. The microvilli concomitantly become shorter and thicker. All mesenteron cells contain the usual cytoplasmic organelles. The paired digestive diverticula are simple evaginations of the midgut. The wall of each consists of a simple epithelium of cuboidal cells 25 mum in height, each with a brushed border of long thin microvilli. Enzyme secretion appears to be holocrine in mode and not confined to any one region of the mesenteron though definitely polarized anteriorly. The thin gut muscularis encircles the entire length of the midgut and caeca. Thick and thin filaments appear to be in a 6:1 ratio. Schultz T W TW Kennedy J R JR eng Journal Article

ENGLAND Tissue Cell 0214745 IM Animals Cell Membrane ultrastructure Cell Nucleus ultrastructure Daphnia ultrastructure Digestive System ultrastructure Endoplasmic Reticulum ultrastructure Epithelial Cells Epithelium ultrastructure Esophagus ultrastructure Golgi Apparatus ultrastructure Inclusion Bodies ultrastructure Intercellular Junctions ultrastructure Lysosomes ultrastructure Mitochondria ultrastructure Muscles ultrastructure Myofibrils ultrastructure 1036745 1977 02 26 1977 02 26 2003 11 14

0021-8561 24 6 1976 Nov-Dec Soil persistence and aquatic bioaccumulation potential of hexachlorobenzene (HCB). 1210-4 Isensee A R AR Holden E R ER Woolson E A EA Jones G E GE eng Journal Article

UNITED STATES J Agric Food Chem 0374755 0 Chlorobenzenes 0 Pesticide Residues 0 Soil Pollutants 0 Water Pollutants 0 Water Pollutants, Chemical 118-74-1 Hexachlorobenzene IM Algae metabolism Animals Chlorobenzenes analysis Cyprinodontiformes metabolism Daphnia metabolism Drug Stability Ecology Fishes metabolism Hexachlorobenzene analysis metabolism Models, Biological Pesticide Residues analysis Snails metabolism Soil Pollutants analysis Time Factors Water Pollutants analysis Water Pollutants, Chemical analysis 1087738 1977 03 31 1977 03 31 2003 11 14

0079-6123 45 1976 The formation of continuously ordered mappings. 327-57 Gaze R M RM Hope R A RA eng Journal Article

NETHERLANDS Prog Brain Res 0376441 IM Animals Brain embryology Daphnia Goldfish Hamsters Leeches Models, Neurological Nerve Regeneration Neural Pathways physiology Octopus Optic Nerve physiology Rana temporaria Synapses physiology Xenopus 836975 1977 04 30 1977 04 30 2003 11 14

0007-4861 17 1 1977 Jan Toxic interaction of mixtures of two coal conversion effluent components (resorcinol and 6-methylquinoline) to Daphnia magna. 25-32 Herbes S E SE Beauchamp J J JJ eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Industrial Waste 0 Quinolines 0 Resorcinols IM Animals Coal Daphnia drug effects Drug Interactions Industrial Waste Quinolines toxicity Resorcinols toxicity Support, U.S. Gov't, Non-P.H.S. 1035813 1977 05 27 1977 05 27 2000 12 18

0377-1202 14 2 1976 Apr-Jun Incidence and significance of precipitating antibodies in occupational and non-occupational extrinsic non-atopic (type III) asthma (bronchial asthma with precipitins). 133-8 Precipitating antibodies against different organic enviromental dusts were studied in 37 patients with suggestive symptoms of nonatopic bronchial asthma, comparatively with a group of 4 patients with atopic asthma and with a group of asymptomatic subjects, exposed to the same organic dusts as the majority of patients. Precipitins were found present in over 75% of the sera from patients with infectious type non-atopic asthma and were associated with positive semidelayed type skin tests as well as with positive bronchial provocation tests a few hours after antigen inhalation. No precipitins were found in the sera from patients with atopic asthma. Precipitating antibodies were also found but in lower percentages (30%) and at lower titers, in clinically asymptomatic subjects who were occupationally exposed to the respective antigens. It was demonstrated that the presence of precipitins in the sera of patients with bronchial asthma is a valuable diagnostic element which confirms the clinical and anamnestic data. The pathogenic role of precipitins is not yet clear. It might be related to the amount of these precipitins in the serum. Gheorghiu M M Giuglea C C Bănescu O O Popescu I G IG eng Journal Article

ROMANIA Med Interne 7506353 0 Antigens 0 Precipitins IM Antigens Aspergillosis immunology Asthma immunology Basidiomycota Comparative Study Daphnia Farmer's Lung immunology Human Occupational Diseases immunology Precipitins analysis Respiratory Hypersensitivity immunology Silo Filler's Disease immunology Skin Tests Wood 851651 1977 06 22 1977 06 22 2003 11 14

0007-4861 17 3 1977 Mar Effects of sublethal concentrations of the herbicide Atrazin on Growth and reproduction of Daphnia pulex. 269-77 Schober U U Lampert W W eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Solvents 1912-24-9 Atrazine IM Animals Atrazine pharmacology Daphnia drug effects growth & development Longevity drug effects Reproduction drug effects Solvents pharmacology Starvation physiopathology Time Factors 876683 1977 08 25 1977 08 25 2003 11 14

0031-1820 74 3 1977 Jun Interference with Fasciola hepatica snail finding by various aquatic organisms. 285-90 Previous studies using radioactive miracidia have shown that a number of non-host snails and bivalves, interposed as 'decoys' in linear test channels, may interfere with the capacity of Fasciola hepatica miracidia to infect Lymnaea truncatula. Applying similar experimental principles, the role of several other potential interferents have been analysed in the present study. Daphnia pulex (Cladocera) and larvae of Corethra sp. (Diptera) exercised significant interfering effects by protecting 'target' snails from infection. Evidence suggested that this effect was a result of their normal predatory behaviour. Other organisms including Herpobdella testacea and Helobdella stagnalis (Hirudinea), Acellus aquaticus (Isopoda), Planaria lugubris (Turbellaria) and L. truncatula egg clusters failed to interfere with miracidial host-finding. Nor did P. lugubris and L. truncatula 'conditioned water' interfere with the capacity of the miracidia to infect their host snail. Christensen N O NO Nansen P P Frandsen F F eng Journal Article

ENGLAND Parasitology 0401121 IM Animals Crustacea physiology Diptera physiology Ecology Fasciola hepatica physiology Lymnaea parasitology Plants Predatory Behavior 890151 1977 10 31 1977 10 31 2000 12 18

0007-4861 18 2 1977 Aug A 96-hour sediment bioassay of Duluth and Superior Harbor basins (Minnesota) using Hexagenia limbata, Asellus communis, Daphnia magna, and Pimephales promelas as test organisms. 159-69 Prater B L BL Anderson M A MA eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Water Pollutants 0 Water Pollutants, Chemical 7782-44-7 Oxygen IM Biological Assay Crustacea drug effects Daphnia drug effects Fresh Water analysis Great Lakes Region Invertebrates drug effects Minnesota Oxygen analysis Soil analysis Temperature Water Pollutants analysis Water Pollutants, Chemical analysis pharmacology 20063 1977 10 31 1977 10 31 2003 11 14

0090-4341 6 2-3 1977 The Environmental fate of three carcinogens: benzo-(alpha)-pyrene, benzidine, and vinyl chloride evaluated in laboratory model ecosystems. 129-42 Radiolabeled benzo-((alpha)-pyrene, benzidine, and vinyl chloride were evaluated in laboratory model ecosystems for environmental fate, degradation pathways, bioconcentration, and food chain accumulation. The comparative effects of microsomal detoxications were evaluated using the inhibitor piperonyl butoxide. The accumulation and bioconcentration of benzo-(alpha)-pyrene and benzidine were closely correlated with their octanol/water partition coefficients and water solubility. Benzo-(alpha)-pyrene as predicted by these parameters was bioaccumulated to substantial levels in several organisms. Vinyl chloride was not accumulated because of its high volatility. Lu P Y PY Metcalf R L RL Plummer N N Mandel D D eng Journal Article

UNITED STATES Arch Environ Contam Toxicol 0357245 0 Benzidines 0 Benzopyrenes 0 Vinyl Compounds 51-03-6 Piperonyl Butoxide 75-01-4 Vinyl Chloride IM Algae, Green metabolism Animals Benzidines analysis metabolism Benzopyrenes analysis metabolism Culicidae metabolism Cyprinodontiformes metabolism Daphnia metabolism Insects metabolism Larva metabolism Photolysis Piperonyl Butoxide pharmacology Snails metabolism Soil analysis Support, U.S. Gov't, Non-P.H.S. Time Factors Vinyl Chloride analysis metabolism Vinyl Compounds analysis 409541 1977 11 25 1977 11 25 2003 11 14

0567-655X 285 1 1977 Jul 4 [Pollution in Lake Leman. Evidence for the accumulation of tin in crustacean plankton: first results obtained by X ray spectrography] 113-6 Zooplankton was collected monthly from Leman Lake, from November 1976 to April 1977. Six of the most representative species of freshwater zooplankton were analyzed: Bosmina sp, Daphnia longispina, Bythotrephes longimanus, Leptodora kindtii, Eudiaptomus gracilis and Cyclops prealpinus. All of the samples were shown to accumulate tin in their different organs and tissues where high values were generally found. The consequences of concentration of this toxic element for aquatic food chains are discussed. Chassard-Bouchaud C C Balvay G G Kleinbauer F F fre Journal Article Pollution du lac Léman. Mise en évidence d'une accumulation d'étain par les crustacés planctoniques: premières données obtenues par spectrographie des rayons X.

FRANCE C R Acad Sci Hebd Seances Acad Sci D 7501107 0 Water Pollutants 0 Water Pollutants, Chemical 7440-31-5 Tin IM Animals Crustacea English Abstract Fresh Water Plankton analysis Species Specificity Spectrometry, X-Ray Emission methods Tin analysis Water Pollutants analysis Water Pollutants, Chemical analysis 1037611 1977 11 25 1977 11 25 2003 11 14

0091-6765 18 1976 Dec Model ecosystem evaluation of the environmental impacts of the veterinary drugs phenothiazine, sulfamethazine, clopidol, and diethylstilbestrol. 167-79 Four veterinary drugs of dissimilar chemical structures were evaluated for environmental stability and penchant for bioaccumulation. The techniques used were (1) a model aquatic ecosystem (3 days) and (2) a model feedlot ecosystem (33 days) in which the drugs were introduced via the excreta of chicks or mice. The model feedlot ecosystem was supported by metabolism cage studies to determine the amount and the form of the drug excreted by the chicks or mice. Considerable quantities of all the drugs were excreted intact or as environmentally short-lived conjugates. Diethylstilbestrol (DES) and Clopidol were the most persistent molecules, but only DES bioaccumulated to any appreciable degree. Phenothiazine was very biodegradable; sulfamethazine was relatively biodegradable and only accumulated in the organisms to very low levels. Data from the aquatic model ecosystem demonstrated a good correlation between the partition coefficients of the drugs and their accumulation in the fish. Coats J R JR Metcalf R L RL Lu P Y PY Brown D D DD Williams J F JF Hansen L G LG eng Journal Article

UNITED STATES Environ Health Perspect 0330411 0 Phenothiazines 0 Pyridines 2971-90-6 Clopidol 56-53-1 Diethylstilbestrol 57-68-1 Sulfamethazine IM Algae, Green Animals Chickens Clopidol metabolism toxicity Culex Cyprinodontiformes Daphnia Diethylstilbestrol metabolism toxicity Ecology Environmental Exposure Feces analysis Mice Phenothiazines metabolism toxicity Pyridines metabolism Snails Sulfamethazine metabolism toxicity Support, U.S. Gov't, Non-P.H.S. 908314 1977 11 30 1977 11 30 2003 11 14

0091-6765 19 1977 Aug Characterization of arsenic compounds formed by Daphnia magna and Tetraselmis chuii from inorganic arsenate. 61-6 Experiments to grow Tetraselmis chuii (a marine alga) and Daphnia magna in the presence of inorganic arsenate are described. The algae incorporate arsenic rather efficiently and form a lipid-soluble organic arsenic compound. T. chuii has been successfully mass cultured in a medium containing 10 ppm arsenic as arsenate. Daphnia magna was cultured in a medium containing 74As-labeled H3AsO4 and 1 ppm Na2HAsO4 expressed as arsenic. The arsenic metabolites were extracted with a chloroform-methanol solution and isolated by using column and thin-layer chromatography. TLC analysis of the metabolites revealed the presence of a 74As-containing product which migrated with phosphatidylethanolamine. This product was hydrolyzed with the phospholipases A, C, and D. The experimental results are not inconsistent with the presence of an arsenocholine moiety in the lipids. Arsenocholine, arsenobetaine, and acetylarsenocholine have been synthesized and will serve as reference substances in the chromatography experiments. The preparation of arsenocholine-containing lipids is in progress. Irgolic K J KJ Woolson E A EA Stockton R A RA Newman R D RD Bottino N R NR Zingaro R A RA Kearney P C PC Pyles R A RA Maeda S S McShane W J WJ Cox E R ER eng Journal Article

UNITED STATES Environ Health Perspect 0330411 0 Arsenates 0 Arsenicals 0 Lipids 7440-38-2 Arsenic IM Algae metabolism Animals Arsenates metabolism Arsenic metabolism Arsenicals analysis Daphnia metabolism Lipids metabolism Marine Biology Methods Support, U.S. Gov't, P.H.S. 905850 1977 11 25 1977 11 25 2003 11 14

0094-7733 32 1977 Abnormal synaptic connectivity following UV-induced cell death during Daphnia development. 293-309 Macagno E R ER eng Journal Article

UNITED STATES Soc Gen Physiol Ser 0433431 IM Animals Cell Survival Daphnia anatomy & histology growth & development Neurons ultrastructure Photoreceptors growth & development radiation effects ultrastructure Support, U.S. Gov't, P.H.S. Synapses ultrastructure Ultraviolet Rays 922608 1978 01 27 1978 01 27 2003 11 14

0008-4166 23 11 1977 Nov Occurrence in Monia rectirostris (Cladocera: Daphnidae) of a parasite morphologically similar to Pasteuria ramosa (Metchnikoff, 1888). 1573-9 Pasteuria ramosa, a bacterial parasite of the cladocerans Daphnia pulex and D. magna, was described by Metchnikoff in 1888. Because the organism could not be cultured, it was subsequently lost. However, the original illustrations and descriptions of the life cycle of P. ramosa are similar to a bacterial spore parasite of nematodes (BSPN) that was recently described in Meloidogyne. As a result of these similarities, a search for P. ramosa was initiated. An organism resembling P. ramosa was found infecting Moina rectirostris, a member of the Daphnidae and a new host for the bacterium. Photomicrographs and scanning electron micrographs of the parasite indicated that the morphology of this organism was similar to the descriptions and illustrations presented by Metchnikoff. Morphological features of this newly described parasite also indicated that the bacterium is similar to the BSPN. Sayre R M RM Wergin W P WP Davis R E RE eng Journal Article

CANADA Can J Microbiol 0372707 IM Animals Bacteria isolation & purification ultrastructure Crustacea microbiology parasitology Spores, Bacterial isolation & purification ultrastructure 597623 1978 03 21 1978 03 21 2003 11 14

0007-4861 18 6 1977 Dec Evaluation of a cell culture assay for determination of water quality of oil-refinery effluents. 683-90 Richardson D D Dorris T C TC Burks S S Browne R H RH Higgins M L ML Leach F R FR eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Cresols 0 Industrial Waste IM Animals Biological Assay methods Cells, Cultured drug effects Cresols pharmacology Daphnia drug effects Industrial Waste analysis Mice Petroleum Support, U.S. Gov't, Non-P.H.S. Time Factors Water Supply analysis 599977 1978 03 10 1978 03 10 2003 11 14

0025-6978 27 4 1977 Nov Daphnia pulex. 179-82 Lawson D F DF eng Journal Article

ENGLAND Med Biol Illus 0400710 IM Animals Daphnia growth & development Female Male Metamorphosis, Biological Photography methods 638272 1978 06 12 1978 06 12 2003 11 14

0007-4861 19 2 1978 Feb Metabolic alteration and excretion of anthracene by Daphnia pulex. 147-55 Herbes S E SE Risi G F GF eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Anthracenes IM Animals Anthracenes metabolism Daphnia metabolism Kinetics 98320 1978 10 27 1978 10 27 2003 11 14

0013-9351 15 3 1978 Jun Cadmium toxicity in planktonic organisms of a freshwater food web. 357-67 Fennikoh K B KB Hirshfield H I HI Kneip T J TJ eng Journal Article

UNITED STATES Environ Res 0147621 7440-43-9 Cadmium IM Animals Astacoidea drug effects Cadmium toxicity Chlamydomonas drug effects Comparative Study Daphnia drug effects Euglena gracilis drug effects Goldfish Invertebrates drug effects Lethal Dose 50 Species Specificity Support, U.S. Gov't, Non-P.H.S. Support, U.S. Gov't, P.H.S. Turbellaria drug effects 356015 1978 10 18 1978 10 18 2003 11 14

0370-0747 8 1 1978 [Resistance of yeast cells to plastics and elastics] 21-6 For the investigation of plastics and elastics several sensitive biological methods are in use. In the Pharmacopeia of GDR, 2nd edition, a safety-test on isolated frogheart is prescribed for plastics and a safety-test on daphnia magna for elastics. Ionescu-Stoian had recommended a test using saccharomyces cerevisiae. We found a good conformity of the result given by this test with the results of the daphnia-test. On the other hand, the saccharomyces cerevisiae-test is much more sensitive than the test with isolated frogheart. Gerstenberger G G Jacker H J HJ Dressel H H ger Journal Article Beitrag zur Verträglichkeitsprüfung von Gegenständen aus Plasten und Elasten unter Verwendung von Hefezellen.

POLAND Polim Med 7509477 0 Plastics 0 Silicone Elastomers IM Animals Anura English Abstract Heart drug effects In Vitro Plastics toxicity Saccharomyces cerevisiae drug effects Silicone Elastomers toxicity 688341 1978 11 29 1978 11 29 2003 11 14

0302-766X 190 3 1978 Jul 10 Neuronal connectivity patterns in the compound eyes of Artemia salina and Daphnia magna (Crustacea: Branchiopoda). 435-7 The neuronal types and patterns in the visual system of the species Artemia salina and Daphina magna have been studied with the Golgi method and electron microscopy. The lamina contains five classes of neurons: photoreceptor axons, monopolar, centrifugal, tangential and amacrine neurons. The terminals of the receptor axons are distributed in two (A. salina) or three (D. magna) layers. The dilated terminals have an extensive and wide array of fine branches. One axon from each ommatidium bypasses the lamina and terminates in the medula in A. salina. A. salina has four types of monopolar neurons, two of which are stratified, whereas in D. magna only two types are found, one of which is bistratified. Tangential T-neurons connect the lamina with the protocerebrum. D. magna has in addition one tangential T-neuron connecting both the lamina and the medulla with the protocerebrum. In both species monopolar-type centrifugal neurons connect the medulla and the lamina, whereas that of A. salina has a wide laminar distribution. Both species also have amacrine cells in the lamina. The medulla contains, besides those shared with the lamina, transmedullary neurons (two types in A. salina), amacrine cells and neurons originating in the protocerebrum. "Cartridge"-type synaptic compartments are lacking in the investigated species, although a periodic arrangement is discernible in the distal portion of the lamina of A. salina. The receptors from three types of specialized contacts in Artemia, one of which involves a dyad. D. magna has only one-to-one synapses. Neurosecretory fibres are absent in A. salina. Nässel D R DR Elofsson R R Odselius R R eng Journal Article

UNITED STATES Cell Tissue Res 0417625 IM Animals Artemia anatomy & histology Axons ultrastructure Daphnia anatomy & histology Eye innervation Models, Neurological Nerve Endings ultrastructure Neurons cytology ultrastructure 567835 1978 12 02 1978 12 02 2003 11 14

0035-7715 29 4 1978 [Effect of popular xylamite on aqueous organisms] 427-32 Luczak J J Rybak M M pol Journal Article Wpływ xylamitu popularnego na organizmy wodne.

POLAND Rocz Panstw Zakl Hig 0414756 0 Water Pollutants IM Animals Daphnia drug effects English Abstract Fishes Water Pollutants toxicity 708928 1979 01 26 1979 01 26 2003 11 14

0007-4861 20 3 1978 Sep Field verification of cadmium toxicity to laboratory Daphnia populations. 387-93 Marshall J S JS eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 7440-43-9 Cadmium IM Animals Cadmium toxicity Daphnia drug effects growth & development Great Lakes Region Support, U.S. Gov't, Non-P.H.S. Time Factors 152574 1979 01 26 1979 01 26 2003 11 14

0323-4398 24 3 1978 [Professional asthma owing to Daphnia-allergy (author's transl)] 191-3 Two workers in a fish food store showed a professional asthma bronchiale against Daphnia. The diagnosis was proofed by typical anamnesis, scratch test, skin test and inhalative provocation test. Meister W W ger Journal Article Berufsasthma infolge Daphnienallergie1).

GERMANY, EAST Allerg Immunol (Leipz) 0314702 0 Allergens IM Adult Allergens Asthma etiology Daphnia English Abstract Female Human Male Middle Aged Occupational Diseases etiology Skin Tests 741466 1979 04 25 1979 04 25 2003 11 14

0249-6402 1 1 1978 Jan [Toxicologic study of a fluorescent tracer: rhodamine B] 23-6 The use of the rhodamine B as fluorescent tracer in hydrology ask the question of its possible toxic effects in the environment. This study aspire to specify and to complete the results of the former works by the successive examinations of the activity of the rhodamine B in regard to the "daphnies test", its DL50 on the rat and on the mouse, and its cutaneous tolerance. The obtained results confirm the former remarks and express that the solutions of the rhodamine B show any more immediate risks as soon as they appear no more coloured (higher dilutions 1.10(-7)). However it remains to evaluate its long-term carcenogenic activity. Rochat J J Demenge P P Rerat J C JC fre Journal Article Contribution à l'étude toxicologique d'un traceur fluorescent: la Rhodamine B.

FRANCE Toxicol Eur Res 7901212 0 Rhodamines 0 Xanthenes IM Animals Daphnia drug effects English Abstract Female Guinea Pigs Lethal Dose 50 Mice Rats Rhodamines toxicity Skin drug effects Species Specificity Xanthenes toxicity 444737 1979 09 01 1979 09 01 2003 11 14

0007-4861 21 4-5 1979 Mar Cadmium toxicity to laboratory and field populations of Daphnia galeata mendotae. 453-7 Marshall J S JS eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 7440-43-9 Cadmium IM Animals Cadmium toxicity Daphnia drug effects Support, U.S. Gov't, Non-P.H.S. 444759 1979 09 01 1979 09 01 2003 11 14

0007-4861 21 4-5 1979 Mar Acute toxicity of some experimental road surfacing compounds to Daphnia pulex. 618-23 Bailey G C GC eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Naphthalenes 0 Silicone Elastomers 71-23-8 1-Propanol IM 1-Propanol toxicity Animals Construction Materials toxicity Daphnia drug effects Lethal Dose 50 Naphthalenes toxicity Silicone Elastomers toxicity 451432 1979 08 16 1979 08 16 2003 11 14

0035-7715 30 2 1979 [Locomotor activity of aqueous organisms as a measuring technic of water pollution] 185-9 Luczak J J Rybak M M pol Journal Article Próba zastosowania pomiarów aktywności lokomotorycznej organizmów wodnych jako wskaźnika zanieczyszczenia wód.

POLAND Rocz Panstw Zakl Hig 0414756 IM Animals Daphnia physiology English Abstract Locomotion Methods Water Pollution, Chemical analysis 465763 1979 10 24 1979 10 24 2003 11 14

0007-4861 21 6 1979 Apr Oxygen consumption in Daphnia pulex exposed to 2,4-D or 2,4,5-T. 822-5 Sigmon C C eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 93-76-5 2,4,5-Trichlorophenoxyacetic Acid 94-75-7 2,4-Dichlorophenoxyacetic Acid IM 2,4,5-Trichlorophenoxyacetic Acid pharmacology 2,4-Dichlorophenoxyacetic Acid pharmacology Animals Daphnia drug effects metabolism Depression, Chemical Oxygen Consumption drug effects Support, U.S. Gov't, Non-P.H.S. Temperature 88975 1979 10 24 1979 10 24 2003 11 14

0007-4861 21 6 1979 Apr Acute toxicity of dechlorinated DDT, chlordane and lindane to bluegill (Lepomis macrochirus) and Daphnia magna. 849-54 Randall W F WF Dennis W H WH Warner M C MC eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 12789-03-6 Chlordan 50-29-3 DDT 58-89-9 Lindane IM Animals Chlordan toxicity DDT analogs & derivatives toxicity Daphnia drug effects Fishes physiology Lindane toxicity 313826 1979 10 17 1979 10 17 2003 11 14

0007-4861 22 1-2 1979 May Effects of the triazine herbicide cyanatryn on aquatic animals. 135-42 Scorgie H R HR Cooke A S AS eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Herbicides, Triazine 0 Water Pollutants 0 Water Pollutants, Chemical IM Animals Anura Daphnia metabolism Herbicides, Triazine toxicity Lymnaea metabolism Rana temporaria metabolism Time Factors Water Pollutants toxicity Water Pollutants, Chemical toxicity 486786 1979 12 27 1979 12 27 2003 11 14

0007-4861 22 6 1979 Aug Bioaccumulation and bioamplification of mercury compounds in a second level consumer, Gambusia affinis--temperature effects. 813-8 Boudou A A Delarche A A Ribeyre F F Marty R R eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Methylmercury Compounds 7439-97-6 Mercury IM Animals Chlorella metabolism Daphnia metabolism Fishes metabolism Fresh Water Mercury metabolism toxicity Methylmercury Compounds metabolism Temperature Time Factors 497420 1980 01 24 1980 01 24 2003 11 14

0007-4861 23 1-2 1979 Sep Sulfotepp, a toxic impurity in formulations of diazinon. 158-64 Meier E P EP Dennis W H WH Rosencrance A B AB Randall W F WF Cooper W J WJ Warner M C MC eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Insecticides, Organothiophosphate 333-41-5 Diazinon IM Animals Chemistry Daphnia drug effects Diazinon toxicity Drug Contamination Fishes physiology Insecticides, Organothiophosphate toxicity Salmon physiology 497445 1980 01 24 1980 01 24 2003 11 14

0007-4861 23 1-2 1979 Sep Bioaccumulation of carbazoles: a potential effluent from synthetic fuels. 73-8 Southworth G R GR Beauchamp J J JJ Schmieder P K PK eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Carbazoles 0 Industrial Waste IM Animals Carbazoles metabolism Daphnia metabolism Half-Life Industrial Waste Petroleum Support, U.S. Gov't, Non-P.H.S. Time Factors 115524 1980 01 24 1980 01 24 2003 11 14

0007-4861 23 4-5 1979 Nov Recovery of 14C-labelled polychlorinated biphenyls (PCB) in fish tissue using a combusion and a solubilization method of sample preparation for scintillation analysis. 597-600 Niimi A J AJ Burnison G A GA eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Carbon Radioisotopes 0 Polychlorinated Biphenyls IM Animals Carbon Radioisotopes analysis Chlorella Daphnia Fishes metabolism Heat Methods Oxidation-Reduction Polychlorinated Biphenyls analysis Solubility Trout 501532 1980 01 19 1980 01 19 2003 11 14

0022-3549 68 9 1979 Sep Simple analogs of the toxin callicarpone. 1116-20 Callicarpone, a component 10 times as toxic to fish as rotenone, has been isolated from the leaves of Callicarpa candicans. It is reasonable to assume that callicarpone will act as an insecticidal agent as does rotenone. Therefore, the structure-activity relationship of callicarpone was examined by synthesizing a series of compounds having certain of its structural features. Those compounds were tested for insecticidal and antimicrobial activities. A study of synthetic analogs elucidated the functional group chemistry of callicarpone so that a synthesis might be undertaken. Piperitone oxide showed approximately 1/100th the activity of rotenone against Daphnia magna. 1-(alpha-Hydroxyisopropyl)-3-oxocyclohexene oxide showed activity against myobacterium while 2,3,4,6,7,8-hexahydronaphthalene-1,4-dione showed inhibitory activity against the mycobacterium and two yeasts. McChesney J D JD Kabra P M PM Fraher P P eng Journal Article

UNITED STATES J Pharm Sci 2985195R 0 Anti-Infective Agents 0 Toxins IM Animals Anti-Infective Agents Daphnia drug effects Structure-Activity Relationship Time Factors Toxins chemical synthesis toxicity 116347 1980 01 28 1980 01 28 2003 11 14

0067-6489 23 1978 [Effect of foschlor (0,0-dimethylphosphonate-2,2,2-trichlor-1-hydroxyethyl) on the water organisms] 149-58 Badyda A A Krasowska A A Lengiewicz I I Próba D D pol Journal Article Wpływ foschloru (0,0-dwumetylofosfonian 2,2,2-trójchloro-1-hydroksyetyl) na organizmy wodne.

POLAND Rocz Akad Med Im Juliana Marchlewskiego Bialymst 7501229 0 Water Pollutants 0 Water Pollutants, Chemical 1406-65-1 Chlorophyll 52-68-6 Trichlorfon IM Algae drug effects Animals Chlorophyll biosynthesis Daphnia drug effects English Abstract Mortality Trichlorfon toxicity Water Pollutants toxicity Water Pollutants, Chemical toxicity 116352 1980 01 28 1980 01 28 2003 11 14

0067-6489 23 1978 [Effect of thiodan on various physiological processes in Daphnia magna (Crustacea)] 27-34 Krasowska A A Próba D D pol Journal Article Wpływ thiodanu na niektóre procesy fizjologiczne u Daphnia magna (Crustacea).

POLAND Rocz Akad Med Im Juliana Marchlewskiego Bialymst 7501229 115-29-7 Endosulfan IM Animals Daphnia drug effects physiology Endosulfan pharmacology English Abstract Female Fertility drug effects Gastrointestinal Motility drug effects Heart Rate drug effects Litter Size drug effects Mortality Pregnancy 507937 1980 01 28 1980 01 28 2003 11 14

0090-4341 8 3 1979 Toxicity of the herbicide glyphosphate and several of its formulations to fish and aquatic invertebrates. 269-78 Folmar L C LC Sanders H O HO Julin A M AM eng Journal Article

UNITED STATES Arch Environ Contam Toxicol 0357245 0 Herbicides 0 Surface-Active Agents IM Animals Crustacea drug effects Daphnia drug effects Diptera drug effects Fishes physiology Herbicides toxicity Surface-Active Agents toxicity 519041 1980 03 17 1980 03 17 2003 11 14

0007-4861 23 3 1979 Oct An evaluation of the acute toxicity to aquatic biota of a coal conversion effluent and its major components. 349-56 Parkhurst B R BR Bradshaw A S AS Forte J L JL Wright G P GP eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Industrial Waste IM Animals Coal Daphnia physiology Industrial Waste analysis toxicity Lethal Dose 50 Support, U.S. Gov't, Non-P.H.S. Water Pollution 391303 1980 03 17 1980 03 17 2003 11 14

0007-4861 23 6 1979 Dec Utilization of bacterial colony counters to count early instar water fleas (Daphnia magna). 837-9 LeBlanc G A GA eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 IM Animals Bacteriological Techniques instrumentation Daphnia physiology 7356137 1980 04 17 1980 04 17 2003 11 14

0003-2697 101 1 1980 Jan 1 Reverse-phase liquid chromatographic analysis of amino acids after reaction with o-phthalaldehyde. 61-5 Gardner W S WS Miller W H WH 3rd eng Journal Article

UNITED STATES Anal Biochem 0370535 0 Amino Acids 0 Indicators and Reagents 643-79-8 o-Phthalaldehyde IM Amino Acids analysis Animals Chromatography, High Pressure Liquid methods Daphnia analysis Indicators and Reagents o-Phthalaldehyde 7357098 1980 05 14 1980 05 14 2003 11 14

0007-4861 24 1 1980 Jan Selenium toxicity to Daphnia magna, Hyallela azteca, and the fathead minnow in hard water. 102-7 Halter M T MT Adams W J WJ Johnson H E HE eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 7782-49-2 Selenium IM Animals Crustacea drug effects Daphnia drug effects Fishes physiology Fresh Water Lethal Dose 50 Selenium toxicity Time Factors 7357104 1980 05 14 1980 05 14 2003 11 14

0007-4861 24 1 1980 Jan Behavior of trifluralin in aquatic model ecosystems. 134-41 Yockim R S RS Isensee A R AR Walker E A EA eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Toluidines 1582-09-8 Trifluralin IM Algae metabolism Animals Daphnia metabolism Fishes metabolism Models, Theoretical Snails metabolism Support, U.S. Gov't, Non-P.H.S. Time Factors Toluidines toxicity Trifluralin metabolism toxicity 583409 1980 05 14 1980 05 14 2003 11 14

0147-6513 3 4 1979 Dec Interest of the experimental trophic chains as ecotoxicological models for the study of the ecosystem contaminations. 411-27 Ribeyre F F Boudou A A Delarche A A eng Journal Article

UNITED STATES Ecotoxicol Environ Saf 7805381 0 Environmental Pollutants 7439-97-6 Mercury IM Animals Chlorella metabolism Cyprinodontiformes metabolism Daphnia metabolism Ecology Environmental Pollutants analysis Environmental Pollution Food Food Contamination Mercury toxicity Models, Biological Salmon metabolism Temperature Time Factors Tissue Distribution 535726 1980 05 23 1980 05 23 2003 11 14

0016-6731 92 3 1979 Jul Enzyme polymorphism and cyclic parthenogenesis in Daphnia magna. I. Selection and clonal diversity. 953-70 Genotype frequencies and fecundities were recorded over a period of two years for three polymorphic enzyme loci (Est, Mdh and Got) in a parthenogenetic natural population of Daphnia magna Straus (Crustacea: Cladocera). There was a large excess of heterozygotes at each locus, and some nonrandom association between loci, although 29 different three-locus genotypes were detected. There were small but significant changes in genotype frequencies that did not follow any clear seasonal cycles or overall trends, and the genotypes often differed significantly in fecundity, although the direction of the difference was not constant. These fitness differences were probably not attributable to the specific loci studied.--Models of balancing selection are of two types: segregation-balanced (e.g., heterosis) and competition-balanced (e.g., frequency dependence). Only the latter type can stabilize diversity in a clonal population. The observed selection was not heterotic, but it is not certain that it was stabilizing either. Clonal competition did not lead to victory by a single, fittest clone; genotypic diversity remained high. Young J P JP eng Journal Article

UNITED STATES Genetics 0374636 0 Enzymes IM Animals Daphnia genetics Enzymes genetics Female Gene Frequency Heterozygote Homozygote Parthenogenesis Time Factors Variation (Genetics) 535727 1980 05 23 1980 05 23 2003 11 14

0016-6731 92 3 1979 Jul Enzyme polymorphism and cyclic parthenogenesis in Daphnia magna. II. Heterosis following sexual reproduction. 971-82 Cyclical parthenogenesis exaggerates the force of selection relative to recombination and will therefore enhance interlocus effects. Observations of electrophoretic variation in a natural population of Daphnia magna Straus (Crustacea: Cladocera) are interpreted in this light. Sexual reproduction led to Hardy-Weinberg equilibrium, but heterozygote excesses rapidly developed at each of three observed loci during subsequent parthenogenesis. Homozygote fecundity was often lower than that of heterozygotes; this may have been the cause of some of the observed frequency changes. The superior fitness of the enzyme heterozygotes does not imply that selection was necessarily acting on the enzyme loci thermselves, since apparent heterosis is the expected result of linkage disequilibrium. Young J P JP eng Journal Article

UNITED STATES Genetics 0374636 0 Enzymes IM Animals Daphnia genetics Enzymes genetics Female Gene Frequency Heterozygote Male Parthenogenesis Sex Behavior, Animal physiology Variation (Genetics) 539835 1980 05 23 1980 05 23 2003 11 14

0090-4341 8 5 1979 Photolysis of heptachlor and cis-chlordane and toxicity of their photoisomers to animals. 509-18 Podowski A A AA Banerjee B C BC Feroz M M Dudek M A MA Willey R L RL Khan M A MA eng Journal Article

UNITED STATES Arch Environ Contam Toxicol 0357245 12789-03-6 Chlordan 76-44-8 Heptachlor IM Animals Chlordan toxicity Daphnia Fishes Heptachlor toxicity Isomerism Male Photolysis Plants Rats Support, U.S. Gov't, P.H.S. 231941 1980 05 23 1980 05 23 2003 11 14

0090-4341 8 5 1979 Acute toxicity studies of surfactants to Daphnia magna and Daphnia pulex. 599-612 Maki A W AW Bishop W E WE eng Journal Article

UNITED STATES Arch Environ Contam Toxicol 0357245 0 Alkanesulfonates 0 Surface-Active Agents IM Alkanesulfonates toxicity Animals Comparative Study Daphnia drug effects Species Specificity Structure-Activity Relationship Surface-Active Agents toxicity 7362904 1980 06 27 1980 06 27 2003 11 14

0007-4861 24 2 1980 Feb Evaluation of in vitro enzyme inhibition for screening petroleum effluents. 244-50 Armant D R DR Buikema A L AL Jr Rutherford C L CL Cairns J J Jr eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Industrial Waste EC 1.1.1.49 Glucosephosphate Dehydrogenase IM Animals Daphnia Drug Interactions Glucosephosphate Dehydrogenase antagonists & inhibitors Goldfish Industrial Waste toxicity Lethal Dose 50 Petroleum Time Factors 540553 1980 06 16 1980 06 16 2001 11 14

0147-6513 3 2 1979 Jun New challenges to ecotoxicology. 116-21 Smeets J J eng Journal Article

UNITED STATES Ecotoxicol Environ Saf 7805381 IM S Biodegradation Chemistry, Physical Daphnia Ecology trends Legislation, Drug trends Plants Toxicology trends United States 80156510 7369784 1980 06 25 1980 06 25 2003 11 14

0090-4341 9 1 1980 Uptake, depuration, and distribution of selenium in Daphnia and its effects on survival and ultrastructure. 23-40 Selenium is an important essential nutritional trace element which has been shown to provide protection against certain other metal poisoning. However, it is a suspected carcinogen and teratogen. The uptake, depuration, and toxicity of selenium in Daphnia pulex have been examined. The LC50 at 48 and 96 hr for juvenile animals is 0.6 mg/L and 0.1 mg/L respectively, and for adults it is 1.3 mg/L and 0.5 mg/L respectively. Uptake in adult unfed animals is rapid, reaching a maximum at about 12 hr, but depuration is slow. In fed animals, uptake is slower, reaching a maximum at 96 hr, but initial depuration is followed by a slower prolonged loss. Localization in cells is primarily in the cytoplasmic compartment although evidence is presented which suggests nucleolar localization. Ultrastructural damage is detected by 16 hr after exposure and is initially confined to the mitochondria. Dense deposits accumulate in the mitochondrial matrices. The nature of these deposits is unknown; they may represent a calcium- or phosphate-selenium complex. With time, the mitochondria degenerate. It is clear that relatively low concentrations of selenium are toxic to these aquatic organisms and render them incapable of survival in the natural environment. Concentrations higher than those lethal to Daphnia can be expected, at least in local areas, from the burning or conversion of fossil fuels. Schultz T W TW Freeman S R SR Dumont J N JN eng Journal Article

UNITED STATES Arch Environ Contam Toxicol 0357245 7782-49-2 Selenium IM Animals Autoradiography Daphnia drug effects metabolism ultrastructure Lethal Dose 50 Selenium metabolism toxicity Support, U.S. Gov't, P.H.S. Tissue Distribution 7369786 1980 06 25 1980 06 25 2003 11 14

0090-4341 9 1 1980 Comparative toxicity of arsenic compounds and their accumulation in invertebrates and fish. 53-63 The toxicity of arsenic III, arsenic V, sodium dimethyl arsenate, and disodium methyl arsenate to stoneflies, snails, amphipods, and trout, and the bioaccumulation of these compounds were studied during a 28-day flow-through test. Daphnia magna were exposed for 21 days in static tests to determine life-cycle effects. All animals were exposed to concentrations of approximately 100 and 1000 microgram/L (as arsenic) of each of the compounds. Arsenic III, the most toxic compound, caused a significant reduction in the survival of amphipods at 1000 microgram As/L after seven days. None of the compounds significantly affected the survival of other test species after 28 days or reduced young production in Daphnia after 14 days of exposure. The concentration of accumulated arsenic in stoneflies, snails, and Daphnia was as much as 131, 99, and 219 times greater than the water concentration, whereas amphipods and rainbow trout contained arsenic residues similar to the controls. Residues in stoneflies, snails, and Daphnia exposed to 1000 microgram As/L were higher than those in animals exposed to 100 microgram As/L, but appeared to reach a steady state after 14 days. Total arsenic accumulation was greatest in organisms exposed to inorganic arsenic, particularly at 100 microgram/L. Spehar R L RL Fiandt J T JT Anderson R L RL DeFoe D L DL eng Journal Article

UNITED STATES Arch Environ Contam Toxicol 0357245 7440-38-2 Arsenic IM Animals Arsenic metabolism toxicity Comparative Study Daphnia metabolism Fishes metabolism Invertebrates metabolism Snails metabolism Time Factors 7379717 1980 08 25 1980 08 25 2003 11 14

0147-6513 4 1 1980 Mar Experiences with test systems using Daphnia magna. 21-5 Müller H G HG eng Journal Article

UNITED STATES Ecotoxicol Environ Saf 7805381 0 Chromates 0 Water Pollutants, Chemical IM Animals Chromates toxicity Daphnia drug effects growth & development physiology Time Factors Toxicology methods Water Pollutants, Chemical toxicity Water Supply standards 546945 1980 08 25 1980 08 25 2003 11 14

0021-8561 27 5 1979 Sep-Oct Toxicity and fate of nine toxaphene fractions in an aquatic model ecosystem. 1041-6 Isensee A R AR Jones G E GE McCann J A JA Pitcher F G FG eng Journal Article

UNITED STATES J Agric Food Chem 0374755 0 Environmental Pollutants 0 Insecticides, Organochlorine 8001-35-2 Toxaphene IM Algae metabolism Animals Daphnia metabolism Environmental Pollutants metabolism toxicity Fishes metabolism Insecticides, Organochlorine toxicity Models, Biological Snails metabolism Toxaphene metabolism toxicity 7389634 1980 09 23 1980 09 23 2003 11 14

0147-6513 4 2 1980 Jun Factors determining the bioaccumulation potential of pesticides in the individual compartments of aquatic food chains. 134-57 Ellgehausen H H Guth J A JA Esser H O HO eng Journal Article

UNITED STATES Ecotoxicol Environ Saf 7805381 0 Pesticide Residues IM Algae, Green drug effects Animals Biodegradation Daphnia drug effects Ecology Fishes Pesticide Residues adverse effects 121548 1980 10 27 1980 10 27 2003 11 14

0098-2164 6 4 1979 Jul-Aug Reaction of freshwater phyto- and zooplankton to pesticides. 487-93 The reaction of plankton to the toxic effect of pesticides is considered at four levels: the cell, the organism, the population, and the biocenosis. The basis for the methodological approach to evaluation of response at the cell level was the principle of phase reactions. Depending on concentration, the pesticides may either suppress or stimulate the plankton organisms. Temperature may be decisive intoxic effects (pesticides are effective in a range of 15 to 25 degrees C). Most pesticides having algacidal activity are effective in a range of concentrations of 1-10 mg/liter. Phytoplankton as a whole has a high buffer capacity with respect to pesticides. Changes in ratios of basic components of phytoplankton effected by pesticides most often lead to a change of the dominant. Analogical changes are characteristic also for zooplankton; pesticides lead to the elimination of water fleas from its composition. The stimulating effect of a low concentration of pesticides, changes in the functional activity of the components of bacterial plankton, and changes coupled with this in biogeochemical cycles of nitrogen and phosphorous as well as elimination of water fleas from the plankton promotes the development of "secondary" eutrophication, that is, an increase in the biomass of the phytoplankton. Braginskii L P LP Breskaravainaya V D VD Shcherban' E P EP eng Journal Article

UNITED STATES Biol Bull Acad Sci USSR 7513560 0 Herbicides, Urea 0 Pesticides 330-54-1 Diuron 330-55-2 Linuron IM Algae drug effects Animals Comparative Study Cyanobacteria drug effects Daphnia drug effects Diuron pharmacology Eutrophication drug effects Herbicides, Urea pharmacology Linuron pharmacology Pesticides administration & dosage pharmacology toxicity Phytoplankton drug effects Plankton drug effects Temperature Zooplankton drug effects 7397431 1980 10 21 1980 10 21 2003 11 14

0007-4861 24 6 1980 Jun Effects of sublethal concentrations of selenium on metabolism and filtering rate of Daphnia pulex. 929-35 Reading J T JT Buikema A L AL Jr eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 7782-49-2 Selenium IM Animals Daphnia drug effects metabolism Oxygen Consumption drug effects Selenium pharmacology 7408820 1980 11 24 1980 11 24 2003 11 14

0013-9351 22 2 1980 Aug Morphological and ultrastructural effects of sublethal cadmium poisoning on Daphnia. 277-84 Griffiths P R PR eng Journal Article

UNITED STATES Environ Res 0147621 7440-70-2 Calcium IM Animals Cadmium Poisoning pathology Calcium metabolism Cell Membrane metabolism Daphnia drug effects Electron Probe Microanalysis Intestines drug effects Microscopy Microscopy, Electron Microscopy, Electron, Scanning Microvilli metabolism Mitochondria metabolism 7423475 1980 12 16 1980 12 16 2003 11 14

0040-7453 105 18 1980 Sep 15 [Bird mortality and monitoring the environment (author's transl)] 787-91 Birds are useful parameters in studying toxicological contamination of the environment. Birds can be heard and seen, breeding results and feeding patterns being recorded on a rather extensive scale in the Netherlands. Since 1974, a working party was constituted to study normal and abnormal death of birds. This group consists of members of ornithological and veterinary institutes as well as local field workers, bird revalidation centres and bird preservation and protection groups. In 1979, approximately 2,000 birds were available for post-mortem and bacteriological, virological and toxicological studies. The cases of poisoning were classified into acute and chronic, accidental and crop-protecting effects. In the Laboratory of the Central Veterinary Institute, Poultry Department, the birds suspected of poisoning are screened by a biological-toxicological standard method using Lebistes and Daphnia. Pseudo-poisoning is caused in nature by Pasteurellosis, accidents, etc. Investigations are restricted by predation, the likelihood of finding of dead birds and retention of dead birds of prey for taxidermy. Acute poisoning in the Netherlands is mostly associated with protection of crops, nuisance caused by pigeons and other birds in gardens. Some cases of poisoning are due to quarrels between neighbours and people who poison game-birds out of revenge. Chronic poisoning is caused by metals such as lead pellets from cartridges. Chronic and acute poisoning continue to occur as a result of illegal use of prohibited insecticides. Smit T T dut Journal Article Vogelsterfte en milieubewaking.

NETHERLANDS Tijdschr Diergeneeskd 0031550 IM Animals Bird Diseases mortality Birds English Abstract Environmental Pollution Netherlands Poisoning mortality veterinary 7426761 1981 01 16 1981 01 16 2003 11 14

0007-4861 25 2 1980 Aug Acute toxicity of cyanate to Daphnia magna. 194-6 Dauchy J W JW Waller W T WT Piwoni M D MD eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Cyanates 0 Cyanides IM Animals Cyanates toxicity Cyanides toxicity Daphnia drug effects Lethal Dose 50 7426775 1981 01 16 1981 01 16 2003 11 14

0007-4861 25 2 1980 Aug Effects of acid precipitation on Daphnia magna. 298-304 Parent S S Cheetham R D RD eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Acids 7782-44-7 Oxygen IM Acids toxicity Aging Animals Daphnia drug effects Fresh Water analysis Hydrogen-Ion Concentration Oxygen analysis Time Factors 7426783 1981 01 29 1981 01 29 2003 11 14

0007-4861 25 3 1980 Sep Effects of Roundup herbicide on populations of Daphnia magna in a forest pond. 353-7 Hildebrand L D LD Sullivan D S DS Sullivan T P TP eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Herbicides 1071-83-6 glyphosate 56-40-6 Glycine IM Animals Daphnia drug effects Fresh Water Glycine analogs & derivatives toxicity Herbicides toxicity Support, Non-U.S. Gov't Time Factors 7426788 1981 01 29 1981 01 29 2003 11 14

0007-4861 25 3 1980 Sep Relationship of per cent mortality of four species of aquatic biota from 96-hour sediment bioassays of five Lake Michigan harbors and elutriate chemistry of the sediments. 394-9 Hoke R A RA Prater B L BL eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Water Pollutants 0 Water Pollutants, Chemical IM Animals Arthropods physiology Chemistry Daphnia physiology Great Lakes Region Support, U.S. Gov't, Non-P.H.S. Water Pollutants toxicity Water Pollutants, Chemical toxicity 7436544 1981 01 29 1981 01 29 2003 11 14

0090-4341 9 5 1980 Toxicity of underground coal gasification condenser water and selected constituents to aquatic biota. 543-55 DeGraeve G M GM Overcast R L RL Bergman H L HL eng Journal Article

UNITED STATES Arch Environ Contam Toxicol 0357245 0 Industrial Waste IM Animals Coal Daphnia drug effects Fishes physiology Fossil Fuels Industrial Waste toxicity Lethal Dose 50 Support, U.S. Gov't, Non-P.H.S. Trout physiology 7436545 1981 01 29 1981 01 29 2003 11 14

0090-4341 9 5 1980 Acute and embryo-larval toxicity of phenolic compounds to aquatic biota. 557-68 Because of the prevalence of phenolic compounds in various types of effluents, both acute and embryo-larval bioassays were performed on eight phenolic compounds with rainbow trout, fathead minnows and Daphnia pulicaria. In flow-through bioassays, the 96-hr LC50 values for rainbow trout and fathead minnows ranged from < 0.1 mg/L for hydroquinone to > 100 mg/L for resorcinol. Daphnia pulicaria was consistently the least sensitive species tested as measured in 48-hr bioassays, while fathead minnows and rainbow trout varied in their relative sensitivity to phenolics as measured in 96-hr tests. Fathead minnows were more sensitive to phenol at 25 degrees C than at 14 degrees C. In embryo-larval bioassays with phenol, fathead minnow growth was significantly reduced by 2.5 mg/L phenol, while rainbow trout growth was significantly reduced by 0.20 mg/L phenol. For both species the embryo-larval effects concentration was 1.1% of the 96-hr LC50. Another embryo-larval bioassay was attempted with p-benzoquinone, a highly toxic phenolic compound found in fossil fuel processing wastewaters, which was discontinued because the compound was rapidly degraded chemically or biologically in the headtank and aquaria. DeGraeve G M GM Geiger D L DL Meyer J S JS Bergman H L HL eng Journal Article

UNITED STATES Arch Environ Contam Toxicol 0357245 0 Phenols IM Animals Daphnia drug effects Eggs Fishes embryology physiology Fresh Water analysis Larva drug effects Lethal Dose 50 Phenols analysis toxicity Support, Non-U.S. Gov't Time Factors Trout embryology physiology 7437557 1981 02 26 1981 02 26 2003 11 14

0007-4861 25 4 1980 Oct Oxygen consumption of zooplankton as affected by laboratory and field cadmium exposures. 547-53 Kettle W D WD deNoyelles F F Jr Lei C H CH eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 7440-43-9 Cadmium IM Animals Cadmium pharmacology Daphnia metabolism Oxygen Consumption drug effects Plankton metabolism Reproduction drug effects Zooplankton metabolism 7454616 1981 03 24 1981 03 24 2003 11 14

0301-0244 32 1 1980 Jan-Feb Remarks about some pharmacopoieal safety tests for plastics and elastomers. 85-90 A survey of the biological methods for quality control of plastics and elastomers included in pharmacopoeias is given. The value of some of these methods (test for pyrogen-like substances, test for acute systemic toxicity in mice, tests on frog hearts, on Daphnia magna and on rat sperm, mode of extraction) is discussed. Jacker H J HJ eng Journal Article

POLAND Pol J Pharmacol Pharm 0366561 0 Irritants 0 Plastics 0 Pyrogens 9006-04-6 Rubber IM Animals Anura Drug Evaluation, Preclinical methods Germany, East Heart drug effects In Vitro Irritants Mice Pharmacopoeias Plastics standards toxicity Pyrogens toxicity Quality Control Rats Rubber standards toxicity Safety Skin drug effects 7459457 1981 04 21 1981 04 21 2000 12 18

0007-4861 24 5 1980 May Acute toxicity of priority pollutants to water flea (Daphnia magna). 684-91 LeBlanc G A GA eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Water Pollutants 0 Water Pollutants, Chemical IM Daphnia drug effects Human Lethal Dose 50 Support, U.S. Gov't, Non-P.H.S. Water Pollutants toxicity Water Pollutants, Chemical toxicity 6893944 1981 04 21 1981 04 21 2003 11 14

0007-4861 24 5 1980 May Model ecosystem, toxicity, and uptake evaluation of 75Se-selenite. 752-8 Nassos P A PA Coats J R JR Metcalf R L RL Brown D D DD Hansen L G LG eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 7782-49-2 Selenium 7783-00-8 Selenious Acid IM Animals Culex metabolism Cyprinodontiformes metabolism Daphnia metabolism Ecology Selenious Acid Selenium metabolism toxicity Snails metabolism 6779883 1981 04 21 1981 04 21 2003 11 14

0007-4861 25 1 1980 Jul Toxicity of a coal liquefaction product to aquatic organisms. 1-6 Giddings J M JM Parkhurst B R BR Gehrs C W CW Millemann R E RE eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Phenols 7440-44-0 Carbon IM Algae, Green drug effects Animals Carbon analysis Coal Cyanobacteria drug effects Daphnia drug effects Fuel Oils analysis toxicity Petroleum toxicity Phenols analysis Support, U.S. Gov't, Non-P.H.S. 7459473 1981 04 21 1981 04 21 2003 11 14

0007-4861 25 1 1980 Jul Acute toxicity of potassium dichromate to Daphnia magna as a function of the water quality. 113-7 Müller H G HG eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Chromates 7439-95-4 Magnesium 7440-70-2 Calcium 7732-18-5 Water 7778-50-9 Potassium Dichromate IM Animals Calcium pharmacology Chromates toxicity Daphnia drug effects Hardness Hydrogen-Ion Concentration Magnesium pharmacology Potassium Dichromate toxicity Water pharmacology 7225610 1981 07 09 1981 07 09 2003 11 14

0007-4861 26 1 1981 Jan Reproducibility of a life-cycle toxicity test with Daphnia magna. 1-8 Parkhurst B R BR Forte J L JL Wright G P GP eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Acridines 0 Water Pollutants 0 Water Pollutants, Chemical IM Acridines toxicity Animals Daphnia drug effects growth & development Female Reproduction drug effects Support, U.S. Gov't, Non-P.H.S. Water Pollutants toxicity Water Pollutants, Chemical toxicity 7225618 1981 07 09 1981 07 09 2003 11 14

0007-4861 26 1 1981 Jan A rapid and easy method to introduce Daphnia magna into test vessels. 22-3 König P P Müller H G HG eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 7732-18-5 Water IM Animals Daphnia Methods Water 7225625 1981 07 09 1981 07 09 2003 11 14

0007-4861 26 1 1981 Jan Whole organism 31P nuclear magnetic resonance spectroscopy: a potential application in aquatic toxicity evaluations. 73-6 Waller W T WT Sherry A D AD eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Water Pollutants 0 Water Pollutants, Chemical 7723-14-0 Phosphorus IM Animals Chironomidae Daphnia Magnetic Resonance Spectroscopy methods Phosphorus analysis Water Pollutants analysis Water Pollutants, Chemical analysis 7013872 1981 07 09 1981 07 09 2003 11 14

0007-4861 26 1 1981 Jan A reevaluation of the toxicity of coal conversion process waters. 9-15 Parkhurst B R BR Meyer J S JS DeGraeve G M GM Bergman H L HL eng Journal Article Review

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Phenols 0 Water Pollutants 0 Water Pollutants, Chemical 108-95-2 Phenol 7664-41-7 Ammonia IM Ammonia toxicity Animals Coal Daphnia Phenol Phenols toxicity Support, U.S. Gov't, Non-P.H.S. Trout Water Pollutants toxicity Water Pollutants, Chemical toxicity 6 7235746 1981 07 09 1981 07 09 2003 11 14

0090-4341 10 1 1981 Stressed bioassay systems for rapid screening of pesticide residues. Part I: Evaluation of bioassay systems. 9-24 Bowman M C MC Oller W L WL Cairns T T Gosnell A B AB Oliver K H KH eng Journal Article

UNITED STATES Arch Environ Contam Toxicol 0357245 0 Pesticide Residues IM Animals Arthropods metabolism Biological Assay Crustacea metabolism Culex metabolism Daphnia metabolism Decapoda (Crustacea) metabolism Pesticide Residues analysis 6113094 1981 08 27 1981 08 27 2003 11 14

0306-4492 69C 1 1981 Toxicity of eight solvent extraction chemicals and of cadmium to water fleas, Daphnia magna, rainbow trout, Salmo gairdneri, and zebrafish, Brachydanio rerio. 83-98 Dave G G Andersson K K Berglind R R Hasselrot B B eng Journal Article

ENGLAND Comp Biochem Physiol C 7503763 0 Solvents 0 Water Pollutants 0 Water Pollutants, Chemical 7440-43-9 Cadmium IM Animals Animals, Newborn physiology Cadmium toxicity Daphnia drug effects Fishes embryology physiology Larva Salmonidae physiology Solvents toxicity Support, Non-U.S. Gov't Trout physiology Water Pollutants toxicity Water Pollutants, Chemical toxicity 7242103 1981 08 10 1981 08 10 2003 11 14

0022-5193 87 3 1980 Dec 7 The cost of meiosis with alternation of sexual and asexual generations. 517-28 Charlesworth B B eng Journal Article

ENGLAND J Theor Biol 0376342 IM Animals Daphnia genetics Female Male Meiosis Models, Genetic Mutation Probability Reproduction Reproduction, Asexual 7250003 1981 09 15 1981 09 15 2003 11 14

0147-6513 5 2 1981 Jun Lead uptake and release in an experimental trophic chain. 177-93 Vighi M M eng Journal Article

UNITED STATES Ecotoxicol Environ Saf 7805381 0 Water Pollutants, Chemical 7439-92-1 Lead IM Algae metabolism Animals Daphnia metabolism Ecology Fishes metabolism Lead metabolism Time Factors Water Pollutants, Chemical analysis 7260428 1981 10 29 1981 10 29 2003 11 14

0007-4861 26 5 1981 May A Chironomus tentans bioassay for testing synthetic fuel products and effluents, with data on acridine and quinoline. 601-5 Cushman R M RM McKamey M I MI eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Acridines 0 Quinolines 0 Water Pollutants 0 Water Pollutants, Chemical IM Acridines toxicity Animals Biological Assay Chironomidae drug effects Comparative Study Daphnia drug effects Diptera drug effects Fossil Fuels toxicity Lethal Dose 50 Quinolines toxicity Support, Non-U.S. Gov't Support, U.S. Gov't, Non-P.H.S. Water Pollutants toxicity Water Pollutants, Chemical toxicity 7260429 1981 10 29 1981 10 29 2003 11 14

0007-4861 26 5 1981 May Survival and fecundity of Daphnia pulex on exposure to particulate oil. 606-12 Wong C K CK Engelhardt F R FR Strickler J R JR eng Journal Article

UNITED STATES Bull Environ Contam Toxicol 0046021 0 Emulsions 0 Water Pollutants 0 Water Pollutants, Chemical IM Animals Comparative Study Daphnia drug effects Emulsions Female Fuel Oils toxicity Male Particle Size Petroleum toxicity Reproduction drug effects Support, Non-U.S. Gov't Water Pollutants toxicity Water Pollutants, Chemical toxicity 7263276 1981 10 14 1981 10 14 2003 11 14

0018-067X 45 3 1980 Dec Enzyme variability in natural populations of Daphnia carinata king. 313-21 Fifteen populations of the cladoceran crustacean, Daphnia carinata, were examined for allozyme variation at sixteen gene loci. Individuals of this cyclic parthenogen were heterozygous at only 2.1 per cent of their loci. Large differences in gene frequencies existed among the populations. Within populations genotypic frequencies were in good agreement with Hardy-Weinberg expectations, and remained stable during annual cycles of population growth. Strong linkage disequilibrium was observed between the allelic variants at two leucine aminopeptidase loci in certain populations, suggesting that the loci are tightly linked and that populations of D. carinata are founded from few individuals. Hebert P D PD Moran C C eng Journal Article

ENGLAND Heredity 0373007 0 Enzymes 0 Isoenzymes IM Alleles Animals Daphnia genetics Enzymes genetics Gene Frequency Genes, Structural Genotype Isoenzymes genetics Variation (Genetics) 7026655 1981 12 21 1981 12 21 2003 11 14

0360-1234 16 4 1981 Effects of red-headed in sawfly, Neodiprion lecontei, nuclear polyhedrosis virus on rainbow trout, Salmo gairdneri, and Daphnia pulex. 493-509 The effects of a nuclear polyhedrosis virus (NPV) of the red-headed pine sawfly, Neodiprion lecontei, on rainbow trout, Salmo gairdneri, were investigated. The fish were exposed to this virus by intubation and topical application and no ill-effects were observed. Similarly, no ill-effects were detected in Daphnia pulex when the same NPV was added to their culture medium. The materials were lyophilized, NPV-infected sawfly larvae (normally used for insect control), lyophilized, uninfected larvae and purified, polyhedral inclusion bodies. On the basis of these laboratory tests, this virus, when disseminated as a biocontrol agent, should present no hazard to rainbow trout or to the aquatic invertebrate Daphnia pulex, two species frequently used in toxicity tests of chemical pesticides. Hicks B D BD Geraci J R JR Cunningham J C JC Arif B M BM eng Journal Article

UNITED STATES J Environ Sci Health B 7607167 IM Animals Daphnia microbiology Fish Diseases microbiology Hymenoptera microbiology Insect Control Insect Viruses pathogenicity Larva microbiology Salmonidae microbiology Trout microbiology Virus Diseases