||Influence of Age on the Relative Sensitivity of 'Hyalella azteca' to Diazinon, Alkylphenol Ethoxylates, Copper, Cadmium, and Zinc.
Collyard, S. A.;
Ankley, G. T.;
Hoke, R. A.;
||Environmental Research Lab.-Duluth, MN. ;Science Applications International Corp., Hackensack, NJ. ;AScI Corp., Duluth, MN.
Water pollution effects(Animals);
Phosphorous organic compounds;
Contaminant sensitivity test
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||Laboratories testing Hyalella azteca use a wide range of ages (or sizes) of the amphipod in their studies. The objective of this study was to investigate age-specific differences in sensitivity of the amphipod to contaminants with varying toxic modes of action. Hyalella azteca, ranging in age from <1 to 26 d, were tested in 96-h water-only exposures with the organophosphate pesticide diazinon, a mixture of alkylphenol ethoxylates (nonionic surfactants), copper sulfate, cadmium chloride, and zinc sulfate. Overall age-specific differences in sensitivity to the five test chemicals were relatively small. When differences in sensitivity were observed, trends were apparently related to the contaminant tested rather than to the age of the amphipods, i.e., no particular age class consistently was the most sensitive to the toxicants.
||Pub. in Archives of Environmental Contamination and Toxicology 26, p110-113 1994. See also PB85-205383 and PB89-207013. Prepared in cooperation with Science Applications International Corp., Hackensack, NJ. and AScI Corp., Duluth, MN.
|NTIS Title Notes
||Reprint: Influence of Age on the Relative Sensitivity of 'Hyalella azteca' to Diazinon, Alkylphenol Ethoxylates, Copper, Cadmium, and Zinc.
||68E; 68D; 57Y
||PC A01/MF A01