Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effect of Methylmercuric Chloride, Cadmium Chloride, and Lead Nitrate on Six Biochemical Factors of the Brook Trout (Salvelinus fontinalis).
Author Christensen, G. ; Hunt, E. ; Fiandt., J. ;
CORP Author Environmental Research Lab.-Duluth, Minn.
Year Published 1977
Report Number EPA/600/J-77/116;
Stock Number PB-280 785
Additional Subjects Fishes ; Trout ; Lead nitrates ; Toxicology ; Aquatic animals ; Concentration(Composition) ; Toxicity ; Bioassay ; Biochemistry ; Hematology ; Body weight ; Experimental data ; Water pollution ; Tables(Data) ; Metals ; Enzymes ; Reprints ; Salvelinus fontinalis ; Water pollution effects(Animals) ; Cadmium chlorides ; Mercury/chloro-methyl
Library Call Number Additional Info Location Last
NTIS  PB-280 785 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 9p
Brook trout were exposed to experimental water concentrations of methylmercuric chloride at concentrations from 0.01 to 2.93 micrograms of Hg/liter, to cadmium chloride from 0.06 to 6.35 micrograms of Cd/liter, and to lead nitrate from 0.90 to 474 micrograms of Pb/liter. Exposures were for 2- and 8-week periods. Fish weight and length, hemoglobin, and blood plasma sodium, chloride, glucose, glutamic oxalacetic transaminase, and lactic dehydrogenase were measured. The following observed changes were statistically significant: increases in plasma sodium and chloride and decreases in hemoglobin and glutamic oxalacetic transaminase activity caused by lead; increases in plasma chloride and lactic dehydrogenase activity and a decrease in plasma glucose caused by cadmium; and increases in hemoglobin and plasma sodium and chloride caused by methylmercury. Comparisons were made between these biochemical findings and published data from bioassay and tissue-residue studies regarding the determination of threshold indices of toxicity.