Record Display for the EPA National Library Catalog


Main Title Chronic Effects of Cadmium and Zinc Mixtures on Flagfish (Jordanella floridae).
Author Spehar, Robert L. ; Leonard, Edward N. ; DeFoe., David L. ;
CORP Author Environmental Research Lab.-Duluth, Minn.
Year Published 1978
Report Number EPA/600/J-78-029;
Stock Number PB-284 034
Additional Subjects Fishes ; Metals ; Cadmium ; Zinc ; Toxicology ; Concentration(Composition) ; Fresh water fishes ; Exposure ; Lake Superior ; Residues ; Experimental data ; Growth ; Reproduction(Biology) ; Life cycles ; Accumulation ; Bioassay ; Lethal dosage ; Survival ; Toxicity ; Mixtures ; Reprints ; Water pollution effects(Animals) ; Heavy metals ; Bioaccumulation ; Flagfish ; Jordanella floridae ; Toxic substances
Library Call Number Additional Info Location Last
NTIS  PB-284 034 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 8p
Flagfish were exposed to cadmium and zinc as individual metals and as mixtures (4.8-8.5 micrograms Cd/liter and 73.4-139 micrograms Zn/liter) through one complete life cycle in Lake Superior water (45 mg/liter total hardness). Cadmium and zinc did not act additively at sublethal concentrations when combined as mixtures; however, a joint action of the toxicants was indicated. Effects on survival showed that the toxicity of cadmium and zinc mixtures was little if any greater than the toxicity of zinc alone. Mechanisms of zinc toxicity in this test were similar to those in previous chronic tests of individual metals, indicating that the presence of cadmium did not influence the mode of action of zinc. Comparisons between metal residues in fish exposed to each individual metal or to the metal mixtures showed that the uptake of one metal was not influenced by the presence of the other.