||Cadmium and Zinc Toxicity to 'Jordanella floridae'.
Spehar., Robert L. ;
||Environmental Research Lab.-Duluth, Minn.
Fresh water fishes ;
Life cycles ;
Jordanella florida ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||Cadmium and zinc toxicity to the flagfish (Jordanella floridae) was determined on the basis of 96-hr median lethal concentrations (LC50) and significant decreases (P=0.05) in survival, growth, and reproduction over the complete life cycle of the fish. The 96-hr LC50 values for cadmium and zinc to juvenile flagfish were 2,500 and 1,500 microg/liter, respectively. In chronic tests, reproduction was the most sensitive indicator of cadmium toxicity and was inhibited at 8.1 microg/liter. Tissue-concentration analysis showed that fish exposed to concentrations of 1.7 microg/liter and above accumulated significantly greater amounts of cadmium than those in the controls. In zinc tests, survival of larvae (not exposed as embryos) and growth of females were the most sensitive measure of zinc toxicity and were reduced at respective concentrations of 85 and 51 microg/liter.
||Pub. in Jnl. of the Fisheries Research Board of Canada, v33 p1939-1945 1976. Text in English. Abstract in French and English.
|NTIS Title Notes
||+++Reprint: Cadmium and Zinc Toxicity to 'Jordanella floridae'.
|PUB Date Free Form
||7 Jul 75
||6T; 6F; 13B; 98F; 57Y; 68D; 57H; 86O
||PC A02/MF A01