||Use of Fish Ventilation Frequency to Estimate Chronically Safe Toxicant Concentrations.
Tubb, Richard A. ;
||Corvallis Environmental Research Lab., OR.
Water pollution ;
Salmo gairdneri ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||A 96-hour toxicity test with fish ventilation frequency as the response variable was developed to estimate safe zinc concentrations for steelhead Salmo gairdneri. Two Oregon steelhead strains were exposed to zinc at different water temperatures and total hardnesses (7, 12, and 17C; 25 and 125 mg/liter as CaCO3). Ventilation frequencies enumerated from bioelectric potential generated by buccal and opercular openings and closings showed significant increases at the highest test concentration in five of 10 tests. This indicates that ventilation-frequency tests are at least as sensitive as long-term toxicity tests and may be used to screen chemicals for potential harmful effects on fish.
||Pub. in Transactions of the American Fisheries Society, v111 n1 p70-77 Jan 82. Color illustrations reproduced in black and white.
|NTIS Title Notes
||Reprint: Use of Fish Ventilation Frequency to Estimate Chronically Safe Toxicant Concentrations.
|PUB Date Free Form
||13B; 6T; 6C; 68D; 57Y; 57Z
||PC A02/MF A01