Chronic Toxicity of Hydrogen Sulfide to Gammarus pseudolimnaeus

Donavon M. Oseid, Lloyd L. Smith

Transactions of the American Fisheries Society · 1974 · 37 citations · 0 references

Concepts

Abstract

Gammarus pseudolimnaeus from two trout streams were exposed to various levels of hydrogen sulfide from 0.0007 to 0.0192 mg/liter in a flow-through apparatus for periods of 65, 95, and 105 days in four tests. Results indicate that 0.002 mg/liter of H2S is the maximum safe concentration for Gammarus, but below this level there is increased reproduction or survival. Mean 96-hr LC50 for Gammarus from the same populations was 0.022 mg/liter of H2S or approximately 10 times the safe level.