Toxicity and accumulation of cadmium in the crayfish,Orconectes virilis (Hagen)

Autor: Mirenda, Richard J.
Zdroj: Archives of Environmental Contamination and Toxicology; July 1986, Vol. 15 Issue: 4 p401-407, 7p
Abstrakt: The acute toxicity of cadmium to the crayfishOrconectes virilis was determined over a two week exposure period. Crayfish exhibited an increased sensitivity to cadmium over time; LC50 values decreased from 6.1 mg Cd/L for 96 hr to 0.70 mg Cd/L for 14 days. An incipient LC50 value of 0.06 mg Cd/L was also calculated forO. virilis. Whole animal and tissue analyses for cadmium were performed on the crayfish used in the acute toxicity experiments. Whole animal cadmium concentrations exhibited a linear relationship to exposure concentrations as did the gill and antennal glands. Cadmium tissue concentrations were from highest to lowest in the following tissues: gill > hepatopancreas > antennal gland > carapace and abdominal muscle.
Databáze: Supplemental Index
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