Toxicity of antimycin to crayfish, Procambarus spp
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Abstract
Laboratory studies were conducted to determine acute toxicity of antimycin to crayfish eggs and juvenile crayfish. Eggs appeared unaffected by antimycin concentrations of up to 15 ppb. Higher concentrations were not tested. Tolerance to antimycin increased with increase in crayfish size (8 mm juvenile LC50=68 ppb, 19 mm juvenile LC50=168 ppb, and 30 mm juvenile LC50=735 ppb). LC values were based on 96 hour mortalities for molted and nonmolted crayfish combined. LC50 values for molted crayfish showed they were significantly less tolerant at nearly all antimycin test concentrations than were nonmolted crayfish (molted 8 mm juvenile LC50=39 ppb, molted 19 mm juvenile LC50=60 ppb. and molted 30 mm juvenile LC50=175 ppb). More crayfish molted in the tests than in the controls. Antimycin may not have actually caused molting but may have created a stress which helped initiate the molting process.
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Brown RT and Avault Jr. JW. (1975). Toxicity of antimycin to crayfish, Procambarus spp. Freshwater Crayfish 2(1):351-369. doi: 10.5869/fc.1975.v2.351
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