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Toxicity of arsenic to developing muskellunge fry ( Esox masquinongy)
Journal article

Toxicity of arsenic to developing muskellunge fry ( Esox masquinongy)

James R. Spotila and Frank V. Paladino
Comparative biochemistry and physiology. C, Comparative pharmacology, v 62(1)
1979
PMID: 38044

Abstract

1. The tolerance of young muskellunge ( Esox masquinongy) fry to arsenic changed dramatically over the period of 12 weeks. 2. Newly hatched fry in their inactive stage prior to swim up were insentive to As concentrations as high as 5.0 mg/l. 3. Fry undergoing swim-up had a 96-hr LC 50 value of 1.1 mg As/l, 5-week old fry had a LC 50 value of 2.6 mg As/l and 12-week old fry had a LC 50 value of 16.0 mg As/l. 4. Acute sensitivity to toxic substances during sensitive stages in the life cycle of a fish, even if these stages are of short duration, may be the limiting factor in the ability of a species to survive chronic exposure to environmental contaminants.

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