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Recovery of foraging behavior of atlantic salmon exposed to a simulated commercial application of fenitrothion
Author(s) -
Morgan M. J.,
Kiceniuk J. W.
Publication year - 1991
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620100712
Subject(s) - fenitrothion , salmo , foraging , predation , fishery , organophosphate , biology , pesticide , environmental science , ecology , toxicology , zoology , fish <actinopterygii>
Fenitrothion is an organophosphate insecticide, used to control forest pests, that has often been sprayed in areas containing streams inhabited by Atlantic salmon (Salmo salar). This study simulated the exposure of Atlantic salmon during operational spraying of fenitrothion to determine if there would be effects on foraging behavior and the length of time required for recovery from any effect. The foraging sequence of the Atlantic salmon exhibited only minor effects of exposure, and the number of ingested prey was not affected. However, the reaction distance of the salmon to prey decreased significantly for those exposed to fenitrothion. The decline in reaction distance was still evident six weeks after exposure.

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