Temperature Selection of Juvenile Atlantic Salmon ( Salmo salar ) as Influenced by Various Toxic Substances

Previous exposure to sodium pentachlorophenate (NaPCP), Guthion ® , malathion, Dursban ® , and Dibrom ® lowered the preferred temperature for juvenile Atlantic salmon (Salmo salar) tested in a horizontal temperature gradient. Lindane, CuSO 4 , ZnSO 4 , CdSO 4 , Sevin ® , heptachlor, and fenitrothion...

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Bibliographic Details
Published in:Journal of the Fisheries Research Board of Canada
Main Author: Peterson, R. H.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1976
Subjects:
Online Access:http://dx.doi.org/10.1139/f76-219
http://www.nrcresearchpress.com/doi/pdf/10.1139/f76-219
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Summary:Previous exposure to sodium pentachlorophenate (NaPCP), Guthion ® , malathion, Dursban ® , and Dibrom ® lowered the preferred temperature for juvenile Atlantic salmon (Salmo salar) tested in a horizontal temperature gradient. Lindane, CuSO 4 , ZnSO 4 , CdSO 4 , Sevin ® , heptachlor, and fenitrothion did not change the preferred temperature significantly. Comparison with other published results indicates that those substances that increase the preferred temperature are more toxic (based on relevant changes in 24-h LC50) at low temperatures and vice versa. It is suggested that such shifts in selected temperature may be of potential immediate, short-term, survival value to the fish.