Responses of Atlantic salmon alevins to temperature gradients

Newly hatched Atlantic salmon (Salmo salar) alevins aggregated in the lowest temperature available in a temperature gradient, possibly because of lower levels of locomotor activity at lower temperatures. At approximately 250 degree-days after hatching, alevins demonstrated a temperature selection ca...

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Bibliographic Details
Published in:Canadian Journal of Zoology
Main Authors: Peterson, R. H., Metcalfe, J. L.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1979
Subjects:
Animal Science and Zoology
Ecology, Evolution, Behavior and Systematics
Atlantic salmon
Salmo salar
Online Access:http://dx.doi.org/10.1139/z79-184
http://www.nrcresearchpress.com/doi/pdf/10.1139/z79-184
Description
Summary:Newly hatched Atlantic salmon (Salmo salar) alevins aggregated in the lowest temperature available in a temperature gradient, possibly because of lower levels of locomotor activity at lower temperatures. At approximately 250 degree-days after hatching, alevins demonstrated a temperature selection capability and no longer aggregated in the lowest temperature. Possible mechanisms underlying the observed distributional change in a temperature gradient are discussed.

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