Territorial behavior of juvenile Atlantic salmon reduces predation by brook trout

Brook trout (Salvelinus fontinalis) ate 26% of 58 juvenile (7–11 cm) Atlantic salmon (Salmo salar) introduced into an artificial stream 24 h before the trout, but they ate only 8% of 60 salmon which had been present long enough to establish territories. Man-made environmental alterations may decreas...

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Bibliographic Details
Published in:Canadian Journal of Zoology
Main Author: Symons, Philip E. K.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1974
Subjects:
Animal Science and Zoology
Ecology, Evolution, Behavior and Systematics
Atlantic salmon
Salmo salar
Online Access:http://dx.doi.org/10.1139/z74-091
http://www.nrcresearchpress.com/doi/pdf/10.1139/z74-091
Description
Summary:Brook trout (Salvelinus fontinalis) ate 26% of 58 juvenile (7–11 cm) Atlantic salmon (Salmo salar) introduced into an artificial stream 24 h before the trout, but they ate only 8% of 60 salmon which had been present long enough to establish territories. Man-made environmental alterations may decrease territorial behavior of young salmon thereby increasing their vulnerability to predation.

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