Do rainbow trout and Atlantic salmon discriminate kin?

The purpose of this study was to determine if juvenile Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss) can discriminate kin from non-kin, since other salmonid species (coho salmon (Oncorhynchus kisutch) and Arctic charr (Salvelinus alpinus)) have been shown to possess this abil...

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Bibliographic Details
Published in:Canadian Journal of Zoology
Main Authors: Brown, Grant E., Brown, Joseph A.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1992
Subjects:
Animal Science and Zoology
Ecology, Evolution, Behavior and Systematics
Arctic
Arctic charr
Atlantic salmon
Salmo salar
Salvelinus alpinus
Online Access:http://dx.doi.org/10.1139/z92-227
http://www.nrcresearchpress.com/doi/pdf/10.1139/z92-227
Description
Summary:The purpose of this study was to determine if juvenile Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss) can discriminate kin from non-kin, since other salmonid species (coho salmon (Oncorhynchus kisutch) and Arctic charr (Salvelinus alpinus)) have been shown to possess this ability. When tested in water conditioned by conspecifics (kin and non-kin) and heterospecifics in a two-choice tank, both rainbow trout and Atlantic salmon demonstrated a significant preference for kin over non-kin and heterospecifics, indicating that these species possess kin-discrimination abilities. This ability appears to be widespread among salmonid fishes.

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