Parr–smolt transformation of a nonanadromous population of Atlantic salmon ( Salmo salar ) in Norway

Morphological and physiological indices of parr–smolt transformation of fish from anadromous and nonanadromous hatchery-reared populations of Atlantic salmon (Salmo salar) were compared. Both anadromous and nonanadromous Atlantic salmon showed a complete smolt colouration and had a similar high gill...

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Bibliographic Details
Published in:Canadian Journal of Zoology
Main Authors: Staurnes, Magne, Lysfjord, Grete, Berg, Ole Kristian
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1992
Subjects:
Animal Science and Zoology
Ecology, Evolution, Behavior and Systematics
Norway
Atlantic salmon
Salmo salar
Online Access:http://dx.doi.org/10.1139/z92-030
http://www.nrcresearchpress.com/doi/pdf/10.1139/z92-030
Description
Summary:Morphological and physiological indices of parr–smolt transformation of fish from anadromous and nonanadromous hatchery-reared populations of Atlantic salmon (Salmo salar) were compared. Both anadromous and nonanadromous Atlantic salmon showed a complete smolt colouration and had a similar high gill Na + ,K + –ATPase activity (significantly (P < 0.05) different from that of parr), indicating both morphological and physiological aspects of parr–smolt transformation. The evolutionary stability of the parr–smolt transformation of nonanadromous Atlantic salmon is discussed.

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