Research Document - 2010/038
Population Structuring and Inter-river Movements of Northern Form Dolly Varden, (Salvelinus malma malma) (Walbaum 1792), Along the North Slope of Canada and Alaska
By M.W. Kowalchuk, J.D. Reist, R. Bajno and C.D. Sawatzky
Abstract
Northern form Dolly Varden represent a unique part of the Canadian fish fauna, occurring in only six to eight rivers in Arctic Canada. The fish in each river system represent distinct populations based upon genetic and morphological data presented within this research document. Anadromous fish from each population display a strong sense of homing to their natal rivers, although a small percentage of non-spawning fish do stray between non-natal rivers for overwintering.
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