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Evolution and distribution of the coregonids

Journal of the Fisheries Research Board of Canada

By:
DOI: 10.1139/f57-018

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Abstract

Increased knowledge of the morphological and physiological plasticity of the coregonids has minimized the significance of conflicting morphological data that have retarded the development of an evolutionary theory. Of the four phyletic lines recognized through worldwide studies,Coregonus originated in the lake and stream area of northwest Eurasia, Stenodus andProsopium evolved in the rivers of Siberia and northwest America respectively, and Leucichthysbecame differentiated in the lake-studded area of northeast America. Isolation and range extension were facilitated by events of the Pleistocene epoch. Inter-continental exchange most likely took place in the Bering Strait region. Representatives of each group in its area of origin are highly variable. Range extensions of each group are characterized by lesser morphological variability and at the extremes only one or two relatively stable species remain.

Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Evolution and distribution of the coregonids
Series title:
Journal of the Fisheries Research Board of Canada
DOI:
10.1139/f57-018
Volume:
14
Issue:
4
Year Published:
1957
Language:
English
Publisher:
NRC Research Press
Contributing office(s):
Great Lakes Science Center
Description:
6 p.
First page:
599
Last page:
604
Online Only (Y/N):
N
Additional Online Files (Y/N):
N