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Differentiation in Coregonus zenithicus in Lake Superior

Canadian Journal of Fisheries and Aquatic Sciences

By:
and
DOI: 10.1139/f80-267

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Abstract

Morphological variation in Coregonus zenithicus has long plagued biologists working on Lake Superior ciscoes. Some of this variation is due to allometric growth; earlier workers incorrectly recognized large Czenithicus as a distinct species, Cnigripinnis cyanopterusCoregonus reighardi dymondi is a variant of Czenithicus in northern bays of Lake Superior and Lake Nipigon. The morphological differences between members of spring and fall spawning populations of Czenithicus in Lake Superior are no greater than those between geographically separate populations. We conclude that spawning time and geographic isolation act similarly in effecting differentiation of coregonine populations, and that populations with different spawning times do not necessarily represent different species.Key wordsCoregonus zenithicus, cisco, Great Lakes, multivariate morphometrics, endangered species, taxonomy

Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Differentiation in Coregonus zenithicus in Lake Superior
Series title:
Canadian Journal of Fisheries and Aquatic Sciences
DOI:
10.1139/f80-267
Volume:
37
Issue:
11
Year Published:
1980
Language:
English
Publisher:
NRC Research Press
Contributing office(s):
Great Lakes Science Center
Description:
8 p.
First page:
2228
Last page:
2235
Online Only (Y/N):
N
Additional Online Files (Y/N):
N