The Pygmy Whitefish, Coregonus Coulteri, in Lake Superior
作者:
PaulH. Eschmeyer,
ReeveM. Bailey,
期刊:
Transactions of the American Fisheries Society
(Taylor Available online 1955)
卷期:
Volume 84,
issue 1
页码: 161-199
ISSN:0002-8487
年代: 1955
DOI:10.1577/1548-8659(1954)84[161:TPWCCI]2.0.CO;2
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Bottom trawling by the U. S. Fish and Wildlife Service motor vessel Cisco in Lake Superior in 1952–1953 revealed a large population of a tiny whitefish, Coregonus (Prosopium) coulteri, which has been reported previously only from northwestern North America. The hiatus in range, from Lake Superior to the Columbia River basin, is the greatest known for a North American freshwater fish. Although minor structural differences characterize the disjunct populations of the pygmy whitefish, these are not deemed worthy of nomenclatorial recognition. Comparisons with related species indicate that the pygmy whitefish is distinctive in the small size, large scales, few vertebrae, few pyloric caeca, and in other characters.
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