Two hermaphroditic alewives from Lake Michigan

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Hermaphroditism has been reported frequently among many of the Clupeidae, but only one account of hermaphroditism has been published for the alewife, Alosa pseudoharengus. Rothschild discovered four hermaphroditic alewives among 444 fish he examined from Cayuga Lake, New York. We recently collected two hermaphroditic alewives from Lake Michigan. Both fish were normal in external appearance but were easily identified as hermaphrodites by gross examination of their gonads. The first hermaphrodite (177 mm T.L.) was discovered among several hundred normal adult alewives captured in early July 1965 in the Kalamazoo River about one mile upstream from Lake Michigan. The second hermaphroditic alewife (152 mm T.L.) was obtained from a sample of 160 adult alewives captured in Lake Michigan near the mouth of the Kalamazoo River in mid-April 1966.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Two hermaphroditic alewives from Lake Michigan
Series title Copeia
Volume 1968
Issue 2
Year Published 1968
Language English
Contributing office(s) Great Lakes Science Center
Description p. 406-407
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Copeia
First page 406
Last page 407
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