Trouts and Salmons
Identifying the Coho Salmon
It can be quite difficult to distinguish coho salmon from chinook salmon. Pay particular attention to the gums, anal fin rays, and spotting on the tail.
Look for:
-spots only on upper half (lobe) of tail
-variously gray lower gums
-spots small and round to oval (no larger than half diameter of eye or
about size of pupil of eye)
-rays in anal fin ranging from 11 to 15
Complete coho salmon profile | Main trouts and salmons page
Sources: "Fishes of Isle Royale," by K.F. Lagler and C. R.
Goldman, Isle Royale Natural History Association, 1982.
Fishes of Wisconsin, by George C. Becker, University of Wisconsin Press,
1983.
Freshwater Fishes of Canada, by W.B. Scott and E.J. Crossman, Fisheries
Research Board of Canada, 1973.
copyright 2001 University of Wisconsin Sea Grant Institute
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