Genetic variation in chinook, Oncorhynchus tshawytscha, and coho, O. Kisutch
Fishery Bulletin
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Abstract
We used starch-gel electrophoresis to genetically characterize the populations of chinook salmon, Oncorhynchus tshawytscha, and coho salmon, O. kisutch, in the major drainages of the north coast of Washington (the Quillayute, Uoh, Queets, and Quinault Rivers). Of 55 loci examined for electrophoretically detectable variation. 6 were polymorphic (frequency of the common allele was less than 0.95) in chinook salmon and 3 in coho salmon. Statistical tests of interdrainage and intradrainage variation for coho salmon were tenuous because most of the fish examined were from a single year class so that we could not account for variation among year classes. Nevertheless, these tests suggested that distinct stocks ofcoho salmon exist within drainages. and that variation was not significantly greater among drainages than within drainages. Interdrainage variation for wild chinook salmon was not significant. The data suggested that summer chinook salmon were electrophoretically different from fall chinook salmon, and the hatchery populations of chinook salmon were distinct from wild fish. A hatchery population developed primarily from north coast fish was electrophoretically more similar to wild chinook salmon than were the others.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Genetic variation in chinook, Oncorhynchus tshawytscha, and coho, O. Kisutch |
| Series title | Fishery Bulletin |
| Volume | 85 |
| Issue | 4 |
| Year Published | 1987 |
| Language | English |
| Publisher | National Marine Fisheries Service |
| Contributing office(s) | Western Fisheries Research Center |
| Description | 21 p. |
| First page | 681 |
| Last page | 701 |
| Country | United States |
| State | Washington |
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