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Study finds wild coho may seek genetic diversity in mate choice

Posted: Friday, May 30th, 2014


Researchers trap and fin clip this coho salmon on Calapooya Creek, a tributary of the Umpqua River in Oregon, as part of their study of hatchery and wild fish.


A new study by researchers at Oregon State University suggests that wild coho salmon that choose mates with disease-resistant genes different from their own are more likely to produce greater numbers of adult offspring returning to the river some three years later.

The researchers also found that hatchery-reared coho for some unknown reason do not appear to have the same ability to select mates that are genetically diverse, which may, in part, explain their comparative lower reproductive success.

For the complete article see the 05-30-2014 issue.

Click here to purchase an electronic version of the 05-30-2014 paper.


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