Re: NANFA-L-- hatchery salmon

Subject: Re: NANFA-L-- hatchery salmon
dlmcneely at
Date: Tue Oct 12 2004 - 14:01:51 CDT

Yes, so far as that goes, that's why I pointed out that a part of the success of such organizations as CFI lies in their use of fish that are just one generation from the wild. To the degree that any selection goes on in the first generation, my answer would change. But remember also the "who gets caught" phenomenon. These fish are a subset of the wild population, thus their genotypes are a subset of the gene pool. And Hardy-Weinberg teaches us that only a very few generations are required to stabilize an allele frequency in a population. That would apply to hatchery populations.


David L. McNeely, Ph.D., Professor of Biology
Langston University; P.O. Box 1500
Langston, OK 73050; email: dlmcneely at
telephone: (405) 466-6025; fax: 405) 466-3307
home page

"Where are we going?" "I don't know, are we there yet?"

----- Original Message -----
From: Moontanman at
Date: Tuesday, October 12, 2004 1:12 pm
Subject: Re: NANFA-L-- hatchery salmon

> In a message dated 10/12/04 1:36:31 PM Eastern Daylight Time,
> ichthos at writes:

wouldn't first generation fry from captive bred but wild
> caught fish
> be the same as fish that bred in the wild?>

> Moon

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: Fri Dec 31 2004 - 11:27:44 CST