RE: NANFA-- hatchery shad vs. hatchery salmon answer

Jay DeLong (
Thu, 24 Feb 2000 18:51:09 -0800

> I hope that if they introduced all these different stocks to the
> river that
> they did not crossbreed them first. That way if one or two stocks were
> truly well-suited to the river's conditions, their success would
> outpace the
> others' and the new run would move faster to adaptation rather than hoping
> something good would come out of the gene soup.

I'm not just pulling this stuff out of my butt, by the way :-) There have
been many cases where Pacific salmon stocks have been transferred to new
streams to establish new runs. Local stocks transferred did better than
mixed (hybrid) stocks, and better than stocks transferred large distances.
There have been cases of Puget Sound stocks mixed with Columbia River
stocks, and even Alaskan stocks and such. People used to think you could
take the best of what each had and create some super-stock. What you
generally get is a messed up fish that does poorly compared to natural local

Jay DeLong
Olympia, WA

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