Subject: Re: NANFA-L-- Review of Suckers in North America
dlmcneely at lunet.edu
Date: Tue Oct 12 2004 - 11:05:54 CDT
Natural selection for success in hatcheries? Less genotypic variability? Hatchery fish are the progeny of a restricted set of parents compared to wild fish.
Dave
David L. McNeely, Ph.D., Professor of Biology
Langston University; P.O. Box 1500
Langston, OK 73050; email: dlmcneely at lunet.edu
telephone: (405) 466-6025; fax: 405) 466-3307
home page http://www.lunet.edu/mcneely
"Where are we going?" "I don't know, are we there yet?"
----- Original Message -----
From: Moontanman at aol.com
Date: Tuesday, October 12, 2004 9:39 am
Subject: Re: NANFA-L-- Review of Suckers in North America
> In a message dated 10/12/04 10:34:20 AM Eastern Daylight Time,
> dlmcneely at lunet.edu writes:
>
>
> >
> > Yes. Mainly because the captive raised animals have not learned
> the same
> > behaviors as the wild ones. If an animal does not have to
> forage, but is
> > simply handed a meal, then it doesn't know how to find a meal.
> If it has never
> > faced predation, it does not know how to escape. Lots of data
> on these ideas
> > in the literature.
> >
> > Dave
> >
> >
>
> I understand that concept but why would fish released from a
> hatchery when
> tiny be any less likely to survive that newly hatched wild fish?
>
> Moon
>
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: Fri Dec 31 2004 - 11:27:43 CST