The bottom line is you better have-in-least thousands of fish to release if
you want to have any left to grow and reproduce. I know that the CFI people
released about 1000 sub-adult boulder darters-in-one site in the Elk River
in Fayetteville, Tennessee as part of their breeding & release program, and
several other sites received about that many. They were all marked with
fluorescent dye, and two months later CFI people saw some marked individuals
at each site while snorkeling. I haven't heard further updates. But the
original population had declined due to environmental insults, not predation
by an exotic, so maybe there's more hope for this darter than for many other
species.
--Bruce Stallsmith
along the Tennessee
Huntsville, AL, US of A
> I was taught that what you speak of is pheno types
>showing up under different enviroments. I bet if they
>did genetic test on the fish the genes would be the
>same. Genes do not change in one generation from the
>wild caught fish. They may look totally different
>because of the different enviroment but genetic
>changes take time.
>
> Later, John
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