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Re: raising fry in different temps?
LEO ARIEUX wrote:
> That's an interesting question. I thought that if temperature was to
> have any affect on the sex ratio, it would only do so when
> the eggs were unhatched. As in turtles,
> alligators.....some reptiles, I'm far from sure about all reptiles.
> I have heard of sex changes in fish when they were older but am unsure
> what activates this change (possible askewed
> sex ratio) but have never heard of changes taking place on the scale you
> would need. IMHO of course. Possibly you could check with Wright, if
> anyone would know he probably would. I'd be interested in what you find
Don't ask me. I've heard all the rumors you have. I'm pretty convinced that
some rivulus don't fix their sex until after hatching, and that temp. plays
a role. I'm less convinced pH has anything to do with it.
Sex is not as certain in fish as in mammals, as they don't have a specific
sex chromosome, like we do. A quick visit to the Castro over in SF will show
that even *then* sex is confusing. ;-)
Wright Huntley, Fremont CA, USA, 510 494-8679 huntleyone at home dot com
To err is human. To blame someone else is politics.
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