Roy Hunter
ANGFA NA
http://ourworld.compuserve.com/homepages/royhunter
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> From: Bruce Hansen <bhansen at ozemail.com.au>
> To: Rainbowfish Mailing List <rainbowfish at pcug.org.au>
> Subject: [RML] Sex distribution in fry.
> Date: Friday, December 27, 1996 1:39 AM
>
> Hello All,
>
> I know we all had a good discussion on the effects of pH and/or calcium
on
> sex ratios in Rainbowfish fry some time back but a chance conversation
> yesterday has raised another factor.
> I was talking to Marque Crozman about Sea Turtle conservation and the
fact
> that rookery temperature determines sex ratios and that they have to
ensure
> a proper ratio of mainland to island rookeries to allow for this and he
> volunteered the info that he felt that he had noticed the same phenomenon
> with his fish i.e. all other factors were as equal as possible but a
> change in temperature of some 4 C (I think) had reversed the sex ratios
in
> his fry from one particular species.
>
> I wonder if any other listmember has had any experiences along these
lines?
>
> Bruce Hansen
> ANGFA
>
> email: bhansen at ozemail.com.au
> Don't miss the ANGFA web pages at -
> http://www.ozemail.com.au/~fisher/angfa.htm