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Re: pH sexratio Pelvicachromis
Romer and Beisenherz found that temperature has more effect than pH.
However, they only looked at 4.5, 5.5, and 6.5 which can be considered
acidic extremes. Furthermore, since temperature has an effect on growth
rate, it is possible that growth rate is a confounding variable.
Therefore, the validity of the claim is compromised.
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Jonathan Fung... Reef Geek
Dalhousie University Honours Marine Biology
Aqua Creations Inc. Assistant Manager
writer for Marine Fish Monthly
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On Tue, 27 Feb 2001, Jacques BESSON wrote:
> Is the influence of the pH about sexratio on the fry of this fish the same as to
> apisto ?
> The study of Romer , about Apisto, concludes ( if I remember correctly) : " Low pH
> (5.5 and below) produced more males", and influence of temperature is more
> significant than pH.
> An idea about ?
> Thanks
> J.Besson
>
>
>
>
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