Author(s): GmezMrquez JL, PeaMendoza B, SalgadoUgarte IH, GuzmnArroyo M
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Abstract Sex ratio, size at maturity, maturity stages, fecundity and egg diameter of Oreochromis niloticus from Coatetelco Lake, Morelos State, Mexico, were studied from January to December 1993. Sex ratio (male:female) was approximately 1:1.02. Length at maturity was 117 mm (males) and 120 mm (females). The fecundity ranged between 104 and 709 eggs, with egg diameter from 1,000 to 3,000 microns. The gonadosomatic and hepatosomatic index indicate that the species breeds during summer and winter.
This article was published in Rev Biol Trop
and referenced in Journal of Climatology & Weather Forecasting