Synopsis
Tilapia zillii breeds all year round in the equatorial Lake Naivasha with slightly high breeding intensity during wet months (March, May and July–August). A sex ratio of 1 : 1.28 was found between males and females. The smallest mature male and female were 9.0 and 11.0 cm respectively. The fecundity ranged from 2990 to 12344 eggs, with a mean of 6606 eggs. Fecundity showed a curvilinear relationship with total length (log F = 1.7034 + 1.6370 log L) and a linear relationship with body weight (F = 2197 + 28.76 W)
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Siddiqui, A.Q. Reproductive biology of Tilapia zillii (Gervais) in Lake Naivasha, Kenya. Environ Biol Fish 4, 257–262 (1979). https://doi.org/10.1007/BF00005482
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DOI: https://doi.org/10.1007/BF00005482