![]() ![]() ![]() galilaeus began in January, 1992 and extended until March, 1994. The minimum depth is 0.95m while the maximum depth is 6.4m.ĭuring the period of study, sampling for S. The reservoir has a catchment area of about 116 km 2 (4 o 31'E to 4 o 39'E, 7 o 21' N to 7 o 35'N) in Osun State, Nigeria. The major tributaries are rivers Opa, Obudu and Esinmirin. Study area: The study area was the Opa reservoir which was impounded in 1978. galilaeus especially in the Opa reservoir. This work aims at providing further information on the fecundity of S. The knowledge of fish fecundity is needed in establishing its production potential and consequently its exploitation and management rationale. The fecundity and in most cases, some other aspects of the reproductive biology of cichlids have been documented by Akintunde (1976), Fagade and Adebisi (1979), Fagade (1983), Adebisi (1987) and many others. 1974).Ĭichlids are perhaps the most economically important fishes of tropical African freshwaters ( Fryer and Iles 1972). Sarotherodon galilaeus (Artedi) is one of the dominant and endemic cichlids of Nigerian inland water bodies (Petr. Reproductive biology, Sarotherodon galilaeus, fecundity, gonado-somatic index, biparental. The species breeds year-round (mature specimens occurred in samples collected throughout the 27-month study period). Length at maturity was 12.5 cm (males) and 11.7 cm (females). Sex ratio was approximately 1:1 (male: female). The fishing methods employed for collecting the 853 specimens were gillnetting and castnetting. Sampling began in January, 1992 and extended until March, 1994. The fish Sarotherodon galilaeus was collected in Opa reservoir, Obafemi Awolowo University, Ile-Ife, Nigeria. Fecundity of Sarotherodon galilaeus (Pisces: Cichlidae) ![]()
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