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Please use this identifier to cite or link to this item: http://hdl.handle.net/1834/1274

Title: Some aspects of the reproductive biology of the Nile tilapia Oreochromis niloticus (L) in the Nyanza Gulf of Lake Victoria, Kenya
Authors: Lung'ayia, H.B.O.
ASFA Terms: Fecundity
Length-weight relationships
Sex ratio
Spawning
Issue Date: 1994
Publisher: ICIPE SCIENCE
Citation: Okemwa, E.; Wakwabi, E.O.; Getabu, A. (Ed.) Proceedings of the Second EEC Regional Seminar on Recent Trends of Research on Lake Victoria Fisheries, NAIROBI : ICIPE SCIENCE, p. 121-127
Abstract: Some aspects of the reproductive biology of the Nile tilapia, Oreochromis niloticus population in the Nyanza Gulf of lake Victoria, Kenya were investigated from March to August 1991. The overall sex ratio was 2.08:1 in favour of males. A variation in sex ratio was observed with females predominating over males in lengths between 37.5 and 41.0 cm total length. Fecundity ranged from 864 to 6316 eggs with an average of 2141. The relationship between fecundity (F), and total length (L) and weight (W) was F=22.755 L super(1.2141); F=177.142 W super(0.342). The fecundity was compared to that reported elsewhere and together with spawning habits, were suggested as some of that factors contributing to the abundance of the Nile tilapia over other tilapiine fish species in Lake Victoria.
URI: http://hdl.handle.net/1834/1274
ISBN: 9290640789
Appears in Collections:Conference Papers

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