Reproductive biology of Orechromis niloticus (L.) (Pisces: Cichlidae) in the Nyanza Gulf of Lake Victoria

Ojuok, J.E. (1999) Reproductive biology of Orechromis niloticus (L.) (Pisces: Cichlidae) in the Nyanza Gulf of Lake Victoria. In: Tweddle, D. and Cowx, I.G. (eds.) Report on third Fisheries Data Working Group (FIDAWOG) workshop held at the Triangle Hotel, Jinja, 29 March to 1 April 1999. Jinja, Uganda, Fisheries Data Working Group of the Lake Victoria Fisheries Research Project, pp. 63-67. (LVFRP Technical Document,6)

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Abstract

Fish samples were collected using seine and trawl nets in Nyanza Gulf, Lake Victoria (Kenya) in order to study the reproductive and gonadal patterns of Oreochromis niloticus; samples were collected from June 1998 to February 1999. The variation in relative condition factor and monthly variation in gonad weight showed spawning took place between June and July. Most ripe fish were recovered between November and February, while a slight drop in GSI for males was noted between November and January. External factors triggering reproductive strategy are now being addressed

Item Type: Book Section
Title: Reproductive biology of Orechromis niloticus (L.) (Pisces: Cichlidae) in the Nyanza Gulf of Lake Victoria
Personal Creator/Author:
CreatorsEmail
Ojuok, J.E.
Title of Book: Report on third Fisheries Data Working Group (FIDAWOG) workshop held at the Triangle Hotel, Jinja, 29 March to 1 April 1999
Editors:
EditorsEmail
Tweddle, D.
Cowx, I.G.
Series Name: LVFRP Technical Document
Volume: 6
Page Range: pp. 63-67
Date: 1999
Publisher: Fisheries Data Working Group of the Lake Victoria Fisheries Research Project
Place of Publication: Jinja, Uganda
Projects: Lake Victoria Fisheries Research Project Phase II
Institution: Lake Victoria Fisheries Research Project Phase II
Issuing Agency: Lake Victoria Fisheries Organization
Additional Information: LVFRP/TECH/99/06
Uncontrolled Keywords: Africa, Lake Victoria; Kenya, Nyanza, Lake Victoria, Nyanza Gulf; condition factor; freshwater fish; gonads; reproductive behaviour; spawning; Oreochromis niloticus
Subjects: Fisheries
Biology
Item ID: 3753
Depositing User: Ms Maria Kalentsits
Date Deposited: 13 Jul 2010 10:41
Last Modified: 29 Sep 2011 16:57
Related URLs:
URI: http://aquaticcommons.org/id/eprint/3753

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