Aquatic Commons

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)

This is the latest version of this item.

[img]
Preview
PDF - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (162Kb) | Preview

    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: Mr Luigi Baldassari
    Date Deposited: 13 Jul 2010 12:41
    Last Modified: 29 Sep 2011 18:57
    URI: http://aquaticcommons.org/id/eprint/3753

    Available Versions of this Item

    Actions (login required)

    View Item

    Document Downloads

    More statistics for this item...