Results from RV Utafiti research cruises

Getabu, A. and Nyaudi, J. (1999) Results from RV Utafiti research cruises. In: Tweddle, D. and Cowx, I.G. (eds.) Report of the fourth Fisheries Data Working Group (FIDAWOG) Workshop, Kisumu, Kenya, 16-20 Aug. 1999. Kisumu, Kenya, Fisheries Data Working Group of the Lake Victoria Fisheries Research Project, pp. 84-90. (LVFRP Technical document,6)

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Abstract

Monthly fish surveys were made from 1997-1999 in the Kenyan waters of Lake Victoria in order to estimate the magnitude of fisheries resources. Sample sites were defined using GPS while thirty minute hauls in alternate grid squares were made. Demersal fish biomass was estimated using the swept area method, while for trawling two different trawl nets were used. Collected fish was sorted into species, measured (TL) and weighed. Smaller fish were mixed on deck and sub-samples taken. Sexual maturity stages of fish were also observed. Areas with consistency high catches were located outside major urban and riverine influence where most artisanal fishermen were concentrated. Very low catches were obtained from areas that had recently been covered by water hyacinth Eichhornia crassipes

Item Type: Book Section
Title: Results from RV Utafiti research cruises
Personal Creator/Author:
CreatorsEmail
Getabu, A.
Nyaudi, J.
Title of Book: Report of the fourth Fisheries Data Working Group (FIDAWOG) Workshop, Kisumu, Kenya, 16-20 Aug. 1999
Editors:
EditorsEmail
Tweddle, D.
Cowx, I.G.
Series Name: LVFRP Technical document
Number: 6
Page Range: pp. 84-90
Date: 1999
Publisher: Fisheries Data Working Group of the Lake Victoria Fisheries Research Project
Place of Publication: Kisumu, Kenya
Projects: Lake Victoria Fisheries Research Project Phase II
Funders: European Union Lake Victoria Fisheries Research Project
Institution: Lake Victoria Fisheries Research Project Phase II
Event Title: FIDA WOG Workshop, 4
Event Type: Workshop
Event Location: Kisumu (Kenya)
Event Dates: 16-20 Aug 1999
Issuing Agency: Lake Victoria Fisheries Organization
Additional Information: LVFRP/TECH/99/06
Uncontrolled Keywords: Kenya, Lake Victoria; biomass; cruise reports; fishery resources; fishery surveys; research vessels; sexual maturity; species diversity; Eichhornia crassipes
Subjects: Fisheries
Biology
Item ID: 3749
Depositing User: Ms Maria Kalentsits
Date Deposited: 13 Jul 2010 20:27
Last Modified: 29 Sep 2011 16:57
Related URLs:
URI: http://aquaticcommons.org/id/eprint/3749

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