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 |
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| Title: | Results from RV Utafiti research cruises |
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| Personal Creator/Author: | | Creators | Email |
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| Getabu, A. | | | Nyaudi, J. | |
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| Title of Book: | Report of the fourth Fisheries Data Working Group (FIDAWOG) Workshop, Kisumu, Kenya, 16-20 Aug. 1999 |
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| Editors: | | Editors | Email |
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| Tweddle, D. | | | Cowx, I.G. | |
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| Series Name: | LVFRP Technical document |
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| Number: | 6 |
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| Page Range: | pp. 84-90 |
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| Date: | 1999 |
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| Publisher: | Fisheries Data Working Group of the Lake Victoria Fisheries Research Project |
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| Place of Publication: | Kisumu, Kenya |
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| Projects: | Lake Victoria Fisheries Research Project Phase II |
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| Funders: | European Union Lake Victoria Fisheries Research Project |
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| Institution: | Lake Victoria Fisheries Research Project Phase II |
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| Event Title: | FIDA WOG Workshop, 4 |
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| Event Type: | Workshop |
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| Event Location: | Kisumu (Kenya) |
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| Event Dates: | 16-20 Aug 1999 |
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| Issuing Agency: | Lake Victoria Fisheries Organization |
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| Additional Information: | LVFRP/TECH/99/06 |
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| Uncontrolled Keywords: | Kenya, Lake Victoria; biomass; cruise reports; fishery resources; fishery surveys; research vessels; sexual maturity; species diversity; Eichhornia crassipes |
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| Subjects: | Fisheries
Biology |
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| Item ID: | 3749 |
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| Depositing User: | Mr Luigi Baldassari |
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| Date Deposited: | 13 Jul 2010 22:27 |
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| Last Modified: | 29 Sep 2011 18:57 |
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| URI: | http://aquaticcommons.org/id/eprint/3749 |
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