Selectivity of gillnets for Nile perch, Lates niloticus (L.), in Lake Victoria, Kenya.
Four fleets of hanging coefficients 0.2, 0.4, 0.6 and 0.8 were used to determine size selectivity and selection factors of Nile perch populations. There was a linear relationship between mesh size and modal length of capture. Positively skewed length frequency distributions were found for smaller mesh sizes with entanglement becoming more prominent in mesh sizes above 101 mm. Nets of 114 to 141 mm stretched mesh yielded higher economic returns than small meshes, the catch consisting of few largefish.
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| Main Author: | |
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| Format: | Report Section biblioteca |
| Language: | English |
| Published: |
Lake Victoria Fisheries Project
1999
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| Subjects: | Gillnets, Fishery management, Stock assessment, Artisanal fishing, |
| Online Access: | http://hdl.handle.net/1834/7179 |
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