|
OceanDocs >
Africa >
Kenya >
Kenya Marine and Fisheries Research Institute >
Conference Papers >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/1834/1174
|
| Title: | Multigear fishery of Nile perch (Lates niloticus) in the Winam Gulf of Lake Victoria: with special reference to mortality, selection and catch/effort data |
| Authors: | Manyala, J.O.
Rabuor, C.O. |
| ASFA Terms: | Catch/effort
Exploitation
Gillnets
Lake fisheries |
| Issue Date: | 1994 |
| Publisher: | ICIPE SCIENCE |
| Citation: | Okemwa, E.; Wakwabi, E.O.; Getabu, A. (Ed.) Proceedings of the Second EEC Regional Seminar on Recent Trends of Research on Lake Victoria Fisheries, NAIROBI : ICIPE SCIENCE, p. 67-72 |
| Abstract: | A survey of multigear fishery of Nile perch (Lates niloticus) in the
Winam Gulf of Lake Victoria indicates that total mortality coefficient
(Z) determined from longline fishery using hook number 6 was double
that of hook number 7. Total mortality coefficient determined from
gillnets and beachseines were lower than those of hooks. The catch per
unit effort (C/f) measured using different criteria indicated an
increase for all gears in 1990 as compared to 1989 except for
gillnets. A two-fold increase in unit effort (f) increased the C/f for
mosquito seines by only 30%. The typical exponential decay of C/f with
increasing f of exploited stock in equilibrium was lacking in the case
of Nile perch in the Winam Gulf. |
| URI: | http://hdl.handle.net/1834/1174 |
| ISBN: | 9290640789 |
| Appears in Collections: | Conference Papers
|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
|
