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STATUS OF THE FISHERIES OF KYOGA BASIN LAKES

CONTENTS. Data sourcesDiversity of fishes in the Kyoga basin lakesFishing effort distribution of landing sites and fishing boatsNumbers of Fishers, Numbers and composition of Fishing gearsFish catches Trends of catch ratesAnnual catch estimates and The gross beach value of the catchesCon

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STATUS OF THE FISHERIES OF KYOGA BASIN LAKES

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    1. STATUS OF THE FISHERIES OF KYOGA BASIN LAKES Levi Muhoozi S.B. Wandera, D. Mbabazi, G. Namulemo, J. Balirwa, W. Nkalubo S. Bassa, E. Muhumuza, M. Nsega, Byekwaso, M. Okwakol

    2. CONTENTS Data sources Diversity of fishes in the Kyoga basin lakes Fishing effort – distribution of landing sites and fishing boats Numbers of Fishers, Numbers and composition of Fishing gears Fish catches Trends of catch rates Annual catch estimates and The gross beach value of the catches Conclusions and recommendations

    3. Data sources Multi-mesh gillnet surveys in various lake habitats to establish the diversity and abundance of fishes Fisheries censuses (Frame surveys) to determine quantity and distribution of fishing capacity/effort Catch assessment surveys at landing sites to estimate quantity and value of catches

    4. Distribution of Fish landing sites in Kyoga lakes FS-2008

    5. Coverage by Catch Assessment surveys 2008 - 2010

    6. Trends in fish species diversity, Lake Kyoga and Kwania 1928 to 2010

    7. Abundance of Major species

    8. No. of species at different habitats in Kyoga system

    9. Population structure of Nile perch & Nile tilapia in Lakes Kyoga and Kwania (2006 – 2010)

    10. Trends of Nile perch population mean size Lake Kyoga: 1988 - 2010

    11. Trends Nile tilapia population mean size L. Kyoga 1988 - 2010

    12. Changes in size at first maturity of Nile perch (cm, Total Length) in Lakes Victoria and Kyoga.

    13. Trend of size at first maturity of Nile tilapia (cm, Total Length) in Lakes Victoria and Kyoga.

    14. Nile perch Gillnet selectivity L. Kyoga & L. Kwania

    15. Gillnet selectivity Nile tilapia L. Kyoga & L. Kwania

    16. Gillnet mesh size composition (FS-2008) Lake Kyoga <5” gillnet mesh size = 54,802 (56%) =5” gillnet mesh size = 42,962 (44%)

    17. Proportion gillnets under size (<5 inch) by district FS-2008

    18. Kyoga lakes with beach/boat seines FS-2008

    19. Distribution of boat seines in districts FS-2008

    20. Nile perch size composition of boat seine catches L. Kwania

    21. Trends of Total catches (points) and fishing boats (bars) for lakes Kyoga & Kwania

    22. Catch rates of major fishes in Kyoga & Kwania

    23. Visible impacts of recent management interventions in Lake Kyoga tilapia fishery

    24. Annual catch estimates

    25. Current gross value of the Kyoga basin fisheries by district

    26. 26 Major observations High fish diversity was associated with the highly vegetated small lakes where disturbance especially by rice cultivation is threat. The size at first maturity of Nile perch and tilapia has reduced which illustrates reproductive stress due to high fishing pressure in Kyoga lakes. Persistent use of illegal gears (e.g. boat seines and under size gillnets) and uncontrolled fishing inputs (boats, gears) have contributed to unsustainable fishing. Potential fishery recovery under good management has been demonstrated by recent interventions in central L. Kyoga (Kayunga, Amolatar & Nakasongola), where more than twofold increase in tilapia catch rates was achieved in 4-6 months by April 2010.

    27. Major observations Results of gillnet selectivity indicated that 4˝inch caught only mature Nile tilapia and can be suitable for harvest of tilapia in lakes and areas where Nile perch is not an important fishery. Change of legislation on minimum gillnet mesh size can be considered in formulation of lake specific fisheries management plans.

    28. Recommendations To Recover the Kyoga basin fisheries, control of fishing effort should be considered priority: Eradication of illegal destructive fishing gears (boat seines, undersize and monofilament gillnets) and capture of immature fish Limiting fishing time e.g. outlawing day time fishing Controlling entry and number of fishing boats, gears and fishers. National and Local governments; and co-management institutions (BMUs, LAKIMO) need to take lessons from recent enforcement efforts in L. Kyoga and spread efforts to all areas

    29. Recommendations There is need for increased investment in efforts to reduce fishing effort at national and local levels Management measures need to be customized to specific water bodies through water-body specific management plans There is need for continuation of systematic resource monitoring of the Kyoga basin lakes to inform fishery recovery and development efforts

    30. THANK YOU

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