Browsing by Author "Nakiyende, H."

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    Can protected areas work in artisanal fisheries of Uganda? The case of Lakes Edward-George and Kazinga Channel
    (African Journals Online (AJOL), 2014) Bassa, S.; Mbabazi, D.; Taabu-Munyaho, A.; Nakiyende, H.; Muhumuza, E.; Nsega, M.; Amiina, B.; Rukuunya, E.; Bakunda, A.; Balirwa, J.S.
    The Ecosystem Approach to Fisheries Management agitates for provision of Marine Protected Areas (MPAs) which seem to be effective in developed countries. However, efforts to control artisanal fisheries through protection have not been adequately assessed. The Uganda portion of Lake Edward, Kazinga channel and half of Lake George are located in Queen Elizabeth National Park, controlled and managed by the Uganda Wild Life Authority (UWA). Three of the seven recognised landing sites on Lake George occur outside the park, and by proxy are unprotected. The objective of this study was to compare fishing efforts, gears and fishery yield of the protected and unprotected lake areas and landing sites of Uganda during 2011 and 2013. Fishing effort data sets were generated through periodic census of fishing inputs, in addition to the yield. Of the total annual fish production (9,200 metric tonnes) from the Edward-George system on the Uganda portion, protected areas contributed 87% and were markedly higher than the unprotected area (13%). The number of illegal gillnets in the protected area increased by 88% relative to 12% in the unprotected area, over the same period. The principle of MPAs in conservation in artisanal fisheries may not be effective and achievable in these regions.
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    Ecosystem Integrity of the Upper Victoria Nile in East Africa based on Habitat and Fish Species Biotic Indices
    (Uganda Journal of Agricultural Sciences, 2019) Bassa, S.; Muhoozi, L. I.; Olwa, R.; Nakiyende, H.
    Riverine ecosystems are continuously been compromised by human activities resulting in threatening their integrity. In this study, integrity of Upper Victoria Nile River was assessed using habitat quality and fish biotic indices. Experimental gillnetting was done bi-annually in 9 stations along the river from 2008 to 2018. Nine habitat metrics were used to estimate habitat quality index at every sampling station. Fish sampled, were sorted, identified to species level, and weighed. Counts of introduced and indigenous as well as tolerant and intolerant species were recorded to generate species richness. A total of 10.642 fish, 65 species belonging to nine families were recorded. Dominant species were Lates niloticus 62.79%, Oreochromis niloticus 23.51%, Mormyrus kannume 13.64%; other species were ≤0.06%. Tolerance and trophic guild showed carnivores (61.5%), omnivores (21.5%) and detrivores (16.9%).Mean habitat quality index, total fish catch and fish-based index of biotic integrity varied among stations with highest record of 26.6±6.9, 289.2±51.8 and 30.6±7.9 at sampling station (ST4) respectively. The lowest was 19.4±7.3, 93.1±13.2 and 26.7±6.8 at sampling station (ST2) respectively. On a spatial basis, indices recorded significant differences among stations (p < 0.05). Results indicated a fair fisheries biodiversity that need better conservation management of habitat type of the upper Nile.