Lake Victoria Fisheries Resources : Research and Management in Tanzania

Annotation This book synthesises the historical trends of the lake fisheries, the lake ecology, biology and biodiversity, socio-economics, stock assessment, aquaculture, fish quality assurance, environmental quality and management of the fisheries resources. The evolution of fisheries in Lake Victoria has undergone dramatic changes over the last few decades, leading to both ecological and socio-economic consequences. The lake has changed from one dominated by haplochromines in the 1950s, to one currently dominated by Nile perch, 'dagaa' (Rastrineobola argentea) and Nile tilapia. These changes have mainly been driven by the introduction of the predatory Nile perch in the lake, eutrophication due to increased human activities in the catchment, increased human population growth, overfishing and changes in the global climate system. This work should therefore be a particularly useful reference to fisheries scientists and managers, potential investors, students and other professionals who may be interested in the Lake Victoria fisheries Front Matter ....Pages i-xii Introduction (Yunus D. Mgaya)....Pages 1-9 Historical Perspectives and Trends in Fisheries Research in Tanzania (E. F. B. Katunzi, P. O. Onyango, Shigalla B. Mahongo, M. A. Kishe-Machumu, J. C. van Rijssel, R. J. Kayanda et al.)....Pages 11-35 Environmental Changes in the Tanzanian Part of Lake Victoria (I. A. Kimirei, M. Semba, C. Mwakosya, Yunus D. Mgaya, Shigalla B. Mahongo)....Pages 37-59 Fish Biology and Life History Indicators (E. F. B. Katunzi, Yunus D. Mgaya, O. C. Mkumbo, S. M. Limbu)....Pages 61-79 Biodiversity Indicators: Plankton and Macroinvertebrates in Lake Victoria, Selected Satellite Lakes and Rivers (Yunus D. Mgaya, S. M. Limbu, C. V. Lugomela, I. A. Kimirei, R. J. Kayanda, G. W. Ngupula)....Pages 81-106 Stock Assessment of Commercial Fish Species of Lake Victoria (R. J. Kayanda, A. I. Chande, Yunus D. Mgaya, E. Mlaponi, O. C. Mkumbo)....Pages 107-135 Aquaculture and Fisheries Extension (A. P. Shoko, Yunus D. Mgaya, S. M. Limbu, R. B. Hoza)....Pages 137-160 Socio-economic Characteristics of the Lake Victoria Fisheries (P. O. Onyango)....Pages 161-184 Historical Trends in Fisheries Management (R. B. Hoza, Yunus D. Mgaya, P. O. J. Bwathondi)....Pages 185-204 Financing Mechanisms for Lake Victoria Fisheries Management (E. J. Mosha, Shigalla B. Mahongo, R. B. Hoza, Yunus D. Mgaya)....Pages 205-217 Co-management of Lake Victoria Fisheries (A. Mahatane, Yunus D. Mgaya, R. B. Hoza, P. O. Onyango, M. Semba)....Pages 219-239 Fisheries Statistics for Lake Victoria, Tanzania (F. Sobo, Yunus D. Mgaya, R. J. Kayanda, M. Semba)....Pages 241-253 Fish Quality Assurance (S. A. Lukanga, Yunus D. Mgaya)....Pages 255-274 Overall Conclusions and Recommendations (Yunus D. Mgaya)....Pages 275-279 Back Matter ....Pages 281-287