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To connect or not to connect – floods, fisheries and livelihoods in the Lower Rufiji floodplain lakes, Tanzania.

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dc.creator Hamerlynck, Oliver
dc.creator Duvail, Stéphanie
dc.creator Vandepitte, leen
dc.creator Kindinda, kassim
dc.creator Nyingi, Dorothy W.
dc.creator Paul, Jean-Luc
dc.creator Yanda, Pius Z.
dc.creator Mwakalinga, Aggrey B.
dc.creator Mgaya, Yunus D.
dc.creator Snoeks, Jos
dc.date 2016-03-02T06:49:06Z
dc.date 2016-03-02T06:49:06Z
dc.date 2011
dc.date.accessioned 2021-05-03T13:36:41Z
dc.date.available 2021-05-03T13:36:41Z
dc.identifier Hamerlynck, O., Duvail, S., Vandepitte, L., Kindinda, K., Nyingi, D.W., Paul, J.-L., Yanda, P.Z., Mwakalinga, A.B., Mgaya, Y.D. and Snoeks, J., 2011. To connect or not to connect? Floods, fisheries and livelihoods in the Lower Rufiji floodplain lakes, Tanzania. Hydrological Sciences Journal, 56 (8), 1436–1451.
dc.identifier 10.1080/02626667.2011.630002
dc.identifier http://hdl.handle.net/123456789/521
dc.identifier.uri http://hdl.handle.net/123456789/47745
dc.description t For seven years, village-based recorders monitored fish catches and water levels in seven floodplainassociated lakes of the Lower Rufiji, Tanzania. The lakes differ in the number of days and volume of inflows from the river, and thus provide a natural experiment to explore the links between catch composition, income per hour of fishing (IPHF) and hydrological connectivity, and to analyse the response of the users. The fishers adapt their fishing mode and equipment to achieve a rather constant IPHF of between 0.2 and 0.8 US$/fisher/hour. In situations of low connectivity, during a series of drought years, the less well-connected lakes lost many species and became a virtual monoculture of Oreochromis urolepis. Only in one extreme case was average fish size significantly reduced, indicating a high fishing pressure. Catch was therefore highly resilient to shifts toward illegal, non-selective and active fishing techniques. Fish diversity and lake productivity were quickly re-established when the larger lakes reconnected. The potential impacts of changes in the flood hydrograph (through dams, increased abstraction or climate/land-use changes) are assessed, and management options discussed
dc.language en
dc.subject floods
dc.subject floodplains
dc.subject tropical fisheries
dc.subject ecosystem services
dc.subject livelihoods
dc.subject participatory monitoring
dc.title To connect or not to connect – floods, fisheries and livelihoods in the Lower Rufiji floodplain lakes, Tanzania.
dc.type Other


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