To connect or not to connect? Floods, fisheries and livelihoods in the Lower Rufiji floodplain lakes, Tanzania

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dc.contributor.authorHamerlyncka, Olivier
dc.contributor.authorDuvail, Stéphanie
dc.contributor.authorVandepittec, Leen
dc.contributor.authorKindindad, Kassim
dc.contributor.authorNyingie, Dorothy W.
dc.contributor.authorPaulb, Jean-Luc
dc.contributor.authorYanda, Pius Z.
dc.contributor.authorMwakalinga, Aggrey B.
dc.contributor.authorMgaya, Yunus D.
dc.contributor.authorSnoeksi, Jos
dc.date.accessioned2016-03-11T09:01:44Z
dc.date.available2016-03-11T09:01:44Z
dc.date.issued2011-12
dc.descriptionFull text available at http://www.tandfonline.com/doi/pdf/10.1080/02626667.2011.630002en_US
dc.description.abstractFor seven years, village-based recorders monitored fish catches and water levels in seven floodplain-associated 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.en_US
dc.identifier.citationHamerlynck, 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), pp.1436-1451.en_US
dc.identifier.doi10.1080/02626667.2011.630002
dc.identifier.issn0262-6667
dc.identifier.urihttp://hdl.handle.net/123456789/858
dc.language.isoenen_US
dc.publisherTaylor & Francis Groupen_US
dc.subjectFloodsen_US
dc.subjectRufiji Lakeen_US
dc.subjectFloodplainsen_US
dc.subjecttropical fisheriesen_US
dc.subjectecosystem servicesen_US
dc.subjectLivelihoodsen_US
dc.subjectparticipatory monitoringen_US
dc.subjectcruesen_US
dc.subjectplaines inondablesen_US
dc.titleTo connect or not to connect? Floods, fisheries and livelihoods in the Lower Rufiji floodplain lakes, Tanzaniaen_US
dc.typeJournal Article, Peer Revieweden_US
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