Changes of phytoplankton communities in Lakes Naivasha and Oloidien, examples of degradation and salinization of lakes in the Kenyan Rift Valley

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dc.contributor.authorBallot, A.
dc.contributor.authorKotut, Kiplagat
dc.contributor.authorNovelo, E.
dc.contributor.authorKrienitz, L.
dc.date.accessioned2015-07-15T13:33:17Z
dc.date.available2015-07-15T13:33:17Z
dc.date.issued2009
dc.descriptionDOI 10.1007/s10750-009-9847-0en_US
dc.description.abstractIncreasing degradation of the water quality, caused by overuse and salinization, leads to considerable changes of the phytoplankton composition in Kenyan Rift Valley lakes. Exemplarily, the phytoplankton communities and biomasses of deteriorating freshwater Lake Naivasha and salinizing Lake Oloidien were studied between 2001 and 2005, accompanied by physico-chemical measurements (pH, total phosphorus and nitrogen, alkalinity, conductivity). Over the last three decades, the ecology of these two water basins has been subjected to dramatic changes, caused by excessive use of water and catchment area by man. In L. Naivasha a shift in the dominance of coccoid cyanobacteria towards dominance of Chlorophyceae (Botryococcus terribilis) was observed. Lake Oloidien exhibited a shift in the dominance of coccoid Chlorophyceae towards dominance of cyanobacteria (Arthrospira fusiformis, Anabaenopsis elenkinii). Phytoplankton findings and chemical data demonstrate that L. Naivasha has developed towards a eutrophic freshwater lake while L. Oloidien has progressed towards a hypereutrophic alkaline-saline lake.en_US
dc.identifier.citationHydrobiologia vol. 632 pp:359–363en_US
dc.identifier.urihttp://hdl.handle.net/123456789/217
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.subjectLake Naivashaen_US
dc.subjectLake Oloidienen_US
dc.subjectEutrophicationen_US
dc.subjectSalinizationen_US
dc.titleChanges of phytoplankton communities in Lakes Naivasha and Oloidien, examples of degradation and salinization of lakes in the Kenyan Rift Valleyen_US
dc.typeArticleen_US
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