The effect of water Hyacinth, Eichhornia Crassipes, infestation on phytoplankton productivity in Lake Naivasha and the status of control
Mironga, John Momanyi
Ministry of Water and Irrigation, Nairobi (Kenya)
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The paper presents data collected in an assessment of effects of water hyacinth infestation on phytoplankton productivity in Lake Naivasha, Kenya. A summary of the status of control and strategies for the future is given. The ecological effects of water hyacinth, Eichhornia Crassipes, on Lake Naivasha have received little attention compared to the large body of work available on the weed’s socioeconomic impact on the country’s water ways and methods for its removal. This study was conducted to determine if water hyacinth infestation in Lake Naivasha affects phytoplankton productivity. Several sampling stations were set up in the lake at sites where the floating mats of the weed were present and sites where the weed was absent. Phytoplankton chlorophyll-a concentration and dissolved oxygen were measured at each station and used as proxies for phytoplankton productivity. The study findings show that phytoplankton productivity is reduced when water hyacinth is present, suggesting that the.....
JournalProceedings of the 11th World Lakes Conference - Volume 2
Spatial CoverageLake Naivasha, Kenya
Conference Name11th World Lakes Conference
Conference PlaceNairobi (Kenya)
CitationOdada, Eric & Olago, Daniel O. & Ochola, Washington & Ntiba, Micheni & Wandiga, Shem & Gichuki, Nathan & Oyieke, Hilda (Ed.) Proceedings of the 11th World Lakes Conference: vol. 2, 2006. p. 573-579.
- Conference Papers