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Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Ecological science, the Biosphere

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Aspects of the Phytoplankton Ecology in Lake Chivero, Harare, Zimbabwe (Paperback) Loot Price: R1,331
Discovery Miles 13 310
Aspects of the Phytoplankton Ecology in Lake Chivero, Harare, Zimbabwe (Paperback): Mzime Ndebele-Murisa
Aspects of the Phytoplankton Ecology in Lake Chivero, Harare, Zimbabwe (Paperback): Mzime Ndebele-Murisa

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Aspects of the Phytoplankton Ecology in Lake Chivero, Harare, Zimbabwe (Paperback)

Mzime Ndebele-Murisa

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Loot Price R1,331 Discovery Miles 13 310 | Repayment Terms: R124 pm x 12*

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Lake Chivero was built in 1952 to supply drinking water to the city of Harare and became eutrophic due to discharges of sewage effluent. Algal blooms have become a major problem whilst cases of gastroenteritis and liver cancer have increased dramatically over the last decades. To evaluate the potential health threat, the phytoplankton community in the reservoir was investigated. Inorganic nutrient (2.4-3.0 mg P l-1 and 1.4-3.2 mg N l -1) and conductivity (1433-368 mS cm-1) as well as phytoplankton biomass concentrations (0.8-7.6 mgl-1) were very high. Primary production had increased significantly since 1979, suggesting that the eutrophication problem has increased. Microcystis dominated the phytoplankton community with a low biodiversity (0.92 bits ind.-1). Strains of Microcystis from the reservoir were tested for toxicity and contained high concentrations of microcystin indicating a highly serious health threat. Moreover, the same algal blooms may explain the occurrence of fish kills in the lake that was observed in 1996. A reduction of nutrient inputs in the reservoir is urgently required to prevent the occurrence of toxic algal blooms in the future.

General

Imprint: Lap Lambert Academic Publishing
Country of origin: Germany
Release date: 2011
First published: 2011
Authors: Mzime Ndebele-Murisa
Dimensions: 229 x 152 x 5mm (L x W x T)
Format: Paperback - Trade
Pages: 88
ISBN-13: 978-3-8443-0083-3
Barcode: 9783844300833
Categories: Promotions
Books > Science & Mathematics > Biology, life sciences > Life sciences: general issues > Ecological science, the Biosphere
LSN: 3-8443-0083-X

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