Ndebele Murisa Mzime (22 results)

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Taschenbuch. Condition: Neu. Aspects of the phytoplankton ecology in Lake Chivero, Harare, Zimbabwe | Aspects of the ecology of the phytoplankton community of Lake Chivero an investigation of the toxicity of algal blooms | Mzime Ndebele-Murisa | Taschenbuch | 88 S. | Englisch | 2011 | LAP LAMBERT Academic Publishing | EAN 9783844300833 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

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Taschenbuch. Condition: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -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. 88 pp. Englisch.…

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Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - 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.…

Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Ndebele-Murisa MzimeMzime is a Researcher at the University of the Western Cape specializing in Climate change, lakes limnology, fisheries ecology and conservation Biology. At the time this work was conducted she was based in the . …

Taschenbuch. Condition: Neu. This item is printed on demand - Print on Demand Titel. Neuware -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.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 88 pp. Englisch.…

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Taschenbuch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - This book provides an analysis of the ecological conditions and ecosystem goods and services of the Zambezi River Basin (ZRB), the fourth largest river in Africa. Various environmental and anthropogenic factors; inclusive of climate, environmental flows, hydrology, morphology, pollution and land use changes among others and their interactions are considered as drivers of the river ecosystems. The impacts of these drivers on aquatic biota, river ecological integrity, and the livelihoods of surrounding communities are analysed within the socio-economic-policy context. The book goes beyond the usual inventories and basic research by using the comparative research method (CRM) in a trans-disciplinary manner. This CRM analytical approach in this book seeks to interrogate the differences or similarities in socio-economic systems, livelihoods, ecological systems, ecosystem goods and services, their usage and management under the seemingly different cultural, socio-economic conditions expected across boarders that are within the ZRB. The multidisciplinary approach also connects the typical ecological research with social dimensions in a holistic manner. The book therefore, provides empirical and research based evidence to support strategic planning and policy development in the wake of ecological changes that nations and indeed regions such as the ZRB are grappling with while seeking to sustainably manage precious river systems.…

Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. KlappentextrnrnThis book provides an analysis of the ecological conditions and ecosystem goods and services of the Zambezi River Basin (ZRB), the fourth largest river in Africa. Various environmental and anthropogenic factors inclusive of clima.…

Taschenbuch. Condition: Neu. Ecological Changes in the Zambezi River Basin | Mzime Ndebele-Murisa (u. a.) | Taschenbuch | CODESRIA Comparative Research Network | Kartoniert / Broschiert | Englisch | 2021 | Codesria | EAN 9782869787131 | Verantwortliche Person für die EU: Libri GmbH, Europaallee 1, 36244 Bad Hersfeld, gpsr[at]libri[dot]de | Anbieter: preigu Print on Demand. …