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… mollusc diversity, and electric power generation; the water hyacinth (Eichhornia crassipes) blocking waterways, … nutrient levels in the lake, promoting infestation by water hyacinths. - ! e Nile perch’s palatable bone-free white … adhering to vehicles, machinery and animals, as well as by water and wind. Because of its devastating e$ ect on crop …

… 2005a. Ecosystems and human well-being: wetland and water synthesis. World Resources Institute, Washington, DC. … provide tremendous economic benefits, for example: � Water supply (quantity and quality); � Fisheries (over two … and can precipitate outbreaks of disease. � Food shortage or imbalance can also lead to loss of condition and …