Interaction of water quantity with water quality: the Lake Chapala example |
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Authors: | Owen T Lind LO Dávalos-Lind |
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Institution: | (1) Limnology Laboratory, Biology Department, Baylor University, USA;(2) The Chapala Ecology Station, Universidad Autónoma de Guadalajara and Baylor University, Waco, TX, 76798, U.S.A |
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Abstract: | Water quality may be significantly determined by water quantity. Lake Chapala, México is a large lake beset with numerous water quality problems. The decline in water volume over the past 20 years, a serious problem itself, is associated with causing or enhancing several problems of quality. Five such problems are explored herein. These are: extensive infestations of water hyacinth (Eichhornia crassipes), a declining native fishery, light limitation of phytoplankton production at the base of the food chain, shallow-water algal blooms resulting in water supply treatment problems, and the presence of toxic metals in the harvested and sold fishes. |
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Keywords: | water quality water quantity pollution turbidity Eichhornia phytoplankton |
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