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We compared the nutrient dynamics of three lakes that have been heavily influenced by point and non-point source pollution and other human activities. The lakes, located in Japan (Lake Kasumigaura), People's Republic of China (Lake Donghu), and the USA (Lake Okeechobee), all are relatively large (>30 km2), very shallow (<4 m mean depth), and eutrophic. In all three lakes we found strong interactions...
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