Here you go: http://en.wikipedia.org/wiki/Eutrophication http://en.wikipedia.org/wiki/Eutrophication Ecosystems in general are chaotic and extremely sensitive,

Here you go: http://en.wikipedia.org/wiki/Eutrophication http://en.wikipedia.org/wiki/Eutrophication Ecosystems in general are chaotic and extremely sensitive, and aquatic ones more so afaik.