Many far-reaching changes have taken place in the Hudson River as a result of human activity, reports a team of researchers in the June issue of emBioScience/em. Zebra mussels and other invasive species have changed the river's ecology-although the influence of the zebra mussels now seems to be waning. A 40 percent increase in the freshwater flow has also had powerful effects, and these seem to be countering the effects of higher temperatures, especially in summer. Pollution ...
via Medindia Health News
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