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Dramatic Decline In Native Fish Numbers Monday, July 14, 2008 - Ehud Rattner Home >> Headlines >> Environment   
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Damming of the Colorado River over the last century, alongside introduction of game fish species, has led to an extensive decline in numbers of native fish whilst introduced species have flourished. Scientists have found that physical changes which occur to a river when it is dammed have had an adverse effect only on native fish, due to differences in their life histories. (source: sciencedaily.com)
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