Fossil Creek

Earth Notes
12:00 am
Wed February 1, 2012

Earth Notes: Exploring Fish Ecology in the Colorado River Drainage

Over the past hundred years, people have introduced dozens of non-native fish species into the Colorado River and its tributaries. During that time, populations of native fish species have dropped, in some cases dramatically. It’s easy to guess at the causes of native species decline, like predation and competition for food. But it’s far more difficult to prove.

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