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Old 03-26-2010, 04:00 PM   #1
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Default Fish release rejuvenates species

Fish release rejuvenates species
By David Demille • March 18, 2010

...Crews completed work on a six-foot high concrete "fish barrier" in November, designed to block invasive species from Lake Mead and its tributaries from climbing into the Southern Utah section of the river. It was the last such structure planned in a series of dams that have so far done the job, Meismer said.

Once the entrance is cut off, officials use Rotenone, a fish poison, to kill off the invasive species. Then the natives are re-introduced.

Meismer said it takes some time for species that have been to the brink to get reestablished and left to thrive, but officials are optimistic.
The tendency of man's nature to good is like the tendency of water to flow downwards.
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