9383

• UCREFRP Catalog Number: 9383
• Author: SWCA, I.
• Title: Recovery Goals for the four Colorado River Endangered Fish Species.
• USFW Year: 2000.
• USFW - Doc Type: Logan.
• Copyright Material: NO

There has been no historical evidence, nor are there currently, any humpbac

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4. Maintain unimpeded passage within Desolation/Gray Canyons as well as existing
connections and passage with other humpback chub populations.
ampa River
1. Provide and legally protect flows necessary to recover and conserve the humpback
chub.
2. Control nonnative fish releases and escapement into the main river, flood plain,
and tributaries.
3. 1m t nonnative fish control in Yampa Canyon, as needed.
4. d modify, if necessary, state and federal hazardous spills emergency
response p ans to insUre adequate protection from spills, including prevention and
quick response to spills.
5. Maintain unimpeded passage within Yampa Canyon as well as existing
connections and passage with other humpback chub populations.
Cataract Canvon
1. Provide and legally prote ows necessary to recover and conserve the humpback
chub.
2. Control nonnative fish releases and escapement into the main river, flood plain,
and tributaries.
3. Maintain unimpeded passage within Cataract Canyon as well as existing
connections and passage with other humpback chub populations.
Lower Colorado River Basin

At least two actions have been identified to increase t bers, range and/or
populations in the lower basin. One action is to modify the temperature of released water from
Glen Canyon Dam to increase the range of the current population upstream and reduce the
interaction with nonnative salmonids. Another action is to potentially locate and establish a
second population within the Grand Canyon reach of the lower Colorado River. However,
recovery criteria for humpback chub in the Lower Colorado River Basin are yet to be determined.
San Juan River Basin

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