WSPC05696

• File Number: 8240.300.31.A
• Description: Colorado River Threatened-Endangered Species - Recovery Program - San Juan - Project Description
• State: CO
• Basin: San Juan/Dolores
• Water Division: 5
• Date: 2/1/1995
• Author: Unknown
• Title: San Juan River Basin - Recovery Implementation Program - Long Range Plans - February 1995
• Water Supply Pro - Doc Type: Report/Study

D01500.

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3.2. RECOVERY AND CONSERVATION OF COLORADO SQUAWFISH IN
THE SAN JUAN RIVER BASIN AS PART OF THE NATIVE FISH
COMMUNITY.

3.2.1. REPRODUCTION

Spawning of sufficient frequency and magnitude must occur to
produce adequate numbers of offspring for recruitment to the
adult population. Conditions must be provided .for annual
reproduction. Reproduction will be documented by capture of
young-of-year specimens.

3.2.2. RECRUITMENT

Regular recruitment of individuals to the reproductively active
population is required for recovery and conservation.

3.2.3. RANGE AND ABUNDANCE

Range and abundance must be increased above current levels
to secure occupation of designated critical habitat and other
suitable areas.

3.2.4. RESTORE POPULATIONS

Improve habitat conditions to allow existing populations to
respond to these habitat changes. If studies indicate remnant
populations are too small or isolated to respond to habitat
modifications then explore additional management options,
including augmentation, to expand current wild populations.

3.3. RECOVERY AND CONSERVATION OF RAZORBACK SUCKER IN THE
SAN JUAN RIVER AS A VIABLE PART OF THE NATIVE FISH
COMMUNITY.

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3.3.1. AVOID EXTIRPATION

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Preclude further adverse modification of razorback sucker
. habitats and establish refugia..
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3.3.2.

RESTORE POPULATIONS

If studies indicate augmentation is feasible, stock razorback
suckers of appropriate lineage to establish a viable population in
San Juan River.

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