9688

• UCREFRP Catalog Number: 9688
• Author: Upper Colorado River Endangered Fish Recovery Program.
• Title: Nonnative Fish Control Workshop Summary, Conclusions, and Recommendations.
• USFW Year: 2002.
• USFW - Doc Type: Lakewood, CO.
• Copyright Material: NO

The strategic plan identified atwo-tiered approach:
1. Basin-wide Level.-This tier prevents introductions of nonnatiyes, reduces
abundance of nonnatives in main channel habitats, and mitigates losses of sport-
fishing opportunities.
2. River-reach Level.-Three high-priority reaches were identified:
a. Yampa River from Deerlodge Park to confluence with the Green River,
b. Green River from Yampa River confluence to Desolation Canyon, and
c. Colorado River from Government Highline diversion to Cataract Canyon.
2.6 Recovery Goals for the Four Endangered Fish Species
On September 10, 2001, the U.S. Fish and Wildlife Service (Service) released draft recovery
goals for the four Colorado River endangered fishes for public review through a Notice of
Availability in the Federal Register (66 FR 47033-47034). These recovery goals provide site-
specific management actions and objective, measurable criteria for downlisting and delisting the
endangered Colorado pikeminnow, humpback chub, razorback sucker, and bonytail. Control of
nonnative fishes is identified as asite-specific management action in each of the four recovery
goals documents. [Note: Final recovery goals were signed by the Service on August 1, 2002, and
the notice of their availability was published in the Federal Register on August 28 (67 FR
55270-55271)].
Five basic aspects of nonnative fish control are identified in the recovery goals with specified
criteria for downlisting and delisting:
1. .Nonnative Fish Stocking Procedures (all four species)
a. Downlisting.-Procedures developed, implemented, evaluated and
revised.
b. Delisting.-Procedures finalized and implemented.
2. .Channel Catfish Control Programs (for humpback chub)
a. Downlisting.-Programs developed and implemented to identify
necessary levels of control in Yampa Canyon, Desolation/Gray Canyons.
b. Delisting.-Identified levels of control attained.
3. Control Programs for Small-bodied Nonnatives (for Colorado pikeminnow,
razorback sucker, bonytail)
a. Downlisting.-Programs in nursery habitats/occupied reaches developed
and implemented to identify necessary levels of control.
b. Delisting.-Identified levels of control attained.
4. Channel Catfish Control Programs (for Colorado pikeminnow, razorback sinker,
bonytail)
a. Downlisting.-Programs in occupied reaches developed and implemented
to identify necessary levels of control.
b. Delisting.-Identified levels of control attained.
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