9705

• UCREFRP Catalog Number: 9705
• Author: Green River Study Plan ad hoc Committee.
• Title: Study plan for the implementation and evaluation of flow and temperature recommendations for endangered fishes in the Green River downstream of Flaming Gorge Dam.
• USFW Year: 2007.
• USFW - Doc Type: Upper Colorado River Endangered Fish Recovery Program
• Copyright Material: NO

GREEN RIVER STUDY PLAN

13

February 2,2007

6. Levee breaches and possibly inlet and outlet control gates may erode unless they are
located strategically to minimize effects of flow.

7. Effects of selenium levels on fish health are not thoroughly understood.

Research Needs

1. Evaluate the effectiveness of the "reset theory."

2. Describe larval drift and entrainment of razorback sucker in floodplains.

3. Assess growth and survival of razorback sucker and bonytail in floodplains.

4. Evaluate the effects of nonnative fishes to endangered fishes in floodplains.

Recommendations

1. Coordinate management of floodplain restoration and management with Ouray National
Wildlife Refuge.

2. Continue to monitor, evaluate, and manage restored floodplains.

3. Continue stocking hatchery razorback sucker and bonytail to evaluate floodplain habitats.

4. Evaluate characteristics of water and larval entrainment in floodplains.

1.2.3 Other Documents

In addition to the authority and guidance documents (Sections 1.2.1 and 1.2.2), the
following are examples of other documents that were used to further evaluate studies and how
well those studies address the flow and temperature recommendations.

· Procedures for Stocking Nonnative Fish Species in the Upper Colorado River Basin
(Upper Colorado River Endangered Fish Recovery Program 1996).

· Nonnative fish management and control workshops held annually since 2002.

· Protocols for Colorado Pikeminnow and Humpback Chub Population Estimates (Upper
Colorado River Endangered Fish Recovery Program. 2002b).

· Evaluation of Population Estimates for Colorado Pikeminnow and Humpback Chub in
the Upper Colorado River Basin (Upper Colorado River Endangered Fish Recovery
Program 2005b).

· An Evaluation of Ecosystem Restoration and Management Options for the Ouray
National Wildlife Refuge, Utah (Heitmeyer and Fredrickson 2005).