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

14

February 2,2007

· Final Programmatic Biological Opinion on the Management Plan for Endangered Fishes
in the Yampa River Basin (U.S. Fish and Wildlife Service 2004).

· Consideration of Site-specific Floodplain Inundation Thresholds in Implementing Peak
Flow Magnitude and Duration Recommendations in the Middle Green River, Utah
(Hayse et al. 2005).

2.0 METHODS

2.1 Steps in Study Plan Development

The following steps were taken to develop this plan (Figure 3).

1. Anticipated effects or uncertainties were identified from the authority or guidance
documents described in Sections 1.2.1 and 1.2.2.

2. Ongoing or pending studies were identified that were related to each anticipated effect or
uncertainty .

3. With input from the principal investigators, goals and objectives of each study were
examined to determine how well the studies address an anticipated effect or uncertainty.

4. Important information needs associated with each anticipated effect or uncertainty were
identified and revised ongoing or new studies were recommended to fill those needs.

5. Authority, guidance, and other documents were used to screen information needs and to
prioritize studies.

6. Recommendations were formulated for the Recovery Program to incorporate into the
RlPRAP.

2.2 Linkage of Studies to Anticipated Effects and Uncertainties

This Study Plan identifies primary and supporting monitoring or research studies that
evaluate to varying degrees the anticipated effects or uncertainties related to the flow and
temperature recommendations. The anticipated effects and uncertainties are identified in
Appendix Tables AI-A3 for each reach of the Green River and for spring peak and base flow
periods. The language for the general flow and temperature recommendations was taken from
Muth et al. (2000). The anticipated effects were taken from the flow and temperature
recommendations. Uncertainties were taken from the flow and temperature recommendations,
BA, BO, FEIS, ROD, and various other documents.