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 38 February 2, 2007
3.5 Recommended RIPRAP Revisions
Study Plan recommendations (Table 4) for the Green River Action Plan: Mainstem
section of the RlPRAP will be incorporated when the RlPRAP is reviewed in spring 2007.
Table 4. Recommended changes to the Green River Action Plan: Mainstem section of the
RlPRAP.
OUT-
ACTIVITY WHO STATUS 07 08 09 10 11 12 YEARS
!.D. Evaluate and revise flow regimes to Program Ongoing X X X X X X X
benefit endan ered fish 0 ulations.
1.0.1. Oevelop study plan to evaluate flow FWS/BRI Pending X
and temperature recommendations. WAPA
Evaluate survival of young and
1.0.l.a movement of subadult razorback TBO New Start X X X X X
suckers from floodplains into the
mainstem in response to flows.
Evaluate recent peak flow studies
1.0.l.b. related to floodplain inundation and
entrainment oflarval razorback
suckers.
Complete final report on entrainment UDWR/
!.D.l.b.(l) of larval razorback suckers in LFL Ongoing X
flood lains.
Monitor changes in the magnitude,
!.D.l.b.(2) timing, and size distribution of USGS Ongoing X X
sediment
Synthesize physical and biological
data from recent peak flow studies
!.D.I.b.(3) related to floodplain inundation and TBO New Start X X
entrainment of larval razorback
suckers.
Monitor larval razorback suckers in
1.0. I.e. mainstern, and synthesize
information on drift as related to
flows and other conditions.
!.D.1.c.(\ ) Conduct annual monitoring of larval FWSILFL Ongoing X X X X X X X
razorback suckers.
!.D.l.c.(2) Analyze historic monitoring data TBO New Start X X
Determine relationship of backwater
1.0.l.d. development to sediment availability TBO New Start X X
and eak flows in Reach 2.
Evaluate effect of base flow
1.0. I.e. variability on backwater
maintenance and uali
LD.l.e.(l) Conduct annual monitoring of larval LFL Ongoing X X X X X X X
Colorado ikeminnow.
LD.l.e.(2) Monitor age-O Colorado UDWR Ongoing X X X X X X X
ikeminnow in backwaters.
1.0.l.e.(3) Evaluate response of native fish to UDWR Ongoing X X X X X X X
nonnative redator removal
LD.l.e.(4) Integrate biological and physical TBO New Start X X
data on backwaters.
Determine influence of flow and
1.0.1.f. temperature recommendations on LFUFWS Ongoing X X X
nonnative fish life history in lower
Reach I and u er Reach 2.
Oetermine spillway entrainment of CDOWI
1.0.l.g. nonnative fish at Flaming Gorge UDWR Ongoing X X X
Oam.
Integrate and synthes ize reports for
1.0.2. evaluation and recommended Program New Start X X X
revision of flow and temperature
recommendations.