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

Table AI. Continued.
Studies
Project 22f (continued)

Management of
easements acquired for
the Recovery Program
(Project C-6-EM)

Annual fall monitoring
for Colorado
pikeminnow YOY
(project 138)

Abundance estimates
for Colorado
pikeminnow in the
Green River Basin
(project 128)

Study Goal and Objectives

Objectives
1. To determine timing and duration of spawning by razorback suckers and presence and
abundance of larvae in the system as measured by capture of larvae in light traps.
2. To determine timing and duration of spawning by Colorado pikeminnow and presence and
abundance of larvae in the system as measured by capture of larvae downstream of spawning
areas in the lower Yampa River.
Goal
To monitor and manage easements acquired by the Recovery Program for the purpose of
supporting and sustaining recovery of the endangered fishes
Objectives
1. To restore, enhance, and/or protect floodplain habitats to benefit endangered fishes.
2. To maintain positive relationships with Colorado River Wildlife Management Area
landowners.
Goal
Determine size and relative numbers ofYOY Colorado pikeminnow at the end of their first
growing season to complement larval and juvenile sampling data.
Objectives
1. Using new and existing data, determine relationship between larval and YOY Colorado
pikeminnow CPE abundance estimates with respect to flow and temperature.
2. Using new and existing data, develop predictive model that relates larval and YOY
Colorado pikeminnow abundance.
3. Using new and existing data, determine relationship between YOY and juvenile Colorado
pikeminnow CPE abundance estimates with respect to YOY size, flow, and temperature.
4. Using new and existing data, develop predictive model that relates YOY and juvenile
Colorado pikeminnow abundance.
Goal
Obtain an accurate (unbiased) and reliable (precise) estimate of the adult population abundance
and survival of Colorado pikeminnow that occupy the Green River study area.
Objectives
1. Complete a minimum of three sampling passes through the five Green River Basin reaches
listed to capture sub-adult and adult Colorado pikeminnow:
a) Green River between the confluence of the White River upstream to the lower end of
Whirlpool Canyon (Le., upper Rainbow Park).
b) White River between the confluence of the Green River upstream to Taylor Draw Dam,
c) Yampa River between Deerlodge Park and Craig, excluding Cross Mountain Canyon,
d) Green River from the White River confluence downstream to near Green River, Utah, and,

Status

Ongoing

Ongoing

Ongoing,
periodic

FY

1999 - TBD

1986 - 2008

2000 - TBD

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