WSP04685

• File Number: 8240.200.10.B
• Description: Colorado River Threatened-Endangered - UCRBRIP - Organization-Mission - Publications-Reports-Etc
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 3/3/2004
• Author: Unknown
• Title: FY 2003 RIPRAP Assessment - Significant Accomplishments and Shortcomings - 03-03-04
• Water Supply Pro - Doc Type: Report/Study

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X 3,501 6" juvenile bonytail were stocked into the middle Green River by
UDWR (target "= 2,665 8" fish), The lower Green River received 3,043 6"
juvenile bonytail from UDWR (target = 5,330 8" fish); 57% of the
requirements in the integrated stocking plan, CDOW stocked over 13,400
6" bonytail in the middle Green River (target = 2,665 8" fish) in October
2002, Mortalities at CDOW ponds resulted in the loss offish identified
for the 2003 fall stocking, Smaller fish were the result of over crowding,
from holding fish for the previous State stocking plan, Logistics also
played a role with more going into the middle and fewer in the lower
Green River. Under the integrated plan, there is no need for additional
grow out ponds at Wahweap,

X 8,619 10" sub-adult razorback sucker were stocked in the middle Green
River (target = 9,930 12" fish) and 2,364 were stocked in the lower Green
River (target = 9,930 12" fish), Difficulty in retrieving fish from grow out
ponds (Bortherson ponds near Vemal), some ponds not performing as well
(i,e" producing fish of poor condition) and logistics of
holding/transporting fish reduced the numbers that were able to be
stocked,

! Sampling for humpback chub in Desolation/Gray was moved from
summer to fall in FY 03 to reduce fish stress,

Data collected for estimate of Colorado pikeminnow in the Green River.
Catch per unit effort has declined from the initial year of sampling (2000),
but has shown only a modest decrease over the past 3 years,

Y AMP NUTTLE SNAKE RIVERS

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! The gage located above the Little Snake River was moved upstream to
below the confluence with Elkhead Creek to improve river administration,
Also, USGS will pick up the full cost of the Deerlodge gage in FY 04,
Sediment work on the Yampa River has been completed in 2003 and a
draft final report will be available in February, 2004,

! XYampa public meetings were held and comments solicited and
received on draft Yampa management plan, NEPA compliance will be
completed in FY 04, Progress to complete Yampa Management Plan and
PBO continues to be slower than expected, however, completion is
expected by the March 31, 2004,

29,30 IC2b&1D I b ! X Service drafted Little Snake flows and update to Yampa flow
recommendations in FY 03, anticipates completion by 6/04,

30 IIAlc&IlA2c !Guidelines to facilitate fish passage incorporated in Yampa Management
Plan,

2003 RIPRAP Assessment - Page 3