9439

• UCREFRP Catalog Number: 9439
• Author: Upper Colorado River Endangered Fish Recovery Program.
• Title: Nonnative Fish Control Workshop
• USFW Year: 2002.
• USFW - Doc Type: Summary, Conclusions, and Recommendations.
• Copyright Material: NO

LIST OF FIGURES
Figure Page
1 Fish sampled in 198 ponds along the Upper Colorado River (1997-2001) .......... 14
2 Fish removed from 73 chemically reclaimed ponds along the Upper Colorado
River (1997-2001) ......................................................14
3 Percent reinvasion of fish species into 35 reclaimed ponds along the Upper
Colorado River .........................................................14
4 Percent biomass and numbers of fish collected when draining Old Charlie Wash in 1995
and 1996 ..............................................................19
5 Biomass and numbers of adult and juvenile fish collected from Old Charlie Wash
in 1995 ..............................................................20
6 Number of juvenile carp seined in Green River backwaters, 1986-97 .............. 22
7 Relationship of fish biomass to duration of inundation of Old Charlie Wash in the Middle
Green River, Utah, 1994-95 .................... ..................22
8 Fish species composition of Highline Lake (1999-2000) ........................ 26
9 Fish species composition of Mack Wash and Salt Creek (1999-2000) .............. 26
10 Locations of Elkhead, Stagecoach, and Catamount reservoirs in the Yampa River
drainage, Colorado ......................................................28
11 History of northern pike in the Yampa River drainage .......................... 28
12 Numbers of northern pike captured from the main channel of the Yampa River and
from backwaters in 2000 and 2001 ......................................... 30
13 Numbers of northern pike and Colorado pikeminnow captured by gear type at three
sites on the Yampa River, 1999-2001 ....................................... 31
14 Numbers and ratios of Colorado pikeminnow and northern pike captured in Yampa
River backwaters in 1988-1991, 1999-2000, and 2001 ......................... 32
15 Length-frequency for northern pike in 2000 and 2001, as well as average length of
northern pike on each trip in 2000 and 2001 .................................. 33
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