My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
7083
CWCB
>
UCREFRP
>
Public
>
7083
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
7/14/2009 5:02:29 PM
Creation date
5/22/2009 6:55:24 PM
Metadata
Fields
Template:
UCREFRP
UCREFRP Catalog Number
7083
Author
Ferriole, S.
Title
Wildlife Resource Information System
USFW Year
1988.
USFW - Doc Type
Humpback Chub Mapping Criteria for the Colorado, Dolores, Gunnison, Green, White, and Yampa Rivers.
Copyright Material
NO
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
32
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
Show annotations
View images
View plain text
<br />COLORADO RIVER <br />44RIS SCENARIO FOR HUMPBACK CFFUFI <br />(February 1987) - <br />The Colorado River originates in Rocky Mountain National Park on <br />the Continental Divide in north-central Colorado. It flows <br />southwestward for about 479 km (298 mi) to its confluence with the <br />Green River in Utah.(Carlson and Carlson 1982). <br />Mainstem Colorado River flows are reduced by massive water <br />diversions and consumption (Joseph et al. 1977), and historic <br />seasonal flow regimes are altered by diversions and operation of <br />water storage projects within the basin. <br />Water quality problems in the Upper Basin include heavy metal <br />pollution from mine drainage and high salinity (Bishop and Forcella <br />1981). Humpback chub appear to tolerate high levels of total <br />dissolved soilds (TDS) relative to those of the Colorado River <br />(Miller et al. 1982c). <br />Movement of fish upstream in the Colorado River is limited at <br />Palisade by Grand Valley Diversion Dam at km 297.8 (mi 185.1), <br />Price-Stub Dam at km 302.8 (mi 188.2), and Government Highiine Dam <br />at km 311.5 (mi 193.E). These structures probably do not affect <br />humpback chubs since they are far from known populations.., Moreover, <br />humpback chubs rarely migrate; they mostly remain within or near <br />their limited habitats (Archer et a1. 1985). <br />The original range of humpback chub probably included swift, <br />deepwater areas of the Colorado and Green rivers~(USFWS 1979, Flolden <br />and Stalnalter 1975b). Humpback chub populations in the Lower <br />Colorado River may have been eliminated by habitat-loss resulting <br />from construction of dams (I'SF59S lJ7`J). Humpback chub are presently <br />-i- <br />
The URL can be used to link to this page
Your browser does not support the video tag.