My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
WSPC04033
CWCB
>
Water Supply Protection
>
Backfile
>
16000-16999
>
WSPC04033
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
1/26/2010 11:37:31 AM
Creation date
10/9/2006 4:21:46 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8240.300.31.A
Description
Colorado River Threatened-Endangered Species - Recovery Program - San Juan - Project Description
State
CO
Basin
San Juan/Dolores
Water Division
5
Date
2/1/1995
Author
Unknown
Title
San Juan River Basin - Recovery Implementation Program - Program Document-Cooperative Agreement-Long Range Plans-RIP Side by Side Analysis - February 1995
Water Supply Pro - Doc Type
Report/Study
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
111
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 />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />001321 <br /> <br />12 <br /> <br />Thereafter, specimens were taken from several locations in Utah, <br />Colorado, and New Mexico. During a three-year study initiated in <br />1987, 10 adult and 18 young-of-year specimens of Colorado <br />squawfish were captured. This effort documented the persistence <br />of the species from about Shiprock, New Mexico, downstream to <br />Lake Powell and successful reproduction in New Mexico and Utah. <br />Subsequently, nine additional specimens of Colorado squawfish <br />were captured between Shiprock and Four Corners in 1991 and one <br />was observed about 5 miles upstream of Shiprock. <br /> <br />Razorback sucker was reported ascending the Animas River in the <br />1890's, but specimen confirmation of its presence in the San Juan <br />Drainage was not made until 1976 when two adults were found in a <br />floodplain pond near Bluff, Utah. During the 1987-1990 study, <br />adults of razorback sucker were collected in the San Juan arm of <br />Lake Powell and a single male was found near Bluff, Utah. <br /> <br />Occurrence of bony tail chub in the San Juan Drainage is uncertain <br />as the record consists only of skeletal remains from Native <br />American middens and two questionable specimens collected prior <br />to 1930. One specimen is a hybrid of roundtail chub and another <br />chub species (possibly bony tail or humpback chub) and the second <br />has not been critically examined. <br /> <br />Among the remaining six native fish species, all persist in the <br />drainage. Cutthroat trout (Colorado River subspecies) survives <br />in several isolated headwater tributaries. Roundtail chub is <br />extremely rare in the San Juan and Animas rivers, but may be more <br />common in other streams (Los Pinos, Piedra, and Mancos). Mottled <br />sculpin occurs mainly in the Animas River, but is not common. <br />Speckled dace is generally distributed in the drainage, <br />particularly in upper tributaries, the Animas River, and San Juan <br />River upstream of Bluff. Flannelmouth and bluehead suckers <br />inhabit most reaches of the San Juan and Animas rivers as well as <br />lower reaches of some tributaries. <br />
The URL can be used to link to this page
Your browser does not support the video tag.