My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
6028
CWCB
>
UCREFRP
>
Public
>
6028
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
7/14/2009 5:02:28 PM
Creation date
5/17/2009 11:56:12 PM
Metadata
Fields
Template:
UCREFRP
UCREFRP Catalog Number
6028
Author
Wick, E. J., D. L. Stoneburner and J. A. Hawkins.
Title
Observations on the Ecology of Colorado Squawfish (
USFW Year
1983.
Copyright Material
NO
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
64
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
areas in the middle and lower Green River, downstream from Jensen, Utah; <br />and (3) squawfish that establish residency in the Yampa River tend to <br />remain within their home range throughout the year except to spawn. <br />Twelve larvae were captured below river km 18, indicating successful <br />Colorado squawfish reproduction in the Lower Yampa River. Our collections <br />and those of others suggest that larvae tend to drift or move down the <br />Yampa River and into and down the Green River. <br />Habitat use varied seasonally based on flow and habitat availability. <br />During high flows, squawfish tend to move out of the main river into <br />low-velocity eddies and backwaters. At low flow they tend to move back <br />into the main river, using pools and runs. Flooded backwater habitats <br />used by Colorado squawfish during runoff may play an important role in <br />preconditioning fish for spawning by providing warmer water and feeding <br />or resting areas. <br />Water temperature is a primary factor influencing spawning time. <br />Migration occurred as fish temperatures approached 16°C. Fish were in <br />the spawning area as temperatures approached 19°C and spawning behavior <br />was observed after fish temperatures exceeded 19°C. Alterations of <br />Yampa River flow and temperature regimes could affect the reproductive <br />success of Colorado squawfish spawning within the boundaries of Dinosaur <br />National Monument. <br />vi
The URL can be used to link to this page
Your browser does not support the video tag.