My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
7759
CWCB
>
UCREFRP
>
Public
>
7759
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
7/14/2009 5:02:31 PM
Creation date
5/22/2009 7:28:49 PM
Metadata
Fields
Template:
UCREFRP
UCREFRP Catalog Number
7759
Author
Beyers, D. W. and M. S. Farmer.
Title
Effects of Copper and Zinc on Olfaction of Colorado Squawfish as Estimated by Behavioral Assay.
USFW Year
1994.
USFW - Doc Type
\
Copyright Material
NO
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
39
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
The biological significance of these results for Colorado <br />squawfish is uncertain, but they suggest that adverse effects on <br />wild fish may occur. Yampa River water quality characteristics <br />were chosen for study because adult Colorado squawfish inhabit <br />the river all year, and spawning occurs in it from late June <br />through early August. Results of this study and limited sampling <br />of available water-quality data suggest that copper and zinc <br />concentrations in the Yampa River may inhibit olfactory ability <br />of resident Colorado squawfish. However, a thorough description <br />of water quality and heavy-metal concentrations at various <br />localities in the Colorado River Basin is needed to assess <br />magnitude and duration of exposure to contaminants before a <br />prediction of the likelihood of adverse effects to Colorado <br />squawfish can be made. In addition, a series of field and <br />laboratory studies should be conducted to more thoroughly <br />describe the relationship between contaminant exposure and <br />olfactory inhibition. <br />There are a variety of sources of heavy-metal contamination <br />within the Colorado River Basin. For example, natural hot <br />springs contribute heavy-metal mixtures, irrigation returns <br />mobilize metals from agricultural lands, and historic mining <br />operations deposit acid mine waste and tailings (Pearl 1972; CDOH <br />1988; Liebermann et al. 1989). The potential for these sources <br />of contamination to result in adverse ecological effects is <br />compounded by demand for water in the west. As water resources <br />are diverted for municipal, industrial, and agricultural uses, <br />20 <br />
The URL can be used to link to this page
Your browser does not support the video tag.