My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
7058
CWCB
>
UCREFRP
>
Public
>
7058
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
7/14/2009 5:02:29 PM
Creation date
5/22/2009 7:30:52 PM
Metadata
Fields
Template:
UCREFRP
UCREFRP Catalog Number
7058
Author
Binns, N. A.
Title
Effects of Rotenone Treatment on the Fauna of the Green River, Wyoming.
USFW Year
1966.
USFW - Doc Type
Oregon State University,
Copyright Material
NO
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
47
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
4 f <br />~'. <br />y~='~lr. B~Ctloia ~. <br />- . <br />_~ ~~ =`1~ drift count, made above station #11, indicated that the num- <br />~:.=1-ors of whitefish and suckers were nearly equal in this area; a <br />_ ..~_. <br />.,:,-_ ccxuat below station #11 showed whitefish to predominate, with no <br />e~sridence of flannelmouth suckers. The disparity .af these two counts <br />points up the probably variation in species composition in adjacent <br />sections of the river, <br />The effectiveness of the reduction of the fish population below <br />station #14 by the 1961 test operation was very evident from the <br />d-rift counts. The population was made up largely of small suckers <br />and speckled dace. Only a few adult fish were found. Both species ~ <br />~,_, <br />--. . <br />- were either survivors from the test operation or immigrants into <br />the area. A few hybrid trout were taken near stations #19, #20, ,=` <br />-,. <br />and #21. These were probably migrants from nearby tributaries. <br />~^, <br />Gill netting at station #21, prior to treatment, had showed trout <br />to be present. The trout numbers seemed to be greatest near <br />~_ <br />Sheep Creek and declined up the river, _* <br />The only channel catfish observed during the 1962 treatment ~ <br />were found in Brown's Park near the detoxification station. All <br />fiah in this area were surprisingly scarce. Only„five s_quawfish <br />and no humpback chubs were reported during the treatment despite <br />intensive searching by various groups of observers. The squawfish <br />were found only below the Flaming Gorge Dam site. <br />
The URL can be used to link to this page
Your browser does not support the video tag.