My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
9523
CWCB
>
UCREFRP
>
Public
>
9523
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
7/14/2009 5:02:36 PM
Creation date
5/22/2009 7:31:32 PM
Metadata
Fields
Template:
UCREFRP
UCREFRP Catalog Number
9523
Author
Birchel, G. J. and K. Christopherson.
Title
Survival, Growth and Recruitment of larval and Juvenile Razorback Suckers (Xyrauchen texanus) Introduced into Floodplain Depressions of the Green River, Utah.
USFW Year
2004.
USFW - Doc Type
Vernal.
Copyright Material
NO
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
76
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 />set in the sites and checked daily for three to five days. After fyke net sampling was <br />~ concluded a "scare and snare" tactic with an electrofishing boat and trammel nets was <br />employed. An outboard powered aluminum Jon boat equipped with a 6000 watt <br /> <br />generator and Smith-Root Model 5.0 GPP was used for electrofishing. Between one <br />and three trammel nets were used to snare fish. A large net measuring 1.5 m wide x <br />45.7 m long with 15.2 cm walling x 2.5 cm mesh was used during each effort. <br />~ Additional nets when used were 1.22 m wide with three 7.6 m panels of different walling <br />and mesh sizes. These sizes were 20.3 cm walling x 2.5 cm mesh, 17.8 cm x 1.9 cm <br />and 15.2 cm x 1.3 cm. Electrofishing (scare) was conducted in the vicinity of the <br />~ trammel net and attempts were made to herd fish into the net (snare). <br />During fall 1999 and spring 2000 sampling, captured razorback sucker were <br />weighed, measured, tagged with a Passive Integrated Transponder (PIT) tag, and <br />released back into the sites. Mark-recapture population estimates for age-1 fish <br />stocked in 1999 were generated for each site following the first growing season. <br />~ Below average spring flows and summer drought conditions resulted in poor <br />water quality at each study site during summer 2000. Razorback sucker were not <br />caught at The Stirrup site during late summer sampling indicating a possible complete <br />~ loss of fish in the site. With declining water quality, continued survival of razorback <br />sucker in the Baeser Bend site became a concern. These razorback suckers were <br />~ captured, weighed, measured, PIT tagged and released into the river. Fish health such <br />as condition factor, and fin condition appeared to be better at Above Brennan than at <br />the other sites. Razorback sucker captured in Above Brennan were weighed, <br />~ measured, PIT tagged and released back into the site. <br />8 <br /> <br />
The URL can be used to link to this page
Your browser does not support the video tag.