My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
9442
CWCB
>
UCREFRP
>
Public
>
9442
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
7/14/2009 5:02:35 PM
Creation date
5/22/2009 4:56:12 PM
Metadata
Fields
Template:
UCREFRP
UCREFRP Catalog Number
9442
Author
Muth, R. T. and T. E. Czapla.
Title
Workshop Summary
USFW Year
2002.
USFW - Doc Type
Designing Methods to Evaluate Stocked Fish in the Upper Colorado River, Green River, and San Juan River Subbasins.
Copyright Material
NO
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
33
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 />1.3 Organization of Workshop Summary <br /> <br />This workshop summary was prepared by the UCRRP Director's Office to summarize the <br />infonnation presented and discussed at the workshop, and to document major conclusions and <br />recommendations. The summary is organized by five major topic areas: (1.0) Introduction, (2.0) <br />Demographic Criteria in the Recovery Goals, (3.0) Overview of Stocking Plans, (4.0) Monitoring <br />Reports, and (5.0) References. Conclusions and recommendations in sections 3.0 and 4.0 were <br />gleaned from discussions of workshop participants. Format of figures and tables in this summary <br />varies and reflects differences in electronic files provided by the presenters. <br /> <br />2.0 DEMOGRAPHIC CRITERIA IN THE RECOVERY GOALS <br /> <br />The recovery goals were signed by the Director of Region 6 of the U.S. Fish and Wildlife <br />Service on August 1, 2002, and the notice of their availability was published in the Federal <br />Register on August 28 (67 FR 55270-55271). Objective, measurable recovery criteria include <br />demographic criteria that describe numbers of populations and individuals for downlisting and <br />delisting (Tables 1-3); estimated time lines to achieve recovery are presented in Figures 1 and 2. <br />The demographic criteria require the establishment/maintenance of genetically and <br />demographically viable, self-sustaining populations based on requirements of no significant <br />decline in numbers of adults and natural recruitment equal to or exceeding adult mortality. <br />Stocked fish will count as part of the adult stock. For the population to be self-sustaining, adults <br />must reproduce and recruitment of young fish into the adult stock must occm at a rate to <br />maintain the population at the required minimum levels. Adults are defined as age 7+ c::. 450 <br />mm total length [TL]) for Colorado pikeminnow, and age 4+ (~400 mm TL and ~ 250 nun TL, <br />respectively) for razorback sucker and bony tail. Mean estimated recruitment of naturally <br />produced age-6 (400--499 mm TL) Colorado pikeminnow and age-3 (300-399 mm TL and <br />150-249 mm TL, respectively) razorback sucker and bony tail in each population must equal or <br />exceed mean annual adult mortality (i.e., ~ 15% for Colorado pikeminnow, and ~ 30% for <br />razorback sucker and bony tail). The Department of the Interior/U.S. Fish and Wildlife Service <br />should take the lead in how recovery goals are achieved in the lower basin, absent a recovery <br />program. <br /> <br />2 <br />
The URL can be used to link to this page
Your browser does not support the video tag.