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Calculating acceptable biological catch for stocks that have reliable catch data only (Only Reliable Catch Stocks - ORCS)
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2011
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[PDF-2.72 MB]
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Description:"In response to the 2006 reauthorization of the Magnuson-Stevens Act (MSA), the National Marine Fisheries Service established National Standard 1 (NS1) Guidelines, which included a requirement to set an acceptable biological catch (ABC) that accounts for scientific uncertainty in the estimate of a stock's overfishing limit (OFL). This is an exceedingly difficult task for the large number of stocks for which reliable catch data are the only information available, as these stocks cannot be assessed with traditional stock assessment methods. For the purpose of this document, these stocks will be called "only reliable catch stocks" (ORCS). Despite the inherent problem of setting ABCs for ORCS, the MSA requirement remains. At the second National SSC meeting November 10-13, 2009 in St. Thomas, USVI, an ad hoc Working Group was established to identify, suggest, and evaluate alternative approaches for the setting of ABCs for ORCS. Working Group members represent seven of the eight SSCs, five of the six NMFS Science Centers, NMFS Headquarters, as well as a regional fishery management council, academic institutions, a state agency, and an NGO. This report reviews existing methods for setting catch limits for ORCS. Each approach is briefly summarized followed by a description of the required data, the major assumptions and consequent cautionary advice in utilizing the particular approach, its potential for use in a risk based decision-making framework, the status of the approach along with examples of its implementation, and the pros and cons of using the approach as viewed by the Working Group"--Executive summary, paragraphs 1-3.
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Content Notes:by Jim Berkson, Luiz Barbieri, Steve Cadrin, Shannon Cass-Calay, Paul Crone, Marin Dorn, Claudia Friess, Donald Kobayashi, Thomas J. Miller, Wesley S. Patrick, Sarah Pautzke, Stephen Ralston, Michael Trianni.
"May 2011."
Includes bibliographical references (pages 32-34).
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Rights Information:Public Domain
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