Using productivity and susceptibility indices to assess the vulnerability of United States fish stocks to overfishing

Patrick , Wesley S. and Spencer , Paul and Link, Jason and Cope, Jason and Field, John and Kobayashi, Donald and Lawson, Peter and Gedamke, Todd and Cortés, Enric and Ormseth, Olav and Bigelow, Keith and Overholtz, William (2010) Using productivity and susceptibility indices to assess the vulnerability of United States fish stocks to overfishing. Fishery Bulletin, 108(3), pp. 305-322.

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Abstract

Assessing the vulnerability of stocks to fishing practices in U.S. federal waters was recently highlighted by the National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration, as an important factor to consider when 1) identifying stocks that should be managed and protected under a fishery management plan; 2) grouping data-poor stocks into relevant management complexes; and 3) developing precautionary harvest control rules. To assist the regional fishery management councils in determining vulnerability, NMFS elected to use a modified version of a productivity and susceptibility analysis (PSA) because it can be based on qualitative data, has a history of use in other fisheries, and is recommended by several organizations as a reasonable approach for evaluating risk. A number of productivity and susceptibility attributes for a stock are used in a PSA and from these attributes, index scores and measures of uncertainty are computed and graphically displayed. To demonstrate the utility of the resulting vulnerability evaluation, we evaluated six U.S. fisheries targeting 162 stocks that exhibited varying degrees of productivity and susceptibility, and for which data quality varied. Overall, the PSA was capable of differentiating the vulnerability of stocks along the gradient of susceptibility and productivity indices, although fixed thresholds separating low-, moderate-, and highly vulnerable species were not observed. The PSA can be used as a flexible tool that can incorporate regional-specific information on fishery and management activity.

Item Type: Article
Title: Using productivity and susceptibility indices to assess the vulnerability of United States fish stocks to overfishing
Personal Creator/Author:
CreatorsEmail
Patrick , Wesley S.
Spencer , Paul
Link, Jason
Cope, Jason
Field, John
Kobayashi, Donald
Lawson, Peter
Gedamke, Todd
Cortés, Enric
Ormseth, Olav
Bigelow, Keith
Overholtz, William
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 108
Number: 3
Page Range: pp. 305-322
Date: 2010
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8747
Depositing User: Patti M. Marraro
Date Deposited: 11 Jun 2012 18:34
Last Modified: 11 Jun 2012 18:34
URI: http://aquaticcommons.org/id/eprint/8747

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