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

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.

National Park Service concessions management : hearings before the Subcommittee on National Parks, Historic Preservation, and Recreation of the Committee on Energy and Natural Resources, United States Senate, One Hundred Seventh Congress, first session to review the National Park Service implementation of management policies and procedures to comply with the provisions of Titles I, II, III, IV, V, VI, VII, and VIII of the National Parks Omnibus Management Act of 1998, March 22, 2001, March 29, 2001.

Shipping list no.: 2001-0261-P.

Miscellaneous national parks bills : hearing before the Subcommittee on National Parks of the Committee on Energy and Natural Resources, United States Senate, One Hundred Seventh Congress, first session, on S. 423, S. 941, S. 1057, S. 1105, H.R. 640, July 26, 2001.

"Printed for the use of the Committee on Energy and Natural Resources."

National Transportation Safety Board reauthorization and Pipeline Safety Act reauthorization : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Fourth Congress, second session, April 16, 1996.

Mode of access: Internet.

Reauthorization of the Substance Abuse and Mental Health Services Administration : hearing before the Subcommittee on Substance Abuse and Mental Health Services of the Committee on Health, Education, Labor, and Pensions, United States Senate, One Hundred Eighth Congress, first session, on examining proposed legislation authorizing funds for the Substance Abuse and Mental Health Services Administration, focusing on the importance of substance abuse prevention, July 15, 2003.

Shipping list no.: 2004-0105-P.

Reorganization plan no. 5 of 1961: National Labor Relations Board. Hearings before the Committee on Government Operations, United States Senate, Eighty-seventh Congress first session, resolution of disapproval, S. Res. 158. July 12, 13, and 14, 1961.

Mode of access: Internet.

Nominations before the Senate Armed Services Committee, second session, 106th Congress : hearings before the Committee on Armed Services, United States Senate, One Hundred Sixth Congress, second session, on nominations of Rudy de Leon; Douglas A. Dworkin; Bernard D. Rostker; Gregory R. Dahlberg; Madelyn R. Creedon; Adm. Vernon E. Clark; Gen. John A. Gordon; Lt. Gen. Tommy R. Franks; Lt. Gen. William F. Kernan; Donald Mancuso; Roger W. Kallock; James E. Baker; Lt. Gen. Peter Pace; Lt. Gen. Charles R. Holland; Maj. Gen. Robert B. Flowers; and Robert B. Pirie, Jr., February 8; March 21; April 11; May 16, 24; June 27; July 26; September 6; October 3, 19, 2000.

Shipping list no.: 2001-0213-P.

Marine flora and fauna of the northeastern United States : Echinodermata : Holothuroidea

Mode of access: Internet.

Proposed St. Thomas national marine sanctuary : United States Department of Commerce draft environmental impact statement /

"April 1981."

Workbook for estimating the climatology of regional-continental scale atmospheric dispersion and deposition over the United States /

Mode of access: Internet.

Records of the Department of State relating to internal affairs of Bulgaria, 1910-1944 [microform].

Accompanying guide includes index.

Records of the Department of State relating to the internal affairs of Greece, 1910-1929 [microform].

Microfilm of documents from the Dept. of State decimal file 868.

Records of the Department of State relating to internal affairs of Poland, 1916-1944 [microform].

Accompanying guide includes index.

Records of the Central Superintendency of Indian affairs, 1813-1878 [microform]

Reel 1 consists of Registers of correspondence with the Commissioner of Indian Affairs, volumes 1 and 2, 1847-66 and Registers of letters received from the Commissioner of Indian Affairs, Volumes 1 and 2, 1866-78.