Details:

Personal Author:
Orr, James Wilder, 1958-; Drumm, David T. (David Thomas); Laman, Edward A.; Stevenson, Duane E., 1970-; Hoff, Gerald Raymond, 1962-;
Orr, James Wilder, 1958-; Drumm, David T. (David Thomas); Laman, Edward A.; Stevenson, Duane E., 1970-; Hoff, Gerald Raymond, 1962-; Less -
Corporate Authors:
Alaska Fisheries Science Center (U.S.);
NOAA Program & Office:
NMFS (National Marine Fisheries Service); AFSC (Alaska Fisheries Science Center);
NMFS (National Marine Fisheries Service); AFSC (Alaska Fisheries Science Center); Less -
Description:
"The Resource Assessment and Conservation Engineering (RACE) Division of the Alaska Fisheries Science Center (AFSC) has been conducting standardized bottom trawl surveys of the continental shelf and upper slope of the Gulf of Alaska (GOA) and Aleutian Islands (AI) since 1980. The quality and specificity of field identifications for many taxa have fluctuated over the history of the surveys due to changing priorities and resources. Historical trends in identification quality for the Gulf of Alaska and Aleutian Islands surveys have not been previously documented. This report includes an identification confidence matrix for all fishes and invertebrates identified from the GOA and AI surveys from 1980 through 2011. The matrix lists a confidence level for each taxon by survey year along with its frequency of occurrence on that survey and the number of corroborating voucher collections. The matrix is intended to serve as a general guideline for data users interested in assessing the reliability of historical species identifications on these surveys."
Content Notes:
by James W. Orr., David T. Drumm, Edward A. Laman, Duane E. Stevenson, and Gerald R. Hoff. Chiefly tables. "April 2014." System requirements: Adobe Acrobat Reader. Includes bibliographical references (pages 7-8).
Keywords:
[+]
Dredging (Fisheries)
Fishes
Fish Populations
Fish Stock Identification
Fish Surveys
Statistics
Trawls And Trawling

Series:
AFSC processed report ; 2014-01;
Document Type:
Technical Report;
Place as Subject:
Alaska; Alaska, Gulf of; Aleutian Islands;
Alaska; Alaska, Gulf of; Aleutian Islands; Less -
Rights Information:
Public Domain
Compliance:
Library
Main Document Checksum:
[+]
urn:sha256:d08165f185b461bfe40cc8d7386707550003b1530cd401aae4fd398e4a3e4a76
File Type:

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