Results of the acoustic-trawl surveys of Walleye pollock (Gadus chalcogrammus) in the Gulf of Alaska, February-March 2013 (DY2013-02 and DY2013-03)

Jones, Darin; Stienessen, Sarah; McCarthy, Abigail L.

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Results of the acoustic-trawl surveys of Walleye pollock (Gadus chalcogrammus) in the Gulf of Alaska, February-March 2013 (DY2013-02 and DY2013-03)

2014
By Jones, Darin ; Stienessen, Sarah ; McCarthy, Abigail L.
Series: AFSC processed report ; 2014-03

[PDF-3.40 MB]

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Alternative Title:

Acoustic-trawl surveys of Walleye pollock (Gadus chalcogrammus) in the Gulf of Alaska, February-March 2013
Personal Author:

Jones, Darin ; Stienessen, Sarah ; McCarthy, Abigail L.

Jones, Darin ; Stienessen, Sarah ; McCarthy, Abigail L. 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:

"Scientists from the Midwater Assessment and Conservation Engineering (MACE) Program of the Alaska Fisheries Science Center's (AFSC) Resource Assessment and Conservation Engineering (RACE) Division routinely conduct acoustic-trawl (AT) stock assessment surveys in the Gulf of Alaska (GOA) during late winter and early spring to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus). Historically, most of these efforts have been focused on the Shelikof Strait area, which has been surveyed annually since 1981, except in 1982, when no survey was scheduled, and in 1999 and 2011, when all winter GOA surveys were cancelled (because of vessel delays). The Shumagin Islands area has been surveyed annually since 2001 (except in 2004 and 2011) with prior surveys in 1994-1996. Sanak Trough has been surveyed annually since 2002 (except in 2004 and 2011), and the GOA continental shelf break east of Chirikof Island to Barnabas Trough has been surveyed annually since 2002 with the exception of 2011. Marmot Bay has been surveyed in the winter a total of six times (1989, 1990, 1992, 2007, 2009, and 2010) and Morzhovoi Bay has been surveyed a total of three times (2006, 2007, and 2010). This report presents the results from AT surveys conducted in the aforementioned areas of the GOA during February and March 2013"--Introduction.
Content Notes:

by Darin T. Jones, Sarah C. Stienessen, and Abigail L. McCarthy.

"April 2014."

System requirements: Adobe Acrobat Reader.

Includes bibliographical references (page 19-20).
Keywords:

[+]

Echo Sounding In Fishing Fish Populations Fish Stock Assessment Geographical Distribution Measurement Walleye Pollock Walleye Pollock Fisheries
Series:

AFSC processed report ; 2014-03
Document Type:

Technical Report
Place as Subject:

Alaska ; Alaska, Gulf of

Alaska ; Alaska, Gulf of Less -
Rights Information:

Public Domain
Compliance:

Library
Main Document Checksum:

[+]

urn:sha256:955f9654191757108d963230ae93bff07199fa10647223cd0b0135dfde053036
Download URL:

https://repository.library.noaa.gov/view/noaa/4741/noaa_4741_DS1.pdf
File Type:

No Additional Files

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Results of the acoustic-trawl surveys of Walleye pollock (Gadus chalcogrammus) in the Gulf of Alaska, February-March 2013 (DY2013-02 and DY2013-03)

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