Details:

Alternative Title:
Cruise DY2014-02
Personal Author:
McKelvey, Denise ; Stienessen, Sarah
McKelvey, Denise ; Stienessen, Sarah 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 (AFSC) regularly conduct acoustic-trawl (AT) surveys in late February and early March to estimate the abundance of pre-spawning walleye pollock (Gadus chalcogrammus; hereafter referred to as 'pollock') in the southeastern Aleutian Basin near Bogoslof Island (Honkalehto et al. 2008a). These surveys were conducted annually between 1988 and 2007 (with the exception of 1990 and 2004), and biennially starting in 2009 (with the exception of 2011). The biomass estimate for pollock within the Central Bering Sea Convention Specific Area obtained during these AT surveys provides an index of abundance for the Aleutian Basin pollock stock. This report summarizes observed pollock distribution and biological information from the winter 2014 AT survey, and provides an abundance estimate (Ianelli et al. 2014a), and it summarizes water temperature observations, and acoustic system calibration results"--Introduction.
Content Notes:
by Denise McKelvey and Sarah Stienessen.

"July 2015."

Includes bibliographical references (pages 13-15).


Keywords:
[+]
Catch Effort Echo Sounding In Fishing Equipment And Supplies Estimates Fisheries Fish Populations Fish Stock Assessment Geographical Distribution Mathematical Models Trawls And Trawling Walleye Pollock Walleye Pollock Fisheries
Series:
AFSC processed report ; 2015-06
Document Type:
Technical Report
Place as Subject:
Bering Sea ; Alaska ; Bering Sea Coast
Bering Sea ; Alaska ; Bering Sea Coast Less -
Rights Information:
Public Domain
Compliance:
Library
Main Document Checksum:
[+]
urn:sha256:f626141cc7ca91b1bde0bdb67a0a4fe186366ef61e631682152f180b8f1623f6
Download URL:
https://repository.library.noaa.gov/view/noaa/5308/noaa_5308_DS1.pdf
File Type:

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