Results of the 2016 eastern Bering Sea upper continental slope survey of groundfishes and invertebrate resources

Hoff, Gerald Raymond, 1962-

doi:10.7289/V5/TM-AFSC-339

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Results of the 2016 eastern Bering Sea upper continental slope survey of groundfishes and invertebrate resources

2016
By Hoff, Gerald Raymond, 1962-
Series: NOAA technical memorandum NMFS-AFSC ; 339

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Alternative Title:

2016 eastern Bering Sea upper continental slope survey of groundfishes and invertebrate resources
Personal Author:

Hoff, Gerald Raymond, 1962-
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 results of the 2016 Alaska Fisheries Science Center's (AFSC) bottom trawl survey of the groundfish and invertebrate resources of the eastern Bering Sea upper continental slope (EBSS) are presented. The 2016 EBSS survey is the sixth standardized biennial groundfish bottom trawl survey of this region. One-hundred eighty-nine successful survey bottom trawls were conducted between 200 and 1,200 m depth on the eastern Bering Sea slope. The survey area extended from Unalaska and Akutan Island in Alaska (54° N) to the U.S-Russian maritime boundary at 61° N. Sampling was stratified by six subareas running south to north and by five depth strata within each subarea. Stations were chosen randomly and target sampling density was proportional to the area in each stratum. Mean sampling density was approximately one tow per 173 km2 . This report provides estimates of biomass in metric tons (t), population number, and catch per unit effort (CPUE; no./ha and kg/ha) for all taxa identified on the survey. Size frequencies (42 species) and CPUE distribution plots (41 species) are presented for the most abundant species or species of commercial interest. The five fish species with the greatest estimated survey biomass were giant grenadier (Albatrossia pectoralis), Pacific ocean perch (Sebastes alutus), popeye grenadier (Coryphaenoides cinereus), walleye pollock (Gadus chalcogramma) and arrowtooth flounder (Atheresthes stomias) [doi:10.7289/V5/TM-AFSC-339 (http://dx.doi.org/10.7289/V5/TM-AFSC-339)]
Content Notes:

by G.R. Hoff.

"December 2016."

System requirements: Adobe Acrobat Reader.

Includes bibliographical references (pages 240-241).
Keywords:

[+]

Biomass Estimates Fish Populations Fish Surveys Groundfishes Marine Invertebrate Populations Marine Invertebrates
Series:

NOAA technical memorandum NMFS-AFSC ; 339
DOI:

http://doi.org/10.7289/V5/TM-AFSC-339
Document Type:

Technical Memorandum
Place as Subject:

Bering Sea
Rights Information:

Public Domain
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:fabaea7e801678b2c03bee3a76eab88b608f4f3fe3c0f2016108870bf9f82d48
Download URL:

https://repository.library.noaa.gov/view/noaa/12967/noaa_12967_DS1.pdf
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Results of the 2016 eastern Bering Sea upper continental slope survey of groundfishes and invertebrate resources

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