gov.noaa.nmfs.inport:31666
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dataset
Alaska Fisheries Science Center
7600 Sand Point Way N.E., Building 4
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98115
USA
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MC, Metadata Coordinators
AFSC.metadata@noaa.gov
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2024-02-29T00:00:00
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
ISO 19115-2:2009(E)
AFSC/RACE/MACE: Results of 2015 acoustic trawl survey Shumagin/Sanak/PWS DY1502
2015 Winter Shumagin/Sanak/PWS EIT Survey
publication
NOAA/NMFS/EDM
31666
https://www.fisheries.noaa.gov/inport/item/31666
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information
McCarthy, Abigail
abigail.mccarthy@noaa.gov
originator
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The surveys primary objective was to collect acoustic data and trawl information to estimate midwater abundance and distribution of walleye pollock (Gadus chalcogrammus) in the Gulf of Alaska (GOA) Shumagins Region during late winter and early spring. Acoustic data were collected using five split-beam transducers (18, 38, 70, 120, and 200 kHz) and Simrad ER60 scientific echo sounders. Midwater and near-bottom acoustic backscatter was sampled using an Aleutian Wing 30/26 Trawl (AWT) and a poly Noreastern bottom trawl (PNE) with roller gear. This long-running survey has consistently provided data on the pollock population in the western GOA during winter and spring months.
Pollock Stock assessment
DeRobertis, Alex
206 526 4789
alex.derobertis@noaa.gov
pointOfContact
Towler, Rick
rick.towler@noaa.gov
custodian
DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce
dataCentre
Global Change Master Directory (GCMD) Data Center Keywords
2017-04-24
publication
8.5
AFSC/RACE/MACE: Pollock Acoustic/Trawl Survey Spawning Annual Shumagins
project
InPort
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Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/RACE/MACE: Results of 2015 acoustic trawl survey Shumagin/Sanak/PWS DY1502 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/31666.
NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
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Access Constraints: The data set is still being analyzed and will not be available for distribution until it has been finalized and all QA/QC practices have been performed. Contact the Data Point Of Contact for estimated time of release.
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Use Constraints: User must read and fully comprehend the metadata prior to use. User must acknowledge the Originator when using the data set as a source. User must share data products developed using the source data set with the Originator. Data should not be used beyond the limits of the source scale.
unclassified
NOAA Data Management Plan (DMP)
NOAA/NMFS/EDM
31666
https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/31666.pdf
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NOAA Data Management Plan (DMP)
NOAA Data Management Plan for this record on InPort.
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crossReference
eng; US
oceans
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-162.778
-148.3524
54.5566
60.0442
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2015-02-09
2015-02-19
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dataset
Acoustic data were recorded at the five split-beam frequencies using ER60 software and, as a backup, acoustic telegram data were logged with Myriax EchoLog 500 software. Acoustic measurements were collected from 16 m below the sea surface to within 0.5 m of the sounder-detected bottom or a maximum of 1,000 m in deep water. Data were analyzed using Myriax Echoview post-processing software. See National Marine Fisheries Service (NMFS) 2013. NOAA protocols for fisheries acoustics surveys and related sampling (Alaska Fisheries Science Center), 23 p. Prepared by Midwater Assessment and Conservation Engineering Program, Alaska Fish. Sci. Center, Natl. Mar. Fish. Serv., NOAA. Available online: http://www.afsc.noaa.gov/RACE/midwater/AFSC%20AT%20Survey%20Protocols_Feb%202013.pdf