Shumagin Islands Acoustic-Trawl Survey of Walleye Pollock (DY1001, ME70)
The Midwater Assessment and Conservation Engineering (MACE) program of the Alaska
Fisheries Science Center (AFSC; NOAA National Marine Fisheries Service) conducted
an acoustic-trawl (AT) stock assessment survey in the Gulf of Alaska (GOA) during
late winter of 2010 to estimate the distribution and abundance of walleye pollock
(Gadus chalcogrammus). The survey was conducted between 22 February and 9 March, 2010,
and included the Shumagin Islands, Sanak Trough, Morzhovoi Bay, Kenai Peninsula bays,
Prince William Sound, and Marmot Bay. The survey was conducted onboard NOAA Ship
Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation
in addition to biological sampling capabilities. The primary instrumentation for the
survey was a Simrad EK60 split-beam echosounder system utilizing five frequencies
(18, 38, 70, 120, and 200 kHz) and a Simrad ME70 multibeam echosounder, with the ME70
transmit pulse synchronized to the EK60 system. This data set includes Kongsberg Simrad
ME70 raw multibeam data, Seabird CTD data, and ship's navigation/oceanographic/meterological
sensor data.
- Cite as: Alaska Fisheries Science Center (2010): Water Column Sonar Data Collection (DY1001, ME70). National Centers for Environmental Information, NOAA. doi:10.7289/V58G8HN5 [access date]
- DY1001_ME70
- doi:10.7289/V58G8HN5
gov.noaa.ngdc.mgg.wcd:DY1001_ME70
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Ordering Instructions | Contact the Water Column Sonar Data Manager to order data |
Distributor | Water Column Sonar Data Manager NOAA National Centers for Environmental Information (303) 497-4742 wcd.info@noaa.gov |
Dataset Principal Investigator | Chris Wilson Supervisory Research Fish Biologist DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center (206) 526-6435 chris.wilson@noaa.gov |
Time Period | 2010-02-16T02:28:03 to 2010-03-09T03:17:36 |
Spatial Reference System | urn:ogc:def:crs:EPSG:4326 |
Spatial Bounding Box Coordinates |
West:-163.288072333
East:-122.412650167
South:47.6915530397
North:60.8575903772
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Documentation links not available. |
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Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Not planned |
Purpose | Cruise DY2010-01: Acoustic-trawl survey of walleye pollock (Gadus chalcogrammus) in Shumagin Islands and Sanak Trough areas of Gulf of Alaska; 22 February to 9 March, 2010. |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Instrument keywords | Global Change Master Directory (GCMD) Instrument Keywords
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Place keywords | International Hydrographic Organization (IHO) Sea Area ("Limits of Oceans and Seas"
publication S-23)
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Last Modified: 2017-05-30
For questions about the information on this page, please email:wcd.info@noaa.gov