Shelikof Strait Acoustic-Trawl Survey of Walleye Pollock (DY1002, 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 central Gulf of Alaska (GOA)
and Shelikof Strait during late winter/early spring of 2010 to estimate the distribution
and abundance of walleye pollock (Gadus chalcogrammus). The survey was conducted between
18 and 30 March, 2010, and included the central Gulf of Alaska along the shelf break
east of Chirikof Island and throughout Shelikof Strait. 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 (DY1002, ME70). National Centers for Environmental Information, NOAA. doi:10.7289/V5D798CW [access date]
- DY1002_ME70
- doi:10.7289/V5D798CW
gov.noaa.ngdc.mgg.wcd:DY1002_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 | 2010-03-17T17:54:46 to 2010-03-30T14:58:18 |
Spatial Reference System | urn:ogc:def:crs:EPSG:4326 |
Spatial Bounding Box Coordinates |
West:-157.00338725
East:-151.865802617
South:55.6178820556
North:58.4240708636
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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 DY2010-02: Acoustic-trawl survey of walleye pollock (Gadus chalcogrammus) in Shelikof Strait and central Gulf of Alaska; 18 to 30 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