Shelikof Strait Acoustic-Trawl Survey of Walleye Pollock (DY1303, ME70)
The Midwater Assessment and Conservation Engineering (MACE) program of NOAA's National
Marine Fisheries Service, Alaska Fisheries Science Center (AFSC) conducted an acoustic-trawl
(AT) stock assessment survey in the Gulf of Alaska (GOA) during late winter and early
spring of 2013 to estimate the distribution and abundance of walleye pollock (Gadus
chalcogrammus). The survey areas included the Shelikof Strait, Marmot Bay, and along
the GOA shelf break east of Chirikof Island (March 15-27, 2013). The survey was conducted
aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and
oceanographic instrumentation, and 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
trigger synchronized to the EK60 system.
- Cite as: Alaska Fisheries Science Center (2013): Water Column Sonar Data Collection (DY1303, ME70). National Centers for Environmental Information, NOAA. doi:10.7289/V5BK1996 [access date]
- DY1303_ME70
- doi:10.7289/V5BK1996
gov.noaa.ngdc.mgg.wcd:DY1303_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 | 2013-03-14T18:29:11 to 2013-03-28T15:37:01 |
Spatial Reference System | urn:ogc:def:crs:EPSG:4326 |
Spatial Bounding Box Coordinates |
West:-156.72320349
East:-151.667669953
South:55.6184802767
North:58.4931787533
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Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Not planned |
Purpose | Acoustic-trawl survey of walleye pollock in Shelikof Strait area of the Gulf of Alaska |
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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