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.
Complete Metadata
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"fn": "DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center",
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"hasEmail": "mailto:chris.wilson@noaa.gov"
}
|
| describedByType | application/octet-steam |
| description | 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. |
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| identifier | gov.noaa.ngdc.mgg.wcd:DY1303_ME70 |
| issued | 2013-03-14T00:00:00.000+00:00 |
| keyword |
[
"Earth Science > Oceans > Ocean Acoustics > Acoustic Scattering",
"Earth Science > Oceans > Aquatic Sciences > Fisheries",
"Earth Science > Oceans > Ocean Acoustics",
"Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Pelagic",
"Earth Science > Biosphere > Ecosystems > Marine Ecosystems",
"Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Benthic",
"Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems",
"Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry",
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"Gulf of Alaska",
"GEOGRAPHIC REGION > GLOBAL",
"Vertical Location > VERTICAL LOCATION > SEA FLOOR",
"In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System",
"DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
"DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce",
"DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce"
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| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2013-03-14T00:00:00.000+00:00 |
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| spatial | -151.667669953,55.6184802767,-156.72320349,58.4931787533 |
| temporal | 2013-03-14T18:29:11+00:00/2013-03-28T15:37:01+00:00 |
| title | Shelikof Strait Acoustic-Trawl Survey of Walleye Pollock (DY1303, ME70) |
