Gulf of Alaska Acoustic-Trawl Surveys of Walleye Pollock (DY1002, EK60)
The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted acoustic-trawl (AT) stock assessment surveys in the Gulf of Alaska (GOA) during the late winter/early spring of 2010 to estimate the distribution and abundance of walleye pollock (Theragra chalcogramma). The vessel departed Kodiak, Alaska on 18 March and conducted a survey along the central Gulf of Alaska shelf east of Chirikof Island 18-19 March. The vessel conducted fisheries research operations on Snakehead shelf 19-22 March. The vessel then surveyed Shelikof Strait 22-28 March and returned to Kodiak, Alaska on 30 March following a post-cruise EK60 echosounder system calibration 29-30 March. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center",
"@type": "vcard:Contact",
"hasEmail": "mailto:chris.wilson@noaa.gov"
}
|
| describedByType | application/octet-steam |
| description | The Midwater Assessment and Conservation Engineering (MACE) program of NOAA National Marine Fisheries Service (NMFS), Alaska Fisheries Science Center (AFSC) conducted acoustic-trawl (AT) stock assessment surveys in the Gulf of Alaska (GOA) during the late winter/early spring of 2010 to estimate the distribution and abundance of walleye pollock (Theragra chalcogramma). The vessel departed Kodiak, Alaska on 18 March and conducted a survey along the central Gulf of Alaska shelf east of Chirikof Island 18-19 March. The vessel conducted fisheries research operations on Snakehead shelf 19-22 March. The vessel then surveyed Shelikof Strait 22-28 March and returned to Kodiak, Alaska on 30 March following a post-cruise EK60 echosounder system calibration 29-30 March. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation. |
| distribution |
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"title": "Water Column Sonar Data Map Viewer",
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|
| identifier | gov.noaa.ngdc.mgg.wcd:DY1002_EK60 |
| issued | 2010-03-18T00:00:00.000+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",
"Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography",
"Gulf of Alaska",
"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",
"GEOGRAPHIC REGION > GLOBAL",
"Vertical Location > VERTICAL LOCATION > SEA FLOOR",
"In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > WCMS > Water Column Mapping System"
]
|
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2010-03-18T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA National Centers for Environmental Information",
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|
| rights | otherRestrictions, otherRestrictions |
| spatial | -151.86566,55.52075,-157.0034,58.74647 |
| temporal | 2010-03-18T02:30:08+00:00/2010-03-30T15:06:04+00:00 |
| title | Gulf of Alaska Acoustic-Trawl Surveys of Walleye Pollock (DY1002, EK60) |
