Gulf of Alaska Acoustic-Trawl Survey of Walleye Pollock (DY1303, EK60)

Metadata Updated: February 7, 2018

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 2013 to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus). The vessel departed Kodiak, Alaska on 14 March arriving at the start of the first survey on 15 March. The Marmot Bay survey was conducted 15-16 March, Shelikof Strait 16-25 March, and Gulf of Alaska shelf break east of Chirikof Island 25-27 March. The vessel arrived in Kodiak 28 March following a post-cruise EK60 calibration on 27 March in Three Saints Bay, Kodiak Island, Alaska. The survey was conducted aboard NOAA Ship Oscar Dyson, a 64 meter stern trawler equipped with acoustic and oceanographic instrumentation.

Access & Use Information

Downloads & Resources

Dates

Metadata Date May 30, 2017
Metadata Created Date September 5, 2016
Metadata Updated Date February 7, 2018
Reference Date(s) March 13, 2013 (creation)
Frequency Of Update notPlanned

Metadata Source

Harvested from NOAA CSW Harvest Source

Additional Metadata

Resource Type Series
Metadata Date May 30, 2017
Metadata Created Date September 5, 2016
Metadata Updated Date February 7, 2018
Reference Date(s) March 13, 2013 (creation)
Responsible Party DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center (Principal Investigator)
Contact Email
Access Constraints Cite as: Alaska Fisheries Science Center (2013): Water Column Sonar Data Collection (DY1303, EK60). National Centers for Environmental Information, NOAA. doi:10.7289/V5PK0D4X [access date], Resource may not be available for up to one year after initial collection.
Bbox East Long -151.66765
Bbox North Lat 58.49317
Bbox South Lat 55.61838
Bbox West Long -156.72324
Coupled Resource
Frequency Of Update notPlanned
Guid gov.noaa.ngdc.mgg.wcd:DY1303_EK60
Harvest Object Id e8862b64-d9b7-4a7b-810e-236d9f9d84e9
Harvest Source Id 2aed8e29-fc5b-4cde-aa66-fb1118fd705e
Harvest Source Title NOAA CSW Harvest Source
Licence While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty., These data are considered raw and have not been subjected to the NOAA's quality control or quality assurance procedures. They are released for limited public use as preliminary data to be used only with appropriate caution. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty., Not subject to copyright protection within the United States.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG:4326
Spatial Harvester True
Temporal Extent Begin 2013-03-13T00:02:22
Temporal Extent End 2013-03-28T16:15:42

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