58284 2019 Winter Shelikof Strait EIT Survey Data Set Published / External 28144 AFSC/RACE/MACE: Pollock Acoustic/Trawl Survey Spawning Annual Shelikof Project 2019-03-22 2019-03-22 Scientists from the Alaska Fisheries Science Center conducted acoustic-trawl stock assessment surveys in the Gulf of Alaska during late winter and early spring 2019 to estimate the distribution and abundance of walleye pollock (Gadus chalcogrammus) at several of their main spawning grounds. Pollock Stock assessment Enter notes if applicable. https://repository.library.noaa.gov/view/noaa/23711 Enter supplemental information if applicable. Theme Enter the thesaurus that the keyword belongs to. Do not provide this node if no thesaurus exists. Pollock, Alaska, Acoustics Alaska Fisheries Science Center Seattle WA USA Data Set Files None Planned Document (digital) Enter an overview of the data set's entity and attribute information. Enter a citation for detailed information on the data set's entities and attributes. Enter the distribution liability statement. Enter credits to external persons or organizations contributing to the data set. Kongsberg/Simrad EK60 Oscar Dyson (DY) Aleutian Wing 30/26 Trawl (AWT); twice modified Marinovich midwater trawl; poly Noreastern (PNE) bottom trawl; Methot trawl; SBE-39, SBE-911plus, Sippican Deep Blue; NOAA protocols for fisheries acoustics surveys and related sampling (Alaska Fisheries Science Center), 23 p. Prepared by Midwater Assessment and Conservation Engineering Program, Alaska Fish. Sci. Center, Natl. Mar. Fish. Serv., NOAA. Available online: http://www.afsc.noaa.gov/RACE/midwater/AFSC%20AT%20Survey%20Protocols_Feb%202013.pdf Data Steward 2015 Person Towler, Rick rick.towler@noaa.gov Distributor 2015 Person Anderson, Charles charles.anderson@noaa.gov 325 Broadway, E/GC3 Boulder CO 33149 303-497-4742 Originator 2014-07-31 Person McCarthy, Abigail abigail.mccarthy@noaa.gov Point of Contact 2015 Person Jones, Darin darin.jones@noaa.gov Enter a general description of the extent, if any. -156.2557 -151.8448 58.5467 55.941 Enter a description for the geographic extent. Range 2019-03-06 2019-03-22 Enter a description of the time frame. Unclassified Go to https://www.ngdc.noaa.gov/mgg/wcd/ or email Anderson, Charles (charles.anderson@noaa.gov) The data set is still being analyzed and will not be available for distribution until it has been finalized and all QA/QC practices have been performed. Contact the Data Point Of Contact for estimated time of release. User must read and fully comprehend the metadata prior to use. User must acknowledge the Originator when using the data set as a source. User must share data products developed using the source data set with the Originator. Data should not be used beyond the limits of the source scale. https://www.ngdc.noaa.gov/mgg/wcd/ https://www.ngdc.noaa.gov/mgg/wcd/ Enter the name of the URL. Required for Browse Graphic URLs. Enter the file resource format Enter the URL description. These data were collected in accordance NOAA protocols for fisheries acoustics surveys and related sampling (Alaska Fisheries Science Center), 23 p. Prepared by Midwater Assessment and Conservation Engineering Program, Alaska Fish. Sci. Center, Natl. Mar. Fish. Serv., NOAA. Available online: http://www.afsc.noaa.gov/RACE/midwater/AFSC%20AT%20Survey%20Protocols_Feb%202013.pdf No Unknown. Yes No 180 If the delay between data collection and dissemination is longer than the latency of automated processing, explain under what authority data access is delayed. This field should only be included if the delay is longer than the latency of automated processing. NCEI-CO 180 IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption. Acoustic data were recorded at the five split-beam frequencies using ER60 software and, as a backup, acoustic telegram data were logged with Myriax EchoLog 500 software. Acoustic measurements were collected from 16 m below the sea surface to within 0.5 m of the sounder-detected bottom or a maximum of 1,000 m in deep water. Data were analyzed using Myriax Echoview post-processing software. See National Marine Fisheries Service (NMFS) 2013. NOAA protocols for fisheries acoustics surveys and related sampling (Alaska Fisheries Science Center), 23 p. Prepared by Midwater Assessment and Conservation Engineering Program, Alaska Fish. Sci. Center, Natl. Mar. Fish. Serv., NOAA. Available online: http://www.afsc.noaa.gov/RACE/midwater/AFSC%20AT%20Survey%20Protocols_Feb%202013.pdf Simrad EK60 b7ae3f00-701c-11e0-a1f0-0800200c9a66 instrument Singlebeam Echosounder The Simrad EK60 Scientific Sounder system is a new generation fishery researchtool, based on experience from the EK500. The new electronic hardware is combined with up to date PC processing and Windows operation. The EK60 provides facilities for accurate echo sounding, data storage, data analysis and reporting results. The system communication is through Ethernet, which gives flexibility in the location of the EK60 system units and allows easy access to data from other instruments or stations on a vessel network. A post processing software, BI60, is also included in the EK60 system. R/V Bell M Shimada The vessel is 209 feet in length with a diesel electric drive system with two 1,508-horsepower propulsion motors and one 14.1-foot propeller. The deck has an oceanographic winch, two stern trawl winches, and two A-Frame winches. The ship can cruise at 12 knots and can accommodate 39 crewmembers, including 15 scientists. Simrad EK60 b7ae3f00-701c-11e0-a1f0-0800200c9a66 instrument Singlebeam Echosounder The Simrad EK60 Scientific Sounder system is a new generation fishery researchtool, based on experience from the EK500. The new electronic hardware is combined with up to date PC processing and Windows operation. The EK60 provides facilities for accurate echo sounding, data storage, data analysis and reporting results. The system communication is through Ethernet, which gives flexibility in the location of the EK60 system units and allows easy access to data from other instruments or stations on a vessel network. A post processing software, BI60, is also included in the EK60 system. gov.noaa.nmfs.inport:58284 Abigail McCarthy 2019-12-05T13:47:08 SysAdmin InPortAdmin 2025-05-15T19:15:53 2021-10-13 Alaska Fisheries Science Center AFSC 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA https://www.afsc.noaa.gov 0700-1700 Pacific Time 1001 Public No No 2021-10-13 1 Year 2022-10-13