gov.noaa.nmfs.inport:31672 eng UTF8 dataset Alaska Fisheries Science Center 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA https://www.afsc.noaa.gov WWW:LINK-1.0-http--link Website Website for this organization information 0700-1700 Pacific Time resourceProvider 2026-03-04T19:17:27 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) AFSC/RACE/MACE: Results of 2015 acoustic trawl survey Gulf of Alaska M1501 Alex's mooring recovery survey publication NOAA/NMFS/EDM 31672 https://www.fisheries.noaa.gov/inport/item/31672 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information McCarthy, Abigail abigail.mccarthy@noaa.gov originator Enter other citation details. Three trawl-resistant bottom- mounted moorings (TRBM) instrumented with newly developed autonomous battery powered 70 kHz split-beam echosounders were deployed in Shelikof Strait, Alaska (Fig. 39) to observe pollock abundance over the spawning season. The moorings were deployed from the NOAA ship Oscar Dyson 12-19 February, and recovered from a chartered fishing vessel May 5-10, 2015. The mooring locations were visited by survey vessels on four occasions to conduct mooring-related AT survey work (February 25-36, March 17-21, March 27-30, and May 5-10). A large-scale acoustic survey of Shelikof Strait (Fig. 20) was conducted on each occasion to establish the abundance and distribution of pollock over a broader area. Small-scale acoustic surveys (Fig. 39) and midwater trawl hauls (Tables 3, 10 and 11) were conducted in the vicinity of the moorings during each visit. The observations from the moorings and survey vessels will be compared to establish the spatial relationship and associated uncertainty between the mooring measurements and the ship-based acoustic-trawl survey data. Pollock Stock assessment, moorings DeRobertis, Alex 206 526 4789 alex.derobertis@noaa.gov pointOfContact Towler, Rick rick.towler@noaa.gov custodian DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian AFSC/RACE/MACE: Upward looking moored echosounders - Shelikof Strait project InPort otherRestrictions Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/RACE/MACE: Results of 2015 acoustic trawl survey Gulf of Alaska M1501 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/31672. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: 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. otherRestrictions Use Constraints: 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. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 31672 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/31672.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US oceans Enter a general description of the extent, if any. -155.863 -154.197 56.6393 58.08 Enter a description for the geographic extent. Enter a description of the time frame. 2015-05-01 2015-05-02 Enter supplemental information if applicable. dataset 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