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  • AFSC/RACE/MACE: Results of 2015 acoustic trawl survey Gulf of Alaska M1501

    Metadata Updated: December 11, 2021

    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.

    Access & Use Information

    License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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    Dates

    Metadata Date November 30, 2021
    Metadata Created Date November 12, 2020
    Metadata Updated Date December 11, 2021
    Reference Date(s) (publication)
    Frequency Of Update

    Metadata Source

    Harvested from NMFS AFSC

    Additional Metadata

    Resource Type Dataset
    Metadata Date November 30, 2021
    Metadata Created Date November 12, 2020
    Metadata Updated Date December 11, 2021
    Reference Date(s) (publication)
    Responsible Party (Point of Contact, Custodian)
    Contact Email
    Guid gov.noaa.nmfs.inport:31672
    Access Constraints 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., 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. | 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.
    Bbox East Long -154.197
    Bbox North Lat 58.08
    Bbox South Lat 56.6393
    Bbox West Long -155.863
    Coupled Resource
    Frequency Of Update
    Harvest Object Id 1e0a8da7-f26b-42e4-a786-184991a0e829
    Harvest Source Id 26a29bb9-50b0-47fd-920b-edc74aa6ec76
    Harvest Source Title NMFS AFSC
    Licence 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.
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-155.863, 56.6393], [-154.197, 56.6393], [-154.197, 58.08], [-155.863, 58.08], [-155.863, 56.6393]]]}
    Progress
    Spatial Data Service Type
    Spatial Reference System
    Spatial Harvester True
    Temporal Extent Begin 2015-05-01
    Temporal Extent End 2015-05-02

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