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    • Alaska Seaweed Source Inventory

    Metadata Updated: September 27, 2025

    These data are part of NOAA fisheries efforts to identify Aquaculture Opportunity Areas (AOAs) in Alaska state waters. These data depict seaweed beds mapped during 2024-2025 in relation to draft AOA options within study areas and are provided in ESRI shapefile format. This seaweed source inventory contributes to environmental characterization as part of the AOA identification process, and may additionally support farmers and state agency officials when siting new seaweed farms in Alaska state waters. This shapefile was created through a participatory mapping process. During this process, stakeholders - including seaweed farmers, hatchery operators, and harvesters - delineated known seaweed beds using SeaSketch, a web-based GIS platform that provided base layers of shoreline maps and satellite imagery. Participants used the tool to draw polygons marking the location and species composition of beds. The SeaSketch polygons were exported to ArcGIS to create a usable data layer.

    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.

    Downloads & Resources

    Dates

    Metadata Date September 19, 2025
    Metadata Created Date July 26, 2025
    Metadata Updated Date September 27, 2025
    Reference Date(s) 2025 (creation), (publication)
    Frequency Of Update asNeeded

    Metadata Source

    Harvested from NMFS AKRO

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Date September 19, 2025
    Metadata Created Date July 26, 2025
    Metadata Updated Date September 27, 2025
    Reference Date(s) 2025 (creation), (publication)
    Responsible Party Alaska Regional Office (Point of Contact)
    Contact Email
    Guid gov.noaa.nmfs.inport:76159
    Access Constraints Cite As: Alaska Regional Office, [Date of Access]: Alaska Seaweed Source Inventory [Data Date Range], https://www.fisheries.noaa.gov/inport/item/76159., Use Constraints: NOAA makes no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA cannot assume liability for any damages caused by any errors or omissions in these data., Distribution Liability: NOAA makes no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA cannot assume liability for any damages caused by any errors or omissions in these data.
    Bbox East Long -130.920252
    Bbox North Lat 61.148115
    Bbox South Lat 54.92603
    Bbox West Long -154.504748
    Coupled Resource
    Frequency Of Update asNeeded
    Harvest Object Id d5b5aed4-5b6a-446a-9413-b6351aab0072
    Harvest Source Id 4461dba7-fc74-401a-8a38-13caddf3aaa5
    Harvest Source Title NMFS AKRO
    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.
    Lineage
    Metadata Language eng
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": [[[-154.504748, 54.92603], [-130.920252, 54.92603], [-130.920252, 61.148115], [-154.504748, 61.148115], [-154.504748, 54.92603]]]}
    Progress
    Spatial Data Service Type
    Spatial Reference System EPSG::3338
    Spatial Harvester True
    Temporal Extent Begin 2024-06-01
    Temporal Extent End 2025-06-24

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