Alaska_Seaweed_Source_Inventory (FeatureServer)

View In: Map Viewer

Service Description: For seaweed aquaculture in Alaska, the 50-50 rule is a critical consideration. Implemented by the Alaska Department of Fish & Game (ADF&G) as a guidance for farmers to help maintain and preserve genetic diversity, the rule recommends that spores from at least 50-60 wild kelp plants be collected within 50 km of a farm site each year. As a result, the locations of wild kelp beds directly influence the suitability of areas for commercial farm siting under the 50-50 rule. To support current and prospective farmers meeting the 50-50 rule, this seaweed source inventory data layer was created through a participatory mapping process.

Service ItemId: 173f573cdd7c43f8b31cf27119f11f89

Has Versioned Data: false

Max Record Count: 2000

Supported query Formats: JSON

Supports applyEdits with GlobalIds: False

Supports Shared Templates: True

All Layers and Tables

Layers:

Alaska Seaweed Beds (0)

Description:

These data are part of Alaska's Aquaculture Opportunity Areas (AOAs) effort for environmental characterization and developing a seaweed source inventory. These data depict seaweed beds mapped during 2024–2025 in AOA study areas and are provided in ESRI shapefile format for NOAA Fisheries. 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.

Copyright Text: NOAA Fisheries Service

Spatial Reference: 102006 (3338)

Initial Extent:

Full Extent:

Units: esriMeters

Child Resources: Info SharedTemplates

Supported Operations: Query ConvertFormat Get Estimates