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Aleutian Islands Coastal Resources Inventory and Environmental Sensitivity Maps: M_MAMMAL (Marine Mammal Polygons)

Published by Office of Response and Restoration | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 08, 2025 | Last Modified: 2002-05-01T00:00:00.000+00:00
This data set contains biological resource data for sea otters and walrus in the Aleutian Islands, Alaska. Vector polygons in this data set represent locations of marine mammal concentrations. Species-specific abundance, seasonality, status, life history, and source information are stored in relational data tables (described below) designed to be used in conjunction with this spatial data layer.This data set comprises a portion of the Environmental Sensitivity Index (ESI) data for Aleutians East Borough and Aleutians West Coastal Resource Service Area (CRSA). These data identify the marine and coastal environments and wildlife. The ESI data include information for three main components: shoreline habitats, sensitive biological resources, and human-use resources. See also the M_MAMPT (Marine Mammal Points) data layer, part of the larger Aleutians East/Aleutians West ESI database, for haulout and rookery sites for seals and seal lions..

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