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Short Citation:
NMFS Office Of Protected Resources, 2023: Humpback Whale (Western North Pacific DPS),

Item Identification

Title: Humpback Whale (Western North Pacific DPS)
Publication Date: 2021-04-21

Critical habitat for the Western North Pacific DPS of humpback whales includes all marine waters within these designated areas:(1) Alaska. The nearshore boundaries are generally defined by the 1-m isobath relative to mean lower low water (MLLW). On the north side of the Aleutian Islands, the seaward boundary of the critical habitat is defined by a line extending due west from 55° 41' N, 162° 41' W to 55° 41' N, 169° 30' W, then southward through Samalga Pass to a boundary drawn along the 2,000-m isobath on the south side of the islands. This isobath forms the southern boundary of the critical habitat, eastward to 164° 25' W. From this point, the 1,000-m isobath forms the offshore boundary, which extends eastward to 158° 39' W. Critical habitat also includes the waters around Kodiak Island and the Barren Islands. The western boundary for this area runs southward along 154° 54' W to the 1,000-m depth contour, and then extends eastward to a boundary at 150° 40' W. The area also extends northward to the mouth of Cook Inlet where it is bounded by a line that extends from Cape Douglas across the inlet to Cape Adam. Critical habitat does not include manmade structures (e.g., ferry docks, sea plane facilities) and the land on which they rest within the critical habitat boundaries.Please see the final rule for additional information.


Spatial data for designated critical habitat of the humpback whale (Western North Pacific DPS) published in 86 FR 21082 on April 21, 2021.


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ISO 19115 Topic Category
ISO 19115 Topic Category

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: Map (digital)
Data Set Credit: Authors: Robert O'Conner (Fishery Information Specialist, NMFS Pacific Islands Region), Karen Kavanaugh (Oceanographer, NOS Center for Operational Oceanographic Products and Services), and Jennifer Schultz (Fishery Biologist, NMFS Office of Protected Resources)

Support Roles

Data Steward

CC ID: 1167863
Date Effective From: 2022-04-14
Date Effective To:
Contact (Person): Schultz, Jennifer
Email Address:

Metadata Contact

CC ID: 1083801
Date Effective From: 2021-04-21
Date Effective To:
Contact (Person): Molineaux, Jonathan
Address: 1315 East West Hwy
Silver Spring, MD 20910
Email Address:
Phone: 301-427-8440

Point of Contact

CC ID: 1083800
Date Effective From: 2021-04-21
Date Effective To:
Contact (Person): Molineaux, Jonathan
Address: 1315 East West Hwy
Silver Spring, MD 20910
Email Address:
Phone: 301-427-8440


Currentness Reference: Publication Date

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1083803
W° Bound: -169.501373
E° Bound: -150.649633
N° Bound: 59.334891
S° Bound: 52.313246

Spatial Information

Reference Systems

Reference System 1

CC ID: 1083797

Coordinate Reference System

CRS Type: Geographic 2D
EPSG Code: EPSG:4326
EPSG Name: WGS 84
See Full Coordinate Reference System Information

Access Information

Security Class: Unclassified
Data Use Constraints:

These data are not the official legal definition of critical habitat. The Code of Federal Regulations (50 CFR 226.227) is the source for the legal definition of the critical habitat designation. These data should not be used for enforcement or navigation.

Technical Environment


Version 6.2 (Build 9200) ; Esri ArcGIS

Child Items

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Rubric Score Type Title
Entity WhaleHumpback_WesternNorthPacificDPS_20210421

Catalog Details

Catalog Item ID: 65379
GUID: gov.noaa.nmfs.inport:65379
Metadata Record Created By: Jonathan Molineaux
Metadata Record Created: 2021-08-31 21:01+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-05-30 18:10+0000
Metadata Record Published: 2022-04-18
Owner Org: OPR
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2022-04-18
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2023-04-18