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NMFS Office Of Protected Resources, 2023: Chum Salmon (Hood Canal summer-run ESU) polygon,

Item Identification

Title: Chum Salmon (Hood Canal summer-run ESU) polygon
Publication Date: 2005-08-15

In nearshore marine areas, critical habitat includes areas contiguous with the shoreline from the line of extreme high water out to a depth no greater than 30 meters relative to mean lower low water.See the final rule (70 FR 52630) for descriptions of areas excluded from this critical habitat designation. Excluded Dept of Defense (DOD) lands and Indian lands were not clipped out of the data.


These data represent critical habitat designated (September 2, 2005, 70 FR 52630) under the Endangered Species Act for the Hood Canal summer-run chum salmon ESU.

These nearshore (polygon) data should be used in conjunction with river/stream (line) data in the SalmonChum_HoodCanalsummerrunESU_20050902_line feature class.


Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
ISO 19115 Topic Category
None chum salmon
None critical habitat

Spatial Keywords

Thesaurus Keyword
None Hood Canal
None Pacific Northwest
None Puget Sound
None Washington

Physical Location

City: Portland
State/Province: OR

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: As Needed
Data Presentation Form: Map (digital)
Data Set Credit: CREDIT: National Marine Fisheries Service, West Coast Region ORIGINATORS: Protected Resources Division, Northwest Region, National Marine Fisheries Service;

Support Roles

Metadata Contact

CC ID: 1081952
Date Effective From: 2005-08-15
Date Effective To:
Contact (Person): Dunn, Shanna
Email Address:

Point of Contact

CC ID: 1081951
Date Effective From: 2005-08-15
Date Effective To:
Contact (Person): Dunn, Shanna
Email Address:


Currentness Reference: Publication Date

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1081954
W° Bound: -123.187006
E° Bound: -122.5631
N° Bound: 48.185145
S° Bound: 47.329408

Spatial Information

Reference Systems

Reference System 1

CC ID: 1081948

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 226.212) is the source for the legal definition of the critical habitat designation.

Technical Environment


Version 6.2 (Build 9200) ; Esri ArcGIS

Data Quality

Completeness Report:

Clarifications only apply to this feature class.

Military areas ineligible for designation (qualifying INRMP): yes (not clipped)

Military areas excluded due to national security impacts: yes (not clipped)

Indian lands excluded: yes (not clipped)

Economic exclusions: none

Habitat Conservation Plan (HCP) exclusions: none

Unoccupied areas designated: none

Federal Register final rule page:

September 2, 2005, 70 FR 52676

For additional information and maps:

NMFS. 2005. Designation of Critical Habitat for West Coast Salmon and Steelhead - Final 4(b)(2) Report. NMFS Northwest Region Report. August 2005. 199 pp.2021-04-26T00:00:00Endangered Species Act critical habitat spatial data clarifications



Hydrologic Unit Boundaries for Oregon, Washington, and California

CC ID: 1081943
Contact Role Type: Originator
Contact Type: Organization
Contact Name: Regional Ecosystem Office
Source Contribution:

Hydrologic Unit Boundaries for Oregon, Washington, and California

NOAA Electronic Navigational Charts

CC ID: 1081941
Contact Role Type: Originator
Contact Type: Organization
Contact Name: National Oceanic and Atmospheric Administration
Source Contribution:

NOAA Electronic Navigational Charts

Puget Sound Digital Elevation Model

CC ID: 1081939
Source Contribution:

Puget Sound Digital Elevation Model

Washington ShoreZone Inventory Data Dictionary

CC ID: 1081940
Source Contribution:

Washington ShoreZone Inventory Data Dictionary

Water Resource Inventory Areas of Washington

CC ID: 1081942
Contact Role Type: Originator
Contact Type: Organization
Contact Name: Washington State Department of Ecology
Source Contribution:

Water Resource Inventory Areas of Washington

Process Steps

Process Step 1

CC ID: 1081944

Data creation process 2004 - 2005


1) Reclassify Puget Sound DEM. Original elevation measurements were in decimeters. We reclassified the elevation measurements to meters. Finlayson et al. 2000

2) Clip the WA State Saltwater Areas shapefile to the extent of the Puget Sound. WADNR 2001

3) Clip the Puget Sound DEM to the boundary of the Puget Sound. Finlayson et al. 2000; WADNR 2001

4) Derive the marine portion of the nearshore zone from the DEM. Query the clipped Puget Sound DEM for all values less than or equal to 0 meters and greater than or equal to -30 meters. Convert the results of the query into polygons. Finlayson et al. 2000

5) Edge match the polygons with the Puget Sound shoreline. WADNR 2001

6) Using the NOAA Electronic Navigational Charts (ENCs) to fill in the gap in the DEM. There is a gap of no data in the Puget Sound DEM that lies between the San Juan Islands and Bellingham Bay. We used the NOAA ENCs to estimate the area encompassed by the 30 meter bathymetry line. NOAA 2004

7) Identify units within the Puget Sound. We used watersheds (HUC5s) as our units in the freshwater habitat analysis, and decided that for the nearshore area analysis we would define our units based on groupings of HUC5s. We used WRIA and HUC5 boundaries to identify 19 units within the Puget Sound. Where the WRIAs meet the shoreline of the Puget Sound, we edge matched the WRIA boundaries to the HUC5 boundaries. REO 2002; ECY 2000

8) Divide the nearshore zone into 19 units. Overlay the nearshore zone with the 19 units to create the final data set.

9) Identify the subset of nearshore zones that are used by HCS chum salmon. Delete the areas that are not part of the HCS chum salmon ESU.

Process Step 2

CC ID: 1081945

cmhcs_nchf1.shp (NAD_1927_Albers) geographic transformation, unprojected -> CMHCS_ch_poly.shp (GCS_North_American_1983 wkid 4269).

Geometry was edited (features deleted), attributes were not edited, metadata was edited because it was blank (stored separately as html file "metadata_cmhcs_nchf1").

Deleted features that were not critical habitat from shapefile CMHCS_ch_poly.shp. Deleted features were those with

DESC_ = “Land, not part of nearshore marine area”

DESC_ = “Not part of nearshore marine area”

Features remaining in shapefile had

DESC_ = 'Offshore to a depth of 30 meters' (i.e., only features designated as critical habitat).

Process Date/Time: 2019-07-17 00:00:00

Process Step 3

CC ID: 1081946

The 2019 version CMHCS_ch_poly.shp (GCS_North_American_1983 wkid 4269) was converted into the standardized feature class SalmonChum_HoodCanalsummerrunESU_20050902_poly (GCS_WGS_84 wkid 4326) using the National Critical Habitat Geodatabase processing protocol.

During standardization, geometry was not edited. Attributes were edited. Metadata was edited and populated using the final rule and the 2005 html file "metadata_cmhcs_nchf1" that was stored separately from the source data in cmhcs_nchf1.shp (NAD_1927_Albers).

Migrated fields: "NS_ZONE" into "UNIT", "DESC_" into "NOTES"


Process Date/Time: 2021-04-26 00:00:00

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity SalmonChum_HoodCanalsummerrunESU_20050902_poly

Catalog Details

Catalog Item ID: 65301
GUID: gov.noaa.nmfs.inport:65301
Metadata Record Created By: Jonathan Molineaux
Metadata Record Created: 2021-08-31 20:53+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-05-30 18:10+0000
Metadata Record Published: 2022-04-14
Owner Org: OPR
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2022-04-14
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2023-04-14