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NCCOS Metadata Library > CCMA > Biogeography > CINMS_Assessment >

Seagrass distribution off California

Data Set (DS)  |  National Centers for Coastal Ocean Science (NCCOS)
GUID: gov.noaa.nmfs.inport:39488  |  Updated: October 17, 2023  |  Published / External 
Summary
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Activity Log
Tech Environment
Data Quality
Lineage
Child Items
Catalog Details

Summary

Short Citation
National Centers for Coastal Ocean Science, 2024: Seagrass distribution off California, https://www.fisheries.noaa.gov/inport/item/39488.
Full Citation Examples

Abstract

These data are a compilation of currently available seagrass GIS data sets for the west coast of the United States. These data have been compiled from seventeen different data sources. The source data were acquired over a large range of time periods, at many different spatial resolutions using a variety of methods, including aerial photography, videography, multispectral sensors, sonar, and field surveys. Users are cautioned to use these data as only a regional view of seagrass locations. Areas without mapped seagrass may contain seagrass, but digital data were unavailable during this data compilation

Distribution Information

Access Constraints:

None

Use Constraints:

Before using the data for Morro Bay,California, users must contact Morro Bay National Estuary Program at 805-772-3834.

Controlled Theme Keywords

BENTHIC, COMMUNITY STRUCTURE, DYNAMIC VEGETATION/ECOSYSTEM MODELS, ECOSYSTEM FUNCTIONS, environment, ENVIRONMENTAL ASSESSMENTS, oceans, PELAGIC, SEAGRASS, USE/FEEDING HABITATS

Child Items

Type Title
Entity sav

Contact Information

Point of Contact
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov

Metadata Contact
NCCOS Scientific Data Coordinator
NCCOS.data@noaa.gov

Extents

Geographic Area 1

-124.872366° W, -116.356753° E, 49.027892° N, 32.566836° S

Time Frame 1
1987 - 2003

Item Identification

Title: Seagrass distribution off California
Short Name: sav.shp
Status: Completed
Publication Date: 2006-01
Abstract:

These data are a compilation of currently available seagrass GIS data sets for the west coast of the United States. These data have been compiled from seventeen different data sources. The source data were acquired over a large range of time periods, at many different spatial resolutions using a variety of methods, including aerial photography, videography, multispectral sensors, sonar, and field surveys. Users are cautioned to use these data as only a regional view of seagrass locations. Areas without mapped seagrass may contain seagrass, but digital data were unavailable during this data compilation
Purpose:

These data were developed for Pacific States Marine Fisheries Commission in cooperation with the National Marine Fisheries Service Northwest Region and the Pacific Fishery Management Council in support of an Environmental Impact Statement (EIS) to consider the designation and conservation of Essential Fish Habitat (EFH) for Pacific Coast Groundfish. These data were consolidated and integrated in a GIS format to support spatially explicit groundfish habitat modelling and impacts assessment on a coastwide scale.For this project, these data were used to examine the spatial distribution of seagrasses in context with a comprehensive biogeographic analysis of natural resources within southern California.
Notes:

294
Supplemental Information:

Users are cautioned to use these data as only a regional view of seagrass locations. Areas without mapped seagrass may contain seagrass, but digital data were unavailable during this data compilation.

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > ANGIOSPERMS (FLOWERING PLANTS) > MONOCOTS > SEAGRASS
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > COMMUNITY DYNAMICS > COMMUNITY STRUCTURE
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > SPECIES/POPULATION INTERACTIONS > USE/FEEDING HABITATS
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > BENTHIC
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > MARINE ECOSYSTEMS > PELAGIC
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT > ENVIRONMENTAL ASSESSMENTS
Global Change Master Directory (GCMD) Service Keywords
EARTH SCIENCE SERVICES > MODELS > DYNAMIC VEGETATION/ECOSYSTEM MODELS
ISO 19115 Topic Category
environment
ISO 19115 Topic Category
oceans
UNCONTROLLED
Global Change Master Directory (GCMD) Data Center Keywords DOC/NOAA/NOS/NCCOS > National Centers for Coastal Ocean Science, National Ocean Service, NOAA, U.S. Department of Commerce
NOS Data Explorer Topic Category Environmental Monitoring
None eelgrass
None essential fish habitat (EFH)
None estuarine
None marine
None Phyllospadix sp.
None seafloor
None seagrass
None surfgrass
None Zostera spp.

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CALIFORNIA
UNCONTROLLED
None California
None Northwest Pacific Ocean
None Oregon
None Washington
None west coast

Physical Location

Organization: National Centers for Coastal Ocean Science
City: Silver Spring
State/Province: MD

Data Set Information

Data Set Scope Code: Data Set
Maintenance Frequency: Unknown
Data Presentation Form: vector digital data
Distribution Liability:

These data were prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Any views and opinions expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. Although all data have been used by NOAA, no warranty, expressed or implied, is made by NOAA as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by NOAA in the use of these data or related materials.
Data Set Credit: Cooperators and funders who contributed to development of these data, include Pacific States Marine Fisheries Commission, and National Marine Fisheries Service, Northwest Fisheries Science Center, Southwest Fisheries Science Center, Northwest Region, and Southwest Region.

Support Roles

Data Steward

CC ID: 472214
Date Effective From: 2006-01
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Distributor

CC ID: 472216
Date Effective From: 2006-01
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Metadata Contact

CC ID: 472217
Date Effective From: 2006-01
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Point of Contact

CC ID: 472215
Date Effective From: 2006-01
Date Effective To:
Contact (Position): NCCOS Scientific Data Coordinator
Email Address: NCCOS.data@noaa.gov

Principal Investigator

CC ID: 472218
Date Effective From: 2006-01
Date Effective To:
Contact (Person): Clark, Randy
Address: 1021 Balch Blvd
Stennis Space Center, MS 39529
Email Address: randy.clark@noaa.gov
Phone: 228-688-3732

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 472221
W° Bound: -124.872366
E° Bound: -116.356753
N° Bound: 49.027892
S° Bound: 32.566836

Extent Group 1 / Time Frame 1

CC ID: 472220
Time Frame Type: Range
Start: 1987
End: 2003

Spatial Information

Spatial Representation

Representations Used

Vector: Yes

Vector Representation 1

CC ID: 585827
Complex Object Present?: Yes
Complex Object Count: 338507

Access Information

Security Class: Unclassified
Data Access Constraints:

None
Data Use Constraints:

Before using the data for Morro Bay,California, users must contact Morro Bay National Estuary Program at 805-772-3834.

Distribution Information

Distribution 1

CC ID: 472222
Download URL: http://coastalscience.noaa.gov/datasets/ccma/biogeo/cinms/Chap_2_Data/SAV.zip
Distributor:
Description:

Downloadable Data
File Type (Deprecated): ESRI Shape File
Distribution Format: Shapefile
File Size: 72
Compression: Uncompressed

URLs

URL 1

CC ID: 472210
URL: http://coastalscience.noaa.gov/datasets/ccma/biogeo/cinms/Chap_2_Data/SAV.zip
URL Type:
Online Resource

URL 2

CC ID: 472211
URL: http://ccma.nos.noaa.gov/products/biogeography/cinms/data/
URL Type:
Online Resource

URL 3

CC ID: 472212
URL: http://ccma.nos.noaa.gov/ecosystems/sanctuaries/chanisl_nms/
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 472241
Activity Date/Time: 2014-03-19
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 472240
Activity Date/Time: 2017-04-05
Description:

Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 585825
Activity Date/Time: 2017-09-13
Description:

Partial upload of Spatial Info section only.

Activity Log 4

CC ID: 601393
Activity Date/Time: 2017-11-01
Description:

Replaced entire Lineage section to populate new Source Contribution field.

Activity Log 5

CC ID: 716734
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Technical Environment

Description:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535

Data Quality

Accuracy:

Attributes for source data sets were not validated. A quick visual review of merged data set was performed to assure that merging functions correctly retained attributes from source data.
Horizontal Positional Accuracy:

Horizontal positional accuracy was not assessed. Positional accuracy is dependent upon each of the source data sets.
Completeness Report:

These data are by no means comprehensive for the entire West Coast. The data are generally more concentrated in populated areas that have been the focus of eelgrass studies and mapping project. Eelgrass areas have been the subject of many mapping projects, however surfgrass has only been mapped in a couple projects. Because a comprehensive coastwide survey has not been conducted for seagrass, it is difficult to know where the data gaps are.
Conceptual Consistency:

Data are compiled from seventeen different data sources. These source data were created using a large variety of technologies, including aerial photography, underwater videography, aerial videography, aerial multispectral sensors, sonars (single beam, multibeam, and side-scan) and field surveys. Along with the multitude of data collection technologies, there were a multitude of spatial resolutions, georeferencing accuracies, and verification techniques.

Lineage

Sources

Alamitos Eelgrass July 2000

CC ID: 601398
Contact Name: Wetlands Support. Data provided by NOAA, National Marine Fisheries Service, Southwest Region, Bryant Chesney, bryant.chesney@noaa.gov
Publish Date: 2004-01-01
Extent Type: Discrete
Extent Start Date/Time: 2000
Source Contribution:

Provide eelgrass polygons for Alamitos Bay, California. | Source Geospatial Form: vector digital data | Type of Source Media: CD-ROM

Baywide Eelgrass, San Francisco Bay, California

CC ID: 601396
Contact Name: Merkel and Associates. Provided by NOAA, National Marine Fisheries Service, Restoration Center, Santa Rosa, California -- Natalie Cosentino-Manning, (707)-575-6081, natalie.c-manning@noaa.gov
Publish Date: 2004-04-10
Extent Type: Discrete
Extent Start Date/Time: 2003
Source Contribution:

Provide current eelgrass polygons for San Francisco Bay, California | Source Geospatial Form: vector digital data | Type of Source Media: digital files provided by e-mail

Eelgrass for King County, Washington

CC ID: 601406
Contact Name: King County Department of Natural Resources, Seattle, Washington and Battelle Marine Sciences Lab, Sequim, Washington. Provided by Amy Borde, (360)-681-3663, amy.borde@pnl.gov
Extent Type: Discrete
Extent Start Date/Time: 1999
Source Contribution:

Provide eelgrass polygons for King County, Washington | Source Geospatial Form: digital vector data | Type of Source Media: digital files provided via e-mail

Eelgrass in Hood Canal, WA (hc_f1_7_3nov)

CC ID: 601407
Contact Name: Earth Design Consultants, Inc., Wetland and Watershed Assessment Group, Corvallis, Oregon and Point No Point Treaty Council, Kingston, WA
Publish Date: 2003-11-03
Extent Type: Discrete
Extent Start Date/Time: 2000-07
Citation URL: http://www.pnptc.org/
Source Contribution:

Provide eelgrass polygons for Hood Canal, Washington | Source Geospatial Form: raster digital data | Type of Source Media: CD-ROM

Eelgrass Inventories for South Slough National Estuarine Research Reserve (SSNERR)

CC ID: 601404
Contact Name: South Slough National Estuarine Research Reserve. Data provided by Ecotrust, Michele Dailey, michele@ecotrust.org
Publish Date: 1995-01-01
Extent Type: Discrete
Extent Start Date/Time: 1991-04
Source Contribution:

Provide eelgrass polygons for South Slough NERR, Oregon | Source Geospatial Form: vector digital data | Type of Source Media: digital data downloaded via ftp

Environmental Sensitivity Index (ESI) Atlas for Northern and Southern California and San Francisco Bay

CC ID: 601402
Contact Name: NOAA, National Ocean Service, Office of Response and Restoration, Hazardous Materials Response Division, Seattle, Washington and the State of California, Department of Fish and Game, Office of Spill Prevention and Response, Sacramento, California. Data from San Francisco Bay Watershed Database and Mapping Project CD-ROM (Release 2), NOAA, Office of Response and Restoration, Coastal Protection and Restoration Division, Michelle Jacobi, (206)-526-6830, michele.jacobi@noaa.gov
Publish Date: 2003-01-01
Extent Type: Discrete
Extent Start Date/Time: 1994
Source Contribution:

Provide seagrass polygons for northern and southern California | Source Geospatial Form: vector digital data | Type of Source Media: CD-ROM

Humboldt Bay Eelgrass

CC ID: 601394
Contact Name: California Department of Fish and Game, Marine Region, Eureka, California. Provided by John Mello, Associate Marine Biologist, (707)-441-5755, jmello@dfg.ca.gov
Publish Date: 2004-01-01
Extent Type: Discrete
Extent Start Date/Time: 2000
Citation URL: http://www.pnptc.org/
Source Contribution:

These data were obtained to examine seagrass distribution off California. | Source Geospatial Form: vector digital data | Type of Source Media: CD-ROM

Image Eelgrass for Tillamook Bay

CC ID: 601405
Contact Name: Earth Design Consultants
Publish Date: 1996-01-01
Extent Type: Discrete
Extent Start Date/Time: 1995-07-14
Citation URL: http://www.co.tillamook.or.us/gov/gis/download/metadata/eelgrass.htm
Source Contribution:

Provide eelgrass polygons for Tillamook Bay | Source Geospatial Form: raster digital data | Type of Source Media: digital file downloaded via ftp

Maximum Historical Eelgrass Extent, San Francisco Bay, California

CC ID: 601397
Contact Name: Caltrans, NOAA Fisheries, and Merkel and Associates. Provided by NOAA, National Marine Fisheries Service, Restoration Center, Santa Rosa, California -- Natalie Cosentino-Manning, (707)-575-6081, natalie.c-manning@noaa.gov
Publish Date: 2004-04-10
Source Contribution:

Provide maximum historical eelgrass polygons for San Francisco Bay, California | Source Geospatial Form: vector digital data | Type of Source Media: digital files provided by e-mail

Morro Bay Eelgrass

CC ID: 601395
Contact Name: Morro Bay National Estuary Program. Provided by Ann Kitajima, (805)-772-3834.
Publish Date: 2000-01-01
Extent Type: Discrete
Extent Start Date/Time: 2000
Source Contribution:

Provide seagrass polygons for Morro Bay, California | Source Geospatial Form: vector digital data | Type of Source Media: digital files provided by e-mail

Puget Sound Environmental Atlas -- Eelgrass

CC ID: 601408
Contact Name: Puget Sound Action Team. Provided by John Dohrmann, jdohrmann@psat.wa.gov
Publish Date: 1992-01-01
Source Contribution:

Provide eelgrass polygons for Puget Sound, Washington | Source Geospatial Form: vector digital data | Type of Source Media: CD-ROM

San Diego Bay 2000 Eelgrass Survey

CC ID: 601399
Contact Name: U.S. Navy SWDIV Naval Facilities Engineer Command and Port of San Diego. Data provided by NOAA, National Marine Fisheries Service, Southwest Region, Bryant Chesney, bryant.chesney@noaa.gov
Publish Date: 2000-01-01
Extent Type: Discrete
Extent Start Date/Time: 2000
Source Contribution:

Provide eelgrass polygons for San Diego, California | Source Geospatial Form: vector digital data | Type of Source Media: CD-ROM

The Oregon Estuary Plan Book -- estuarine habitats

CC ID: 601403
Contact Name: Robert Cortright, Jeffery Weber, Robert Bailey, Oregon Department of Land Conservation and Development, Salem, Oregon
Publish Date: 1987-01-01
Citation URL: http://www.inforain.org/
Source Contribution:

Provide seagrass polygons for Oregon estuaries | Source Geospatial Form: vector digital data | Type of Source Media: digital data downloaded from website

Tomales Bay Eelgrass, 1992, 2000, 2001-2002

CC ID: 601401
Contact Name: California Department of Fish and Game. Data from San Francisco Bay Watershed Database and Mapping Project CD-ROM (Release 2), NOAA, Office of Response and Restoration, Coastal Protection and Restoration Division, Michelle Jacobi, (206)-526-6830, michele.jacobi@noaa.gov
Publish Date: 2003-01-01
Extent Type: Discrete
Extent Start Date/Time: 1992
Source Contribution:

Provide current and historical eelgrass polygons for Tomales Bay, California | Source Geospatial Form: vector digital data | Type of Source Media: CD-ROM

Vegetation of the San Diego Region Nearshore Coastal Zone

CC ID: 601400
Contact Name: KTU+A
Publish Date: 2003-12-01
Extent Type: Range
Extent Start Date/Time: 2002-10-04
Extent End Date/Time: 2002-10-06
Citation URL: http://sccoos.ucsd.edu/nearshore/
Source Contribution:

Provide seagrass polygons for shallow (0-10 m depth) marine areas between Dana Point and San Diego, California | Source Geospatial Form: vector digital data | Type of Source Media: digital files downloaded from website

Process Steps

Process Step 1

CC ID: 601409
Description:

Each individual data set was converted to ArcInfo coverage format, projected to Albers projection, and all polygons other than seagrass polygons were deleted. Individual seagrass coverages were combined, using ArcInfo UNION command, into a single coastwide coverage. Seagrass type, source, and data year attributes were populated.
Process Date/Time: 2004-01-01 00:00:00
Source: Humboldt Bay Eelgrass

Child Items

Rubric scores updated every 15m

Rubric Score Type Title
Entity sav

Catalog Details

Catalog Item ID: 39488
GUID: gov.noaa.nmfs.inport:39488
Metadata Record Created By: Tyler Christensen
Metadata Record Created: 2017-04-05 12:52+0000
Metadata Record Last Modified By: SysAdmin InPortAdmin
Metadata Record Last Modified: 2023-10-17 16:12+0000
Metadata Record Published: 2018-07-12
Owner Org: NCCOS
Metadata Publication Status: Published Externally
Do Not Publish?: N
Metadata Last Review Date: 2018-07-12
Metadata Review Frequency: 1 Year
Metadata Next Review Date: 2019-07-12