Seagrasses
Identification Information
Content Information
Distribution Information
Data Quality Information

Metadata: 
  File identifier: 
      gov.noaa.nmfs.inport:56960
  Language: 
    Language Code: 
      eng
  Character set: 
    Character set code: 
      UTF8
  Hierarchy level: 
    Scope code: 
      dataset
  Metadata author: 
    Responsible party: 
      Organisation name: 
          Office for Coastal Management
      Contact info: 
        Contact: 
          Phone: 
            Telephone: 
              Voice: 
                missing
          Address: 
            Address: 
      Role: 
        Role code: 
          resourceProvider
  Date stamp: 
      2024-08-15T16:26:35
  Metadata standard name: 
      ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
  Metadata standard version: 
      ISO 19115-2:2009(E)
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Identification info: Data identification: Citation: Citation: Title: Seagrasses Date: Date: Date: 2022-06-27 Date type: Date type code: publication Identifier: Identifier: Authority: Citation: Title: NOAA/NMFS/EDM Date: inapplicable Code: Anchor: xlink: https://www.fisheries.noaa.gov/inport/item/56960 title: InPort Catalog ID 56960 Cited responsible party: Responsible party: Organisation name: inapplicable Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.fisheries.noaa.gov/inport/item/56960 Protocol: WWW:LINK-1.0-http--link Name: Full Metadata Record Description: View the complete metadata record on InPort for more information about this dataset. Function: Online function code: information Role: inapplicable Abstract: These data show aquatic vascular vegetation beds dominated by submerged, rooted, vascular species or submerged or rooted floating freshwater tidal vascular vegetation. This is not a complete collection of seagrasses on the seafloor, nor are the locations to be considered exact. The presence and location of the seagrasses have been derived from multiple state and federal sources. Purpose: To support ocean planning activities pursuant to the Executive Order Regarding the Ocean Policy to Advance the Economic, Security, and Environmental Interests of the United States, the Energy Policy Act, the National Environmental Policy Act, the Rivers and Harbors Act, and the Coastal Zone Management Act. Credit: NOAA Office for Coastal Management, Bureau of Ocean Energy Management Status: Progress code: completed Point of contact: Responsible party: Organisation name: Office for Coastal Management Contact info: Contact: Phone: Telephone: Voice: missing Address: Address: Delivery point: 2234 South Hobson Avenue City: Charleston Administrative area: SC Postal code: 29405-2413 Country: missing Electronic mail address: missing Online Resource: Online Resource: Linkage: URL: https://www.coast.noaa.gov/ Protocol: WWW:LINK-1.0-http--link Name: Office for Coastal Management Website Description: Website listed for Office for Coastal Management Function: Online function code: information Role: Role code: pointOfContact Resource maintenance: Maintenance information: Maintenance and update frequency: Maintenance frequency code: asNeeded Descriptive keywords: Keywords: Keyword: EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT Type: Keyword type code: theme Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Science Keywords Date: missing Edition: 17.0 Descriptive keywords: Keywords: Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA Type: Keyword type code: place Thesaurus name: Citation: Title: Global Change Master Directory (GCMD) Location Keywords Date: missing Edition: 17.0 Descriptive keywords: Keywords: Keyword: aquatic vegetation Keyword: benthic Keyword: brackish Keyword: eelgrass Keyword: freshwater Keyword: herbaceous Keyword: macroalgae Keyword: oceans Keyword: oyster bed Keyword: seagrass Keyword: surfgrass Keyword: tidal Keyword: turf algal bed Keyword: vascular Type: Keyword type code: theme Descriptive keywords: Keywords: Keyword: Alabama Keyword: Alaska Keyword: CNMI Keyword: California Keyword: Commonwealth of the Northern Keyword: Connecticut Keyword: East Coast Keyword: Florida Keyword: Guam Keyword: Gulf of Mexico Keyword: Louisiana Keyword: Maine Keyword: Maryland Keyword: Massachusetts Keyword: Mississippi Keyword: New Hampshire Keyword: New Jersey Keyword: New York Keyword: North Carolina Keyword: Oregon Keyword: Rhode Island Keyword: Territorial Sea Keyword: Texas Keyword: United States of America Keyword: Virginia Keyword: Washington Type: Keyword type code: place Descriptive keywords: Keywords: Keyword: DOC/NOAA/NOS/OCM > Office of Coastal Management, National Ocean Service, NOAA, U.S. Department of Commerce Type: Keyword type code: dataCentre Thesaurus name: Citation: uuid: 9f0de6e6-428b-11df-9879-0800200c9a66 Title: Global Change Master Directory (GCMD) Data Center Keywords Date: Date: Date: 2017-04-24 Date type: Date type code: publication Edition: 8.5 Cited responsible party: xlink: https://data.noaa.gov/docucomp/1edb41d0-428a-11df-9879-0800200c9a66 title: GCMD Landing Page Descriptive keywords: Keywords: Keyword: MarineCadastre Type: Keyword type code: project Thesaurus name: Citation: Title: InPort Date: inapplicable Resource constraints: Legal constraints: Use constraints: Restriction code: otherRestrictions Other constraints: Cite As: Office for Coastal Management, [Date of Access]: Seagrasses [Data Date Range], https://www.fisheries.noaa.gov/inport/item/56960. Resource constraints: Constraints: Use limitation: NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. Resource constraints: Legal constraints: Use constraints: Restriction code: otherRestrictions Other constraints: Use Constraints: For coastal and ocean planning Resource constraints: Legal constraints: Use limitation: Restriction code: otherRestrictions Other constraints: Distribution Liability: https://www.marinecadastre.gov/about/disclaimer.html Resource constraints: Security constraints: Classification: Classification code: unclassified Classification system: missing Handling description: missing Aggregation Info: AggregateInformation: Aggregate Data Set Name: Citation: Title: NOAA Data Management Plan (DMP) Date: unknown Identifier: Identifier: Authority: Citation: Title: NOAA/NMFS/EDM Date: inapplicable Code: 56960 Cited responsible party: Responsible party: Organisation name: inapplicable Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ocm/dmp/pdf/56960.pdf Protocol: WWW:LINK-1.0-http--link Name: NOAA Data Management Plan (DMP) Description: NOAA Data Management Plan for this record on InPort. Function: Online function code: information Role: inapplicable Association Type: Association type code: crossReference Language: eng; US Topic category: Topic category code: biota Topic category: Topic category code: environment Topic category: Topic category code: oceans Extent: Extent: Geographic element: Geographic bounding box: West bound longitude: -166.28616 East bound longitude: 145.78099 South bound latitude: 13.237632 North bound latitude: 60.386899 Temporal element: Temporal extent: Extent: Time instant: Description: publication date | Currentness: Publication Date Time position: 2022 Supplemental Information: Bureau Code: 006:48, Program Code: 006:055
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Content info: Feature catalogue description: Compliance code: false Language: Language Code: eng Included with dataset: false Feature types: GIS File Feature catalogue citation: xlink: https://www.fisheries.noaa.gov/inport/item/56961 Citation: Title: Seagrasses in the United States Date: Date: Date: 2019-07-17 Date type: Date type code: publication
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Distribution info: Distribution: Transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://marinecadastre.gov/data/ Protocol: WWW:LINK-1.0-http--link Name: https://marinecadastre.gov/data/ Description: Marine Cadastre Data Registry Function: Online function code: download Transfer options: Digital transfer options: Online: Online Resource: Linkage: URL: https://marinecadastre.gov/downloads/data/mc/Seagrass.zip Protocol: WWW:LINK-1.0-http--link Name: https://marinecadastre.gov/downloads/data/mc/Seagrass.zip Description: missing Function: Online function code: download
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Data quality info: Data quality: Scope: Scope: Hierarchy level: Scope code: dataset Report: Quantitative attribute accuracy: Name of measure: Accuracy Evaluation method description: Untested Result: missing Report: Absolute external positional accuracy: Name of measure: Horizontal Positional Accuracy Evaluation method description: Compiled to meet 10 meters horizontal accuracy at 95% confidence level Result: missing Report: Completeness commission: Name of measure: Completeness Report Evaluation method description: Untested Result: missing Report: Conceptual consistency: Name of measure: Conceptual Consistency Evaluation method description: These data are logically consistent Result: missing Lineage: Lineage: Statement: missing Process step: Process step: Description: 1) Acquire original source data
                  
2) IMPORT each shapefile into a File Geodatabase
                  
3) PROJECT into NAD83
                  
4) DISSOLVE each state feature class based on all fields except Object ID, Acres, Shape Length, and Shape Area to remove data overlap
                  
5) EXPLODE all multipart features in each state feature class
                  
6) APPEND all state feature classes into a single feature class
                  
7) Check for overlapping features and MERGE into a single feature
                  
8) RENAME field names to match the the proposed data dictionary
                  
9) DELETE all superfluous fields
                  
10) Execute the CHECK GEOMETRY function Date and time: 2013-10-01T00:00:00 Process step: Process step: Description: 1) Acquire data from sources by URL download or email. Determine if the new source data supersedes existing national data set. DELETE the older, superseded features and replace with the newer source data
                  
2) MERGE new data sets and features into the former national data set, carrying over values from the necessary source fields that match the current data's schema
                  
3) For ShoreZone polyline features within the Washington state DNR data, features were buffered five feet in order to generate the polygon format required of this data set. In this case, coverage was denoted as 'Present', since the polygon does not represent the footprint of the seagrass here, just that it was present somewhere along this shoreline segment
                  
4) Convert the multipart layer to singlepart and then project into an equal area projection (example: USA Contiguous Albers Equal Area Conic). Add a new field called Acreage and calculate the geometry of the features. (Special note for the Washington state DNR data: per request of the source, the acreage values for the ShoreZone features were set to Null, and the acreage values for the SVMP features were derived from the source and not calculated separately.) Project the data back into NAD83
                  
5) Remove all unnecessary fields and populate others according to data dictionary
                  
6) Visually inspect older features for overlap with newer data. For example, if data from the 1970s within a small estuary is immediately adjacent to and overlapping data from 2016, remove the data from the 1970s
                  
7) Execute the REPAIR GEOMETRY function
                  
PLEASE NOTE: Per request of the Washington state DNR, the acreage values for the ShoreZone features were set to Null, and the acreage values for the SVMP features were derived from the source and not calculated separately Date and time: 2019-01-01T00:00:00 Process step: Process step: Description: 1) Acquire source data
                  
PLEASE NOTE: For Washington state, a large percentage of the state's coastline was designated as having seagrass based on a crosswalk between survey units (polygons) and shoreline seagrass status (polylines). Where polylines that were attributed as "seagrass present", polygons that intersected these line segments were extracted. While the resulting polygons (i.e. survey units) express that seagrass is found therein, it does not represent the footprint of the seagrass extent. Conversely, in some cases seagrass footprints were provided, such as in: Willapa Bay, Padilla Bay, and areas of Snohomish County. [Survey units originated from the Submerged Vegetation Monitoring Project (for Puget Sound and Strait of Juan de Fuca) and the Washington Marine Vegetation Atlas (for the Pacific coast). Shoreline status was provided by Washington state's ShoreZone inventory.]
                  
2) Polygon to polyline crosswalk (noted above) performed in Washington state
                  
3) Shoreline data (denoting seagrass presence) from California DFW was buffered by 20 meters to create polygons (i.e. generalized footprints)
                  
4) PROJECT each data set in NAD83 GRS 80
                  
5) ADD fields (date, provider, location) to each data set then populated
                  
6) ERASE data sets that overlap, and retain the newer data or data determined to be preferential to another
                  
7) MERGE all data sets
                  
8) Removed unnecessary fields and populated others according to data dictionary
                  
9) SPLIT merged data by UTM (zone 10 and 11), explode features, and CALCULATE area of polygons in acres
                  
10) MERGE data from both zones then execute the CHECK GEOMETRY function Date and time: 2015-03-01T00:00:00 Process step: Process step: Description: 1) Execute the REPAIR GEOMETRY function to remove null features and fix non-simple features
                  
2) Modify field names for usability, and to avoid common controlled vocabulary Date and time: 2022-06-26T00:00:00 Source: Source: Description: Source Contribution: Provided data for Florida, Hawaii, Puerto Rico, US Virgin Islands, Guam, and CNMI (all shallow coral ecosystems areas, nationally) Source citation: Citation: Title: BenthicCover Date: missing Cited responsible party: Responsible party: Organisation name: MarineCadastre.gov Contact info: Contact: Online Resource: Online Resource: Linkage: URL: ftp://ftp.coast.noaa.gov/pub/MSP/BenthicCover.zip Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source extent: Extent: Temporal element: Temporal extent: Extent: Time instant: Time position: 2017-01-01 Source: Source: Description: Source Contribution: Provided data for Alaska and Oregon Source citation: Citation: Title: BlueCarbon_2017_SHP Date: missing Cited responsible party: Responsible party: Organisation name: Commission for Environmental Cooperation (CEC) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: http://www.cec.org/sites/default/files/Atlas/Files/blue_carbon/BlueCarbon_2017_SHP.zip Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source: Source: Description: Source Contribution: Provided data for Massachusetts (data provided via email) Source citation: Citation: Title: CACO_Seagrass_CCS_surveys Date: missing Cited responsible party: Responsible party: Organisation name: National Park Service Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.nps.gov/index.htm Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source: Source: Description: Source Contribution: Provided data for Mississippi (data provided via email) Source citation: Citation: Title: Chand_2005 Date: missing Cited responsible party: Responsible party: Organisation name: NOAA Office for Coastal Management (NOAA/OCM) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://coast.noaa.gov/ Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: Role code: publisher Source extent: Extent: Temporal element: Temporal extent: Extent: Time instant: Time position: 2005-10-01 Source: Source: Description: Source Contribution: Provided data for Florida (data provided via email) Source citation: Citation: Title: Christiaen_et_al_2016 Date: missing Cited responsible party: Responsible party: Organisation name: Dauphin Island Sea Lab Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.disl.org/ Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source extent: Extent: Temporal element: Temporal extent: Extent: Time instant: Time position: 2016-01-01 Source: Source: Description: Source Contribution: Provided data for New York (data provided via email) Source citation: Citation: Title: FIIS_Seagrass Date: missing Cited responsible party: Responsible party: Organisation name: New York Governor's Office of Storm Recovery (GOSR) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://stormrecovery.ny.gov/ Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source extent: Extent: Temporal element: Temporal extent: Extent: Time instant: Time position: 2018-01-01 Source: Source: Description: Source Contribution: Provided data for New York (data provided via email) Source citation: Citation: Title: LISS2018d Date: missing Cited responsible party: Responsible party: Organisation name: University of Rhode Island Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.uri.edu/ Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source extent: Extent: Temporal element: Temporal extent: Extent: Time instant: Time position: 2018-01-01 Source: Source: Description: Source Contribution: Provided data for California (data provided via email) Source citation: Citation: Title: NoCA_estuaries Date: missing Cited responsible party: Responsible party: Organisation name: California Department of Fish and Wildlife Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.wildlife.ca.gov/ Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source: Source: Description: Source Contribution: Provided data for California, Oregon, and Washington Source citation: Citation: Title: PMEP_West_Coast_Eelgrass_V1 Date: missing Cited responsible party: Responsible party: Organisation name: Pacific Marine and Estuarine Fish Habitat Partnership (PMEP) Contact info: Contact: Online Resource: Online Resource: Linkage: URL: http://www.pacificfishhabitat.org/data/west-coast-usa-eelgrass-habitat/ Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source: Source: Description: Source Contribution: Provided data for Alabama (data provided via email) Source citation: Citation: Title: SAV2015 Date: missing Cited responsible party: Responsible party: Organisation name: Dauphin Island Sea Lab Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.disl.org/ Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source extent: Extent: Temporal element: Temporal extent: Extent: Time instant: Time position: 2015-01-01 Source: Source: Description: Source Contribution: Provided SVMP and ShoreZone data for Washington (data provided via email) Source citation: Citation: Title: SVMPdata_2000-2017 Date: missing Cited responsible party: Responsible party: Organisation name: Washington State Department of Natural Resources Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://www.dnr.wa.gov/ Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source: Source: Description: Source Contribution: Provided source data originally received directly from sources via email or downloaded online, for previously developed national data set. Source citation: Citation: Title: Seagrasses Date: missing Cited responsible party: Responsible party: Organisation name: California National Marine Fisheries Service Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://marinecadastre.gov/data/ Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source: Source: Description: Source Contribution: Provided data for Rhode Island Source citation: Citation: Title: Submerged_Aquatic_Vegetation_2016 Date: missing Cited responsible party: Responsible party: Organisation name: Rhode Island Geographic Information System Contact info: Contact: Online Resource: Online Resource: Linkage: URL: http://www.rigis.org/datasets/submerged-aquatic-vegetation-sav-in-ri-coastal-waters-2016 Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source: Source: Description: Source Contribution: Provided data for Massachusetts Source citation: Citation: Title: eelgrass2015_2017 Date: missing Cited responsible party: Responsible party: Organisation name: Massachusetts Department of Environmental Protection Contact info: Contact: Online Resource: Online Resource: Linkage: URL: http://download.massgis.digital.mass.gov/shapefiles/state/eelgrass2015_2017.zip Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source: Source: Description: Source Contribution: Provided data for Virginia Source citation: Citation: Title: sav2016 Date: missing Cited responsible party: Responsible party: Organisation name: Virginia Institute of Marine Science Contact info: Contact: Online Resource: Online Resource: Linkage: URL: http://web.vims.edu/bio/sav/gis_data.html Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source extent: Extent: Temporal element: Temporal extent: Extent: Time instant: Time position: 2016-01-01 Source: Source: Description: Source Contribution: Provided data for Florida Source citation: Citation: Title: seagrass_fl_poly Date: missing Cited responsible party: Responsible party: Organisation name: Florida Fish and Wildlife Conservation Commission Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://myfwc.com/research/habitat/seagrasses/ Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source: Source: Description: Source Contribution: Provided data for Florida Source citation: Citation: Title: sg_16_springscoast Date: missing Cited responsible party: Responsible party: Organisation name: Southwest Florida Water Management District Contact info: Contact: Online Resource: Online Resource: Linkage: URL: ftp://ftp.swfwmd.state.fl.us/pub/gisdata/swim/sg16_springscoast.zip Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source extent: Extent: Temporal element: Temporal extent: Extent: Time instant: Time position: 2016-01-01 Source: Source: Description: Source Contribution: Provided data for Texas Source citation: Citation: Title: tpwd-seagrass Date: missing Cited responsible party: Responsible party: Organisation name: Texas Parks and Wildlife Department Contact info: Contact: Online Resource: Online Resource: Linkage: URL: https://tpwd.texas.gov/gis/resources/tpwd-seagrass.zip Protocol: WWW:LINK-1.0-http--link Name: Source Online Linkage Description: URL where the source data were originally accessed. Function: Online function code: information Role: inapplicable Source extent: Extent: Temporal element: Temporal extent: Extent: Time instant: Time position: 2012-01-01
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