North American Environmental Atlas - Blue Carbon (Seagrass Points)

Type  Shapefile

Tags  North America, América del Norte, Amérique du Nord, Seagrasses, Pastos marinos, Herbiers marins, Canada, Canadá, United States, Estados Unidos, États-Unis, Mexico, México, Mexique, CEC, CCA, CCE

Summary

The North American Blue Carbon map shows the distribution of salt marsh, mangrove, and seagrass habitats in North America. Although this dataset represents the most comprehensive North American spatial distribution of blue carbon to date, many seagrass and salt marsh habitats have yet to be mapped.

Description

The North American Blue Carbon map shows the distribution of salt marsh, mangrove, and seagrass habitats in North America.

Data were compiled from approximately 50 source datasets, including international (UNEP-WCMC), national (Conabio, US Geological Survey and the US National Wetlands Inventory), as well as state and provincial sources and information from individual investigators. This 2021 release represents the third update to the CEC’s mapping of blue carbon habitats, and was a priority within the Strengthening Adaptation Capacity in Marine Protected Areas project under the CEC’s 2019–2020 Operational Plan.

Although this release presents the most comprehensive picture of North American blue carbon spatial distribution at the time of publication, many seagrass and salt marsh habitats have yet to be mapped and efforts to do so are ongoing, with several pending updates underway.

Files Download

Credits

Commission for Environmental Cooperation (CEC). 2021. “North American Environmental Atlas - Blue Carbon (Seagrass)”. Ed. 2.0, Vector digital data [1:10,000,000].

Use limitations

This material is licensed under CC BY 4.0, allowing non-exclusive rights to distribute, remix, adapt, and build upon the material in any medium or format, including for commercial purposes, so long as attribution is given to the creator.

Extent

West  -180     East -50
North  85     South 14

Scale Range

Maximum (zoomed in)  1:5,000
Minimum (zoomed out)  1:150,000,000

Topics and Keywords 

Themes or categories of the resource Biota, Environment, Oceans

Content type Downloadable Data
Export to FGDC CSDGM XML format as Resource Description No

Theme keywords North American Environmental Atlas > Marine Ecosystems > Seagrass, North American Environmental Atlas > Marine Ecosystems > Eelgrass

Thesaurus 
Title North American Environmental Atlas
Publication date 2021-04-25 00:00:00

Responsible party - publisher
Organization's name Commission for Environmental Cooperation (CEC)

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Online resource
Online location (URL)https://www.cec.org/north-american-environmental-atlas/

Place keywords Mid-latitude, Western Hemisphere, Northern Hemisphere, North America, Canada, Mexico, United States

Thesaurus 
Title North American Environmental Atlas
Publication date 2021-04-25 00:00:00

Responsible party - publisher
Organization's name Commission for Environmental Cooperation (CEC)

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Online resource
Online location (URL)https://www.cec.org/north-american-environmental-atlas/

Temporal keywords 2021

Citation 

Title North American Environmental Atlas - Blue Carbon (Seagrass Points)
Publication date 2021-04-25 00:00:00

Edition 2.0

Presentation formats digital map
FGDC geospatial presentation format vector digital data

Resource identifier
Value NAatlas_2.01_3

Citation Contacts 

Responsible party - point of contact
Individual's name Dominique Croteau
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Project Lead, Geospatial and Environmental Information

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Responsible party - publisher
Organization's name Commission for Environmental Cooperation (CEC)

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Online resource
Online location (URL)https://www.cec.org/north-american-environmental-atlas/

Responsible party - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com

Locales 

Locale English (UNITED STATES)
Title North American Blue Carbon, 2021
Abstract (Description)
The North American Blue Carbon map shows the distribution of salt marsh, mangrove, and seagrass habitats in North America.

Data was compiled from approximately 50 source datasets, including international (UNEP-WCMC), national (Conabio, US Geological Survey and the US National Wetlands Inventory), as well as state and provincial sources and information from individual investigators. This 2021 release represents the third update to the CEC’s mapping of blue carbon habitats and was a priority within the Strengthening Adaptation Capacity in Marine Protected Areas project under the CEC’s 2019–2020 Operational Plan.

Although this release presents the most comprehensive picture of North American blue carbon spatial distribution at the time of publication, many seagrass and salt marsh habitats have yet to be mapped and efforts to do so are ongoing, with several pending updates underway. Details on the sources are provided in the attached metadata documentation.

Locale Spanish; Castilian (MEXICO)
Title Carbono azul en América del Norte, 2021
Abstract (Description)
En este mapa se muestra la distribución de hábitats de marismas, manglares y lechos de pasto marino de América del Norte.

Los datos con base en los cuales se elaboró se compilaron de alrededor de 50 conjuntos de datos de fuentes internacionales (como el Programa de las Naciones Unidas para el Medio Ambiente [PNUMA-CMCM]), nacionales (el Servicio Geológico de Estados Unidos [US Geological Survey], el Inventario Nacional de Humedales [National Wetlands Inventory] de Estados Unidos y la Comisión Nacional para el Conocimiento y Uso de la Biodiversidad [Conabio] de México) y estatales o provinciales, además de información aportada por investigadores a título individual. Esta versión correspondiente a 2021 constituye la tercera actualización a la cartografía de la Comisión para la Cooperación Ambiental (CCA) de hábitats que captan y almacenan carbono azul, y responde a una de las prioridades del proyecto Fortalecimiento de la capacidad adaptativa de áreas marinas protegidas, del Plan Operativo 2019-2020 de la misma CCA.

Si bien el mapa actualizado representa la imagen más completa de la distribución espacial del carbono azul a escala regional lograda a la fecha, todavía quedan numerosos hábitats de lechos de pasto marino y marismas por cartografiarse, de manera que los esfuerzos para completar esta tarea siguen en marcha, y se prevén varias actualizaciones pendientes del material. Los detalles sobre las fuentes se proporcionan en la documentación sobre metadatos adjunta.

Locale French (CANADA)
Title Le carbone bleu en Amérique du Nord, 2021
Abstract (Description)
La carte du carbone bleu en Amérique du Nord illustre la répartition des habitats de marais salés, de mangroves et d’herbiers marins sur le continent nord-américain.

Les données ont été compilées à partir d’une cinquantaine de sources internationales et nationales, dont le Programme des Nations Unies pour l’environnement (PNUE-CMSC), la Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (Conabio, Commission nationale sur la connaissance et l’utilisation de la biodiversité), l’United States Geological Survey (USGS, Service géologique des États-Unis) et le National Wetlands Inventory (NWI, Inventaire national des zones humides) des États-Unis, ainsi qu’à partir de sources étatiques et provinciales, mais aussi grâce à des informations fournies individuellement par des chercheurs. Cette version de 2021, qui représente la troisième mise à jour des travaux de la CCE en matière de cartographie des habitats de carbone bleu, constituait une priorité du projet intitulé Renforcement de la capacité d’adaptation des aires marines protégées, entrepris dans le cadre du Plan opérationnel pour 2019 et 2020.

Bien qu’au moment de sa publication cette version présente l’illustration la plus complète qui soit de la répartition spatiale du carbone bleu en Amérique du Nord, de nombreux habitats d’herbiers marins et de marais salés ne sont pas encore cartographiés. Des travaux à cette fin sont en cours, et plusieurs mises à jour sont en instance de publication. La documentation ci jointe sur les métadonnées donne de plus amples détails au sujet des sources de données susmentionnées."

Resource Details 

Dataset languages English (UNITED STATES)
Dataset character set utf8 - 8 bit UCS Transfer Format

Status completed
Spatial representation type vector

Spatial resolution
Dataset's scale
Scale denominator 10000000
Ground sample distance
Precision of spatial data  m (meter)

Supplemental information
The Commission for Environmental Cooperation (CEC) is an international organization created by Canada, Mexico, and the United States of America under the North American Agreement on Environmental Cooperation (NAAEC), which came into force at the same time as the North American Free Trade Agreement (NAFTA). The CEC was established to address regional environmental concerns, help prevent potential trade and environmental conflicts, and to promote the effective enforcement of environmental law. As of 2020, the CEC operates in accordance with the Environmental Cooperation Agreement, which entered into force at the same time as the CUSMA/T-MEC/USMCA trade agreement.

This dataset was created as part of a collaborative effort between the Mexican Carbon Program that conducted an exhaustive search for data updates or new datasets available, as well as coordinate three national workshops with Blue Carbon experts from Canada, the United States and Mexico to retrieve feedback on the best practices to map Blue Carbon ecosystems across North America; and the Commission for Environmental Cooperation that conducted the review and evaluation of the datasets collected, as well as the map integration process and cartographic refinement.

The goal of this dataset is to serve as a geospatial tool to estimate Blue Carbon Sink potential of North America in ecosystems such as Seagrasses, as well as provide a standardized and publicly available input dataset for various Carbon Budget analyses.

The extent of Seagrasses in North America was estimated by combining datasets from different sources using different methods. These include global and national datasets that were generated from remote sensed imagery. The current dataset serves as an updated of the previously North American Seagrass distribution map published by the Commission for Environmental Cooperation in 2016.

North America’s Blue Carbon: Assessing Seagrass, Salt Marsh and Mangrove Distribution and Carbon Sinks (http://www3.cec.org/islandora/en/item/11664-north-america-s-blue- carbon-assessing-seagrass-salt-marsh-and-mangrove-en.pdf)

A more detailed description of all the datasets used, as well as the preprocess performed to extract Seagrasses information is available in the accompanying document “Blue Carbon Map sources data notes 2021.pdf”

Information related to the Blue Carbon legacy maps produced by the Commission for Environmental Cooperation can be found in the following reports:
1) CEC. 2014. North America’s Blue Carbon: Assessing Seagrass, Salt Marsh and Mangrove Carbon Sinks A Final Report. Montreal, Canada: Commission for Environmental Cooperation. 219 pp
2) CEC. 2017. Blue Carbon Seagrass Mapping in Canada and The United States: British Columbia Washington and Oregon, Developing an Algorithm and Quantifying Eelgrass Extent A Final Report. Montreal, Canada: Commission for Environmental Cooperation. 82 pp

This data set is available in several formats, including Shapefile, Map package, and a PDF Map, along with other files appropriate to particular format, such as .lyrx and .qlr files.

Processing environment Windows 11 Pro; Version 24H2; OS build 26100.3775; Experience Windows Feature Experience Pack 1000.26100.66.0 -- ArcGIS Pro 3.4.3

Credits
Commission for Environmental Cooperation (CEC). 2021. “North American Environmental Atlas - Blue Carbon (Seagrass)”. Ed. 2.0, Vector digital data [1:10,000,000].

ArcGIS item properties
Name North_America_Seagrasses_Pt
Size 0.284
Location file://\\GEODISCUS_LG\C$\Users\geodi\Dropbox\CEC\01_CEC_Env_Atlas_Base\2_Marine_Ecosystems\2_01_3_BC_Seagrass_2021\02_Deliverables\NA_BlueCarbon_Seagrass_Shapefile\NA_BlueCarbon_Seagrass_2021\data\North_America_Seagrasses_Pt\North_America_Seagrasses_Pt.shp
Access protocol Local Area Network

Extents 

Extent
Description
This dataset includes seagrass distribution for all of North America

Geographic extent
Bounding rectangle
Extent type
Extent used for searching
West longitude -180
East longitude -50
North latitude 85
South latitude 14
Extent contains the resource Yes

Extent in the item's coordinate system
westBL -4207402.910500
eastBL 3264212.732000
southBL -3287584.573100
northBL 3559292.570300
exTypeCode Yes

Resource Points of Contact 

Point of contact - point of contact
Individual's name Dominique Croteau
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Project Lead, Geospatial and Environmental Information

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Point of contact - publisher
Organization's name Commission for Environmental Cooperation (CEC)

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Online resource
Online location (URL)https://www.cec.org/north-american-environmental-atlas/

Resource Maintenance 

Resource maintenance
Update frequency as needed

Maintenance contact - publisher
Organization's name Commission for Environmental Cooperation (CEC)

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Online resource
Online location (URL)https://www.cec.org/north-american-environmental-atlas/

Resource Constraints 

Constraints
Limitations of use

This material is licensed under CC BY 4.0, allowing non-exclusive rights to distribute, remix, adapt, and build upon the material in any medium or format, including for commercial purposes, so long as attribution is given to the creator.


Legal constraints
Limitations of use
This material is licensed under CC BY 4.0, allowing non-exclusive rights to distribute, remix, adapt, and build upon the material in any medium or format, including for commercial purposes, so long as attribution is given to the creator.

Spatial Reference 

ArcGIS coordinate system
Type Projected
Geographic coordinate reference GCS_Sphere_ARC_INFO
Projection Sphere_ARC_INFO_Lambert_Azimuthal_Equal_Area
Coordinate reference details
ProjectedCoordinateSystem
XOrigin -12742100
YOrigin -12742100
XYScale 353442495.92849648
ZOrigin -100000
ZScale 10000
MOrigin -100000
MScale 10000
XYTolerance 0.001
ZTolerance 0.001
MTolerance 0.001
HighPrecision true
WKT PROJCS["Sphere_ARC_INFO_Lambert_Azimuthal_Equal_Area",GEOGCS["GCS_Sphere_ARC_INFO",DATUM["D_Sphere_ARC_INFO",SPHEROID["Sphere_ARC_INFO",6370997.0,0.0]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Lambert_Azimuthal_Equal_Area"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-100.0],PARAMETER["Latitude_Of_Origin",45.0],UNIT["Meter",1.0]]

Reference system identifier
Value 37008
Codespace WKID
Version


Spatial Data Properties 

Vector 
Level of topology for this dataset geometry only

Geometric objects
Feature class name North_America_Seagrasses_Pt
Object type point
Object count 6760
ArcGIS Feature Class Properties 
Feature class name North_America_Seagrasses_Pt
Feature type Simple
Geometry type Point
Has topology FALSE
Feature count 6760
Spatial index TRUE
Linear referencing TRUE

Data Quality 

Scope of quality information 
Resource level dataset

Data quality report - Completeness omission 
Data quality measure reference
Measure description
The international, national, and local datasets used in this analysis have known data gaps. In this dataset, the most updated Seagrass locations datasets to our knowledge have been used. Future updates are envisioned as new data is available and new data providers offer spatial information over areas omitted in the current map.

Conformance test results
Test passed Yes

Product specification 
Title North American Environmental Atlas - Blue Carbon (Seagrass)

Data quality report - Non quantitative attribute accuracy 
Data quality measure reference
Measure description
Attributes and values were reviewed manually. No additional tests for attribute accuracy were performed on this data set.

Conformance test results
Test passed Yes

Product specification 
Title North American Environmental Atlas - Blue Carbon (Seagrass)

Data quality report - Topological consistency 
Data quality measure reference
Measure description
No tests for logical consistency have been performed on this data set.

Conformance test results
Test passed Yes

Product specification 
Title North American Environmental Atlas - Blue Carbon (Seagrass)

Lineage 

Lineage statement
The North American Blue Carbon map shows the distribution of salt marsh, mangrove, and seagrass habitats in North America.

Data were compiled from approximately 50 source datasets, including international (UNEP-WCMC), national (CONABIO, US Geological Survey and the US National Wetlands Inventory), as well as state and provincial sources and information from individual investigators. This 2021 release represents the third update to the CEC’s mapping of blue carbon habitats and was a priority within the Strengthening Adaptation Capacity in Marine Protected Areas project under the CEC’s 2019–2020 Operational Plan.

Although this release presents the most comprehensive picture of North American blue carbon spatial distribution at the time of publication, many seagrass and salt marsh habitats have yet to be mapped and efforts to do so are ongoing, with several pending updates underway.

The extent of Seagrasses in North America was estimated by combining datasets from different sources using different methods. These include global, national, and local datasets that were generated from ground surveys, and remote sensed imagery. The current dataset serves as an updated of the previously North American Seagrass distribution map published by the Commission for Environmental Cooperation in 2016.

* Datasets used in the North American 2021 Seagrass Distribution Map. A more detailed description of all the datasets used, as well as the preprocess performed to extract Seagrass information is available in the accompanying document “Blue Carbon Map sources data notes 2021.pdf”

Process step 
When the process occurred 2021-01-30 00:00:00
Description
Preprocesses conducted with the Seagrasses datasets were performed between December 2020 and March 2021.

NOTE: A more complete and detailed report of the North America 2021 Seagrass Distribution map is available in the accompanying report “NA Seagrass Cartographic Integration Process.pdf”

Process contact - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com
Source data 
Relationship to the process step used

Source citation 
Title SG_27

Source data 
Relationship to the process step used

Source citation 
Title SG_28

Source data 
Relationship to the process step used

Source citation 
Title SG_29

Source data 
Relationship to the process step used

Source citation 
Title SG_30

Source data 
Relationship to the process step used

Source citation 
Title SG_31

Source data 
Relationship to the process step used

Source citation 
Title SG_32

Source data 
Relationship to the process step used

Source citation 
Title SG_33

Source data 
Relationship to the process step used

Source citation 
Title SG_34

Source data 
Relationship to the process step used

Source citation 
Title SG_35

Source data 
Relationship to the process step used

Source citation 
Title SG_36

Source data 
Relationship to the process step produced

Source citation 
Title SG_37

Source data 
Relationship to the process step used

Source citation 
Title SG_38

Process step 
When the process occurred 2021-01-30 00:01:00
Description
Global Distribution of Seagrasses

A “selection by attributes process” was performed to isolate all seagrasses points corresponding to Canada, the United States and Mexico territories. All points located in the USA territories over the Pacific Ocean as well as Puerto Rico were deselected. A final seagrass layer was exported from the remaining points selection.

Process contact - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com
Source data 
Relationship to the process step used

Source citation 
Title SG_27

Process step 
When the process occurred 2021-01-30 00:03:00
Description
Canada Eelgrass Locations 2

Data from the input dataset were converted to a point spatial layer based on the coordinates reported for each record. Records not reporting species name were omitted and the rest of the records were exported to a new point spatial layer.

Process contact - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com
Source data 
Relationship to the process step used

Source citation 
Title SG_29

Process step 
When the process occurred 2021-01-30 00:04:00
Description
BC Howe Sound Eelgrass locations

The original data is available in a geodatabase that contains different polygon layers and a point layer with locations of presence of seagrasses. The layer with seagrass distribution and a layer that merges all of them. The layer “Eelgrass_HoweSound_Fieldwork2019_coordinates_WM” was selected and exported to a new points spatial layer.

Process contact - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com
Source data 
Relationship to the process step used

Source citation 
Title SG_30

Process step 
When the process occurred 2021-01-30 00:05:00
Description
National Greenhouse Gasses Inventory

The coastal carbon dataset was converted from an excel spreadsheet to a point shapefile based on Latitude and Latitude values per record, the references coordinate system assigned was WGS84. Seagrass records were selected by “select by attributes” tool. A few points possibly incorrectly georeferenced over the ocean and further inland were deleted manually to keep only the records along the coast of the United States.

Process contact - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com
Source data 
Relationship to the process step used

Source citation 
Title SG_34

Process step 
When the process occurred 2021-01-30 00:06:00
Description
Pacific Northwest seagrass locations

Seagrass sample locations were selected and georeferenced into a point spatial layer.

Process contact - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com
Source data 
Relationship to the process step used

Source citation 
Title SG_35

Process step 
When the process occurred 2021-01-30 00:07:00
Description
North Pacific coast seagrass locations

The original dataset was georeferenced and converted into spatial points by the Mexican Carbon Program. This dataset provides a set of points that describe locations of seagrasses and saltmarshes in the North Pacific coast of the United States. Seagrass points were selected and exported to a new spatial layer.

Process contact - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com
Source data 
Relationship to the process step used

Source citation 
Title SG_36

Process step 
When the process occurred 2021-01-30 00:08:00
Description
Washington coast seagrass locations

All points classified as different than “no_grass” or “no_data” class in the “site_pt” layer within the source geoDataset were selected and exported to a new points spatial layer.

Process contact - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com
Source data 
Relationship to the process step used

Source citation 
Title SG_37

Process step 
When the process occurred 2021-01-30 00:09:00
Description
Pastos marinos en la Península de Yucatán

All class names reported as species abbreviations were described as complete species name in a new field. According to information reported by the author of this dataset, the “Year of origin” attribute was defined on a new attribute field.

Process contact - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com
Source data 
Relationship to the process step used

Source citation 
Title SG_38

Process step 
When the process occurred 2021-01-30 00:31:00
Description
Cartographic Integration Process:

Step 01
All the layers previously prepared and preprocessed were merged in a new spatial layer.
> BC_HoweSound_seagrass_locations_laea_final.shp
> Canada_eelgrass_locations_laea_final.shp
> Canada_eelgrass_locations_2_laea_final.shp
> NewBrunswick_seagrass_locations_laea_final.shp
> NGGI_united_states_seagrass_laea_final.shp
> North_Pacific_coast_seagrass_final.shp
> NovaScotia_seagrass_locations_laea_final.shp
> Pacific_Northwest_seagrass_locations_laea_final.shp
> PEI_seagrass_locations_laea_final.shp
> Washington_coast_seagrass_locations_laea_final.shp
> WCMC_NorthAmerica_seagrasses_point_laea_final.shp
> Mex_conabio_seagrass_laea_final.shp
Output = NorthAmerica_seagrasses_points_dissolve.shp

Step 02
All records in the attribute table fields were standardized, different feature names with different codes or abbreviations to indicate species or seagrass distribution characteristics were homogenized in a standard code names, common names were included in most of the records, accompanying the scientific name descriptions when available.

Step 03
After a final check of attribute table consistency and data display on different GIS platforms, a spatial data file in ESRI “shp” format is generated to provide the final CEC North America seagrasses distribution map.

Process contact - processor
Individual's name Ricardo Llamas
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Geospatial Consultant

Contact information 
Address
Type
City Tlalnepantla
Administrative area State of Mexico
Postal code 54180
Country MX
e-mail addressrllamas.geo.analyst@gmail.com
Source data 
Description
This dataset shows the global distribution of seagrasses and is composed of two subsets of point and polygon occurrence data. The data were compiled by UN Environment World Conservation Monitoring Centre in collaboration with many collaborators (e.g., Frederick Short of the University of New Hampshire), organisations (e.g. OSPAR), and projects (e.g. the European project Mediterranean Sensitive Habitats “Mediseh”), across the globe (full list available in accompanying metadata table within the dataset).

> Preprocessing
The original data set was acquired from the World Conservation Monitoring Centre (WCMC) that integrates two vector layers: polygons and points.
A “selection by attributes process” was performed to isolate all seagrasses point-information corresponding to Canada, the United States and Mexico territories. All points located in the USA territories in the Pacific Ocean as well as Puerto Rico were deselected. A final seagrass layer was exported from the remaining points selection.

Source medium name online link

Source citation 
Title Global Distribution of Seagrasses
Creation date 2018-06-15 00:00:00
Publication date 2020-06-15 00:00:00

Edition 7

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_27

Other citation details
Citation: UNEP-WCMC, Short FT (2020). Global distribution of seagrasses (version 7.0). Seventh update to the data layer used in Green and Short (2003), Cambridge (UK): UN Environment World Conservation Monitoring Centre.

Source metadata: https://data.unep- wcmc.org/pdfs/7/WCMC_013_014_Global_Distribution_of_Seagrasses.pdf?1617122071


Responsible party - originator
Organization's name United Nations Environment Programme World Conservation Monitoring Centre (UNEP-WCMC)

Contact information 
Address
Type physical
Delivery point 219 Huntingdon Road
City Cambridge
Postal code CB3 0DL
Country GB
e-mail addressinfo@unep-wcmc.org
Online resource
Online location (URL)https://www.unep-wcmc.org

Resource location online
Online location (URL)https://data.unep-wcmc.org/datasets/7

Extent of the source data
Description
Global

Source data 
Description
There is no national monitoring program for eelgrass. Scientists, managers and local communities collect data in different ways for different purposes. The presence of eelgrass can be detected using satellite images and aerial photos, however, for the information compiled to date most of the observations were obtained from field studies.
All Canadian eelgrass sites reported by data holders or found in the scientific literature were included in this indicator. When more than one series of observations existed for the same site, the most recent assessments were used. Site observations may be single observations or include information on multiple observations over time. Eelgrass sites are studied using different methods for different purposes. The indicator reflects the state of knowledge as of March 2020.

> Preprocessing
No preprocessing was needed for this dataset.

Source medium name online link

Source citation 
Title Canada Eelgrass Locations
Publication date 2020-06-15 00:00:00

Edition 2

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_28

Other citation details
Citation: Environment and Climate Change Canada (2020). Canadian Environmental Sustainability Indicators: Eelgrass in Canada.

Year of Origin: 1969 - 2019

Source metadata:  https://www.canada.ca/en/environment-climate-change/services/environmental- indicators/eelgrass-canada.html


Responsible party - originator
Organization's name Environment and Climate Change Canada (ECCC)

Contact information 
Phone
Voice +1 800 668 6767
Address
Type physical
Delivery point 351 Saint-Joseph Boulevard
City Gatieneau
Administrative area Quebec
Postal code K1A 0H3
Country CA
e-mail addressenviroinfo@ec.gc.ca
Online resource
Online location (URL)https://www.canada.ca/en/environment-climate-change.html

Extent of the source data
Description
Regional

Source data 
Description
Dataset containing georeferenced eelgrass samples held by different herbarium collections across Canada.

> Preprocessing
Data from the input dataset were converted to a point spatial layer based on the coordinates reported for each record. Records not reporting species name were omitted and the rest of the records were exported to a new point spatial layer.

Source medium name online link

Source citation 
Title Canada Eelgrass Locations 2
Publication date 2020-06-15 00:00:00

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_29

Other citation details
Year of Origin: 1882 - 2013

Dataset provided by Matt Christensen, University of British Columbia (mattch85@gmail.com)


Responsible party - originator
Individual's name Matt Christensen
Organization's name University of British Columbia, Department of Zoology

Contact information 
Phone
Voice +1 604 822 2131
Address
Type physical
Delivery point #3051 – 6270 University Blvd.
City Vancouver
Administrative area British Columbia
Postal code V6T 1Z4
Country CA
e-mail addressmattch85@gmail.com
Online resource
Online location (URL)https://zoology.ubc.ca/

Contact instructions
Contact Person: Matt Christensen (University of British Columbia)

Extent of the source data
Description
Regional

Source data 
Description
The Howe Sound/Atl’ka7tsem Marine Reference Guide (“the Guide”) is a collaborative and community-led initiative whose goal is to build capacity to protect the human and natural
values associated with Howe Sound/Atl’ka7tsem’s marine environment in the face of growing anthropogenic pressures. Atl’ka7tsem is the Squamish Nation place name for this region, which sits within their traditional and unceded territory. The Guide is a project on Tides Canada’s shared platform.

To achieve its objective, the Guide is creating decision-support tools that effectively arm local decision-makers and community groups with robust data and holistic information about the region’s marine realm. One such tool is an online interactive map and database that will include hundreds of data layers about the Sound’s marine ecology, human activities, and vulnerability to anthropogenic pressures (e.g. climate change). This map will visualize areas of multi-use and potential conflict, and provide valuable baseline data at a regional scale.

In July 2019, staff from the Guide co-presented with Moonstone Enterprises to the Town of Gibsons’ mayor and council about the status of eelgrass restoration and monitoring in the Sound, and announced that the Guide would survey the Sound’s mainland eelgrass in the fall of 2019. Given the interest of the Town of Gibsons (“the Town”) in updating their foreshore eelgrass distribution maps (which had previously been surveyed in 2004 and 2013 by Dianne Sanford, sole proprietor of Moonstone Enterprises), councilors requested that the Guide survey the Town’s recreational water lease using the same methodology. These data will support the Town’s capacity to protect critical nearshore ecosystems in the face of growing pressures facing this region.

> Preprocessing
The original data is available in a geodatabase that contains different polygon layers and a point layer with locations of presence of seagrasses. The layer with seagrass distribution and a layer that merges all of them. The layer “Eelgrass_HoweSound_Fieldwork2019_coordinates_WM” was selected and exported to a new points spatial layer.

Source medium name online link

Source citation 
Title BC Howe Sound Eelgrass locations
Publication date 2020-06-15 00:00:00
Creation date 2019-06-15 00:00:00

Edition 1

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_30

Other citation details
Citation: Beaty, F., Sanford, D. (2019). Town of Gibsons and Howe Sound / Atl’ka7tsem Eelgrass Survey Report

Dataset provided by Matt Christensen, University of British Columbia (mattch85@gmail.com)

Source metadata: https://howesoundguide.ca/wp-content/uploads/2020/02/Eelgrass-survey- report_MRG_final.pdf


Responsible party - originator
Organization's name Howe Sound / Átl’ḵa7tsem Marine Reference Guide

Contact information 
Phone
Voice +1 866 843 3722
Address
Type physical
Administrative area British Columbia
Country CA
e-mail addressinfo@howesoundguide.ca
Online resource
Online location (URL)https://howesoundguide.ca

Contact instructions
Contact Person: Matt Christensen (University of British Columbia)

Extent of the source data
Description
Regional

Source data 
Description
New Brunswick seagrass locations based on a published report by Hanson, A.R. Distribution of Eelgrass in the Maritime Provinces provided by Dr. Fred T. Short.
> Preprocessing

No preprocessing was needed for this dataset.

Source medium name online link

Source citation 
Title New Brunswick seagrass locations
Publication date 1996-06-15 00:00:00

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_31

Other citation details
Citation:  Hanson, A. and Calkins, L. 1996. Wetlands of the Maritime Provinces: Revised Documentation for the Wetlands Inventory. CWS Technical Report No. 267. Canadian Wildlife Service - Environment Canada. Sackville, New Brunswick, Canada. 67 pp.
Year of Origin: 1980- 1985

Dataset provided by Frederick T. Short (fredtshort@gmail.com)

Source metadata:  http://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-267-eng.pdf


Responsible party - originator
Individual's name Frederick Short
Organization's name University of New Hampshire
Contact's position Emeritus Professor

Contact information 
Address
Type physical
City Durham
Administrative area New Hampshire
Postal code 03824
Country US
e-mail addressfredtshort@gmail.com
Contact instructions
Contact Person: Frederick Short

Extent of the source data
Description
Regional

Source data 
Description
Prince Edward Island seagrass locations based on a published report by Hanson, A.R. Distribution of Eelgrass in the Maritime Provinces provided by Dr. Fred T. Short.

> Preprocessing
No preprocessing was needed for this dataset.

Source medium name online link

Source citation 
Title Prince Edward Island seagrass locations
Creation date 1974-06-15 00:00:00
Publication date 1996-06-15 00:00:00

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_32

Other citation details
Citation: Hanson, A. and Calkins, L. 1996. Wetlands of the Maritime Provinces: Revised Documentation for the Wetlands Inventory. CWS Technical Report No. 267. Canadian Wildlife Service - Environment Canada. Sackville, New Brunswick, Canada. 67 pp.

Dataset provided by Frederick T. Short (fredtshort@gmail.com)

Source metadata: http://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-267-eng.pdf


Responsible party - originator
Individual's name Frederick Short
Organization's name University of New Hampshire
Contact's position Emeritus Professor

Contact information 
Address
Type physical
City Durham
Administrative area New Hampshire
Postal code 03824
Country US
e-mail addressfredtshort@gmail.com
Contact instructions
Contact Person: Frederick Short

Extent of the source data
Description
Regional

Source data 
Description
Nova Scotia seagrass locations based on a published report by Hanson, A.R. Distribution of Eelgrass in the Maritime Provinces provided by Dr. Fred T. Short.

> Preprocessing
No preprocessing was needed for this dataset.

Source medium name online link

Source citation 
Title Nova Scotia seagrass locations
Publication date 1996-06-15 00:00:00

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_33

Other citation details
Citation: Hanson, A. and Calkins, L. (1996). Wetlands of the Maritime Provinces: Revised Documentation for the Wetlands Inventory. CWS Technical Report No. 267. Canadian Wildlife Service - Environment Canada. Sackville, New Brunswick, Canada. 67 pp.

Year of Origin: 1974-1978

Dataset provided by Frederick T. Short (fredtshort@gmail.com)

Source metadata: http://publications.gc.ca/collections/collection_2018/eccc/cw69-5/CW69-5-267-eng.pdf


Responsible party - originator
Individual's name Frederick Short
Organization's name University of New Hampshire
Contact's position Emeritus Professor

Contact information 
Address
Type physical
City Durham
Administrative area New Hampshire
Postal code 03824
Country US
e-mail addressfredtshort@gmail.com
Contact instructions
Contact Person: Frederick Short

Extent of the source data
Description
Regional

Source data 
Description
The EPA develops an annual Inventory of U.S. Greenhouse Gas Emissions and Sinks that tracks total U.S. emissions and removals by sector, source-sink category, and greenhouse gas. The inventory process follows IPCC Guidance and UNFCCC reporting requirements. In an effort to incorporate the IPCC Wetlands Guidance into the U.S. GHG Inventory, NOAA funded a baseline assessment of U. S. coastal carbon resources, that was incorporated into the 2016 submission of the U.S. National GHG inventory (NGGI). The goal this project was to anticipate the need for improved data management for future revisions of the NGGI, and specifically to convert the spreadsheet data used for the 2016 NGGI to a format that is more sustainable for data entry, flexible for data analysis, and less error prone.
The points sampled in this dataset also describe ecosystem types such as Mangroves, Seagrasses and Saltmarshes.

> Preprocessing
The coastal carbon dataset was converted from an excel spreadsheet to a point shapefile based on Latitude and Latitude values per each record, the references coordinate system assigned was WGS84. Seagrass records were selected by “select by attributes” tool. A few points possibly incorrectly georeferenced over the ocean and further inland were deleted manually to keep only the records along the coast of the United States.

Source medium name online link

Source citation 
Title National Greenhouse Gasses Inventory
Publication date 2020-06-15 00:00:00
Creation date 2019-06-15 00:00:00

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_34

Other citation details
Citation: EPA (2017) U.S. Greenhouse Gasses Inventory

Source metadata: https://github.com/Smithsonian/Coastal-Wetland-NGGI-Data-Public/raw/master/5- Report/Report%20on%202017%20NGGI%20Update.pdf


Responsible party - originator
Organization's name U.S. Environmental Protection Agency (EPA)

Contact information 
Phone
Voice +1 202 272 0167
Address
Type physical
Delivery point 1200 Pennsylvania Avenue, NW
City Washington
Administrative area Disctric of Columbia
Postal code 20460
Country US
Resource location online
Online location (URL)https://github.com/Smithsonian/Coastal-Wetland-NGGI-Data-Public

Extent of the source data
Description
United States

Source data 
Description
Information about the sequestration rates and sources of carbon to local sediments remains sparse. Estimates of sediment OC stocks and sequestration rates from 139 cores collected from temperate seagrass (Zostera marina) meadows in Alaska, British Columbia, Washington, and Oregon.

> Preprocessing
Seagrass sample location were elected and georeferenced into a point spatial layer.

Source medium name online link

Source citation 
Title Pacific Northwest seagrass locations
Publication date 2020-06-15 00:00:00

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_35

Other citation details
Citation: Prentice, C., Poppe, K. L., Lutz, M., Murray, E., Stephens, T. A., Spooner, A., & Short, F. T. (2020). A synthesis of blue carbon stocks, sources, and accumulation rates in eelgrass (Zostera marina) meadows in the Northeast Pacific. Global Biogeochemical Cycles, 34(2).

Year of Origin: 2015-2019

Source metadata: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019GB006345


Responsible party - originator
Individual's name Carolyn Prentice
Organization's name Hakai Institute

Contact information 
Address
Type postal
Delivery point PO Box 25039
City Campbell River
Administrative area British Columbia
Postal code V9W 0B7
Country CA
e-mail addresscarolyn.prentice@hakai.org
Contact instructions
Contact Person: Carolyn Prentice

Resource location online
Online location (URL)https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019GB006345

Extent of the source data
Description
Regional

Source data 
Description
Dataset derived from Kauffman, J. Boone, et al. Total ecosystem carbon stocks at the marine‐ terrestrial interface: Blue carbon of the Pacific Northwest Coast, United States. Global Change Biology 26.10 (2020): 5679-5692.

> Preprocessing
The original dataset was georeferenced and converted into spatial points by the Mexican Carbon Program. This dataset provides a set of points that describe locations of seagrasses and saltmarshes in the North Pacific coast of the United States. Seagrass points where selected and exported to a new spatial layer.

Source citation 
Title North Pacific coast seagrass locations
Publication date 2020-06-15 00:00:00
Creation date 2020-06-15 00:00:00

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_36

Other citation details
Citation: Kauffman, J. et al. (2020). Blue carbon of the Pacific Northwest Coast, United States. Global Change Biology 26, 10, 5679-5692.

Dataset provided by Craig Cornu (cecornu@gmail.com)

Source metadata: https://onlinelibrary.wiley.com/doi/10.1111/gcb.15248


Responsible party - originator
Individual's name J. Boone Kauffman
Organization's name Oregon State University
Contact's position Department of Fisheries, Wildlife and Conservation Sciences

Contact information 
Address
Type physical
Delivery point 430 Strand Agriculture Hall
City Corvallis
Administrative area Oregon
Postal code 97331
Country US
e-mail addressboone.kauffman@oregonstate.edu
Contact instructions
Contact Person: J. Boone Kauffman

Extent of the source data
Description
Regional

Source data 
Description
The Submerged Vegetation Monitoring Program (SVMP) has conducted annual monitoring of the status and trends of native seagrass in greater Puget Sound since 2000. The native seagrasses monitored include the dominant eelgrass (Zostera marina) as well as the less abundant surfgrass (Phyllospadix scouleri and P. serrulatus). This geoDataset is the central component of the 2000-2019 Puget Sound eelgrass monitoring dataset. This dataset is produced by the Submerged Vegetation Monitoring Program (SVMP) within the Washington Department of Natural Resources.

The site_pt layer includes a point for every site in the sampling frames (flats and fringe) in use since 2001, the fringe orphans, and the sites outside the SVMP study area in south Puget Sound. In addition, there are points for three sites from the site_poly_special layer that do not coincide with the SVMP sampling frames (outf455, outf457, outf458). These three additional sites have been sampled but the surrounding SVMP sites have not been sampled. Points were not included for sites outside the SVMP frames where the surrounding SVMP sites have been sampled.

> Preprocessing
All points classified as different than “no_grass” or “no_data” class in the “site_pt” layer within the source geoDataset were selected and exported to a new points spatial layer.

Source medium name online link

Source citation 
Title  Washington coast seagrass locations
Publication date 2020-06-15 00:00:00

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_37

Other citation details
Citation: WA-DNR, (2020). Submerged Vegetation Monitoring Program 2000-2019 Database, Washington Department of Natural Resources, Aquatic Resources Division, Olympia, WA, USA.

Year of Origin: 2015-2019

Source metadata: https://fortress.wa.gov/dnr/adminsa/gisdata/datadownload/SVMP_distribution.zip


Responsible party - originator
Organization's name Washington State Department of Natural Resources
Contact's position Submerged Vegetation Monitoring Program (SVMP)

Contact information 
Phone
Voice +1 360 902 3000
Address
Type physical
Delivery point 1111 Washington St SE
City Olympia
Administrative area Washington
Postal code 98504
Country US
e-mail addressinfo@dnr.wa.gov
Online resource
Online location (URL)https://www.dnr.wa.gov

Resource location online
Online location (URL)https://fortress.wa.gov/dnr/adminsa/gisdata/datadownload/SVMP_distribution.zip

Extent of the source data
Description
Regional

Source data 
Description
Geographic coordinates of sea grasses visual observations at various locations in the states of Campeche, Yucatán and Quintana Roo.

> Preprocessing
All class names reported as species abbreviations were described as complete species name in a new field. According to information reported by the author of this dataset, the “Year of origin” attribute was defined on a new attribute field.

Source medium name online link

Source citation 
Title Pastos marinos en la Península de Yucatán
Publication date 2021-06-15 00:00:00

FGDC geospatial presentation format vector digital data

Resource identifier
Value SG_38

Other citation details
Citation: Pérez-Espinosa, I & Gallegos-Martínez, M., (2021). Pastos marinos en la Península de Yucatán. National Commission for the Knowledge and Use of Biodiversity (CONABIO) - UAM-I

Year of Origin: 2013-2018


Responsible party - originator
Organization's name Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO)

Contact information 
Phone
Voice +52 55 5004 5009
Address
Type physical
Delivery point Av. Liga Periférico-Insurgentes Sur 4903
City Tlalpan
Administrative area Mexico City
Postal code 14010
Country MX
e-mail addressisabel.cruz@conabio.gob.mx
Contact instructions
Contact Person: Iliana Pérez

Extent of the source data
Description
Regional

Distribution 

Distributor 
Contact information - distributor
Organization's name Commission for Environmental Cooperation (CEC)

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Online resource
Online location (URL)https://www.cec.org/north-american-environmental-atlas/

Distribution format
Name Shapefile
Version ESRI
Specification Although these data have been processed successfully on computer systems at the Commission for Environmental Cooperation, no warranty expressed or implied is made regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. No responsibility is assumed by these agencies in the use of this data.

Transfer options
Transfer size 12
Units of distribution MB

Fields 

Details for object North_America_Seagrasses_Pt 
Type Feature Class
Row count 6760
Definition
Vector points representing Seagrass locations in North America.

Definition source
Commission for Environmental Cooperation 

Field FID 
Alias FID
Data type OID
Width 4
Precision 0
Scale 0

Field description
Internal feature number.

Description source
Esri

Range of values
Minimum value 0
Maximum value 6759

Description of values
Sequential unique whole numbers that are automatically generated.

Field Shape 
Alias Shape
Data type Geometry
Width 0
Precision 0
Scale 0

Field description
Feature geometry.

Description source
Esri

Description of values
Coordinates defining the features.

Field COUNTRY 
Alias COUNTRY
Data type String
Width 10
Precision 0
Scale 0

Field description
Country where the Seagrass polygon is located.

Description source
Commission for Environmental Cooperation 

List of values
Value CAN
Description The saltmarsh polygon is located in Canada.
Enumerated domain value definition source Commission for Environmental Cooperation

Value MEX
Description The saltmarsh polygon is located in Mexico.
Enumerated domain value definition source Commission for Environmental Cooperation

Value USA
Description The saltmarsh polygon is located in the United States.
Enumerated domain value definition source Commission for Environmental Cooperation

Accuracy information
Accuracy See complete list in: Commission for Environmental Cooperation (2005) Guidelines for Geospatial data for Compatibility with the North American Atlas Framework. CEC: Montreal pp.5-11
Field STATEABB 
Alias STATEABB
Data type String
Width 10
Precision 0
Scale 0

Field description
State or province code defining the location of each seagrass polygon (two letters country code + two letters state/province code).

Description source
Commission for Environmental Cooperation

List of values
Value CA-BC
Description British Columbia
Enumerated domain value definition source Commission for Environmental Cooperation

Value CA-NB
Description New Brunswick
Enumerated domain value definition source Commission for Environmental Cooperation

Value CA-NL
Description Newfoundland and Labrador
Enumerated domain value definition source Commission for Environmental Cooperation

Value CA-NS
Description Nova Scotia
Enumerated domain value definition source Commission for Environmental Cooperation

Value CA-NT
Description Northwest Territories
Enumerated domain value definition source Commission for Environmental Cooperation

Value CA-ON
Description Ontario
Enumerated domain value definition source Commission for Environmental Cooperation

Value CA-PE
Description Prince Edward Island
Enumerated domain value definition source Commission for Environmental Cooperation

Value CA-QC
Description Quebec
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-BCN
Description Baja California
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-BCS
Description Baja California Sur
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-CAM
Description Campeche
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-CHP
Description Chiapas
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-OAX
Description Oaxaca
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-ROO
Description Quintana Roo
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-SIN
Description Sinaloa
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-SON
Description Sonora
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-TAM
Description Tamaulipas
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-VER
Description Veracruz
Enumerated domain value definition source Commission for Environmental Cooperation

Value MX-YUC
Description Yucatán
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-AK
Description Alaska
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-AL
Description Alabama
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-CA
Description California
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-FL
Description Florida
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-LA
Description Louisiana
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-MA
Description Massachusetts
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-MD
Description Maryland
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-ME
Description Maine
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-NC
Description North Carolina
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-NH
Description New Hampshire
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-NJ
Description New Jersey
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-OR
Description Oregon
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-TX
Description Texas
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-VA
Description Virginia
Enumerated domain value definition source Commission for Environmental Cooperation

Value US-WA
Description Washington
Enumerated domain value definition source Commission for Environmental Cooperation

Accuracy information
Accuracy See complete list in: Commission for Environmental Cooperation (2005) Guidelines for Geospatial data for Compatibility with the North American Atlas Framework. CEC: Montreal pp.5-11
Field NAME 
Alias NAME
Data type String
Width 250
Precision 0
Scale 0

Field description
Name of the features described by each polygon, as reported by the source of each dataset.

Description source
Commission for Environmental Cooperation

Description of values
> Caribbean Seagrass (Halophila decipiens)
> Clover Grass (Halophila baillonis)
> Dwarf Eelgrass (Zostera japonica)
> Eelgrass (Zostera marina)
> Eelgrass (Zostera marina) - Dwarf Eelgrass (Zostera japonica)
> Eelgrass (Zostera marina) - Surfgrass (Phyllospadix)
> Johnson's Seagrass (Halophila johnsonii)
> Manatee Grass (Syringodium filiforme)
> Not Reported
> Scouler's Surfgrass (Phyllospadix scouleri)
> Seagrass
> Seagrass (Historical observation)
> Seagrass (Multiple observations)
> Seagrass (Restored)
> Seagrass (Single observation)
> Seagrass (Zostera)
> Shoal Grass (Halodule wrightii)
> Star Grass (Halophila engelmannii)
> Surfgrass (Phyllospadix)
> Toothed Surfgrass (Phyllospadix serrulatus)
> Torrey's Surfgrass (Phyllospadix torreyi)
> Turtle Grass (Thalassia testudinum)
> Turtle Grass (Thalassia testudinum) - Manatee Grass (Syringodium Filiforme) - Shoal Grass (Halodule wrightii)
> Turtle Grass (Thalassia testudinum) - Manatee Grass (Syringodium Filiforme) - Shoal Grass (Halodule wrightii) - Macroalgae
> Zostera asiatica

Field INPT_SRCE 
Alias INPT_SRCE
Data type String
Width 250
Precision 0
Scale 0

Field description
Description of the original dataset used to acquire each polygon.

Description source
Commission for Environmental Cooperation 

Description of values
> Acadia University
> Compiled by Matt Christensen (University of British Columbia)
> Environment and Climate Change Canada
> Environmental Protection Agency (EPA)
> Frederick T. Short (University of New Hampshire)
> Gouvernement du Québec
> Kauffman, J. B. et al., 2020
> National Commission for the Knowledge and Use of Biodiversity (CONABIO) - UAM-I
> Prentice, C. et al., 2020
> UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC)
> Université Laval
> University of British Columbia
> Washington State Department of Natural Resources Submerged Vegetation Monitoring Program

Field YEAR_PUB 
Alias YEAR_PUB
Data type Integer
Width 10
Precision 10
Scale 0

Field description
Year of the publication of the last update of the dataset used as input.

Description source
Commission for Environmental Cooperation 

Range of values
Minimum value 1996
Maximum value 2021

Field RESP_PARTY 
Alias RESP_PARTY
Data type String
Width 250
Precision 0
Scale 0

Field description
Name of the entity responsible on providing each dataset.

Description source
Commission for Environmental Cooperation 

Description of values
> CAN: E. C. Smith Herbarium (ACAD) - Cape Breton University Collection
> CAN: Environment and Climate Change Canada
> CAN: Herbier du Québec - Collection de plantes vasculaires
> CAN: Herbier Louis-Marie - Collection de plantes vasculaires
> CAN: Howe Sound/Átl’ḵa7tsem Marine Reference Guide
> CAN: University of British Columbia
> CAN: University of British Columbia Herbarium - Vascular Plant Collection
> Faculty of Science, University of Western Australia
> Frederick T. Short (University of New Hampshire)
> Herrera-Silveira, Jorge (CINVESTAV-IPN, Merida)
> Hoffman, B.
> Iliana Pérez Espinosa and Margarita Gallegos Martínez
> International Union for Conservation of Nature (IUCN) - UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC)
> Kauffman, J. B. et al., 2020
> MEX: Centro de Investigación y de Estudios Avanzados (CINVESTAV)
> MEX: Universidad Nacional Autónoma de México (UNAM)
> Morris, L. J. et al., 2000
> Not Reported
> Phillips, R. C., 1992
> Prentice, C. et al., 2020
> Raz-Guzmán, Andrea (Instituto de Investigaciones sobre los Recursos Naturales, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, México)
> UN Environment Programme World Conservation Monitoring Centre (UNEP-WCMC)
> United Nations Educational, Scientific and Cultural Organization (UNESCO)
> United Nations Educational, Scientific and Cultural Organization (UNESCO) - World Heritage Centre (WHC)
> USA: Boston University Marine Program
> USA: Coastal Change Analysis Program (C-CAP)
> USA: Coastal Resources Associates, Inc.
> USA: Deparmtent of Botany and Plant Pathology, Oregon State University
> USA: Department of Biology, Blakely Island Field Station, Seattle Pacific University
> USA: Environmental Protection Agency (EPA)
> USA: Florida Department of Environmental Protection
> USA: Florida International University
> USA: Florida Keys Land and Sea Trust
> USA: Moss Landing Marine Laboratories
> USA: San Diego State University
> USA: Seagrass Ecosystems Research Lab
> USA: Seagrass Recovery, Inc.
> USA: Seattle Pacific University
> USA: Smithsonian
> USA: Smithsonian Tropical Research Institute
> USA: The Bureau of the Convention on Wetlands
> USA: United States Geological Survey (USGS)
> USA: University of Alaska, Fairbanks
> USA: University of California Press
> USA: University of Miami - Rosenstiel School of Marine and Atmospheric Science
> USA: University of New Hampshire
> USA: University of Texas - Pan American
> USA: Virginia Institute of Marine Science, School of Marine Science
> USA: Washington State Department of Natural Resources Submerged Vegetation Monitoring Program
> World Bank

Field YEAR_ORGN 
Alias YEAR_ORGN
Data type String
Width 250
Precision 0
Scale 0

Field description
Year of origin of data reported by the source of each dataset (this can be year when data was taken or when the data was originally published by the source).

Description source
Commission for Environmental Cooperation 

Description of values
> 1882
> 1912
> 1913
> 1914
> 1915
> 1925
> 1939
> 1940
> 1948
> 1951
> 1952
> 1955
> 1956
> 1957
> 1958
> 1960
> 1964
> 1965
> 1967
> 1968
> 1969
> 1970
> 1971
> 1972
> 1973
> 1974
> 1974-1978
> 1975
> 1976
> 1977
> 1978
> 1979
> 1980
> 1980-1985
> 1981
> 1982
> 1983
> 1984
> 1986
> 1987
> 1988
> 1989
> 1990
> 1991
> 1992
> 1993
> 1994
> 1995
> 1996
> 1997
> 1998
> 1999
> 2000
> 2000-2019
> 2001
> 2002
> 2003
> 2004
> 2005
> 2006
> 2007
> 2008
> 2009
> 2010
> 2011
> 2012
> 2013
> 2013-2017
> 2013, 2016, 2018
> 2013, 2018
> 2014
> 2015
> 2015-2019
> 2015, 2016
> 2016
> 2016-2017
> 2016, 2018
> 2017
> 2018
> 2019
> 2020
> Not Reported

Field SURVEY_MET 
Alias SURVEY_MET
Data type String
Width 250
Precision 0
Scale 0

Field description
Reported method of data acquisition as reported by the source of each dataset.

Description source
Commission for Environmental Cooperation 

Description of values
> Field Survey
> Not Reported
> Plant Collection
> Remote Sensing
> Remote Sensing, Field Survey

Field SOURCE_DES 
Alias SOURCE_DES
Data type String
Width 250
Precision 0
Scale 0

Field description
General description of the source dataset used to derive each polygon.

Description source
Commission for Environmental Cooperation 

Description of values
> [MyFlorida.com]
> [Personal communication reported by UNEP-WCMC]
> A manipulative experiment demonstrates that blooms of the macroalga (Ulvaria obscura) can reduce eelgrass shoot density
> A preliminary look at effects of the Exxon Valdez oil spill on Green Island Research Natural Area
> AMEC Earth and Environmental (2007) Northumberland Strait Ecosystem Overview Report, Moncton, New Brunswick (File No. TE61035). Submitted to: Fisheries and Oceans Canada
> Applied Geomatics Research Group, Nova Scotia Community College
> Assessment of environmental suitability for growth of Zostera marina Eelgrass in San Francisco Bay, California, USA
> Baldwin J. R. & Lovvorn J.R. (1991) Expansion of seagrass habitat by the exotic Zostera japonica, and its use by dabbling ducks and brant in Boundary Bay, British Columbia. Marine Ecology Progress Series. 103: 119-127
> Bélisle, Mathieu (2016) Cartographie de la zostère marine au Parc national du Canada Kouchibouguac, Nouveau-Brunswick, à l’aide d’imagerie satellitaire à haute résolution, WorldView-2
> Bélisle, Mathieu (2019) Cartographie de la zostère marine au Park national du Canada Terra Nova, Terre-Neuve, à l'aide d'imagerie WorldView-2, Rapport de cartographie.
> British Columbia Marine Conservation Analysis Project Team (2011) Marine Atlas of Pacific Canada: A Product of the British Columbia Marine Conservation Analysis
> Chapman A. & Smith J. (2004) Quantifying the rapid decline of eelgrass beds on the eastern shore of Nova Scotia between 1992 and 2002. In: Hanson A.R. (Ed.) Status and conservation of eelgrass (Zostera marina) in Eastern Canada
> Chesapeake Bay USA: An unprecedented decline in submerged aquatic vegetation
> Collins, K. et al., (2016) Topo-Bathymetric Lidar and Photographic Survey of Various Bays located in NB, NS, and PEI. Technical report, Applied Geomatics Research Group, NSCC Middleton, NS
> Consortium Genivar-Waska (2017) Centrales de l’Eastmain-1-A et de la Sarcelle et dérivation Rupert. Suivi de la zostère marine de la côte nord-est de la baie James. Rapport d’étude 2014. Rapport du Consortium GENIVAR-Waska pour Hydro-Québec
> Cowichan First Nation, SeaChange Maine Conservation Society
> Cullain N. et al., (2018) Correction to: Spatial variation of macroinfaunal communities associated with Zostera marina beds across three biogeographicr regions in Atlantic Canada. Estuaries and Coasts 41: 1522-1523
> Cullain N. et al., (2018) Potential impacts of finfish aquaculture on eelgrass (Zostera marina) beds and possible monitoring metrics for management: a case study in Atlantic Canada. PeerJ 6:e5630
> Cullain N. et al., (2018) Spatial variation of macroinfaunal communities associated with Zostera marina beds across three biogeographic regions in Atlantic Canada. Estuaries and Coasts 41: 1381-1396
> Cullis-Suzuki S. et al., (2015) Tending the meadows of the sea: A disturbance experiment based on traditional indigenous harvesting of Zostera marina L.
> Dataset derived from Kauffman, J. et al. 2020
> Durance, C. (2013) Project comissioned by the Port Metro Vancouver
> Durance, C. (2017) Unpublished report
> Durance, C. (2018) Project comissioned by the Port Metro Vancouver
> Durance, C. (2018) Unpublished report
> Durance, C. (2019) A summary of eelgrass (Zostera marina) transplants completed by Precision Identification between 1994 and 2019. Unpublished data
> Durance: Various unpublished reports
> Ecology of eelgrass meadows in the Pacific Northwest: a community profile
> Ecology of Eelgrass Zostera marina, transplants in Izembek Lagoon, Alaska
> Ecosystem characteristics and research and management needs in the Florida Big Bend
> Environment and Climate Change Canada (2018) Canadian Wildlife Service
> Epibiotic protozoa (Ciliophora) on a community of Thalassia testudinium Banks ex Konig in a coral reef in Veracruz, Mexico
> Eutrophication of Buttermilk Bay, a Cape Cod coastal embayment: concentrations of nutrients and watershed nutrient budgets
> Everglades National Park
> Evidence of interaction between the seagrasses (Zostera marina and Zostera japonica) on the Pacific coast of Canada
> Fisheries and Oceans Canada (2009) Does eelgrass (Zostera marina) meet the criteria as an ecologically significant species? DFO Canadian Science Advisory Secretariat Science Advisory Report 2009/018
> Friends of Boundary Bay
> Garbary D. & Munro J. (2004) Eelgrass decline: reality and causation. In: Hanson AR (Ed.) Status and conservation of eelgrass (Zostera marina) in Eastern Canada. Technical Report Series No. 412. Canadian Wildlife Service, Atlantic Region
> Garbary, D. J. et al., (2014) Drastic decline of an extensive eelgrass bed in Nova Scotia due to the activity of the invasive green crab (Carcinus maenas). Marine Biology 161: 3-15
> Geographic coordinates of sea grasses visual observations at various locations in the states of Campeche, Yucatán and Quintana Roo
> Gotceitas, V. et al., (1996) Description and distribution of habitat types and juvenile Atlantic cod in the nearshore environment along the northeast coast of Newfoundland, Canada. Memorial University of Newfoundland. Final Report
> Gotceitas, V. et al., (1997) Use of eelgrass beds (Zostera marina) by juvenile Atlantic cod (Gadus morhua). Canadian Journal of Fisheries and Aquatic Sciences. 54(6):1306-1319
> Grant C. & Provencher L. (2007) Caractérisation de l’habitat et de la faune des herbiers de Zostera marina (L.) de la péninsule de Manicouagan (Québec). Rapport technique Canadien des sciences halieutiques et aquatiques. 2772 : VIII + 65 p
> Gregory, R. S. et al., (1997) Temporal and spatial survey of the fish community and its distribution among nearshore habitat types in the marine environment in the vicinity of Terra Nova National Park
> Gregory, R. S. et al., (2020) Strength of three cohorts (2016-18) of Atlantic cod, from nearshore surveys of demersal age 0 and 1 juveniles in Newman Sound
> Gregory, Robert [Achived records]
> Hakai Institute, 2018 (doi.org/10.21966/ezev-0v96)
> Hastings, K. et al., (2014) Ecologically and Biologically Significant Areas in the Atlantic Coastal Region of Nova Scotia. Canadian technical report of fisheries and aquatic sciences. 3107: XII + 174 p
> Herrera-Silveira, Jorge (CINVESTAV-IPN, Merida) [Personal communication reported by UNEP-WCMC]
> Howe Sound/Atl'ka7tsem Marine Reference Guide, Moonstone Enterprises Interpretation and Consulting (2019) Town of Gibsons and Howe Sound/Atl'ka7tsem Eelgrass Survey Report
> Information about the sequestration rates and sources of carbon to local sediments remains sparse. Estimates of sediment OC stocks and sequestration rates from 139 cores collected from temperate seagrass (Zostera marina) meadows in AK, BC, WA, OR
> Irradiance reduction: effects on standing crops of the Eelgrass (Zostera marina) in a coastal lagoon
> Jacques Whitford Ltd. (2010) Technical Data Report. Marine Fish and Fish Habitat. Enbridge Northern Gateway Project
> Laguna de Celestún, Yucatán, México
> Le Breton, S. et al., (2013) Suivi des zosteraies et de la biodiversité des poissons à l'embouchure de la rivière Romaine et dans la baie des Sept Îles pour l'année 2012. Agence Mamu Innu Kaikusseth
> Lemieux C. & Lalumière R. (1995) Répartition de la zostère marine (Zostera marina) dans l'estuaire du fleuve Saint-Laurent et dans la baie des Chaleurs (1994). Rapport présenté au Service canadien de la faune
> Listados florísticos de México, XI. Reserva de la Biosfera el Vizcaino, Baja California Sur
> Locke A. & Hanson J. M. (2004) Changes in eelgrass in southern Gulf of St. Lawrence estuaries. In: Hanson AR (Ed.) Status and conservation of eelgrass (Zostera marina) in Eastern Canada. Technical Report Series No. 412. Canadian Wildlife Service
> Lotze, H. K. et al., (2003) Nutrient pollution: A eutrophication survey of eelgrass beds in estuaries and coastal bays in northern and eastern New Brunswick. Conservation Council of New Brunswick
> Marine region 15: Northeast Pacific
> Marine Region 7: Wider Caribbean
> Martel, M-C. et al., (2009) Distribution and description of eelgrass beds in Québec. DFO Canadian Science Advisory Secretariat, Research Document, 2009/050. VIII + 37 p
> Matheson, K. et al., (2016) Linking eelgrass decline and impacts on associated fish communities to European green crab Carcinus maenas invasion. Marine Ecology Progress Series. 548: 31
> McCarthy, C. (2013) Estuary Therapy. Advances in coastal restoration at Kejimkujik National Park Seaside. Marine Green Crab Summit
> Monitoring seagrass changes in Indian River Lagoon, Florida using fixed transects
> Nellis, P. et al., (2012) Monitoring of vegetation and fish in six eelgrass beds in Quebec (2005-2010). Canadian technical report of fisheries and aquatic sciences. 2985: IX+96 p
> New Brunswick seagrass locations based on a published report by Hanson, A.R. Distribution of Eelgrass in the Maritime Provinces provided by Dr. Fred T. Short
> Niles, M. et al., (2014) Bivalve aquaculture and eelgrass (Zostera marina) coverage on a bay-wide scale utilizing bathymetric lidar and aerial photography
> Nomme K. M. & Harrison P. G. (1991) Evidence for interaction between the seagrasses Zostera marina and Zostera japonica on the Pacific coast of Canada. Canadian Journal of Botany. 69:2004-2010
> Norris, M. J. (1999) A multiscale analysis of juvenile cod (Gadus spp.) habitat association in a nearshore environment. BSc Honours Biology Thesis, Memorial University of Newfoundland. St. John's. 52 p
> Northeast Pacific Seagrass Summary
> Not Reported
> Nova Scotia seagrass locations based on a published report by Hanson, A.R. Distribution of Eelgrass in the Maritime Provinces provided by Dr. Fred T. Short
> O'Neill, J. D. et al., (2011) Remote Sensing of Shallow Coastal Benthic Substrates: In situ Spectra and Mapping of Eelgrass (Zostera marina) in the Gulf Islands National Park Reserve of Canada. Remote Sensing. 3:975-1005
> Parks Canada (2014) Gulf Islands National Park Reserve. Eelgrass Monitoring (www.pc.gc.ca/en/pn-np/bc/gulf/nature/recherche-research/~/media/D00AFF340BFF49AA84FD1EC7FCF2DBAC.ashx)
> Population variability of four sympatric penaeid shrimps (Farfantepenaeus spp.) in a tropical lagoon of Mexico
> Preserved Specimen
> Prince Edward Island seagrass locations based on a published report by Hanson, A.R. Distribution of Eelgrass in the Maritime Provinces provided by Dr. Fred T. Short
> Productivity and biomass of Thalassia testudinum as related to water column nutrient availability and epiphyte levels, field observations and experimental studies
> Productivity estimation in Halodule wrightii: comparison of leaf-clipping and leaf-marking techniques, and the importance of clip height
> Project Watershed
> Puerto Morelos, Quintana Roo, México
> Qalipu Mi’kmaq First Nation Band (2015) Spatial variation in the abundance of eelgrass (Zostera marina) at eight sites in western Newfoundland, Canada (http://qalipu.ca/qalipu/wp-content/uploads/2016/05/Eelgrass-2014-2015.pdf)
> Quantifying eelgrass habitat loss in relation to housing development and nitrogen loading in Waquoit Bay, Massachusetts
> Ramsar Sites Database Service
> Rao, A. S. et al., (2014) Eelgrass (Zostera marina) locations in Newfoundland and Labrador. Canadian technical report of fisheries and aquatic sciences. 3113: VI + 19 p
> Raz-Guzmán, Andrea (Instituto de Investigaciones sobre los Recursos Naturales, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, México) [Personal communication reported by UNEP-WCMC]
> Reshitnyk, L. et al., (2014) Evaluation of WorldView-2 and acoustic remote sensing for mapping benthic habitats in temperate coastal Pacific waters. Remote Sensing of Environment. 153: 7-23
> Roberts Timothy (2017) Influence of environmental factors on eelgrass bed density and biomass across three bays in Atlantic Canada. Faculty of Forestry and Environmental Management, University of New Brunswick, Fredericton, NB, Canada
> Role of seagrasses and mangroves in estuarine food webs: temporal and spatial changes in stable isotope composition and amino acid content during decomposition
> Royal BC museum specimen. V149588. Zostera marina L. Brayshaw, T.88-032. Collected on July 27, 1988 at Tofino (49.1083, -125.9)
> Royal BC museum specimen. V170129. Zostera marina L. Jamison, J. (614) Collected on May 18, 1997 at Denman Island; Denman Point (49.5666, -124.8333)
> Royal BC museum specimen. V171596. Zostera marina L. Lomer, F. & Grove, N. (97436) Collected on July 20, 1997 at Queen Charlotte City; Skidegate (53.25 -132.00)
> Royal BC museum specimen. V178073. Zostera marina L. Ceska, A. (s.n.) Collected on October 23, 1969 at Sedgwick Bay; Lyell Island (52.6333, -131.5667)
> Royal BC museum specimen. V180313. Zostera marina L. Ceska, A. & Mitchell, B. (001239). Collected on July 10, 1978 at Campbell River; White Rock (49.1666, -122.7833)
> Royal BC museum specimen. V193499. Zostera marina L. Marr, K., Copley, C. & McNall, M. (KM6136) Collected on June 20, 2005 at Porcher Island (53.9458, -130.6819)
> Royal BC museum specimen. V193758. Zostera marina L. Marr, K. & Hanke, G. (KM6270) Collected on June 21, 2005 at Larsen Island (53.6083, -130.575)
> Royal BC museum specimen. V193759. Zostera marina L. Marr, K. & Lambert, P. (KM6271) Collected on June 22, 2005 at Banks Island (53.6072, -130.5353)
> Royal BC museum specimen. V194076. Zostera marina L. Marr, K., Copley, C. & McNall, M. (KM6194) Collected on June 21, 2005 at Banks Island; Rawlinson Anchorage (53.5761, -130.5427)
> Royal BC museum specimen. V199472. Zostera marina L. Jones, L. (s.n.) Collected on January 1, 1980 at Malksope River (50.1333, -127.4167)
> Schmidt, A. L. et al., (2011) Ecosystem structure and services in eelgrass Zostera marina and rockweed Ascophyllum nodosum habitats. Marine Ecology Progress Series. 473: 51-68
> Schmidt, A. L. et al., (2012) Regional-scale effects of eutrophication on ecosystem structure and services of seagrass beds. Limnology and Oceanography. 57(5): 1389–1402
> Seagrass distribution in the Northern Gulf of Mexico
> Seagrass Ecosystem Research Lab
> Seagrass Recovery, Inc.
> Seagrass Status and Trends Monitoring Data
> Seagrasses
> Seagrasses - National Status Report, Caribbean Region
> Seagrasses - National Status Report, Central America
> Seagrasses of the Northeast Pacific
> Seymour, N. R., et al., (2002) Decline of Canada geese (Branta canadensis) and common goldeneye (Bucephala clangula) associated with a collapse of eelgrass (Zostera marina) in a Nova Scotia estuary. Helgoland Marine Research 56: 198-202
> Sharp G. & Semple R. (2004) Status of eelgrass beds in south-western Nova Scotia. In: Hanson AR (Ed.) Status and conservation of eelgrass (Zostera marina) in Eastern Canada. Technical Report Series No. 412. Canadian Wildlife Service, Atlantic Region
> Sian Ka'an
> Southern Gulf of St-Lawrence Coalition on Sustainability (nd) Executive Summary: Atlantic Eelgrass Monitoring Consortium (Atl-EMC)
> Speller R. & Harper J. R. (2003) The distribution of eelgrass in Okeover and Malaspina Inlets. Coastal and Oceans Resources, Inc.
Here’s your list with consistent formatting (added a tab + space after the `>` marker, and fixed the Vandermeulen entry so it stays inline instead of breaking awkwardly):
> Standing stocks and other features of Eelgrass (Zostera marina) populations on the coast of Alaska  
> The autecology and production dynamics of Eelgrass (Zostera marina) in Netart's Bay, Oregon  
> The distribution of nearshore fishes in kelp and eelgrass communities in Prince William Sound, Alaska: associations with vegetation and physical habitat characteristics  
> The Howe Sound/Atl’ka7tsem Marine Reference Guide is a collaborative and community-led initiative whose goal is to build capacity to protect the human and natural values associated with Howe Sound/Atl’ka7tsem’s marine environment  
> The MAB Programme  
> The seagrass ecosystem and resources in Latin America  
> The Seagrasses of The Gulf of Mexico  
> The Seagrasses of the Pacific Coast of North America  
> The Seagrasses of The Western North Atlantic  
> The World Database on Protected Areas  
> Top-down impact through a bottom-up mechanism. In situ effects of limpet grazing on growth, light requirements and survival of the Eelgrass (Zostera marina)  
> Trophic structure related to seagrass habitat complexity  
> Vandermeulen, H. (2013) Mapping Eelgrass (Zostera marina) with a novel towfish: Richibucto and Shippagan, New Brunswick. Canadian Technical Report of Fisheries and Aquatic Sciences. 3064: V + 19 p  
> Variation in ecological parameters of Thalassia testudinum across the CARICOMP network  
> Whale Sanctuary of El Vizcaino  
> Wong, M. C. (2018) Secondary production of macrobenthic communities in seagrass (Zostera marina, Eelgrass) beds and bare soft sediments across differing environmental conditions in Atlantic Canada. Estuaries and Coasts. 41:536-548  
> Yakimishyn, J. (2018) Parks Canada  
> Yakimishyn, J. (2019) Parks Canada

Field CITATION 
Alias CITATION
Data type String
Width 254
Precision 0
Scale 0

Field description
Full citation of the used data source. Modified APA 7th citation style to fit in a maximum of 254 characters.

Description source
Commission for Environmental Cooperation 

Description of values
> Aladro-Lubel, M. A. & Martinez-Marillo, M. E. (1999) 'Epibiotic protozoa (Ciliophora) on a community of Thalassia testudinium Banks ex Konig in a coral reef in Veracruz, Mexico', 239-254
> Backman, T. W. & Barilotti, D. C. (1976) 'Irradiance reduction: effects on standing crops of the eelgrass Zostera marina in a coastal lagoon', 33-40
> Beaty, F. & Sanford, D. (2019) 'Town of Gibsons and Howe Sound / Atl’ka7tsem Eelgrass Survey Report'
> Brouns, J. J. W. M. (1982) 'Seagrass Ecosystem Research Lab' \[Seagrass Research Page at Florida International University]
> Bureau of the Convention on Wetlands (2003) 'Ramsar Sites Database Service' \[Retrieved from [https://rsis.ramsar.org](https://rsis.ramsar.org)]
> CARICOMP (1996) 'Variation in ecological parameters of Thalassia testudinum across the CARICOMP network', 663-668
> Coastal Change Analysis Program (1995) 'Northeast Pacific Seagrass Summary'
> Croom, M. et al. (1995) 'Marine region 15: Northeast Pacific' In: Kelleher, G. et al. (Eds.) A Global Representative System of Marine Protected Areas. Vol. 4. South Pacific, Northeast Pacific, Northwest Pacific
> Data provided by Matt Christensen (University of British Columbia)
> Dean, T. A. et al. (2000) 'The distribution of nearshore fishes in kelp and eelgrass communities in Prince William Sound, Alaska: associations with vegetation and physical habitat characteristics', 271-287
> Environment and Climate Change Canada (2020) 'Canadian Environmental Sustainability Indicators: Eelgrass in Canada'
> EPA (2017) 'U.S. Greenhouse Gases Inventory'
> Florida Department of Environmental Protection (2000) 'MyFlorida.com - The Official Portal of the State of Florida' \[Retrieved April 30, 2020, from [http://www.myflorida.com/](http://www.myflorida.com/)]
> Guzmán, A. (2001) \[Personal communication]
> Handley, L. R. (2001) 'Seagrass distribution in the Northern Gulf of Mexico'
> Hanson, A. & Calkins, L. (1996) 'Wetlands of the Maritime Provinces: Revised Documentation for the Wetlands Inventory'. CWS Technical Report No. 267. Canadian Wildlife Service-Environment Canada. Sackville, New Brunswick, Canada, 67 pp
> Herrera-Silveira, J. A. (2001) \[Personal communication reported by UNEP-WCMC]
> Herrera-Silveira, J. A. & Ramírez-Ramírez, J. (1998) 'Laguna de Celestún, Yucatán, México', 43-55
> Hoffman, B. (2001) \[Personal communication reported by UNEP-WCMC]
> IUCN & UNEP-WCMC (2003) 'The World Database on Protected Areas (WDPA)'. Cambridge, UK: UNEP-WCMC \[Available at: [www.protectedplanet.net](http://www.protectedplanet.net)]
> Juday, G. P. & Foster, N. R. (1990) 'A preliminary look at effects of the Exxon Valdez oil spill on Green Island Research Natural Area'. Agroborealis-Alaska Agricultural and Forestry Experiment Station, University of Alaska-Fairbanks (USA)
> Kauffman, J. et al. (2020) 'Blue carbon of the Pacific Northwest Coast, United States'. Global Change Biology 26(10): 5679-5692
> Kentula, M. E. & McIntire, C. D. (1986) 'The autecology and production dynamics of eelgrass (Zostera marina) in Netart's Bay, Oregon'. Estuaries 9: 188 \[doi:10.2307/1352130]
> Kowalski, J. L., DeYoe, H. R., Allison, T. C. & Kaldy, J. E. (2001) 'Productivity estimation in Halodule wrightii: comparison of leaf-clipping and leaf-marking techniques, and the importance of clip height'. Marine Ecology Progress Series 220: 131-136
> Luz, J. L. L. de la, et al. (1995) 'Listados florísticos de México XI. Reserva de la Biosfera El Vizcaíno, Baja California Sur', 20
> Mattson, R. A. (1999) 'Seagrass ecosystem characteristics and research and management needs in the Florida Big Bend'. In: Bortone, S. A. (Ed.) Seagrasses: monitoring, ecology, physiology, and management. CRC Marine Science Series, Boca Raton, FL, 259-277
> McRoy, C. P. (1970) 'Standing stocks and other features of eelgrass (Zostera marina) populations on the coast of Alaska'. Journal of the Fisheries Research Board of Canada 27(10): 1811-1821 \[doi: 10.1139/f70-199]
> Morris, L. J. et al. (2000) 'Monitoring seagrass changes in Indian River Lagoon, Florida using fixed transects', 167-176
> Nelson, T. A. & Lee, A. (2001) 'A manipulative experiment demonstrates that blooms of the macroalga (Ulvaria obscura) can reduce eelgrass shoot density', 149-154
> Nomme, K. M. & Harrison, P. G. (1991) 'Evidence of interaction between the seagrasses (Zostera marina and Zostera japonica) on the Pacific coast of Canada 2004-2010'
> Onuf, C. et al. (2003) 'The Seagrasses of The Gulf of Mexico'. In: Green, E. P. & Short, F. T. (Eds.) World Atlas of Seagrasses. Berkeley, California (USA): University of California Press
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> Pérez-Espinosa, I. & Gallegos-Martínez, M. (2021) 'Pastos marinos en la Península de Yucatán'. National Commission for the Knowledge and Use of Biodiversity (CONABIO) - UAM-I
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Field SOURCE_ID 
Alias SOURCE_ID
Data type String
Width 10
Precision 0
Scale 0

Field description
Identification code of the datasets reported in the data sources full description document.

Description source
Commission for Environmental Cooperation 

Description of values
> SG_27
> SG_28
> SG_29
> SG_30
> SG_31
> SG_32
> SG_33
> SG_34
> SG_35
> SG_36
> SG_37
> SG_38

Metadata Details 

Metadata language English (UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format

Metadata identifier NAatlas_2.01_3_metadata

Scope of the data described by the metadata dataset
Scope name dataset

Last update 2021-04-25 

ArcGIS metadata properties
Metadata format ArcGIS 1.0
Standard or profile used to edit metadata ISO19115_3

Created in ArcGIS for the item 2021-04-27 22:08:40
Last modified in ArcGIS for the item 2025-08-28 21:16:41

Automatic updates
Have been performed Yes
Last update 2025-08-20 16:44:10
Item location history
Item copied or moved 2021-04-27 22:08:41
From E:\Dropbox\CEC\5_North American Atlas update\North American Blue Carbon_update\Delivery_files\CEC_North_America_Saltmarshes_Py\CEC_North_America_Saltmarshes_Py
To \\GEODISCUS\E$\Dropbox\CEC\5_North American Atlas update\North American Blue Carbon_update\CEC_North_America_Saltmarshes_draft_for_review_20210312\CEC_North_America_Saltmarshes_Py

Metadata Contacts 

Metadata contact - point of contact
Individual's name Dominique Croteau
Organization's name Commission for Environmental Cooperation (CEC)
Contact's position Project Lead, Geospatial and Environmental Information

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Metadata contact - publisher
Organization's name Commission for Environmental Cooperation (CEC)

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Online resource
Online location (URL)https://www.cec.org/north-american-environmental-atlas/

Metadata Maintenance 

Maintenance
Update frequency as needed

Maintenance contact - publisher
Organization's name Commission for Environmental Cooperation (CEC)

Contact information 
Phone
Voice +1 514 350 4300
Fax +1 438 701 1434
Address
Type physical
Delivery point 1001 Robert-Bourassa Boulevard, Suite 1620
City Montreal
Administrative area Quebec
Postal code H3B 4L4
Country CA
e-mail addressinfo@cec.org
Online resource
Online location (URL)https://www.cec.org/north-american-environmental-atlas/

Metadata Constraints 

Constraints
Limitations of use

None. Acknowledgement of the Commission for Environmental Cooperation would be appreciated in products derived from these data.


Legal constraints
Limitations of use
This material is licensed under CC BY 4.0, allowing non-exclusive rights to distribute, remix, adapt, and build upon the material in any medium or format, including for commercial purposes, so long as attribution is given to the creator.