• Arctic SDI catalogue
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Eelgrass in Quebec

This shapefile dataset was designed using polygons extracted from the Cartography of Coastal Ecosystems of Maritime Quebec geodatabase (2022, Laboratory for Dynamics and Integrated Management of Coastal Zones, Fisheries and Oceans Canada), described in the paragraph below. It consists of polygons with eelgrass and incorporates attributes describing the vegetation cover, the composition of the seagrass beds, the associated ecosystem name, the imagery data that allowed photo-interpretation and the presence or absence of field data. A unique sequence number associated with each polygon makes it possible to trace the paired polygon of the geodatabase of coastal ecosystems to attribute values not detailed in this shapefile. The study area includes all of the estuarine and maritime coasts of Quebec, with the exception of certain sectors, including most of the Lower North Shore and Anticosti Island, with the exception of villages of Kegaska, la Romaine, Chevery, Blanc-Sablon and Port-Menier. Some islands off the estuary and gulf coasts are part of the region covered, such as Île d'Orléans, Isle-aux-Coudres, Île Verte and Île Bonaventure.

The Mapping of Coastal Ecosystems of Maritime Quebec was carried out jointly by the Laboratory for Dynamics and Integrated Coastal Zone Management (LDGIZC) of the University of Quebec at Rimouski as part of the Coastal Resilience Project; and by the Fisheries and Oceans Canada team, as part of the Integrated Marine Response Planning Program (IMRP). A classification of coastal ecosystems was carried out on more than 4,200 km of coastal corridor, focusing on estuarine and maritime coasts of Quebec located between the limit of the upper foreshore and the shallow infralittoral (about 10m deep). The mapping method developed is based on semi-automated segmentation and a photo-interpretation of coastal ecosystems, using very high resolution multispectral photographs (RBVI) acquired between 2015 and 2020 by DFO. The classification of polygons is based on the assignment of predefined value classes for the biological and physical attributes under study (e.g., substrates, plant type, vegetation cover, geosystem, etc. ). Helicopter-born oblique photographs and field data helped to reduce the uncertainty associated with photo-interpretation. UQAR and DFO conducted field sampling campaigns targeting the mediolittoral (4,390 stations) and the lower mediolittoral and infralittoral zones (2,959 stations), respectively , which validated some of the attributes identified by photo-interpretation and provided detailed information on community structure . The geodatabase of the Mapping of coastal ecosystems is hosted and managed by UQAR on their SIGEC-Web cartographic platform: https://ldgizc.uqar.ca/Web/sigecweb

Credits

© DFO (2023, Fisheries and Oceans Canada)

Provencher-Nolet, L., Paquette, L., Pitre, L.D., Grégoire, B. and Desjardins, C. 2024. Cartographie des macrophytes estuariens et marins du Québec. Rapp. Tech. Can. Sci. halieut. Aquat. 3617 : v + 99 p.

Grégoire, B., Pitre, L.D., Provencher-Nolet, L., Paquette, L. and Desjardins, C. 2024. Distribution d’organismes marins de la zone côtière peu profonde du Québec recensés par imagerie sous-marine de 2017 à 2021. Rapp. tech. can. sci. halieut. aquat. 3616 : v + 78 p.

Grégoire, B. 2022. Biodiversité du relevé côtier Planification pour une intervention environnementale intégrée dans l’estuaire et le golfe du Saint-Laurent (2017–2021). Observatoire global du Saint-Laurent. [Jeu de données]

Jobin, A., Marquis, G., Provencher-Nolet, L., Gabaj Castrillo. M. J., Trubiano C., Drouet, M., Eustache-Létourneau, D., Drejza, S. Fraser, C. Marie, G. et P. Bernatchez (2021) Cartographie des écosystèmes côtiers du Québec maritime — Rapport méthodologique. Chaire de recherche en géoscience côtière, Laboratoire de dynamique et de gestion intégrée des zones côtières, Université du Québec à Rimouski. Rapport remis au ministère de l’Environnement et de la Lutte contre les changements climatiques, septembre 2021, 98 p.

Simple

Date ( RI_367 )
2023-05-04
Date ( RI_366 )
2023-05-04
RI_414
  Government of Canada; Fisheries and Oceans Canada; Demersal and Benthic Sciences Branch (DBSB) - Louis-David Pitre ( Biologist in aquatic science )
Maurice Lamontagne Institute, 850, route de la Mer , Mont-Joli , Quebec , G5H 3Z4 ,
(418) 775-0617
Status
completed; complété RI_593
Maintenance and update frequency
asNeeded; auBesoin RI_540
Keywords ( RI_528 )
  • Eelgrass, Vegetation, Plants, Quebec, Gulf of St. Lawrence, Estuary of St. Lawrence, Ecosystems, Coastal
Thésaurus des sujets de base du gouvernement du Canada Government of Canada Core Subject Thesaurus ( RI_528 )
  • Aquatic ecosystems
  • Aquatic wildlife
Classification
unclassified; nonClassifié RI_484
Use limitation
Open Government Licence - Canada (http://open.canada.ca/en/open-government-licence-canada)
Access constraints
license; licence RI_606
Use constraints
license; licence RI_606
Spatial representation type
grid; grille RI_636
Metadata language
eng; CAN
Metadata language
fre
Topic category
  • Environment
  • Oceans
Begin date
2015-05-04
End date
2021-12-31
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Reference system identifier
https://www.epsg.io / EPSG:4269
Distribution format
  • SHP ( 1 )

RI_414
  Government of Canada; Fisheries and Oceans Canada; Data Management Section - Scientific Advice, Information and Support Branch - Data Management Section ( Biologist )
Maurice Lamontagne Institute, 850, route de la Mer , Mont-Joli , Quebec , G5H 3Z4 , Canada
OnLine resource
Web service of eelgrass in Quebec ( ESRI REST: Map Server )

Web Service;ESRI REST;fra

OnLine resource
Données Zostère ( HTTPS )

Dataset;SHP;eng,fra

OnLine resource
Vocabulary dictionary ( HTTPS )

Supporting Document;CSV;eng,fra

OnLine resource
Data dictionary ( HTTPS )

Supporting Document;CSV;eng,fra

OnLine resource
Web service of eelgrass in Quebec ( ESRI REST: Map Server )

Web Service;ESRI REST;eng

OnLine resource
Parent project publication ( HTTPS )

Supporting Document;HTML;eng,fra

File identifier
d1b9d3ae-a488-4694-90ca-12d739996066 XML
Metadata language
fra; CAN
Character set
utf8; utf8 RI_458
Parent identifier
Biological Sensitivity Mapping for Oil Spill Planning and Response, Quebec Region d8a6c6fd-76cc-4d68-a949-c4d80eb2f296
Hierarchy level
dataset; jeuDonnées RI_622
Date stamp
2025-02-06T17:52:38.746Z
Metadata standard name
North American Profile of ISO 19115:2003 - Geographic information - Metadata
Metadata standard version
CAN/CGSB-171.100-2009
RI_413
  Government of Canada; Fisheries and Oceans Canada; Demersal and Benthic Sciences Branch (DBSB) - Louis-David Pitre ( Biologist )
Maurice Lamontagne Institute, 850, route de la Mer , Mont-Joli , Quebec , G5H 3Z4 , Canada
 
 

Overviews

overview
Map of stations

Spatial extent

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Keywords


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Associated resources

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