Description

Available information for the Estuary and Gulf of St. Lawrence on salinity, temperature, dissolved oxygen, depth, slope, and variability in landscape and sediments, were aggregated using a grid made up of 100 km2 cells as a basis for mapping and describing marine habitats for conservation and integrated management purposes. For example, 26 variables were selected to describe depth, slope, salinity and temperature. Based on that information, cluster analyses were conducted grouping cells into 13 different megahabitats. Four megahabitats described the deep waters, and areas outside channels formed 9 megahabitats: four in the southern Gulf and five in the northern Gulf. Purpose The tool proposes a novel way of making validated and integrated data available to end users. Potential applications include the screening of areas considered for inclusion in a network of protected areas and a quantitative assessment of surface areas for each class of habitat. The method can also be applied to describe the habitats of species at risk. Additional Information See the report mentioned below for a more detailed description of the treatments for each variable: Dutil, J.-D., Proulx, S., Chouinard, P.-M., and Borcard. D. 2011. A hierarchical classification of the seabed based on physiographic and oceanographic features in the St. Lawrence. Can. Tech. Rep. Fish. Aquat. Sci. 2916: vii + 72 p.

Resources

Name	Format	Description	Link
Data Dictionary	CSV		https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/3e89da6c-fd76-4e53-af62-dfec141ffda5/attachments/DataDictionary_DictionnaireDonnees_megahabitat.csv
Megahabitats	CSV		https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/3e89da6c-fd76-4e53-af62-dfec141ffda5/attachments/Megahabitats_DB_DonneesData_megahabitats.csv
Megahabitats	ESRI Shape		https://api-proxy.edh-cde.dfo-mpo.gc.ca/catalogue/records/3e89da6c-fd76-4e53-af62-dfec141ffda5/attachments/Megahabitats.zip
Megahabitats	Ersi REST		https://egisp.dfo-mpo.gc.ca/arcgis/rest/services/open_data_donnees_ouvertes/megahabitats_db/MapServer/0
Megahabitats	Ersi REST		https://egisp.dfo-mpo.gc.ca/arcgis/rest/services/open_data_donnees_ouvertes/megahabitats_db/MapServer/0

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