Beluga Calves Relative Summer Density in the St. Lawrence Estuary

Beluga Calves Relative Summer Density in the St. Lawrence Estuary This layer represents the relative summer density of beluga calves in the St. Lawrence Estuary based on 35 aerial surveys carried out from 1990 to 2009. The boundaries of the areas were determined by combining the highest densities until the desired proportion of the population was obtained using kernel density estimation in order to obtain a smooth and continuous density distribution. Within Fisheries and Oceans Canada (DFO), the ecosystem approach is considered as a tool for operational planning, project implementation and preparation of advisory reports. In response to this strategic direction, the DFO science division is committed to implement the ecosystem approach in its activities as Ecosystem Research Initiatives (ERI) in each of the six administrative regions of DFO. In the Quebec region, two pilot projects were implemented, of which one aimed to define and characterize the habitat of the St. Lawrence beluga (Delphinapterus leucas). Data sources and references: DFO. 2016. Ecosystem Research Initiative (ERI): Integrated Advice on the Summer Habitat of the St. Lawrence Estuary Beluga (Delphinapterus leucas). DFO Can. Sci. Advis. Sec. Sci. Advis. Rep. 2016/030. Mosnier, A., R. Larocque, M. Lebeuf, J.-F. Gosselin, S. Dubé, V. Lapointe, V. Lesage, V., H. Bourdages, D. Lefaivre, S. Senneville and C. Chion. 2016. Définition et caractérisation de l'habitat du béluga (Delphinapterus leucas) de l'estuaire du Saint-Laurent selon une approche écosystémique. Secr. can. de consult. sci. du MPO. Doc. de rech. 2016/052. vi + 93 p. 2023-07-11 Fisheries and Oceans Canada gddaiss-dmsaisb@dfo-mpo.gc.ca Nature and EnvironmentScience and TechnologyQuebecEstuary of St. LawrenceWhaleMarine mammalsBeluga whaleCalvesDelphinapterus leucasurn:lsid:marinespecies.org:taxname:137115Aquatic animalsAquatic ecosystemsAquatic wildlife Beluga calves relative summer density in the St. Lawrence EstuaryESRI REST https://gisp.dfo-mpo.gc.ca/arcgis/rest/services/FGP/Biological_Sensitivity_Mapping_Oil_Spill_Planning_Response_Quebec_Region_en/MapServer/9 Beluga calves relative summer density in the St. Lawrence EstuaryESRI REST https://gisp.dfo-mpo.gc.ca/arcgis/rest/services/FGP/Biological_Sensitivity_Mapping_Oil_Spill_Planning_Response_Quebec_Region_fr/MapServer/9 Data dictionaryCSV https://pacgis01.dfo-mpo.gc.ca/FGPPublic/Biological_Sensitivity_Mapping_Oil_Spill_Planning_Response_Quebec_Region/DataDictionary_DictionnaireDonnees_CouchesPIEI2022.csv Layer of the beluga calves relative summer density in the St. Lawrence EstuarySHP https://pacgis01.dfo-mpo.gc.ca/FGPPublic/Biological_Sensitivity_Mapping_Oil_Spill_Planning_Response_Quebec_Region/11-Beluga_AiresDensiteVeaux.zip

This layer represents the relative summer density of beluga calves in the St. Lawrence Estuary based on 35 aerial surveys carried out from 1990 to 2009. The boundaries of the areas were determined by combining the highest densities until the desired proportion of the population was obtained using kernel density estimation in order to obtain a smooth and continuous density distribution.

Within Fisheries and Oceans Canada (DFO), the ecosystem approach is considered as a tool for operational planning, project implementation and preparation of advisory reports. In response to this strategic direction, the DFO science division is committed to implement the ecosystem approach in its activities as Ecosystem Research Initiatives (ERI) in each of the six administrative regions of DFO. In the Quebec region, two pilot projects were implemented, of which one aimed to define and characterize the habitat of the St. Lawrence beluga (Delphinapterus leucas).

Data sources and references:

DFO. 2016. Ecosystem Research Initiative (ERI): Integrated Advice on the Summer Habitat of the St. Lawrence Estuary Beluga (Delphinapterus leucas). DFO Can. Sci. Advis. Sec. Sci. Advis. Rep. 2016/030.

Mosnier, A., R. Larocque, M. Lebeuf, J.-F. Gosselin, S. Dubé, V. Lapointe, V. Lesage, V., H. Bourdages, D. Lefaivre, S. Senneville and C. Chion. 2016. Définition et caractérisation de l'habitat du béluga (Delphinapterus leucas) de l'estuaire du Saint-Laurent selon une approche écosystémique. Secr. can. de consult. sci. du MPO. Doc. de rech. 2016/052. vi + 93 p.

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Contact Information

Delivery Point: Maurice Lamontagne Institute, 850, route de la Mer

City: Mont-Joli

Administrative Area: Quebec

Postal Code: G5H 3Z4

Country: Canada

Electronic Mail Address: gddaiss-dmsaisb@dfo-mpo.gc.ca

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