Atlas of Seabirds at Sea in Eastern Canada 2006 - 2020

The atlas provides printable maps, Web Services and downloadable data files representing seabirds at-sea densities in eastern Canada.

The information provided on the open data web site can be used to identify areas where seabirds at sea are found in eastern Canada. However, low survey effort or high variation in some areas introduces uncertainty in the density estimates provided. The data and maps found on the open data web site should therefore be interpreted with an understanding of this uncertainty.

Data were collected using ships of opportunity surveys and therefore spatial and seasonal coverage varies considerably. Densities are computed using distance sampling to adjust for variation in detection rates among observers and survey conditions. Depending on conditions, seabirds can be difficult to identify to species level. Therefore, densities at higher taxonomic levels are provided. more details in the document: Atlas_SeabirdsAtSea-OiseauxMarinsEnMer.pdf.

By clicking on "View on Map" you will visualize a example of the density measured for all species combined from April to July - 2006-2020. ESRI REST or WMS map services can be added to your web maps or opened directly in your desktop mapping applications. These are alternatives to downloading and provide densities for all taxonomical groups and species as well as survey effort.

Données et ressources

Info additionnelle

Champ	Valeur
Dernière modification	avril 17, 2026, 22:00 (TU)
Créé le	avril 17, 2026, 22:00 (TU)
contact_email	Matthieu.Beaumont@ec.gc.ca
contact_person	{"fr": "Gouvernement du Canada; Environnement et Changement climatique Canada; Opérations régionales, région du Québec,ec.enviroinfo.ec@canada.ca", "en": "Government of Canada; Environment and Climate Change Canada; Regional Operations, Quebec Region,1-800-668-6767,enviroinfo@ec.gc.ca"}
criticality_level	[]
data_dictionary	EPSG:4326,http://www.epsg-registry.org,Esri
geographic_scope	[]
open_canada_collection	fgp
open_canada_date_published	2022-05-31 00:00:00
open_canada_keywords	{"fr": ["Information scientifique", "Animal", "Oiseau aquatique", "Migration animale", "Nature et biodiversité", "National (CA)", "Évaluer l'état des espèces", "Élaborer des plans de rétablissement; de gestion et de conservation des espèces", "Protéger le bien-être des espèces", "Approfondir les connaissances scientifiques et formuler de nouvelles méthodes pour gérer; protéger et rétablir les espèces", "Espèce", "Service canadien de la faune", "1.1.3 Oiseaux migrateurs", "Non Classifié"], "en": ["Scientific information", "Animals", "Aquatic birds", "Animal migrations", "Nature and Biodiversity", "National (CA)", "Assess Status of Species", "Develop Species Recovery / Management / Conservation Plans", "Protect Species Well-Being", "Expand Scientific Knowledge / Develop New Methodologies for Assessing Site Conditions", "Species", "Canadian Wildlife Service", "1.1.3. Migratory Birds", "Unclassified"]}
open_canada_subject	["nature_and_environment", "science_and_technology"]
sensitivity_level	unrestricted
title_fr	Atlas des oiseaux en mer dans l'est du Canada 2006 - 2020
update_frequency	as_needed