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Seasonal distribution data for the St. Lawrence Estuary beluga whale population (Delphinapterus leucas). Summer distribution is based on surveys from late August to early September, while fall and winter distributions are derived from aerial surveys conducted from October to March 1989-1990. Spring distribution is based on anecdotal reports and two aerial surveys from April and June 1990.
This layer represents general seasonal distribution, not critical habitat. A separate data layer exists for beluga whale critical habitat in the Saguenay River and St. Lawrence Estuary. Available in ESRI REST, SHP, and CSV formats.