Wanderlust World Wanderlust World Canada's vast coastline—the world's longest—borders three oceans. The marginal seas (subdivisions of these oceans) define its regional marine geography.
Labrador Sea: Between Greenland and Labrador; deep convection zone critical for global thermohaline circulation. Gulf of St. Lawrence: Semi-enclosed estuary of the St. Lawrence River; rich fisheries, seasonal ice. Scotian Shelf: Broad continental shelf off Nova Scotia; productive banks (Sable, Banquereau), oil/gas fields.
Gulf of Alaska: Large embayment; intense storms, productive fisheries, glacial runoff. Puget Sound: Complex fjord system (shared with US); major ports (Seattle, Vancouver), orca habitat. Strait of Juan de Fuca: Salish Sea entrance; international boundary, shipping lane, tidal energy potential.
Beaufort Sea, Amundsen Gulf, Baffin Bay, Hudson Bay, Foxe Basin—defining Canada's Arctic coastline and Inuit Nunangat.
These are Canada's exclusive economic zones (EEZs)—jurisdiction over resources, conservation, shipping. Their distinct oceanography (currents, ice, productivity) demands region-specific management. Climate change impacts (warming, acidification, ice loss) are acute here, affecting ecosystems and coastal communities.