Arctic Environments/Inland Waters Ecozones
The inland waters of Canada's Arctic have been divided into three ecozones whose boundaries reflect the major watersheds of northern Canada. Water bodies within the Arctic Archipelago Ecozone region originate on the Arctic Islands and discharge into the Arctic Ocean. By contrast, waters in the Hudson Bay Ecozone originate in central Canada and flow into Hudson and Ungava Bays. The third ecozone, the Yukon-Mackenzie, includes waters that flow through the western mainland and discharge into the Beaufort Sea.