The bowhead whale (Balaena mysticetus) is a large baleen whale living in Arctic waters. Two populations are found in Canada: the Bering-Chukchi-Beaufort Sea population and the Eastern Canada-West Greenland population. During the summer, the Bering-Chukchi-Beaufort Sea population is found in the waters of the Yukon and the Northwest Territories, while the Eastern Canada-West Greenland population is found in Davis Strait, Baffin Bay, Lancaster Sound, Hudson Strait, Foxe Basin, northwest Hudson Bay and the channels and fjords of the Arctic Archipelago. Commercial whaling began in the 1500s and ended around 1915. Both populations of bowhead whale were severely reduced by this industry. While their numbers have increased, other challenges, such as climate change and oil and gas development, pose threats to bowhead whales.