Franz Josef Land and snow bunting. Some ivory gulls, little auks and Brünnich's guillemots opt to spend the winter on the islands. The polar bear population of Franz Josef Land lies within the Barents Sea subpopulation, which also includes polar bears inhabiting Svalbard and the western coast of Novaya Zemlya. In 2004, the Barents Sea subpopulation was estimated at 2,650. There is also a population of Arctic fox, which typically have their territories near seabird habitats. Being declared as a marine mammal sanctuary, the island has rich biodiversity of rare marine mammals. Three species of seals habit the archipelago. Harp seal is the
Novaya Zemlya due south. Anticipating the breakout, the German Task Force commander Rear Admiral Hubert Schmundt (Fig. 40) pre-positioned several U-boats near the strait’s western entrance. Six of the seventeen Allied ships exiting the strait were subsequently sunk. The badly-damaged American freighter "Alcoa Ranger" was beached on Novaya Zemlya’s west coast. Its crew found temporary shelter and were eventually rescued by a Russian vessel which took them to Belushya Bay. The Germans also damaged the Soviet tankers "Donbass" and "Azerbaijan," both of which reached the sanctuary of Archangel. Of the thirty-four merchant ships in PQ-17, twenty-four were destroyed. The American contingent alone