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David Brown, R. McIntyre, C. Quadri, R. Schroeder (1960)
Health problems of captive dolphins and seals.Javma-journal of The American Veterinary Medical Association, 137
ON 2nd May 1961, Marineland collectors, operating with permits granted by the Alaska Department of Fish and Game, flew north on a chartered c-47 aircraft to collect four Pacific walrus calves Odobenus rosrnarus divergens. The party, consisting of Chief Collector Captain Frdnk Brocato, his assistant, Frank Calandrino, and the author, landed three days later at Gambell, an Eskimo village on the northwesterly tip of St Lawrence Island, situated 200 miles wert south-west of Nome, at the southerly approach of Bering Straits. Every year in April and May, the Pacific walruses leave the breeding grounds in the Gulf of Anadyr and migrate north, drifting on the disintegrating ice-pack, up the thirty-eight-mile-wide seaway which separates the Siberian mainland from St Lawrence Island, passing finally through Bering Straits into the Chukchi Sea and Arctic Ocean. Natives of St Lawrence take advantage of this seasonal movement and hunt the walrus in their umiaks. These sturdy little craft, made of walrus skin, are particularly well suited for the hazardous and difficult manoeuvres through the floating ice. The bull walruses are the first to appear, and are followed several weeks later by the cows, many of which are accompanied by newly born young. Both
International Zoo Yearbook – Wiley
Published: Jan 1, 1963
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