Little is known about the movement, feeding and breeding patterns of blue whales. Satellite tagging could reveal valuable practical information to assist in their conservation. A systematic aerial survey of blue whales is being conducted off the coast of Portland, Vic, to increase scientists' chances of finding and tagging blue whales from boats. Successful satellite tagging would help them to track the whale's migration. Australian population may be the vanguard of a Southern Hemisphere recovery from whaling, and may have links to populations in Indonesia.