図1-1 The 1990-91 satellite-monitored radiotag.
図1-2 A composite of all satellite-acquired locations for 9 right whales tagged in the Bay of Fundy from 1989 to 1991.
(出典:B.R.Mate, S.L.Nieukirk, S.D.Kraus, 1997, Satellite-monitored movement of the Nothern Right Whale., J.Wildl.manage. 61(4), 1393-1405.)
