Habitat and Ecology
Little is known about habitat use by eastern North Pacific right whales. The rarity of coastal records in winter in either historical or recent times suggests that their breeding grounds may have been offshore (Clapham et al. 2004). This is in contrast to southern and North Atlantic right whales, both of which form inshore breeding concentrations. There is clearly some northward migration in summer and southward in winter (Clapham et al. 2004), but the location of the wintering grounds is unknown. The historical catches show that in summer the population occurred mainly on feeding grounds in the Bering Sea and
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