Key points are not available for this paper at this time.
B. Wilson, P. M. Thompson, P. S. Hammond, Habitat Use by Bottlenose Dolphins: Seasonal Distribution and Stratified Movement Patterns in the Moray Firth, Scotland, Journal of Applied Ecology, Vol. 34, No. 6 (Dec., 1997), pp. 1365-1374
Wilson et al. (Mon,) studied this question.