... Leptonychotes weddellii dive oxygen consumption locomotor cost plasma lactate stroke frequency foraging energetics Foraging by large predators comprises complex, potentially energetically demanding behaviors, depending on the type of prey involved( Stephens and Krebs, 1986 ). Activities...

.... Worthy and M. A. Castellini ), pp. 43 – 66 . Lawrence : Allen Press . Costa , D. P. ( 1991a ). Reproductive and foraging energetics of high latitude penguins, albatrosses and pinnipeds – implications for life history patterns . Am. Zool . 31 , 111 – 130 . 10.1093/icb/31.1.111...