Swimming velocities in otariids

摘要: Velocities during surface swimming and diving were measured with microprocessor recorders in four otariid species: northern fur seals (Callorhinus ursinus), Galapagos sea lions (Zalophus californianus wollebaeki), (Arctocephalus galapagoensis), Hooker's (Phocarctos hookeri). Mean velocities ranged from 0.6 to 1.9 m/s. Transit distances feeding sites (1.2–90 km) calculated using these velocities. Dive velocities, recorded every 15 s, 0.9 These consistent minimal cost of transport the smaller species. Using time partitioning, metabolic a seal foraging trip is estimated on basis their energy costs. This value within 6% that previously made doubly labeled water techniques.