Standard metabolic rate at the surface and during trained submersions in adult California sea lions (Zalophus californianus)

JA Hurley, DP Costa - Journal of Experimental Biology, 2001 - journals.biologists.com
The metabolic rate (MR) of four adult California sea lions (Zalophus californianus), two
males and two females, was quantified during trained submersion and stationing behavior in
laboratory tanks. MR was measured, at rest and for single submersions of increasing
duration (1–7 min), by measuring oxygen consumption using open-circuit, indirect
calorimetry. Standard MR was measured under conditions defined for basal MR and was
found to be 1.9 to 3 times that predicted for terrestrial animals of similar size. Submersion …
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