Cetacean Energetics, an Overview of Intraspecific Size Variation

摘要: Standard metabolism is estimated for the fin whale, Ba/aenloptera physalus, from energy yield of lipid stores consumed while in regions limited prey availability. The metabolic rate appears better described by a surface rather than volumetric rule. larger body size some Antarctic Balaenoptera compared with those Northern Hemi- sphere attributed to selection proportions that reduce specific and establish an optimal area deposition cache. Such allow short-term forays into areas where extremely dense but restricted seasonal avail- ability, permit extended use during exclusion warmer less productive waters. Thus, adult within species inversely correlated length feeding season directly availability period. As differences diversity and/or their year-round become marked between hemispheres, so do body-size lesser rorquals. This also applied odontocetes. Thermal homeostasis considered be equally dependent upon morphology behavior. Minimal densities necessary maintenance rorquals could certain known parameters.