... is difficult to measure at fine temporal scales in wild animals. We used depth and acceleration data from eight lactating California sea lions ( Zalophus californianus ) to model body density and investigate the effect of dive depth and tissue density on rates of energy expenditure. We calculated body density...

...Kagari Aoki; Yuuki Y. Watanabe; Daniel E. Crocker; Patrick W. Robinson; Martin Biuw; Daniel P. Costa; Nobuyuki Miyazaki; Mike A. Fedak; Patrick J. O. Miller SUMMARY Many diving animals undergo substantial changes in their body density that are the result of changes in lipid content over...

... the leatherback turtle occupies among marine reptiles. * Author for correspondence ( [email protected] ) 3 9 2010 © 2010. 2010 gas solubility endotherm accelerometer Boyle's law cost of swimming body density Air-breathing marine vertebrates face a number of physical...

... a set of observations on the same individual with different body densities. These four data sets revealed the general diving patterns of Baikal seals and also provided direct insights into the influence of buoyancy on these patterns. Seals repeatedly performed dives of a mean duration of 7.0 min(max...