Heart rate as a proxy for estimating oxygen consumption rates in loggerhead turtles (Caretta caretta).

ABSTRACT: Heart rates of air-breathing diving animals can change on a short time scale due to the diving response during submergence. Heart rate is used frequently as a proxy for indirectly estimating metabolic rates on a fine time scale. However, most studies to date have been conducted on endothermic diving animals, and the relationships between metabolic rates and heart rates in ectothermic diving animals have not been well studied. Sea turtles are unique model organisms of diving ectotherms because they spend most of their life in the ocean and perform deep and/or long dives. In this study, we examined the relationship between heart rates and metabolic rates in captive loggerhead turtles, Caretta caretta, to estimate oxygen consumption rates during each dive based on heart rates. The oxygen cons

SUBMITTER: Kinoshita C 

PROVIDER: S-EPMC8988048 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature