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首页> 外文期刊>Marine ecology progress series >Cold-blooded divers: temperature-dependent dive performance in the wild hawksbill turtle Eretmochelys imbricata
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Cold-blooded divers: temperature-dependent dive performance in the wild hawksbill turtle Eretmochelys imbricata

机译：冷血的潜水员：野Eretmochelys imbricata中取决于温度的潜水表现

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摘要

Sea turtles are diving ectotherms that are influenced by the temperature of the ambient water, although swimming activity can temper this influence via increased body temperatures enhanced by the thermal inertia of these large animals. We successfully equipped 3 nesting hawks-bill turtles Eretmochelys imbricata with time-depth recorders (TDRs) to monitor water temperature and dive depth over the duration of the re-migration interval between 2 successive nesting seasons. Data sets for up to 22 mo were obtained, showing fluctuations in water temperature over the seasons. Nocturnal dive behaviour of the turtles at their foraging grounds revealed an increase in dive duration with decreasing water temperatures in winter. A model is provided to estimate dive duration for the range of temperatures experienced by this species in the wild. The data on vertical velocity during ascent and descent phases as a parameter for activity failed to show thermal dependence. It is concluded that changes in water temperature have an effect on the behavioural ecology of hawksbill turtles.
机译：海龟是受外界水温影响的潜水等温线，尽管游泳活动可以通过这些大型动物的热惯性所增加的体温升高来缓解这种影响。我们成功地为3头鹰嘴海龟Eretmochelys imbricata配备了时间深度记录器（TDR），以在两个连续的筑巢季节之间的重新迁移间隔期间监控水温和潜水深度。获得了长达22 mo的数据集，显示了各个季节的水温波动。乌龟在觅食地的夜间潜水行为表明，随着冬季水温的降低，潜水时间会增加。提供了一个模型来估计该物种在野外经历的温度范围的潜水持续时间。上升和下降阶段的垂直速度数据作为活动参数未能显示出热依赖性。结论是水温的变化对的行为生态有影响。

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