Thermoregulatory Capabilities of the Leatherback Turtle, Dermochelys Coriacea

棱皮龟 (Dermochelys Coriacea) 的体温调节能力

基本信息

批准号：
9019780
负责人：
James Spotila
金额：
$ 10.5万
依托单位：
Drexel University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1991
资助国家：
美国
起止时间：
1991-02-15 至 1993-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9019780&HistoricalAwards=false
关键词：
Thermoregulatory Capabilities Leatherback Turtle Dermochelys

项目摘要

The objective of this research is to determine the cellular, physiological, and biophysical basis for gigantothermy in the leatherback sea turtle. The following hypotheses will be tested: 1. The tissue metabolic rate of leatherback muscle is elevated above that of green turtles and intermediate between that of green turtles and mammals. 2. Aerobic metabolism is the primary source of energy for activity of nesting, and other exercise. 3. Leatherbacks maintain constant elevated body temperatures while active and at rest in both warm (tropical) and cold (north temperate) waters. 4. Blood flow to the skin and periphery is increased when on land, and while exercising in warm (tropical) waters, and reduced when in cold (north temperate) water. These hypotheses will be tested by completing the following experiments: 1. Measure the tissue metabolic rate of the pectoral muscles of leatherbacks and green turtles at temperatures from 5 to 35oC using a Gilson respirometer. 2. Measure the aerobic and anaerobic metabolic rates of adult leatherbacks while they are resting and active on land in the tropics and north temperate region. 3. Use multichannel sonic transmitters to measure the body temperature of resting and active turtles in warm and cold waters. 4. Measure skin blood flow using the 133xenon washout technique. Finally these data will be used to test a mathematical model that predicts the effects of body size and metabolic rate on heat transfer and body temperatures of leatherbacks on land and in the water.//

这项研究的目的是确定棱皮海龟中巨大的植物的细胞，生理和生物物理基础。将测试以下假设：1。棱皮肌的组织代谢速率高于绿海龟的上方，并在绿海龟和哺乳动物之间中间介于中间。 2。有氧代谢是筑巢活动和其他运动活性的主要能量来源。 3。棱皮术保持恒定的体温升高，同时在温暖（热带）和寒冷（北温带）水中保持活跃和休息。 4。在陆地上，在温暖（热带）水中锻炼时，血液流向皮肤和外围的血液会增加，并在寒冷（北温带）水中减少。这些假设将通过完成以下实验来检验：1。在温度从5到35oC下，使用吉尔森呼吸器测量棱皮背和绿海龟的胸肌的组织代谢速率。 2。测量成人棱皮棱皮的有氧和厌氧代谢率，它们在热带和北温带地区的土地上休息和活跃。 3。使用多通道声音发射器来测量温暖和冷水中静息和活性海龟的体温。 4。使用133xenon洗涤技术测量皮肤血流。最后，这些数据将用于测试一种数学模型，该模型可以预测体大小和代谢速率对横减药品和水中棱皮的体温的影响。////////