HEAT CONSERVATION IN TUNA FISH MUSCLE
HEAT CONSERVATION IN TUNA FISH MUSCLE
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DOI：
10.1073/pnas.56.5.1464
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发表时间：
1966-01-01
影响因子：
11.1
通讯作者：
TEAL, JM
中科院分区：
文献类型：
--
作者：
CAREY, FG;TEAL, JM
金枪鱼保持它们的体温高于环境水温。血液和水在鱼鳃中的逆流确保血液达到水温，并且在大多数鱼中代谢热因此消散。在金枪鱼中，位于肌肉血管系统中的高度发达的逆流热交换系统提供了一个热屏障，防止热量被血液带走并通过鳃损失。热交换系统还降低了主体表面和水之间的热梯度，并通过表面冷却减少了热损失。
Tuna fish maintain their body temperature above ambient water temperature. The countercurrent flow of blood and water in the gills of fishes ensures that the blood comes to water temperature, and in most fish metabolic heat is thus dissipated. In tuna a highly developed countercurrent heat exchange system located in the vascular system of the muscle provides a thermal barrier which prevents heat from being carried off by the blood and lost through the gills. The heat exchange system also lowers the thermal gradient between the surface of the body and the water and reduces heat loss through surface cooling.