温度变化对鱼类行为影响的研究进展

大多数鱼类是生活在水中的变温动物,因此温度是影响鱼类生长发育重要的非生物因素。在温度发生变化时,鱼类不会进行适应性基因变异,而是会通过忍受、抵制或偏好等热调控行为来降低环境压力。通过总结近年来鱼类热调控行为的研究成果,比较不同种类、同种异龄、同种同龄鱼在温度变化中生境选择、游泳、摄食、生殖洄游等行为差异,分析造成该差异可能的内在机制,以及温度突变中热调控蛋白和表观遗传学对鱼类生存影响的研究进展,阐述鱼类的热调控行为是其根据外界条件和自身需求做出的一个复杂的综合性行为,其目的是获得最大化的热调控优势。为了更深入解读全球气候突变对鱼类生存的影响,需要对鱼类热调控行为及调控机理进行更进一步的研究。

The literature review of temperature change effect on fish behavior

Most of the fish are ectotherms which live in the water for the whole life, so temperature is the important abiotic factor which can influence the growth and development of fish. When temperature changing, fish won''t reduce the environment stress by using behavioral thermoregulation like endure, boycott or preference rather than adaptable genovariation. The review summarize the recent study on fish behavioral thermoregulation, comparing their behavioral change of habitat selection, swimming, feeding and breeding migration of different species, allogeneic age and the same kind and age fishes. And also analyze the possible internal mechanism which can course the difference, as well as the research progress of the Heat Shock Protein (HSPs) and epigenetics effect on survival. The article expound the behavior of thermoregulation is a complex and comprehensive selection behavior based on external environmental conditions and their physiological needs to maximize the advantage of thermoregulation. In order to further understand the effect of global climate change on fish, the further on research of fish thermoregulation behavior and its mechanism are needed.