暗纹东方鲀应激胀气行为功能形态学观察.PDF

动 物 学 研 究 2010，Oct. 31(5)：539−549 CN 53-1040/Q ISSN 0254-5853 Zoological Research DOI ：10.3724/SP.J.1141.2010.05539 暗纹东方鲀应激胀气行为功能形态学观察 * 赵 爽，宋佳坤 ，王晓杰 (上海海洋大学 海洋生物系统和神经科学研究所，上海 201306) 摘要：该文以四齿鲀科(Tetraodontidae)的暗纹东方鲀(Takifugu obscurus)为对象，采用形态学解剖、X 光透视 和骨骼神经染色等方法，对其胀气行为的功能形态学进行研究。其结果发现，暗纹东方鲀腹部受到刺激后，口腔 小幅高频将水或空气吞咽进入由食道腹壁特化成的气囊里，气囊与消化道的前后结合处由括约肌控制，腹壁肌呈 束状，与此同时，高弹性的皮肤、脊柱和神经都会发生相应的位移变化，以保证胀气行为的快速完成。通过对暗 纹东方鲀胀气行为及其吸、排水机制的深入了解，为进一步研究胀气行为的神经机理奠定基础，也将会丰富动物 警戒逃避行为的理论。 关键词：暗纹东方鲀；胀气行为；气囊；功能形态学 中图分类号：Q959.489 ；Q959.489.04 ；Q954.2 文献标志码：A 文章编号：0254-5853-(2010)05-0539-011 Functional morphology of puffing behavior in pufferfish (Takifugu obscurus) * ZHAO Shuang, SONG Jia-Kun , WANG Xiao-Jie (Institute for Marine Biosystem and Neuroscience, Shanghai Ocean University , Shanghai 201306 ，China） Abstract: As a defensive behavior of escaping from the predators, sudden inflating (“puffing”) has been found in all members of the pufferfish sister taxa Diodontidae and Tetraodontidae. However, the mechanism of inflation is largely unknown. To further understand the inflation behavior of Tetraodontidae, morphological dissection, X-ray and staining methods were conducted to investigate morphological variations and functional adaptation during the inflation in Takifugu obscurus. The results indicated that after receiving stimulation, Takifugu obscurus quickly and frequently swallows water