杨蕊, 于刚, 胡静, 周胜杰, 方伟, 马振华. 青干金枪鱼骨骼系统研究[J]. 南方水产科学, 2021, 17(2): 36-43. DOI: 10.12131/20200179
引用本文: 杨蕊, 于刚, 胡静, 周胜杰, 方伟, 马振华. 青干金枪鱼骨骼系统研究[J]. 南方水产科学, 2021, 17(2): 36-43. DOI: 10.12131/20200179
YANG Rui, YU Gang, HU Jing, ZHOU Shengjie, FANG Wei, MA Zhenhua. Research on skeleton system of Thunnus tonggol[J]. South China Fisheries Science, 2021, 17(2): 36-43. DOI: 10.12131/20200179
Citation: YANG Rui, YU Gang, HU Jing, ZHOU Shengjie, FANG Wei, MA Zhenhua. Research on skeleton system of Thunnus tonggol[J]. South China Fisheries Science, 2021, 17(2): 36-43. DOI: 10.12131/20200179

青干金枪鱼骨骼系统研究

Research on skeleton system of Thunnus tonggol

  • 摘要: 为揭示青干金枪鱼 (Thunnus tonggol) 骨骼形态特征,文章采用X-ray透视成像系统及骨骼标本制作法开展相关研究。结果显示,青干金枪鱼骨骼包括附肢骨骼和中轴骨骼两部分,其中附肢骨骼包括带骨和支鳍骨,中轴骨骼包括头骨、脊柱和尾骨。青干金枪鱼头部骨骼分为脑颅和咽颅两部分,脑颅主要包括嗅区、额眼区、蝶骨区和枕骨区,咽颅即包围在消化管前端的骨骼,包括颌弓、舌弓、鳃弓和鳃盖骨系。青干金枪鱼脊柱则由39枚脊椎骨前后衔接构成,其中第35至第38节椎体的髓棘和脉棘向后延伸变形成尾上骨和尾下骨,第39节椎体演变成尾杆骨。开展青干金枪鱼骨骼系统的研究不仅丰富了金枪鱼属鱼类的生物学基础,也为其分类及演化提供相关参考。

     

    Abstract: In order to reveal the bone morphology of Thunnus tonggol, we studied its skeletal system by X-ray fluoroscopy imaging and manufacturing technique of bone specimen. It is found that the skeleton of T. tonggol consists of appendicular skeleton and axial skeleton. Its appendicular skeleton includes belt bone and branched fin bone, and the axial skeleton consists of skull, spine and coccyx. The cranial skeleton of T. tonggol consists of neurocranium and splanchnocranium. The neurocranium is divided into ethmoidale, frontale, sphenoid and occipitale. The splanchnocranium is surrounded by the bones at the front of the digestive tube, and it includes arcus mandibularis, arcus hyoideus, arcus branchialis and opercular bones. The spine of T. tonggol is composed of 39 vertebraes, and the neural spine and haemal spine of the 35th–38th centrum deformed into epural and hypural. The 39th centrum evolved into the urostyle. The study on skeletal system of T. tonggol not only enriches the biological basis of the genus Tunas, but also provides references for its classification and evolution.

     

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