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在尾巴鞭打普通鱼,Alopias vulpinus的脊椎形态

Jamie L Knaub¹, Michelle Passerotti², Lisa J Natanson²

¹Department of Biological Sciences, Florida Atlantic University, Boca Raton, FL, USA.

Royal Society open science

|January 5, 2024

概括

鱼使用它们独特的脊柱来进行强大的尾巴鞭打. 它们的脊椎在发育过程中适应大小和矿化,以支持这种狩猎行为.

科学领域:

海洋生物学海洋生物学
脊椎动物解剖学脊椎动物解剖学
生物力学生物力学

背景情况:

鱼 (Alopias spp.) 鱼 (Alopias spp.) 是一种鱼. 它们拥有长长的尾,用于鞭打尾巴以使猎物昏昏欲睡.
尾巴鞭打涉及极端的背中脊椎曲,与游泳运动不同.
之前对鱼脊椎的研究重点是游泳负荷,而不是尾巴鞭打机制.

研究的目的:

为了研究鱼的脊椎形态学和微观架构,以适应支持极端的背中曲的适应.
分析脊椎在不同身体区域和发育阶段 (ontogeny) 的变化.

主要方法:

微型计算机断层扫描 (micro-CT) 从胚胎,幼幼和成年鱼前后椎骨的扫描.
主要成分分析 (PCA) 评估脊椎形态.
里程碑式的分析,以检查脊椎内的矿物排列.

主要成果:

观察到脊椎形态和微观结构的显著变化,跨越身体区域和本体发生.
脊椎的大小和矿物质含量 (叶片,节点) 随着年龄的增长而增加,表明了发育适应.
前脊椎似乎增强了稳定性,而后脊椎则支着尾.

结论:

冲鱼的脊椎表现出专门的形态学和矿物化模式,适用于鞭打尾巴.
这些适应性表明脊椎结构的发育可塑性,以适应捕捉猎物的生物力学需求.

关键词:

中心的中心的中心.微型计算机断层扫描技术微观结构的微观结构矿物化软骨是一种矿物化软骨.

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