A new conceptual framework for the musculoskeletal biomechanics and physiology of ray-finned fishes.
A new conceptual framework for the musculoskeletal biomechanics and physiology of ray-finned fishes.
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DOI：
10.1242/jeb.243376
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发表时间：
2022-03-08
期刊：
影响因子：
--
通讯作者：
Brainerd EL
中科院分区：
文献类型：
--
作者：
Camp AL;Brainerd EL
吸食鳍鱼需要相当大的肌肉力量才能快速有力地捕获猎物。长期以来，位于头部后方的轴向肌肉系统为吸力喂养提供了一定的动力，但最近的XROMM和荧光显微镜研究发现，几乎所有的轴向肌肉系统(超过80%)都有效地提供了高性能吸力喂养的全部动力(90%-99%)。轴向力的优势为鱼类肌肉骨骼生物力学的研究提供了一个新的框架：应分析轴向肌肉和骨骼的形式和功能，以便在摄食过程中产生动力(或至少作为游泳和摄食之间的折衷)，并分析颅肌和骨骼在传递轴向力和协调口腔扩张方面的作用。这个新的框架已经产生了新的见解，正如现在测量的四个物种的吸力所表明的那样。物种间的比较表明，高吸力可以通过不同的方式实现：增加吸力的大小或口腔体积的变化率，或两者兼而有之(正如在这些物种中观察到的最强大的物种)。我们的框架表明，头部和身体之间的机械和进化相互作用，以及轴向结构的游泳和摄食作用之间的相互作用，可能是值得继续研究的富有成效的领域。摘要：最近一些鱼类利用全身进行高性能吸食的发现，促使人们对鳍鱼的颅骨和轴向生物力学以及整体体型进行重新评估。
Suction feeding in ray-finned fishes requires substantial muscle power for fast and forceful prey capture. The axial musculature located immediately behind the head has been long known to contribute some power for suction feeding, but recent XROMM and fluoromicrometry studies found nearly all the axial musculature (over 80%) provides effectively all (90–99%) of the power for high-performance suction feeding. The dominance of axial power suggests a new framework for studying the musculoskeletal biomechanics of fishes: the form and function of axial muscles and bones should be analysed for power production in feeding (or at least as a compromise between swimming and feeding), and cranial muscles and bones should be analysed for their role in transmitting axial power and coordinating buccal expansion. This new framework is already yielding novel insights, as demonstrated in four species for which suction power has now been measured. Interspecific comparisons suggest high suction power can be achieved in different ways: increasing the magnitude of suction pressure or the rate of buccal volume change, or both (as observed in the most powerful of these species). Our framework suggests that mechanical and evolutionary interactions between the head and the body, and between the swimming and feeding roles of axial structures, may be fruitful areas for continued study. Summary: The recent discovery that some fish use their whole bodies for high-performance suction feeding prompts a reappraisal of cranial and axial biomechanics and overall body shape in ray-finned fishes.