Lateral-line-like antennae of certain of the Penaeidea (Crustacea, Decapoda, Natantia)
Lateral-line-like antennae of certain of the Penaeidea (Crustacea, Decapoda, Natantia)
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某些对虾纲（甲壳纲、十足目、纳坦亚纲）的侧线状触角
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
J. Gray
中科院分区：
文献类型：
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作者：
E. Denton;J. Gray
一些远洋十足类甲壳动物有长长的触角“鞭毛”，其末端有大量刚毛。在这些远端部分，一些刚毛形成已知含有机械感受器的管，因此类似于许多常见鱼类的侧线。我们已经研究了一些机械性能的这些专门鞭毛的家庭Sergestidae和Penaeidae的动物。鞭毛的近端和远端部分在与其长度成直角时都是柔性的，但在纵向上表现得像刚体。这意味着，当动物暴露于周围海水中的振动时，远端部分在大于约1Hz的所有频率下表现得好像它们在垂直于近端部分的轴线的平面中机械地独立于动物的身体。的方式，其中的比例的位移的机械感受器在鞭毛的远端部分和海水的位移外的鞭毛的变化与frequency.This类似，发现一些鱼侧线。从这些结果来看，这些甲壳类动物似乎有两条“侧线”，与动物的身体间隔很远，并且在机械上独立于身体。对于这样的系统，鞭毛的机械感受器的激发模式将随着外部振动源的位置的变化而以比鱼侧线的情况更戏剧性的方式变化。我们已经计算了几个简单的空间配置的振动源和这种甲壳类动物的图案的变化。
Some pelagic decapod crustaceans have long trailing antennal ‘flagella’, the distal parts of which are heavily setosed. In these distal parts some setae form tubes known to contain mechanoreceptors and so resemble the lateral lines of many common fishes. We have studied some of the mechanical properties of these specialized flagella from animals of the families Sergestidae and Penaeidae. Both proximal and distal parts of the flagella are flexible at right angles to their lengths but behave like rigid bodies longitudinally. This means that when the animal is exposed to vibrations in the surrounding sea water the distal parts behave, at all frequencies greater than about 1 Hz, as if they are, in the planes perpendicular to the axes of the proximal parts, mechanically independent of the animal’s body. The way in which the ratio of the displacements of the mechanoreceptors in the distal parts of the flagellum and the displacements of the sea water outside the flagellum changes with frequency was found. This resembles that found for some fish lateral lines. From these results it seems that these crustaceans have two ‘lateral lines’ widely spaced from the animal’s body and mechanically independent of the body. For such a system the patterns of excitation of the mechanoreceptors of the flagella will change in an even more dramatic way with change in position of an external source of vibration than will be the case for fish lateral lines. We have calculated such changes in pattern for a few simple spatial dispositions of a vibrating source and a crustacean of this kind.