Retinal ganglion cell topography in juvenile Pacific bluefin tuna Thunnus orientalis (Temminck and Schlegel).
Retinal ganglion cell topography in juvenile Pacific bluefin tuna Thunnus orientalis (Temminck and Schlegel).
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太平洋蓝鳍金枪鱼 Thunnus orientalis 幼鱼的视网膜神经节细胞地形图（Temminck 和 Schlegel）。
DOI：
10.1007/s10695-013-9820-8
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发表时间：
2014
影响因子：
2.9
通讯作者：
Miyazaki T.
中科院分区：
文献类型：
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作者：
鈴木仁;乃美大祐;神戸嘉一;安田俊平;中田勝士;鈴木仁;鈴木仁・乃美大祐・神戸嘉一・安田俊平・中田勝士;鈴木仁;児玉紗也香・布目三夫・森脇和郎・鈴木仁;桑山崇・布目三夫・森脇和郎・鈴木仁;高梨脩;笹森翔一;木下豪太;鈴木祐太郎;鈴木仁;鈴木仁;Miyazaki T.;Miyazaki T.
研究人员对太平洋蓝鳍金枪鱼东方金枪鱼幼鱼的视网膜神经节细胞分布进行了研究，该分布可反映鱼类的摄食行为。在检查过程中，发现了规则排列的细胞，具有独特的较大体细胞，可以被视为运动敏感细胞。普通大小的神经节细胞的地形分布通常用于估计鱼的视轴和/或视野特征，表明密度最高的区域（称为中央区域）位于腹侧颞叶视网膜。普通大小的神经节细胞的视网膜地形似乎反映了蓝鳍金枪鱼的觅食行为；巡航时，集中区域的细胞可能会发出潜在猎物的信号，例如存在于向上方向的小型中上层鱼类或鱿鱼。从形态特征来看，位于视网膜小颞区的大神经节细胞似乎相当于猫的生理分类的偏心Y细胞，它们受到明亮视野中短暂黑点的刺激。据推测，颞部视网膜中的大的偏心细胞将逃离蓝鳍金枪鱼的敏捷猎物的运动检测为环境光下的剪影。
The retinal ganglion cell distribution, which is known to reflect fish feeding behavior, was investigated in juvenile Pacific bluefin tunaThunnus orientalis. During the course of examination, regularly arrayed cells with a distinctive larger soma, which may be regarded as motion-sensitive cells, were found. The topographical distribution of ordinary-sized ganglion cells, which is usually utilized to estimate fish visual axis and/or visual field characteristics, showed that the highest-density area, termed thearea centralis, was localized in the ventral-temporal retina. The retinal topography of ordinary-sized ganglion cells seems to reflect the bluefin tuna’s foraging behavior; while cruising, cells in thearea centralismay signal potential prey, such as small schooling pelagic fishes or squids, that are present in the upward-forward direction. Judging from morphological characteristics, the large ganglion cells localized in the small temporal retinal area seem to be equivalent to physiologically categorized off-center Y-cells of cat, which are stimulated by a transient dark spot in a bright visual field. It was inferred that presumed large off-center cells in the temporal retina detect movements of agile prey animals escaping from bluefin tuna as a silhouette against environmental light.