Ontogenetic changes in behaviour transmission among individuals in the schooling of Pacific bluefin tuna Thunnus orientalis
Ontogenetic changes in behaviour transmission among individuals in the schooling of Pacific bluefin tuna Thunnus orientalis
复制标题
太平洋蓝鳍金枪鱼东方鲔鱼群体行为传递的个体发生变化
DOI：
10.1051/alr/2011136
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发表时间：
2011
影响因子：
1.1
通讯作者：
T. TAKAGI
中科院分区：
文献类型：
--
作者：
H. FUKUDA;Y. SAWADA;T. TAKAGI
为了揭示东方金枪鱼（Thunnus orientalis）群体化发育的运动学特征，研究了东方金枪鱼从仔鱼到幼鱼的群体化行为特征、群体成员间的局部行为传递和形态特征的变化。第一次观察到集群是在孵化后24天左右（体长27 mm）。东方个体之间的行为传输需要更长的时间在24天孵化后的个人比老鱼。随着行为传播所需时间的减少，学校的紧凑性和极性逐渐改善。行为传递所需时间减少的一个原因是机动性的发展，这是尾鳍和其他与游泳有关的器官的进一步形态发展的结果。
To reveal the kinematical aspects of schooling development in the Pacific bluefin tuna Thunnus orientalis, changes in its schooling behaviour traits, local behaviour transmission among school members and morphological traits were investigated as fish developed from the larval to the juvenile stage. Schooling was first observed at around 24 days post-hatching (27 mm body length) in T. orientalis. Behaviour transmission among individuals took much longer among 24 d post-hatching individuals than among older fish. The compactness and polarity of the school progressively improved as the time required for behaviour transmission decreased. One cause of the reduction in the time required for behaviour transmission was the development of manoeuvrability, which resulted from further morphological development of the caudal fin and other organs related to swimming.