基于小型声学标记的花尾胡椒鲷行为研究

Studies of behaviours of Plectorhinchus cinctu( Temminck et Schlegel) using acoustic tags

2014年11月在实验池(70 m×70 m×4 m)内,利用小型超声波标志跟踪技术对花尾胡椒鲷(Plectorhinchus cinctu)进行持续5 d的跟踪研究,对其昼夜活动轨迹与行为规律进行分析。结果表明,垂直方向上,花尾胡椒鲷在放养前期主要分布于中间水层,深度变化幅度较大,约有2 m,后期集中在中上层游动且深度变化较小;水平方向具有以实验池中部为基准向四周分散游动的规律;从三维空间分布来看,花尾胡椒鲷更适应于活动在实验池中部小范围水域;其夜间游泳速度较白天游速大且波动明显。通过对花尾胡椒鲷的超声波标志跟踪研究,旨在为其增殖放流养护提供技术支撑。

We tracked and analyzed the diurnal movement and behaviours of Plectorhinchus cinctu（ Temminck et Schlegel） using acoustic tags based on continuous observation by five days in the experimental pool（ 70 m× 70 m × 4 m） in November 2014. The results showed that in the vertical direction,P. cinctu mainly moved in middle water layer with a large depth range（ about 2 m） in earlier stage and in pelagic layer with a small depth range in later stage mainly; in the horizontal direction,P. cinctu tended to move around taking the middle part of pool as centrality; in three-dimensional space,P. cinctu were apt to swim in a relatively small scope around the middle of pool. Furthermore,the movement speed at night was greater than that during day and varied obviously. The objective of this research was to provide basic data for conservation and management of the species enhancement by studying behaviour of P. cinctu with acoustic tags methods.