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

Abstract:

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.