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首页> 外文会议>2010 IEEE OCEANS >Long-term real-time monitoring of free-ranging Bottlenose dolphins (Tursiops truncatus) in an aquarium using 5-hydrophone array system
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Long-term real-time monitoring of free-ranging Bottlenose dolphins (Tursiops truncatus) in an aquarium using 5-hydrophone array system

机译：使用5水听器阵列系统对水族箱中自由放养的宽吻海豚（Tursiops truncatus）进行长期实时监控

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Long-term real-time monitoring of free-ranging Bottlenose dolphins (Tursiops truncatus) in the pool of the aquarium “Izu Mito Sea paradise”, i.e. in the enclosed observatory has been started from 22nd June 2008, and continuously conducted ever since then. The monitoring system consists of 1) a modified 5-hydrophone array system deployed in the pool, 2) a web camera placed overland for visual monitoring of the dolphins, and 3) the land base system to process and transmit the acoustic data from the hydrophones of the array and the video images from the web camera to the servers in real-time via internet. The echo-location characteristics of the Bottlenose dolphins in the pool and their behavioral changes in a long-term span have been initially observed and analyzed. Three echolocation phases (search, approach, terminal) have been observed. It is estimated that the dolphins are echo-locating the surrounding environment and targeting something else such as the array as a target. Solo burst-pulses emitted by one of two dolphins swimming side by side in the pool were also observed. For understanding the Bottlenose dolphins'' behavioral changes during the long-term monitoring, the trend of the number of clicks recorded around the pool is applied for the analysis as an index of the dolphin''s activities. The results show the trend and difference of the changes of the click number in each section of the pool depending on the time of day. Not only depending on the time, but also depending on natural phenomena, the dolphins'' behavioral changes were observed. A definite trend of click number reduction is observed during the occurrence of an earthquake, even when they stayed underwater. Significant behavioral changes of the dolphins are also observed just after the earthquake. This indicates that the Bottlenose dolphins in the pool of the “Izu Mito Sea Paradise” did not actually “predict” the earthquake.
机译：自2008年6月22日起，开始对封闭的天文台“伊豆水户海洋天堂”水族馆（即封闭的天文台）中的宽吻宽吻海豚（Tursiops truncatus）进行长期实时监控，此后一直持续进行。监视系统包括：1）部署在水池中的改良型5水听器阵列系统; 2）放置在陆地上的网络摄像头，用于对海豚进行视觉监视; 3）陆基系统，用于处理和传输水听器的声学数据通过互联网实时地将阵列和视频图像从网络摄像机传输到服务器。最初已经观察到并分析了池中宽吻海豚的回声定位特性及其行为变化。已经观察到三个回声定位阶段（搜索，进近，结束）。据估计，海豚正在回声定位周围的环境，并以其他物体（例如阵列）为目标。还观察到了两只海豚在游泳池中并排游泳时发出的独有爆发脉冲。为了了解长期监测期间宽吻海豚的行为变化，将池周围记录的点击次数趋势用于分析作为海豚活动的指标。结果显示了池中每个部分中的点击数变化的趋势和差异，具体取决于一天中的时间。不仅取决于时间，而且取决于自然现象，还观察到了海豚的行为变化。在地震发生期间，即使当它们停留在水下时，也可以观察到一定的点击数减少趋势。地震发生后，海豚的行为也发生了显着变化。这表明“伊豆美图海洋天堂”游泳池中的宽吻海豚实际上并没有“预测”地震。

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