圈养宽吻海豚自由游动状态和训练期间通讯信号比较研究

发布时间：2018-09-09 16:10

【摘要】：根据频率特性对圈养宽吻海豚(Tursiops truncatus)在自由游动和训练两种实验条件下的声通讯信号进行分类,并利用双尾t检验统计分析方法对两种条件下的信号声谱参数进行统计比较。结果显示,宽吻海豚在自由状态下通讯信号的种类多并以正弦型为主,而训练期间的通讯信号则大多数为上扫频类。此外,统计分析表明起始频率不能反映这两种状态的不同(p=0.22)。结束频率、最小频率、最大频率、频率变化量、拐点数、环形数、阶数、波形数和周期等则显示了两种状态显著的差异性(p0.05)。结果为今后海豚声行为研究提供一定的科学参考和基础。
[Abstract]:According to the frequency characteristics, the acoustic communication signals of captive dolphin (Tursiops truncatus) under two experimental conditions of free walk and training were classified, and the acoustic spectrum parameters of the two conditions were statistically compared by using the double tail t test statistical analysis method. The results show that there are many kinds of communication signals in the free state and the sinusoidal type is the main type, while the communication signals during the training period are mostly the up-sweep type. In addition, the statistical analysis shows that the initial frequency does not reflect the difference between the two states (p0. 22). The end frequency, the minimum frequency, the maximum frequency, the frequency variation, the inflection point number, the ring number, the order, the waveform number and the period show the significant difference between the two states (p0.05). Results the results provide a scientific reference and basis for the future study of dolphin sound behavior.
【作者单位】：厦门大学水声通信与海洋信息技术教育部重点实验室;
【基金】：国家自然科学基金(41276040,11174240) 海洋公益性行业科研专项(201105011-3) 福建省自然科学基金(2012J06010,2060203)资助
【分类号】：TN911.7

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