摘要
对大黄鱼Pseudosciaena crocea觅食及产卵时的发声及信号特性进行了研究.结果表明：不同行为下大黄鱼发声信号的频谱特性一致,即约在800 Hz频率处有一个明显的谱峰;但不同行为下发声的时域信号差距较大,即觅食时大黄鱼的发声信号都是简单的单脉冲,脉冲间隔大多集中在1～30 ms,脉冲间隔比较小,而产卵时大黄鱼的发声信号则大部分是连续的双脉冲或三脉冲,只有极个别的单脉冲或多脉冲,脉冲间隔则集中在100～130 ms,脉冲间隔要大得多.
Large yellow croaker Pseudosciaena crocea, as a soniferous species, produce different types of sound during feeding and spawning. These sounds were analyzed and compared. Spectrum analyses showed that sound types have the same power spectrum and the peak frequencies at about 800 Hz. However, in oscillogram, there are significant differences for the two sounds. The feeding sounds consist of simple single pulses and pulse - intervals are short, mostly from 1 to 30 ms, while spawning sounds consist of continuous two pulses or three pulses, with a small number of single pulses and continuous several pulses. Pulse - intervals are long, mostly from 100 to 130 ms.
出处
《大连水产学院学报》
CSCD
北大核心
2007年第2期123-128,共6页
Journal of Dalian Fisheries University
基金
国家"863"项目资助(2002AA631090)
关键词
大黄鱼
发声
喂食
产卵
频谱特性分析
时域特性分析
Pseudosciaena crocea
sound production
feeding
spawning
spectral analysis
oscillogram analysis
