Sounds, source levels, and associated behavior of humpback whales, southeast Alaska.
Sounds, source levels, and associated behavior of humpback whales, southeast Alaska.
复制标题
阿拉斯加东南部座头鲸的声音、声源水平和相关行为。
DOI：
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发表时间：
1986
影响因子：
2.4
通讯作者：
S. J. Ha
中科院分区：
文献类型：
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作者：
P. O. Thompson;W. Cummings;S. J. Ha
阿拉斯加东南部沃茨的座头鲸发出五种声音：呻吟、咕噜声、脉冲串、与呼吸孔相关的声音和表面撞击声。呻吟和咕噜声的频率（Hz）为20-1900。低频脉冲序列的主要能量在25-80 Hz的频带中，脉冲持续时间为300-400 ms。与气孔相关的声音，记录为过境鲸鱼遇到彼此，有两种类型：尖叫声，555-2000 Hz，和喇叭状喇叭爆炸，基本频率为414 Hz（中位数）。脉冲和扩频噪声分别与气泡形成和爆炸性爆裂有关，与螺旋进给机动有关。由3-21声序列中的吸虫或鳍状肢拍打引起的表面撞击。源级范围从162（低频脉冲串）到192分贝（表面撞击），re：1微帕，1米。在冬季繁殖地通常听到的歌曲，没有出现在我们的录音中。进食和其他鲸鱼活动可以根据声音的产生来监测。
Humpback whales in Southeast Alaskan waters produced five categories of sounds: moans, grunts, pulse trains, blowhole-associated sounds, and surface impacts. Frequencies (Hz) of moans and grunts were 20-1900. Major energy in low-frequency pulse trains was in a band of 25-80 Hz with pulse duration of 300-400 ms. Blowhole-associated sounds, recorded as transiting whales encountered one another, were of two types: shrieks, 555-2000 Hz, and trumpetlike horn blasts with fundamental at 414 Hz (median). Pulses and spread spectrum noise were associated with gas bubble formation and explosive bursts, respectively, in connection with spiral feeding maneuvers. Surface impacts resulted from fluke or flipper slaps in sequences of 3-21 sounds. Source levels ranged from 162 (low-frequency pulse trains) to 192 dB (surface impacts), re: 1 microPa, 1 m. Songs, commonly heard on winter breeding grounds, were absent from our recordings. Feeding and perhaps certain other whale activities can be monitored based on sound production.