Tracking blue whales in the eastern tropical Pacific with an ocean-bottom seismometer and hydrophone array
Tracking blue whales in the eastern tropical Pacific with an ocean-bottom seismometer and hydrophone array
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DOI：
10.1121/1.3158929
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发表时间：
2009-09-01
影响因子：
2.4
通讯作者：
Hernandez, Olga
中科院分区：
文献类型：
--
作者：
Dunn, Robert A.;Hernandez, Olga
1997年11月22-26日，在东太平洋海隆北方（北纬9度）附近海域，用25个海底水听器和三分量地震仪记录了东北太平洋蓝鲸的低频叫声。呼叫类型A，B，C和D被确定;最常见的模式是类似于130- 135秒重复的AB序列，对于任何个别的鲸鱼，持续数小时。多达八个蓝鲸个体被记录在足够靠近仪器的地方，以确定它们的位置，并使用呼叫的B分量和贝叶斯反演程序逐呼叫跟踪。对于这八头鲸鱼中的四头，整个呼叫序列和游泳轨迹被确定为20-26小时的周期;其他鲸鱼被跟踪的时间要短得多。这八头鲸鱼是在学术地震船R/V Maurice Ewing进行气枪活动期间进入该地区的。作者研究了鲸鱼的位置和呼叫特征与气枪活动的时间。虽然这些数据不允许对行为反应进行彻底的调查，但没有观察到发声或运动与气枪活动的相关性。(C)2009年，美国声学学会。[DOI：10.1121/1.3158929]
Low frequency northeastern Pacific blue whale calls were recorded near the northern East Pacific Rise (9 degrees N latitude) on 25 ocean-bottom-mounted hydrophones and three-component seismometers during a 5-day period (November 22-26, 1997). Call types A, B, C, and D were identified; the most common pattern being similar to 130- 135 s repetitions of the AB sequence that, for any individual whale, persisted for hours. Up to eight individual blue whales were recorded near enough to the instruments to determine their locations and were tracked call-by-call using the B components of the calls and a Bayesian inversion procedure. For four of these eight whales, the entire call sequences and swim tracks were determined for 20-26-h periods; the other whales were tracked for much shorter periods. The eight whales moved into the area during a period of airgun activity conducted by the academic seismic ship R/V Maurice Ewing. The authors examined the whales' locations and call characteristics with respect to the periods of airgun activity. Although the data do not permit a thorough investigation of behavioral responses, no correlation in vocalization or movement with airgun activity was observed. (C) 2009 Acoustical Society of America. [DOI: 10.1121/1.3158929]