MARINE BIOLOGICAL CHORUSES OBSERVED IN TROPICAL WATERS NEAR AUSTRALIA
MARINE BIOLOGICAL CHORUSES OBSERVED IN TROPICAL WATERS NEAR AUSTRALIA
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DOI：
10.1121/1.382038
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发表时间：
1978-01-01
影响因子：
2.4
通讯作者：
CATO, DH
中科院分区：
文献类型：
--
作者：
CATO, DH
本文描述了在东印度洋、西太平洋和澳大利亚附近帝汶海热带沃茨环境噪声中的生物合唱的观测结果。这些合唱一次发生几个小时，在400 Hz和4 kHz之间的频率具有最大能量，频谱峰值主要在800 Hz，1.6-2 kHz和3 kHz。在合唱期间，噪音频谱水平上升到30分贝以上的通常背景噪音。晚上合唱发生的统计数据表明，他们会发生在大多数，如果不是所有的晚上在测量的位置，可能是相当广泛的和附近的浅水沃茨的区域。也有短暂的合唱，这是观察在不同的时间，一天超过几天的时间，但不是之前或之后。可能的来源的合唱进行了讨论。至少有3个来源的定期晚上合唱，可能是鱼或海胆。一些短暂的合唱，光谱上类似于常规合唱，由强烈的咔哒声组成，显然来自抹香鲸。
Observations of biological choruses in the ambient noise of tropical waters of the east Indian Ocean, the west Pacific Ocean and the Timor Sea near Australia are described. These choruses occurred for a few hours at a time and had most energy at frequencies between 400 Hz and 4 kHz, with spectral peaks mainly at 800 Hz, 1.6-2 kHz and 3 kHz. During choruses, noise spectrum levels rose up to 30 dB above the usual background noise. Statistics of occurrence of the evening choruses indicate that they would occur on most, if not all evenings at the locations of measurement and are probably fairly widespread in and near shallow waters of the region. There are also transitory choruses which are observed at various times of day over periods of a few days but not before or after. Possible sources of the choruses are discussed. There are at least 3 sources of the regular evening choruses, possibly fish or sea urchins. Some of the transitory choruses, spectrally similar to the regular choruses, were composed of intense clicking sounds, apparently from sperm whales.