In situ inter-standardization of acoustics data : an integrated database for fish school behaviour studies
In situ inter-standardization of acoustics data : an integrated database for fish school behaviour studies
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声学数据的原位互标准化：鱼群行为研究的综合数据库
DOI：
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发表时间：
2002
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通讯作者：
A. Rouault
中科院分区：
文献类型：
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作者：
P. Brehmer;F. Gerlotto;A. Rouault
本文提出了一种方法，允许跨标准化的三个来源的声学数据提供了几个不同的声学设备，以监测中上层鱼群的行为。使用了一个全向多波束声纳（32波束/23.75kHz），一个横向多波束扫描声纳（60波束/455 kHz）船上的研究船和一个便携式回声测深仪（129 kHz）船上的小船。该方法分为两部分。第一个涉及多波束声学声纳（横向和全向），第二个涉及便携式回声测深仪和全向声纳。使用便携式回声测深仪和全向声纳的相同的学校被记录。对侧向声纳和全向声纳进行了相同的实验。全向声纳数据的回波特性进行了比较与其他两个来源的声学数据。鱼群的初步“行为数据库”是通过从三个互补装置收集信息获得的。测量了各鱼群的深度、大小、二维和三维形态、声学特征和游泳行为特征（游泳速度和模式）。通过初步结果讨论了这种数据库对渔业研究的潜在产出。
This paper presents a method that permits to inter standardize three sources of acoustic data delivered by several different acoustic devices in order to monitor the behaviour of pelagic fish schools. An omnidirectional multibeam sonar (32 beams/23.75kHz), a lateral multi-beam scanning sonar (60 beams/455kHz) onboard a research vessel and a portable echo sounder (129kHz) onboard a small craft are used. The method is presented in two parts. The first deals with the multi-beam acoustic sonar (lateral and omnidirectional) and the second with the portable echo sounder and the omnidirectional sonar. The same schools using the portable echo sounder and the omnidirectional sonar are recorded. The same experiment with the lateral sonar and the omnidirectional one is done. The echo characteristics of the omnidirectional sonar data are compared with the two other sources of acoustic data. The preliminary "behavioural database" of fish schools is obtained by gathering the information from the three complementary devices. For each school the depth, size, two and three dimension morphology, acoustic characteristics and the swimming behaviourcharacteristics (swimming speed and pattern) are measured. The potential output of such database for fisheries research is discussed through preliminary results.