Quantifying the ability of imaging sonar to identify fish species at a subtropical artificial reef
Quantifying the ability of imaging sonar to identify fish species at a subtropical artificial reef
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量化成像声纳识别亚热带人工鱼礁鱼类种类的能力
DOI：
10.1093/icesjms/fsad156
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发表时间：
2023
影响因子：
3.3
通讯作者：
Sibley E
中科院分区：
文献类型：
--
作者：
Sibley E
成像声呐（ISs）是高频声学设备，越来越多地被用于研究海洋和淡水栖息地的鱼类。声学设备在定量物种丰富度方面受到限制，以前使用IS识别鱼类的尝试大多集中在低物种丰富度或高形态多样性的组合上。本研究旨在确定IS在西澳大利亚珀斯的亚热带人工礁上识别鱼类种类的能力。通过同步光学影像对所有鱼类进行了识别和描述，并确定了几种可以使用IS定义的鱼类特征。这些特征被用来创建一个聚类算法，以推断珊瑚礁中最丰富的五个物种的物种身份。两个物种（西澳大利亚色鼠和斜舌鼠）的所有鱼的身份都得到了100%的成功推断，但其余三个物种（沙列拉·dumerili， auricularis和klunzingeri）的个体都没有被正确识别。另一种基于聚类的方法对独立于分类推断的IS检测的鱼类进行分类。总体而言，本研究表明，IS可以以不同的成功率识别珊瑚鱼，并提出了一种描述鱼类组合的替代方法，而不考虑物种身份。
Imaging sonars (ISs) are high-frequency acoustic devices that are increasingly being used to study fish in marine and freshwater habitats. Acoustic devices are limited in quantifying species richness, and previous attempts to identify fish species using IS have mostly focused on assemblages of low species richness or high morphological diversity. This study aimed to determine the ability of IS for identifying fish species at a subtropical artificial reef off Perth, Western Australia. Several fish traits that could be defined using IS were identified and described for all fish species observed with simultaneous optical footage. These traits were used to create a clustering algorithm to infer the species identity of IS detections of the five most abundant species at the reef. The identities of all fish from two species (Chromis westaustralisandNeatypus obliquus) were inferred with 100% success, though no individuals from the remaining three species (Seriola dumerili, Coris auricularis, andPempheris klunzingeri) were correctly identified. An alternative clustering-based approach to categorising fish detected by IS independent of taxonomic inference was also implemented. Overall, this study demonstrates that IS can identify reef fish with variable success, and proposes an alternative method for describing fish assemblages irrespective of species identity.