Rhyming in the cold: first evidence of soniferous fishes in the Southern Ocean

IF 4.3 2区环境科学与生态学 Q1 ECOLOGY

Remote Sensing in Ecology and Conservation Pub Date : 2026-03-13 DOI:10.1002/rse2.70065

Fannie W. Shabangu, Grant van der Heever, Charles von der Meden, Hannah Truter, Stephen J. Lamberth, Ofer Gon

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引用次数: 0

Abstract

Acoustic ecology of Southern Ocean fishes is currently unknown due to lack of dedicated fish acoustic research from those remote/inaccessible areas. The objective of this study was to investigate the monthly and diel acoustic occurrence pattern of benthic fishes relative to environmental conditions at the sub‐Antarctic Prince Edward Islands (PEIs) in the Southern Ocean. To collect our passive acoustic data, we used an autonomous recorder deployed at ~167 m water depth on an oceanographic mooring over 21 months (April 2021 to December 2022). Benthic Ski‐Monkey III towed camera was deployed around the PEIs to identify potential sources of recorded underwater fish sounds. Three types of sounds (pops, grunts and drum sounds) were detected and validated using random forest models based on their characteristics. Pops and grunts were produced in series and as singlets. Pops were the most frequently detected sounds and were detected in December 2021 through May 2022, whereas grunts were detected in January through March 2022. Drum sounds were rare and were detected as singlets on a few occasions in December 2021 through March 2022. These monthly fish occurrences correspond to the breeding season of fishes in the Southern Ocean, suggesting the use of acoustic cues during breeding. From camera footage, Nototheniops larseni (painted notothen) was the only fish species found around the acoustic recorder location, and pops were putatively attributed to this abundant species, whereas other sounds were attributed to other observed species. Fish sound occurrence increased around sunrise and sunset. Sea surface temperatures between 5.2°C and 8°C were the primary predictor of fish acoustic occurrence, underscoring the potential vulnerability of these fish to environmental change. This study provides the first evidence of monthly and diel acoustic occurrence of soniferous fishes and demonstrates that bioacoustics can monitor fish biodiversity and breeding phenology in the Southern Ocean.

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在寒冷中押韵：南大洋中有声音鱼类的第一个证据

由于缺乏对这些偏远/难以到达地区的鱼类声学研究，目前南大洋鱼类的声学生态学尚不清楚。本研究的目的是调查南大洋爱德华王子群岛（pei）亚南极底栖鱼类的月和日声学发生模式与环境条件的关系。为了收集被动声学数据，我们在21个月（2021年4月至2022年12月）的时间里，在海洋系泊处约167米水深使用了一台自主记录仪。底栖Ski - Monkey III拖曳式摄像机部署在pei周围，以识别记录水下鱼类声音的潜在来源。三种类型的声音（砰的一声，咕噜声和鼓声）被检测并使用基于它们特征的随机森林模型进行验证。“老爷声”和“哼声”是连续制作的，并以单曲的形式出现。爆破声是最常被检测到的声音，在2021年12月至2022年5月被检测到，而咕噜声在2022年1月至3月被检测到。从2021年12月到2022年3月，鼓声非常罕见，有几次被探测到是单波。这些每月出现的鱼类数量与南大洋鱼类的繁殖季节相对应，表明在繁殖过程中使用了声学线索。从摄像机镜头来看，Nototheniops larseni（涂成notothen）是在声学记录器位置附近发现的唯一鱼类，而pop被认为是这个丰富的物种，而其他声音则归因于其他观察到的物种。日出和日落前后鱼声出现增加。海面温度在5.2°C至8°C之间是鱼类声学发生的主要预测因子，强调了这些鱼类对环境变化的潜在脆弱性。本研究首次提供了有声鱼类的月声和日声发生的证据，证明了生物声学可以监测南大洋鱼类的生物多样性和繁殖物候。

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来源期刊

Remote Sensing in Ecology and Conservation Earth and Planetary Sciences-Computers in Earth Sciences

CiteScore

9.80

自引率

5.50%

发文量

审稿时长

18 weeks

期刊介绍： emote Sensing in Ecology and Conservation provides a forum for rapid, peer-reviewed publication of novel, multidisciplinary research at the interface between remote sensing science and ecology and conservation. The journal prioritizes findings that advance the scientific basis of ecology and conservation, promoting the development of remote-sensing based methods relevant to the management of land use and biological systems at all levels, from populations and species to ecosystems and biomes. The journal defines remote sensing in its broadest sense, including data acquisition by hand-held and fixed ground-based sensors, such as camera traps and acoustic recorders, and sensors on airplanes and satellites. The intended journal’s audience includes ecologists, conservation scientists, policy makers, managers of terrestrial and aquatic systems, remote sensing scientists, and students. Remote Sensing in Ecology and Conservation is a fully open access journal from Wiley and the Zoological Society of London. Remote sensing has enormous potential as to provide information on the state of, and pressures on, biological diversity and ecosystem services, at multiple spatial and temporal scales. This new publication provides a forum for multidisciplinary research in remote sensing science, ecological research and conservation science.