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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Remotely operated vehicles as alternatives to snorkellers for video-based marine research
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Remotely operated vehicles as alternatives to snorkellers for video-based marine research

机译：远程操作车辆可代替浮潜者进行基于视频的海洋研究

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Capabilities of remotely operated vehicles (ROVs) have increased substantially in the last decade, and mini-ROV designs are now able to conduct visual research frequently conducted by snorkellers or divers in shallow marine environments. There are logistical, financial and experimental benefits of using mini-ROVs over snorkellers or divers, yet the adoption of mini-ROVs for common shallow underwater research tasks has not been widespread. To assess the capabilities of mini-ROVs to sample fish communities we compared the results produced by a mini-ROV to that of snorkellers for performing two of the most common marine video-based research activities (1) underwater visual fish census and (2) observing and tracking fish behaviour. Results of both activities suggested that the fish community observed by the mini-ROV was not distinguishable to that observed by the snorkellers, however, the mini-ROV detected significantly more fish (39% higher abundance) and greater diversity (24% higher). When tracking butterflyfish behaviour, video obtained from the mini-mini-ROV was as efficient as a snorkeller at finding and tracking individuals. Video from the mini-ROV produced comparable responses to that from snorkellers with hand-held GoPros, although over the course of tracks the response between the two methods differed, with a decrease in refuge time for snorkeller video and an increase in tailbeat rate for the mini-ROV video. Our study shows that video obtained from mini-ROVs can be used for research in shallow marine environments when direct manipulations are not required. We predict the research capabilities of mini-ROVs to increase substantially in the coming years, which should cement the use of this tool for research across all marine environments.
机译：在过去的十年中，遥控车辆（ROV）的功能已大大提高，并且微型ROV设计现在能够进行浮潜者或潜水员在浅海环境中经常进行的视觉研究。相对于浮潜者或潜水者而言，使用微型遥控潜水器具有后勤，财务和实验上的好处，但对于常见的浅水水下研究任务采用微型遥控潜水器尚不广泛。为了评估微型ROV采样鱼类群落的能力，我们将微型ROV与浮潜者产生的结果进行了两项最常见的基于海洋视频的研究活动（1）水下视觉鱼类普查和（2）观察和跟踪鱼类行为。两项活动的结果均表明，迷你ROV所观察到的鱼类群落与浮潜者所观察到的没有区别，但是迷你ROV所探测到的鱼类明显更多（丰度高39％）和多样性更大（高24％）。在跟踪蝴蝶鱼的行为时，从迷你-迷你遥控飞行器获得的视频在浮潜者发现和跟踪个人方面同样有效。迷你ROV的视频产生的响应与带手持GoPro的浮潜者的响应相当，尽管在跟踪过程中，两种方法之间的响应有所不同，浮潜视频的避难时间减少，而尾部拍速增加。迷你ROV视频。我们的研究表明，当不需要直接操纵时，从微型ROV获得的视频可用于浅海环境中的研究。我们预计迷你ROV的研究能力在未来几年将大大提高，这将巩固该工具在所有海洋环境中的研究应用。

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