Mesophotic coral reefs (~30–150 m) and deeper reefs (>150 m) represent some of the least explored and poorly documented habitats in our oceans. These deep ecosystems are both high in biodiversity and ecologically distinct from shallower reefs. They are also equally threatened by natural and anthropogenic factors. Thanks to advancements in remote undersea technologies, our access to and understanding of these poorly studied environments continues to expand. With current data now suggesting more stratified populations of reef fishes and a continuous yield of new species discovered in the mesophotic zone, now under global pressures of climate change and overfishing, the need to explore these ecosystems has never been greater. Most deep-sea (>200 m) biodiversity studies rely on dredging and trawling technologies that are not selective or targeted. Here we present on the design and field demonstration of a compact, low-cost, targeted reef fish sampling system intended for use on inspection-class ROVs in the mesophotic zone. During a research expedition to the Western Province of the Solomon Islands, the system successfully collected multiple novel fish species at depths ranging from 90 to 187 m. The results obtained during this expedition highlight the utility of ROV-based collecting systems, add to the growing knowledge of mesophotic reef communities, and inspire new techniques for sampling mobile faunas at depth.

中生珊瑚礁（〜30–150 m）和更深的珊瑚礁（> 150 m）代表了我们海洋中探索最少，文献记载最少的栖息地。这些深层的生态系统既具有较高的生物多样性，又在生态上与浅层的珊瑚区分开。它们也同样受到自然和人为因素的威胁。得益于远程海底技术的进步，我们对这些研究不足的环境的访问和了解不断扩大。目前的数据表明，在全球气候变化和过度捕捞的压力下，在食盐区发现的珊瑚礁鱼类种群更多，并且不断产生新物种，探索这些生态系统的需求从未如此强烈。最深海（> 200 m）生物多样性研究依赖于非选择性或针对性的疏technologies和拖网技术。在这里，我们介绍一种紧凑，低成本，针对性的礁鱼采样系统的设计和现场演示，该系统旨在用于介导区的检验级ROV。在对所罗门群岛西部省份的一次研究考察中，该系统成功地在90至187 m的深度范围内收集了多种新型鱼类。在这次考察中获得的结果突出了基于ROV的采集系统的实用性，增加了对食虫礁群落的认识，并激发了对深度移动动物进行采样的新技术。有目标的礁鱼采样系统，旨在用于中生区检验等级的遥控潜水器。在对所罗门群岛西部省份的一次研究考察中，该系统成功地在90至187 m的深度范围内收集了多种新型鱼类。在这次考察中获得的结果突出了基于ROV的采集系统的实用性，增加了对食虫礁群落的认识，并激发了对深度移动动物进行采样的新技术。有目标的礁鱼采样系统，旨在用于中生区检验等级的遥控潜水器。在对所罗门群岛西部省份的一次研究考察中，该系统成功地在90至187 m的深度范围内收集了多种新型鱼类。在这次考察中获得的结果突出了基于ROV的采集系统的实用性，增加了对食虫礁群落的认识，并激发了对深度移动动物进行采样的新技术。