Marine Protected Areas (MPAs) are increasingly advocated for the protection of key functional groups like elasmobranchs (sharks and rays). However, substantial uncertainty remains regarding which species can benefit from MPAs, crucial information to support policy and management plans. Using Baited Remote Underwater Video Surveys (BRUVS), a study was conducted on Sir Bu Nair Island in the United Arab Emirates encompassing a range of depths and habitat types within the MPA borders. A total of 96 deployments with 117 video hours recorded were analysed to assess the diversity, relative abundance and habitat associations of elasmobranchs. Surveys recorded 40 elasmobranchs including two species of sharks and seven species of rays. Overall, catch per unit effort for elasmobranchs was slightly higher overall, lower for sharks, and higher for rays compared to a similar study using BRUVS across United Arab Emirates waters. Two reef-associated species in early life stages, blacktip reef shark (Carcharhinus melanopterus) and Halavi guitarfish (Glaucostegus halavi) listed as Near Threatened and Critically Endangered on the IUCN Red List of Threatened Species respectively showed the highest frequency of occurrence of species representing 44.4% of all sightings. These results show the value of this MPA in protecting critical habitats for elasmobranchs while suggesting its limitation in protecting adult life stages and other elasmobranchs with wider ranging movements that are likely threatened by fishing in waters adjacent to the MPA. This study provides critical information to support the development of a Sir Bu Nair management plan and highlights further research needs around the island. Finally, it reinforces the need of additional management measures to protect and promote the recovery of elasmobranchs in the United Arab Emirates and broader Arabian Gulf.

海洋保护区（MPA）被越来越多地提倡用于保护重要的功能组，例如弹性支（鲨鱼和rays鱼）。但是，关于哪些物种可以从MPA中受益，支持政策和管理计划的关键信息仍然存在很大的不确定性。利用诱饵远程水下视频调查（BRUVS），在阿拉伯联合酋长国布奈尔岛上进行了一项研究，涵盖了MPA边界内的各种深度和栖息地类型。分析了总共96个部署情况，记录了117个视频小时，以评估弹性分支的多样性，相对丰度和栖息地关联。调查记录了40种弹性分支，其中包括两种鲨鱼和七种射线。总体而言，弹性bra的单位捕捞量总体略高，鲨鱼的捕捞量更低，与在整个阿拉伯联合酋长国水域使用BRUVS进行的类似研究相比，射线的辐射更高。处于生命早期的两个与珊瑚礁相关的物种，tip礁鲨（Carcharhinus melanopterus）和哈拉维fish鱼（Glaucostegus halaviIUCN濒危物种红色名录中被列为“近乎威胁和极度濒危”的物种，其发生的频率最高，占所有目击者的44.4％。这些结果表明该MPA在保护弹bra的关键栖息地方面的价值，同时表明了其在保护成年生命阶段和其他范围更广的活动的弹s中的局限性，这些活动可能受到在MPA邻近水域捕捞的威胁。这项研究提供了重要信息，以支持布奈尔爵士的管理计划的制定，并着重强调了该岛各地的进一步研究需求。最后，它强调需要采取额外的管理措施，以保护和促进阿拉伯联合酋长国和更广泛的阿拉伯海湾的弹s的恢复。