The available data on occurrence patterns of cetaceans in the Red Sea area of the Kingdom of Saudi Arabia is very limited. The dearth of information is of pressing conservation concern as the coastline is undergoing rapid development as part of the Kingdom's effort to diversify its national economy. To understand how these developments will impact cetaceans in the region, the first large-scale acoustic and visual survey in the Kingdom's part of the Gulf of Aqaba and the northeastern Red Sea was undertaken in 2020. The results of the acoustic surveys reveal 3.6 encounters per 100 km of track line of odontocete species with variable distribution across the study area. No baleen whale vocalizations were detected. Through visual surveys, five odontocete species were identified within the study area: Tursiops truncatus, T. aduncus, Stenella attenuata, S. longirostris, and two opportunistic sighting of single Grampus griseus.

中文翻译：

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沙特阿拉伯王国鲸目动物发生模式的被动声学监测和目视观测

关于沙特阿拉伯王国红海地区鲸目动物发生模式的现有数据非常有限。作为沙特国民经济多元化努力的一部分，海岸线正在经历快速发展，因此信息的缺乏成为迫切的保护问题。为了了解这些发展将如何影响该地区的鲸目动物，2020 年在沙特王国的亚喀巴湾和红海东北部地区进行了首次大规模声学和视觉调查。声学调查的结果显示，每个物种都会遭遇 3.6 次遭遇。 100 公里长的齿鲸物种轨迹线，在整个研究区域内分布各异。没有检测到须鲸发声。通过目视调查，在研究区域内发现了五种齿鲸：Tursiops truncatus、T. aduncus、Stenella attenuata、S. longirostris，以及两种机会性目击的单一灰鲸。