The current status of the elasmobranchs’ populations and distribution in the Canary Islands is uncertain. Here we investigate the abundance and distribution patterns of coastal elasmobranchs of Tenerife, with a special attention on the Aetomylaeus bovinus population using a photo-identification methodology. A total of 35 visual surveys were conducted in 5 coastal areas, in which pictures were taken every time an elasmobranch individual was sighted to conduct further biometry analyses. For A. bovinus sightings, pictures were used to identify each individual. Relative abundances and sex-ratios of the elasmobranchs recorded were calculated. The Western Coastline of the island was more diverse, showing 8 species out of the 9-total observed. The photo-identification technique allowed a preliminary estimation of the population size of A. bovinus in El Palmar area with 10 individuals identified and 10 re-sightings over a period of 12 months. This study provides the first relevant information regarding broad distribution, abundance and diversity of coastal elasmobranchs around Tenerife. The study also provides information regarding site fidelity of 3 mature individuals of Aetomylaeus bovinus in the South West area.

目前在加那利群岛的 elasmobranchs 种群和分布状况尚不确定。在这里，我们调查了特内里费岛沿海 elasmobranchs 的丰度和分布模式，特别关注使用照片识别方法的Aetomylaeus bovinus种群。共在 5 个沿海地区进行了 35 次目视调查，每次看到弹鳃个体时都会拍照，以进行进一步的生物测定分析。对于A. bovinus目击事件，图片被用来识别每个人。计算了记录的弹性鳃类动物的相对丰度和性别比例。该岛的西部海岸线更加多样化，在观察到的 9 个物种中显示了 8 个。照片识别技术允许对 El Palmar 地区A. bovinus的种群规模进行初步估计，在12 个月的时间里确定了 10 只个体并重新发现了 10 次。这项研究提供了关于特内里费岛周围沿海弹性鳃类动物的广泛分布、丰度和多样性的第一个相关信息。该研究还提供了有关西南地区3 个成熟牛 Aetomylaeus个体的现场保真度的信息。