Peces Del Archipi?lago De Las Islas Revillagigedo: Una Actualizaci?n Sistem?tica Y Biogeogr?fica: Fishes Checklist

We present a comprehensive and update checklist systematic of the icthyofauna of this insular region, which is comprised by 366 species, 241 genera, 101 families, 28 orders and tree classes. The families with the most richness specific were: Carangidae (20 spp.), Serranidae (19) and Muraenidae (18). Socorro Island was recorded 220 species, Clarion Island 179, San Benedicto Island 128; followed by Roca Partida Island 62. This diversity as well as endemic species number is relationship with the surface of each island. There is a higher similarity ictiofaunistic between Clarion Island and Socorro Island; while, the lowest similarity was between San Benedicto Island and Roca Partida Island. The ichthyogeography of the Revillagigedo Archipelago has a higher affinity with the Panamic province (42.3%), followed by the Cortes (41.5%). A higher number of species are of the wide distribution (circumglobal: 21 %; amphipacific 22.4 %). Also, endemic species are represented by 26 species (7.1%).

本研究构建了该群岛海域鱼类区系（ichthyofauna）的系统性综合更新名录，共涵盖366种、241属、101科、28目及3纲。物种丰富度最高的3个科依次为鲹科（Carangidae，20种）、鮨科（Serranidae，19种）及海鳗科（Muraenidae，18种）。其中索科罗岛（Socorro Island）记录鱼类220种，克拉里昂岛（Clarion Island）179种，圣贝内迪克托岛（San Benedicto Island）128种，罗卡帕蒂达岛（Roca Partida Island）以62种紧随其后。该海域的鱼类多样性及特有物种数量均与各岛屿的表面积呈显著相关关系。克拉里昂岛与索科罗岛的鱼类区系相似度最高，而圣贝内迪克托岛与罗卡帕蒂达岛之间的相似度最低。雷维利亚希赫多群岛（Revillagigedo Archipelago）的鱼类生物地理学分区与泛美生物地理区（Panamic province）亲缘关系最近，占比达42.3%，其次为科尔特斯海区（Cortes），占比41.5%。多数鱼类为广布种：环全球广布种占21%，跨太平洋广布种占22.4%。此外，该海域特有物种共计26种，占总物种数的7.1%。