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<p>The spinetail devil ray <i>Mobula mobular</i> is a large pelagic mobulid with a broad but incompletely documented distribution in the eastern Pacific Ocean. A prior Chilean record exists based on a stranded specimen identified under a name now regarded as a junior synonym of <i>M. mobular</i> under current taxonomy, however, no genetically corroborated occurrence linked to direct fisheries interaction has been documented for Chile to date. Here we report the second confirmed occurrence of <i>M. mobular</i> in Chilean waters, and the first genetically validated record associated with incidental capture in an artisanal gillnet fishery, based on a specimen landed near Arica in northern Chile. Species identification was supported by diagnostic morphological characters, DNA barcoding of the mitochondrial cytochrome c oxidase subunit I (<i>COX1</i>) gene, and the phylogenetic reconstruction. The resulting 500&#xa0;bp <i>COX1</i> sequence (GenBank accession number PV637730) showed 100% similarity to <i>M. mobular</i> sequences in both GenBank and Barcode of Life Data System (BOLD). In addition, phylogenetic analysis recovered the specimen within the <i>M. mobular</i> clade with bootstrap support (100%), consistent with the morphological and barcoding-based identification. Verified records of mobulid rays in Chilean waters remain scarce and often uncertain, particularly for large pelagic species that interact sporadically with coastal fisheries. This record contributes new baseline information on the occurrence of <i>M. mobular</i> in northern Chile and its interaction with small-scale fisheries in the southeastern Pacific Ocean, highlighting the importance of integrating different approaches to document their distribution increasing international concern for the conservation of mobulid rays.</p>

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Genetically Confirmed Occurrence of Mobula mobular (Bonnaterre 1788) in Northern Chile

  • 期刊论文

  • 发表日期：

    2026年6月23日

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  • Ilia Cari,
  • Pablo Dufflocq,
  • Ignacio Contreras,
  • Patricia Zárate

摘要

The spinetail devil ray Mobula mobular is a large pelagic mobulid with a broad but incompletely documented distribution in the eastern Pacific Ocean. A prior Chilean record exists based on a stranded specimen identified under a name now regarded as a junior synonym of M. mobular under current taxonomy, however, no genetically corroborated occurrence linked to direct fisheries interaction has been documented for Chile to date. Here we report the second confirmed occurrence of M. mobular in Chilean waters, and the first genetically validated record associated with incidental capture in an artisanal gillnet fishery, based on a specimen landed near Arica in northern Chile. Species identification was supported by diagnostic morphological characters, DNA barcoding of the mitochondrial cytochrome c oxidase subunit I (COX1) gene, and the phylogenetic reconstruction. The resulting 500 bp COX1 sequence (GenBank accession number PV637730) showed 100% similarity to M. mobular sequences in both GenBank and Barcode of Life Data System (BOLD). In addition, phylogenetic analysis recovered the specimen within the M. mobular clade with bootstrap support (100%), consistent with the morphological and barcoding-based identification. Verified records of mobulid rays in Chilean waters remain scarce and often uncertain, particularly for large pelagic species that interact sporadically with coastal fisheries. This record contributes new baseline information on the occurrence of M. mobular in northern Chile and its interaction with small-scale fisheries in the southeastern Pacific Ocean, highlighting the importance of integrating different approaches to document their distribution increasing international concern for the conservation of mobulid rays.