Registro más austral del tiburón de arrecife de punta blanca Triaenodon obesus (Carcharhiniformes, Carcharhinidae) en el Pacífico Tropical Oriental
Year: 2025
Type: article
Abstract: This study reports the occurrence of Triaenodon obesus (Rüppell, 1837) based on morphological characteristics and DNA sequence analyses of the COI and 16S rRNA genes. In August 2024, a 132 cm total length specimen was captured by spearfishing at Punta Mero, Tumbes (northern Peru). The specimen exhibited a short, rounded snout; the first dorsal fin positioned closer to the pelvic than to the pectoral fins; and distinct white tips on the first and second dorsal fins. DNA sequence analyses of the COI and 16S rRNA genes revealed a high degree of similarity (>99.0%) with T. obesus sequences available in the BOLD and GenBank databases, whereas similarity with other shark species was lower than 96.3% and 98.0%, respectively. This finding increases the known shark diversity in Peruvian waters and extends the southern distribution range of T. obesus in the Tropical Eastern Pacific to Tumbes, northern Peru.
Source: Revista Peruana de Biología
Authors: Beder Ramírez Segura, Solange Alemán Mejía, Carlos Luque Sanchez
Language: English
Subfield: Nature and Landscape Conservation
Field: Environmental Science
Domain: Physical Sciences
SDG: Life below water
Open Access status: diamond
OpenAlex ID: W4415079236
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