LENGTH-WEIGHT RELATIONSHIPS FOR 14 FISH SPECIES OF NAPO RIVER BASIN, PERUVIAN AMAZON

• Autores: GARCIA-AYALA, James Raúl, BRAMBILLA, Eduardo Meneguzzi, DAVID, Gianmarco Silva, SÁNCHEZ RIVEIRO, Homero
• Formato: artículo
• Fecha de Publicación: 2020
• Institución: Instituto de investigaciones de la Amazonía Peruana
• Repositorio: Folia Amazónica
• Lenguaje: inglés
• OAI Identifier: oai:ojs.pkp.sfu.ca:article/499
• Enlace del recurso: https://revistas.iiap.gob.pe/index.php/foliaamazonica/article/view/499
• Nivel de acceso: acceso abierto
• Materia: conservation; fishery; morphometric parameters; population biology; conservación; pesca; parámetros morfométricos; biología de poblaciones

This work presents the length-weight relationships of 14 species of fish of the Napo River basin. Fish collections were carried out between 2012 and 2014, using gill nets and seine. A total of 1896 specimens, belonging to 14 species and five orders were analyzed. The allometric coefficient b ranged from 2.69 to 3.78. A new record of length-weight relationship is presented for Curimata cisandina (Allen, 1942). The comparisons with other Amazonian studies indicated differences in the parameters a and b of LWR with this study for the species Triportheus angulatus (Spix & Agassiz, 1829), Mylossoma duriventre (Cuvier, 1818), Roeboides myersii Gill, 1870 and Pellona castenaena Valenciennes, 1847 and only parameter b for Psectrogaster amazonica. The results presented in this work contribute to a better knowledge of fish resources in the region of the Peruvian Amazon, especially in the Napo River basin.