Incidental capture of the short-beaked common dolphin (Delphinus delphis) in the industrial purse seine fishery in northern Chile



Título del documento: Incidental capture of the short-beaked common dolphin (Delphinus delphis) in the industrial purse seine fishery in northern Chile
Revista: Revista de biología marina y oceanografía
Base de datos:
Número de sistema: 000599257
ISSN: 0717-3326
Autores: 1
2
Instituciones: 1Birdlife International, Albatross Task Force,
2Universidad de Valparaíso, Facultad de Ciencias, Valparaíso. Chile
Año:
Periodo: Ago
Volumen: 51
Número: 2
Paginación: 429-433
País: Chile
Idioma: Inglés
Resumen en inglés Incidental capture of marine mammals during fishing activities is a worldwide concern given the potentially drastic effects this can have on marine mammal populations. To assess the interaction between marine mammals and industrial fishery, an onboard observer monitored 8 purse seine fishing trips in northern Chile. He reported the incidental capture of 58 short-beaked common dolphins, 3 of which died, and one South American sea lion, which also died. The mortality rate of dolphins was 0.15 dolphins/haul and 0.3 dolphins/fishing trip, whereas for sea lions the mortality rate was 0.05 sea lions/haul and 0.125 sea lions/fishing trip. This study recorded for the first time the incidental capture of common dolphins in industrial fishery in Chile, and emphasizes the need to implement a specific monitoring plan to estimate bycatch rates of marine mammals.
Keyword: Marine mammals,
Bycatch,
Purse seine,
Anchovy
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