Hábitos alimentarios del besugo Epigonus crassicaudus combinando contenido estomacal e isótopos estables

Felipe Sepúlveda, Patricio Gálvez, Blanca E. Molina-Burgos, Roberto Melénde, Sebastian A. Klarian

Resultado de la investigación: Contribución a una revistaArtículo

1 Cita (Scopus)

Resumen

The Cardinalfish, Epigonus crassicaudus, is a species of economic importance for the fishing activity that operates in south-central Chile. Despite this, little is known about their biology. Therefore, this work studied the feeding habits combining stomach contents and stable isotopes analyses. The results showed that the mesopelagic fishes (Myctophidae, Stomiidae) were the most important prey contributing an 80% in the Cardinalfish diet, following by the crustaceans (Sergestes arcticus) with 10%. No differences were detected among maturity stages. Furthermore, the stable isotopes result exhibited average values of δ15N 17.12 ± 1.1 and δ13C -17.51 ± 0.7 δ13C values was proportional to the cardinalfish size, which larger specimens inhabit deeper (demersal) than those with small size. According with these results the Cardinalfish is positioned as a secondary consumer.

Título traducido de la contribuciónFeeding habits of Cardinalfish Epigonus crassicaudus, using stomach contents and stable isotopes
Idioma originalEspañol
Páginas (desde-hasta)31-37
Número de páginas7
PublicaciónRevista de Biologia Marina y Oceanografia
Volumen53
EstadoPublicada - 1 ene 2018

Palabras clave

  • Fisheries biology
  • Fishes
  • Southeastern Pacific Ocean
  • Trophic ecology

Áreas temáticas de ASJC Scopus

  • Oceanografía
  • Ciencias acuáticas

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