Alimentación y relaciones tróficas del pez espada (Xiphias gladius Linnaeus, 1758), frente a Chile centro-norte durante 2005

Sergio Letelier, Roberto Meléndez, Esteban Carreño, Sebastián Lopez, Patricio Barría

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

16 Citas (Scopus)

Resumen

A total of 126 swordfish (Xiphias gladius) stomach were analyzed. The stomachs were obtained from specimens captured within the 25° to 34°S and 78° to 90°W area, by industrial longline vessels. Only 72 (57.1%) of the total stomach had food items in their stomachs, whit a sex proportion of 32 males (44.4%), 37 females (51.4%) and 3 indeterminate (4.2%). Traditional methods for the stomach contents analysis such as the numeric, frequency of occurrence, gravimetric and index of relative importance (IRI) were used. Cephalopods were the main food items (%IRI>90) followed by the fishes (%IRI<4). The squid (Dosidicus gigas) was the principal food in this study (%IRI = 85.1). No significant differences were found between the feeding of males and females of swordfishes (U = 81; p = 0.4862, p<0.05). A cluster analysis showed higher stomach contents similarity between fall and winter than those from spring, within the size groups the I group was different than others and finally, the feeding from zone 3 were different from others zones.

Título traducido de la contribuciónFeeding and trophic relationships of the swordfish (Xiphias gladius Linnaeus, 1758), off central and northern Chile during 2005
Idioma originalEspañol
Páginas (desde-hasta)107-119
Número de páginas13
PublicaciónLatin American Journal of Aquatic Research
Volumen37
N.º1
DOI
EstadoPublicada - 6 jul 2009

Palabras clave

  • Chile
  • Feeding
  • Southeastern Pacific Ocean
  • Xiphias gladius

Áreas temáticas de ASJC Scopus

  • Oceanografía
  • Ciencias acuáticas

Huella

Profundice en los temas de investigación de 'Alimentación y relaciones tróficas del pez espada (Xiphias gladius Linnaeus, 1758), frente a Chile centro-norte durante 2005'. En conjunto forman una huella única.

Citar esto