Data/hora: 08/06/2024 15:42:59

Provedor de dados: | Neotropical Ichthyology
País: | Brazil
Título: | Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean
Autores: | Loor-Andrade,Peggy; Pincay-Espinoza,Jonathan; Carrera-Fernández,Maribel; Rosas-Luis,Rigoberto.
Data: | 2017-01-01
Ano: | 2017
Palavras-chave: | Feeding strategy; Food partitioning; Istiophoridae; Trophic ecology; Xiphiidae.
Resumo: | ABSTRACT The feeding habits of Makaira nigricans, Kajikia audax, Istiophorus platypterus (Istiophoridae), and Xiphias gladius (Xiphiidae) in the southeast Pacific Ocean were examined in Manta and Santa Rosa, Ecuador. This study describes the diets of these billfish species, evaluates dietary differences between species, and assesses seasonal differences in diet. A total of 274 M. nigricans, 321 K. audax, 267 I. platypterus, and 252 X. gladius were collected between February 2014 and April 2015. The scombrid Auxis spp. was the most important prey for M. nigricans, K. audax and I. platypterus, while the squid Dosidicus gigas was the most important prey for X. gladius. The results of the ANOSIM confirmed significant differences in feeding habits between the members of the family Istiophoridae and X. gladius. Seasonal differences for I. platypterus also were observed. Billfishes are specialist consumers with a narrow niche breadth (B a: M. nigricans and K. audax=0.1, I. platypterus=0.05, and X. gladius=0.04).
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000300204
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/1982-0224-20160162
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.15 n.3 2017
Fonte: | info:eu-repo/semantics/openAccess