Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean

Detalhes bibliográficos
Autor(a) principal: Loor-Andrade,Peggy
Data de Publicação: 2017
Outros Autores: Pincay-Espinoza,Jonathan, Carrera-Fernández,Maribel, Rosas-Luis,Rigoberto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Neotropical ichthyology (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000300204
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).
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spelling Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific OceanFeeding strategyFood partitioningIstiophoridaeTrophic ecologyXiphiidaeABSTRACT 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).Sociedade Brasileira de Ictiologia2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000300204Neotropical Ichthyology v.15 n.3 2017reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/1982-0224-20160162info:eu-repo/semantics/openAccessLoor-Andrade,PeggyPincay-Espinoza,JonathanCarrera-Fernández,MaribelRosas-Luis,Rigobertoeng2017-10-02T00:00:00Zoai:scielo:S1679-62252017000300204Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2017-10-02T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false
dc.title.none.fl_str_mv Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean
title Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean
spellingShingle Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean
Loor-Andrade,Peggy
Feeding strategy
Food partitioning
Istiophoridae
Trophic ecology
Xiphiidae
title_short Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean
title_full Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean
title_fullStr Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean
title_full_unstemmed Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean
title_sort Feeding habits of billfishes (Carangaria: Istiophoriformes) in the Ecuadorian Pacific Ocean
author Loor-Andrade,Peggy
author_facet Loor-Andrade,Peggy
Pincay-Espinoza,Jonathan
Carrera-Fernández,Maribel
Rosas-Luis,Rigoberto
author_role author
author2 Pincay-Espinoza,Jonathan
Carrera-Fernández,Maribel
Rosas-Luis,Rigoberto
author2_role author
author
author
dc.contributor.author.fl_str_mv Loor-Andrade,Peggy
Pincay-Espinoza,Jonathan
Carrera-Fernández,Maribel
Rosas-Luis,Rigoberto
dc.subject.por.fl_str_mv Feeding strategy
Food partitioning
Istiophoridae
Trophic ecology
Xiphiidae
topic Feeding strategy
Food partitioning
Istiophoridae
Trophic ecology
Xiphiidae
description 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).
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000300204
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000300204
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1982-0224-20160162
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
publisher.none.fl_str_mv Sociedade Brasileira de Ictiologia
dc.source.none.fl_str_mv Neotropical Ichthyology v.15 n.3 2017
reponame:Neotropical ichthyology (Online)
instname:Sociedade Brasileira de Ictiologia (SBI)
instacron:SBI
instname_str Sociedade Brasileira de Ictiologia (SBI)
instacron_str SBI
institution SBI
reponame_str Neotropical ichthyology (Online)
collection Neotropical ichthyology (Online)
repository.name.fl_str_mv Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)
repository.mail.fl_str_mv ||neoichth@nupelia.uem.br
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