Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazil

Detalhes bibliográficos
Autor(a) principal: Albuquerque, F. V.
Data de Publicação: 2019
Outros Autores: Navia, A. F., Vaske, T. [UNESP], Crespo, O., Hazin, F. H.V.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1071/MF18352
http://hdl.handle.net/11449/187645
Resumo: Trophic relationships of large pelagic predators can determine the structure and dynamics of oceanic food webs. The feeding habits and trophic ecology of five large pelagic fish (Acanthocybium solandri, Coryphaena hippurus, Elagatis bipinnulata, Thunnus albacares and Thunnus atlanticus) in the Saint Peter and Saint Paul Archipelago were evaluated to determine whether there is a trophic-niche overlap or resource partitioning among them. Eighty prey items found in 1528 stomachs were identified and grouped into Cephalopoda, Cnidaria, Crustacea, Gastropoda, Teleostei and Tunicata. Exocoetidae and Scombridae were the main prey in the diet of Acanthocybium solandri. In C. hippurus, Cheilopogon cyanopterus and Exocoetus volitans were the most important prey items, whereas C. cyanopterus was the main prey for T. albacares. Thunnus atlanticus consumed a great proportion of invertebrate species, with shrimps of Sergestidae family being particularly important. The gastropod Cavolinia sp. was the most important prey for E. bipinnulata. The five species had a high trophic specialisation and a high trophic level (>4.4), whereas most dietary overlaps were consistently low. The most important factor for diet dissimilarity was the consumption of Exocoetidade. All species were classified as top predators with varied diets, indicating their structural and functional importance in the food web of the Archipelago.
id UNSP_eee88a74eb033ebe1b027c337fa63163
oai_identifier_str oai:repositorio.unesp.br:11449/187645
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazildietfeeding ecologyniche overlaptrophic levelTrophic relationships of large pelagic predators can determine the structure and dynamics of oceanic food webs. The feeding habits and trophic ecology of five large pelagic fish (Acanthocybium solandri, Coryphaena hippurus, Elagatis bipinnulata, Thunnus albacares and Thunnus atlanticus) in the Saint Peter and Saint Paul Archipelago were evaluated to determine whether there is a trophic-niche overlap or resource partitioning among them. Eighty prey items found in 1528 stomachs were identified and grouped into Cephalopoda, Cnidaria, Crustacea, Gastropoda, Teleostei and Tunicata. Exocoetidae and Scombridae were the main prey in the diet of Acanthocybium solandri. In C. hippurus, Cheilopogon cyanopterus and Exocoetus volitans were the most important prey items, whereas C. cyanopterus was the main prey for T. albacares. Thunnus atlanticus consumed a great proportion of invertebrate species, with shrimps of Sergestidae family being particularly important. The gastropod Cavolinia sp. was the most important prey for E. bipinnulata. The five species had a high trophic specialisation and a high trophic level (>4.4), whereas most dietary overlaps were consistently low. The most important factor for diet dissimilarity was the consumption of Exocoetidade. All species were classified as top predators with varied diets, indicating their structural and functional importance in the food web of the Archipelago.Laboratório de Oceanografia Pesqueira Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros, s/nFundación Colombiana Para la Investigación y Conservación de Tiburones y Rayas SQUALUS, Calle 10a 72-35Laboratório de Elasmobrânquios e Nécton Marinho Universidade Estadual Paulista-UNESP/CLP, Praça Infante Dom Henrique, s/nLaboratório de Elasmobrânquios e Nécton Marinho Universidade Estadual Paulista-UNESP/CLP, Praça Infante Dom Henrique, s/nUniversidade Federal Rural de PernambucoSQUALUSUniversidade Estadual Paulista (Unesp)Albuquerque, F. V.Navia, A. F.Vaske, T. [UNESP]Crespo, O.Hazin, F. H.V.2019-10-06T15:42:47Z2019-10-06T15:42:47Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1071/MF18352Marine and Freshwater Research.1323-1650http://hdl.handle.net/11449/18764510.1071/MF183522-s2.0-85065477773Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMarine and Freshwater Researchinfo:eu-repo/semantics/openAccess2021-10-23T04:16:40Zoai:repositorio.unesp.br:11449/187645Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:27:35.469167Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazil
title Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazil
spellingShingle Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazil
Albuquerque, F. V.
diet
feeding ecology
niche overlap
trophic level
title_short Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazil
title_full Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazil
title_fullStr Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazil
title_full_unstemmed Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazil
title_sort Trophic ecology of large pelagic fish in the Saint Peter and Saint Paul Archipelago, Brazil
author Albuquerque, F. V.
author_facet Albuquerque, F. V.
Navia, A. F.
Vaske, T. [UNESP]
Crespo, O.
Hazin, F. H.V.
author_role author
author2 Navia, A. F.
Vaske, T. [UNESP]
Crespo, O.
Hazin, F. H.V.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Federal Rural de Pernambuco
SQUALUS
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Albuquerque, F. V.
Navia, A. F.
Vaske, T. [UNESP]
Crespo, O.
Hazin, F. H.V.
dc.subject.por.fl_str_mv diet
feeding ecology
niche overlap
trophic level
topic diet
feeding ecology
niche overlap
trophic level
description Trophic relationships of large pelagic predators can determine the structure and dynamics of oceanic food webs. The feeding habits and trophic ecology of five large pelagic fish (Acanthocybium solandri, Coryphaena hippurus, Elagatis bipinnulata, Thunnus albacares and Thunnus atlanticus) in the Saint Peter and Saint Paul Archipelago were evaluated to determine whether there is a trophic-niche overlap or resource partitioning among them. Eighty prey items found in 1528 stomachs were identified and grouped into Cephalopoda, Cnidaria, Crustacea, Gastropoda, Teleostei and Tunicata. Exocoetidae and Scombridae were the main prey in the diet of Acanthocybium solandri. In C. hippurus, Cheilopogon cyanopterus and Exocoetus volitans were the most important prey items, whereas C. cyanopterus was the main prey for T. albacares. Thunnus atlanticus consumed a great proportion of invertebrate species, with shrimps of Sergestidae family being particularly important. The gastropod Cavolinia sp. was the most important prey for E. bipinnulata. The five species had a high trophic specialisation and a high trophic level (>4.4), whereas most dietary overlaps were consistently low. The most important factor for diet dissimilarity was the consumption of Exocoetidade. All species were classified as top predators with varied diets, indicating their structural and functional importance in the food web of the Archipelago.
publishDate 2019
dc.date.none.fl_str_mv 2019-10-06T15:42:47Z
2019-10-06T15:42:47Z
2019-01-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1071/MF18352
Marine and Freshwater Research.
1323-1650
http://hdl.handle.net/11449/187645
10.1071/MF18352
2-s2.0-85065477773
url http://dx.doi.org/10.1071/MF18352
http://hdl.handle.net/11449/187645
identifier_str_mv Marine and Freshwater Research.
1323-1650
10.1071/MF18352
2-s2.0-85065477773
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Marine and Freshwater Research
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128655435497472