Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores

Detalhes bibliográficos
Autor(a) principal: Barreiros, João P.
Data de Publicação: 2002
Outros Autores: Santos, Ricardo S., Borba, Alfredo Emílio Silveira de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.3/1623
Resumo: Copyright © 2002 Société Française d’Ichtyologie.
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spelling Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the AzoresSphyraena viridensisAzoresYellowmouth BarracudaBehaviourSchoolingPredationCopyright © 2002 Société Française d’Ichtyologie.The yellowmouth barracuda is one of the most common coastal pelagic predator in the Azores archipe¬lago which probably constitutes their northernmost range in the Eastern North Atlantic. The biology, behaviour and fee¬ding ecology of this species is virtually unknown. Between 1997 and 1998, 100 individuals of S. viridensis were collected in the Azores islands. Their size ranged from 545 to 1190 mm (TL). Stomach contents were analysed and 66% of them contained food. Fish were the only prey observed. Juveniles of Trachurus picturatus were the dominant item identified, occurring in 82.2% of the stomachs containing food. Mean size of prey was correlated to the mean size of barracudas. Some 550 hours of behavioural observations were carried out. Different types of aggregations were observed with small groups and isolated individuals in winter conditions and big schools in summer, displaying several types of predatory behaviour.RÉSUMÉ: Habitudes alimentaires, comportement d’agrégation et de prédation de la bécune à bouche-jaune Sphyraena viridensis (Perciformes: Sphyraenidae) aux Açores. La bécune à bouche-jaune (Sphyraena viridensis) est l’un des prédateurs pélagiques les plus fréquents des côtes des Açores, qui représentent probablement la limite la plus septentrionale de son aire de distribution. La biologie, le comportement et l’écologie alimentaire de cette espèce sont peu connus. Entre 1997 et 1998, 100 exemplaires de S. viridensis ont été capturés aux Açores. La taille des individus variait entre 545 et 1190 mm (LT). L’analyse des contenus stomacaux a révélé que 66% des estomacs contenaient de la nourriture, composée uniquement de poissons. La bécune se nourrit surtout de juvéniles du chinchard Trachurus picturatus, observés dans 82,2% des estomacs pleins. La taille moyenne des bécunes a été comparée à celle des proies. Des observations du comportement ont été faites pendant 550 h. environ. Différent types d’agrégations ont été observés, avec des petits groupes et des individus isolés en hiver et de grands bancs en été, correspondant à différents types de comportement de prédation.Société Française d’IchtyologieRepositório da Universidade dos AçoresBarreiros, João P.Santos, Ricardo S.Borba, Alfredo Emílio Silveira de2013-02-04T11:15:33Z2002-06-302013-01-16T19:18:46Z2002-06-30T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/1623engBarreiros, J.P.; Santos, R.S.; Borba, A.E. (2002). "Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores". «Cybium –International Journal of Ichthyology», 26(2): 83-88. ISSNe 2101-0315.0399-0974 (print)info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:29:23Zoai:repositorio.uac.pt:10400.3/1623Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:24:28.694323Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores
title Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores
spellingShingle Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores
Barreiros, João P.
Sphyraena viridensis
Azores
Yellowmouth Barracuda
Behaviour
Schooling
Predation
title_short Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores
title_full Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores
title_fullStr Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores
title_full_unstemmed Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores
title_sort Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores
author Barreiros, João P.
author_facet Barreiros, João P.
Santos, Ricardo S.
Borba, Alfredo Emílio Silveira de
author_role author
author2 Santos, Ricardo S.
Borba, Alfredo Emílio Silveira de
author2_role author
author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Barreiros, João P.
Santos, Ricardo S.
Borba, Alfredo Emílio Silveira de
dc.subject.por.fl_str_mv Sphyraena viridensis
Azores
Yellowmouth Barracuda
Behaviour
Schooling
Predation
topic Sphyraena viridensis
Azores
Yellowmouth Barracuda
Behaviour
Schooling
Predation
description Copyright © 2002 Société Française d’Ichtyologie.
publishDate 2002
dc.date.none.fl_str_mv 2002-06-30
2002-06-30T00:00:00Z
2013-02-04T11:15:33Z
2013-01-16T19:18:46Z
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://hdl.handle.net/10400.3/1623
url http://hdl.handle.net/10400.3/1623
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Barreiros, J.P.; Santos, R.S.; Borba, A.E. (2002). "Food habits, schooling and predatory behaviour of the Yellowmouth Barracuda, Sphyraena viridensis Cuvier, 1829 (Perciformes: Sphyraenidae) in the Azores". «Cybium –International Journal of Ichthyology», 26(2): 83-88. ISSNe 2101-0315.
0399-0974 (print)
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Société Française d’Ichtyologie
publisher.none.fl_str_mv Société Française d’Ichtyologie
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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