Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores

Detalhes bibliográficos
Autor(a) principal: Barreiros, João P.
Data de Publicação: 2003
Outros Autores: Sousa, Luis, Soares, Marta S. C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.3/1616
Resumo: Copyright © 2003 aqua, International Journal of Ichthyology.
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spelling Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the AzoresStomach ContentsSeasonal VariationGrowth ChangesFeeding SrategyPrey OrientationSynodus saurusCopyright © 2003 aqua, International Journal of Ichthyology.The feeding habits of the lizardfish Synodus saurus were study in the Azores archipelago, north-eastern Atlantic. Factors examined were diet composition, prey importance, season, fish size, feeding strategy and prey orientation in the oesophagus. The stomach contents of 308 specimens were collected and analyzed between March and November 2000. Synodus saurus is common in Azorean water. Though it prefers small gregarious pelagic fish, it also feeds on epibenthic and benthic prey. We found the following prey in its diet: 9 families of teleostean fishes (Carangidae, clupeidae, Cynoglossidae, Gobiidae, Labridae, Myctophidae, Spaidae, Spyraenidae and Synodontidae), two families of crustaceans (Cymothoidae and Scyllaridae) and one of cephalopods (Loliginidae). The European pilchard, Sardina pilchardus was the commonest prey. The diet of the lizardfish varies with the season, showing the greatest diversity (given by the Shannon-Wiener index) in October. There is a significant correlation with the sea temperature. The size of the predator is not correlated to the size of its prey. However, we observed a positive correlation between the size o the positive correlation between the size of the predator and the quantity of food in its stomach. The orientation of the prey in the oesophagus may partly depend on the predator’s size. However, analysis of the stomach contents provided no information on the selection of prey.AquapressRepositório da Universidade dos AçoresBarreiros, João P.Sousa, LuisSoares, Marta S. C.2013-02-01T12:39:47Z2003-032013-01-16T18:55:19Z2003-03-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/1616engBarreiros, J.P.; Sousa, L.; Soares, M.S.C. (2003). "Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores". «aqua – Journal of Ichthyology and Aquatic Biology», 7(1): 29-38. ISSN 0945-9871.0945-9871info: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:RCAAP2022-12-20T14:29:22Zoai:repositorio.uac.pt:10400.3/1616Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:24:28.300961Repositório 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 Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores
title Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores
spellingShingle Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores
Barreiros, João P.
Stomach Contents
Seasonal Variation
Growth Changes
Feeding Srategy
Prey Orientation
Synodus saurus
title_short Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores
title_full Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores
title_fullStr Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores
title_full_unstemmed Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores
title_sort Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores
author Barreiros, João P.
author_facet Barreiros, João P.
Sousa, Luis
Soares, Marta S. C.
author_role author
author2 Sousa, Luis
Soares, Marta S. C.
author2_role author
author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Barreiros, João P.
Sousa, Luis
Soares, Marta S. C.
dc.subject.por.fl_str_mv Stomach Contents
Seasonal Variation
Growth Changes
Feeding Srategy
Prey Orientation
Synodus saurus
topic Stomach Contents
Seasonal Variation
Growth Changes
Feeding Srategy
Prey Orientation
Synodus saurus
description Copyright © 2003 aqua, International Journal of Ichthyology.
publishDate 2003
dc.date.none.fl_str_mv 2003-03
2003-03-01T00:00:00Z
2013-02-01T12:39:47Z
2013-01-16T18:55:19Z
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/10400.3/1616
url http://hdl.handle.net/10400.3/1616
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Barreiros, J.P.; Sousa, L.; Soares, M.S.C. (2003). "Feeding habits of the lizardfish Synodus saurus (Linnaeus, 1758) (Actinopterygii: Synodontidae), from the Azores". «aqua – Journal of Ichthyology and Aquatic Biology», 7(1): 29-38. ISSN 0945-9871.
0945-9871
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 Aquapress
publisher.none.fl_str_mv Aquapress
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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