Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic

Detalhes bibliográficos
Autor(a) principal: Ponte, Dário Dinis Sousa
Data de Publicação: 2016
Outros Autores: Barcelos, Luís Miguel Duarte, Santos, Cristina Sousa, Medeiros, João, Barreiros, João P.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.3/4135
Resumo: This paper describes and discusses the feeding ecology of two stingray species that occur in the Azores: Dasyatis pastinaca and Myliobatis aquila. Both are common coastal species associated with sandy, muddy and rocky bottoms, from surface waters to depths of over 200 m. The diet described here is based on the stomach content analysis from 33 specimens (23 D. pastinaca, 10 M. aquila) collected by spearfishing between June and October 2010 at three different locations along the coast of Terceira Island, Azores. Food habits of D. pastinaca consist mainly of Decapod crustaceans (with a relevance for Pachygrapsus marmoratus) followed by other groups with high representativeness: Polychaeta and Mysidacea. The diet of M. aquila consists mainly of Calliostoma lusitanicum and Stramonita haemastoma. Both species from our sample proved to be generalist predators with different feeding habits. The diet of D. pastinaca is characterized by Crustacea (81% IRI) and that of M. aquila characterized by Mollusca (82% IRI).
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spelling Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE AtlanticRégime alimentaire de Dasyatis pastinaca et Myliobatis aquila (Elasmobranchii: Myliobatiformes) des Açores, Atlantique NEMyliobatiformesFeeding HabitsStingraysDasyatidaeMyliobatidaeThis paper describes and discusses the feeding ecology of two stingray species that occur in the Azores: Dasyatis pastinaca and Myliobatis aquila. Both are common coastal species associated with sandy, muddy and rocky bottoms, from surface waters to depths of over 200 m. The diet described here is based on the stomach content analysis from 33 specimens (23 D. pastinaca, 10 M. aquila) collected by spearfishing between June and October 2010 at three different locations along the coast of Terceira Island, Azores. Food habits of D. pastinaca consist mainly of Decapod crustaceans (with a relevance for Pachygrapsus marmoratus) followed by other groups with high representativeness: Polychaeta and Mysidacea. The diet of M. aquila consists mainly of Calliostoma lusitanicum and Stramonita haemastoma. Both species from our sample proved to be generalist predators with different feeding habits. The diet of D. pastinaca is characterized by Crustacea (81% IRI) and that of M. aquila characterized by Mollusca (82% IRI).RÉSUMÉ: Cet article décrit et analyse l’écologie alimentaire de deux raies des Açores : Dasyatis pastinaca et Myliobatis aquila. Ce sont deux espèces côtières communes associées à des fonds sableux, vaseux et rocheux, se trouvant depuis les petits fonds jusqu’à plus de 200 m de profondeur. Le régime décrit ici est basé sur l’analyse du contenu stomacal de 33 spécimens (23 D. pastinaca, 10 M. aquila) récoltées en chasse sous-marine entre juin et octobre 2010 à trois endroits différents le long de la côte de l’île Terceira, aux Açores. Le régime alimentaire de D. pastinaca se compose principalement de crustacés décapodes (avec une préférence pour Pachygrapsus marmoratus), suivis par d’autres groupes fortement représentés: polychètes et mysidacés. Le régime de M. aquila se compose principalement de Calliostoma lusitanicum et Stramonita haemastoma. Les deux espèces sont des prédateurs généralistes avec des habitudes alimentaires différentes. Le régime alimentaire de D. pastinaca est caractérisé par les crustacés (81% IRI) et celui de M. aquila par les mollusques (82% IRI).Société Française d’IchtyologieRepositório da Universidade dos AçoresPonte, Dário Dinis SousaBarcelos, Luís Miguel DuarteSantos, Cristina SousaMedeiros, JoãoBarreiros, João P.2017-08-01T00:30:09Z2016-072016-10-01T15:36:53Z2016-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/4135engPonte, Dário; Barcelos, Luís; Santos, Cristina; Medeiros, João; Barreiros, J. P. (2016). Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic., "Cybium", 40(3), 209-214.0399-0974info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:32:04Zoai:repositorio.uac.pt:10400.3/4135Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:26:25.982763Repositório 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 Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic
Régime alimentaire de Dasyatis pastinaca et Myliobatis aquila (Elasmobranchii: Myliobatiformes) des Açores, Atlantique NE
title Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic
spellingShingle Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic
Ponte, Dário Dinis Sousa
Myliobatiformes
Feeding Habits
Stingrays
Dasyatidae
Myliobatidae
title_short Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic
title_full Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic
title_fullStr Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic
title_full_unstemmed Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic
title_sort Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic
author Ponte, Dário Dinis Sousa
author_facet Ponte, Dário Dinis Sousa
Barcelos, Luís Miguel Duarte
Santos, Cristina Sousa
Medeiros, João
Barreiros, João P.
author_role author
author2 Barcelos, Luís Miguel Duarte
Santos, Cristina Sousa
Medeiros, João
Barreiros, João P.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade dos Açores
dc.contributor.author.fl_str_mv Ponte, Dário Dinis Sousa
Barcelos, Luís Miguel Duarte
Santos, Cristina Sousa
Medeiros, João
Barreiros, João P.
dc.subject.por.fl_str_mv Myliobatiformes
Feeding Habits
Stingrays
Dasyatidae
Myliobatidae
topic Myliobatiformes
Feeding Habits
Stingrays
Dasyatidae
Myliobatidae
description This paper describes and discusses the feeding ecology of two stingray species that occur in the Azores: Dasyatis pastinaca and Myliobatis aquila. Both are common coastal species associated with sandy, muddy and rocky bottoms, from surface waters to depths of over 200 m. The diet described here is based on the stomach content analysis from 33 specimens (23 D. pastinaca, 10 M. aquila) collected by spearfishing between June and October 2010 at three different locations along the coast of Terceira Island, Azores. Food habits of D. pastinaca consist mainly of Decapod crustaceans (with a relevance for Pachygrapsus marmoratus) followed by other groups with high representativeness: Polychaeta and Mysidacea. The diet of M. aquila consists mainly of Calliostoma lusitanicum and Stramonita haemastoma. Both species from our sample proved to be generalist predators with different feeding habits. The diet of D. pastinaca is characterized by Crustacea (81% IRI) and that of M. aquila characterized by Mollusca (82% IRI).
publishDate 2016
dc.date.none.fl_str_mv 2016-07
2016-10-01T15:36:53Z
2016-07-01T00:00:00Z
2017-08-01T00:30:09Z
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/10400.3/4135
url http://hdl.handle.net/10400.3/4135
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ponte, Dário; Barcelos, Luís; Santos, Cristina; Medeiros, João; Barreiros, J. P. (2016). Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic., "Cybium", 40(3), 209-214.
0399-0974
dc.rights.driver.fl_str_mv info:eu-repo/semantics/embargoedAccess
eu_rights_str_mv embargoedAccess
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
repository.mail.fl_str_mv
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