Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil

Detalhes bibliográficos
Autor(a) principal: Gianeti, Michel Donato
Data de Publicação: 2019
Outros Autores: Yokota, Leandro [UNESP], Lessa, Rosangela Paula Teixeira, Dias, June Ferraz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
DOI: 10.1017/S0025315419000912
Texto Completo: http://dx.doi.org/10.1017/S0025315419000912
http://hdl.handle.net/11449/221415
Resumo: This study investigated the diet of longnose stingray Hypanus guttatus in the tropical waters of north-eastern Brazil. Samples were obtained from monthly sampling of artisanal fisheries from August 2007 to July 2008. A total of 258 specimens were examined, 127 females and 131 males, and stomach contents analysis suggested H. guttatus to be a generalist and opportunistic predator feeding on the most available prey in the environment. There was no significant difference in the diet composition of males and females, or between seasons. However, an ontogenetic dietary shift was observed with larger individuals having an increased proportion of molluscs in the diet, whilst smaller individuals predated primarily on small crustaceans.
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spelling Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of BrazilDietHypanus guttatusnorth-eastern BrazilThis study investigated the diet of longnose stingray Hypanus guttatus in the tropical waters of north-eastern Brazil. Samples were obtained from monthly sampling of artisanal fisheries from August 2007 to July 2008. A total of 258 specimens were examined, 127 females and 131 males, and stomach contents analysis suggested H. guttatus to be a generalist and opportunistic predator feeding on the most available prey in the environment. There was no significant difference in the diet composition of males and females, or between seasons. However, an ontogenetic dietary shift was observed with larger individuals having an increased proportion of molluscs in the diet, whilst smaller individuals predated primarily on small crustaceans.Laboratório de Ecologia da Reprodução e Do Recrutamento de Organismos Marinhos Departamento de Oceanografia Biológica Instituto Oceanográfico Universidade de São Paulo (IOUSP)- Praça Do Oceanográfico, 191, ButantanLaboratório de Ictiologia Museu de Zoologia Universidade de São Paulo, Av. Nazaré, 481 - IpirangaDepartamento de Zoologia Instituto de Biociências Universidade Estadual Paulista, Av. 24-A, 1515, Bela VistaDepartamento de Pesca e Aquicultura (DEPAq) Universidade Federal Rural de Pernambuco (UFRPE)- Dois IrmãosDepartamento de Zoologia Instituto de Biociências Universidade Estadual Paulista, Av. 24-A, 1515, Bela VistaUniversidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)Universidade Federal Rural de Pernambuco (UFRPE)- Dois IrmãosGianeti, Michel DonatoYokota, Leandro [UNESP]Lessa, Rosangela Paula TeixeiraDias, June Ferraz2022-04-28T19:28:25Z2022-04-28T19:28:25Z2019-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1869-1877http://dx.doi.org/10.1017/S0025315419000912Journal of the Marine Biological Association of the United Kingdom, v. 99, n. 8, p. 1869-1877, 2019.1469-77690025-3154http://hdl.handle.net/11449/22141510.1017/S00253154190009122-s2.0-85076801163Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of the Marine Biological Association of the United Kingdominfo:eu-repo/semantics/openAccess2022-04-28T19:28:25Zoai:repositorio.unesp.br:11449/221415Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:46:24.491512Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
title Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
spellingShingle Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
Gianeti, Michel Donato
Diet
Hypanus guttatus
north-eastern Brazil
Gianeti, Michel Donato
Diet
Hypanus guttatus
north-eastern Brazil
title_short Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
title_full Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
title_fullStr Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
title_full_unstemmed Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
title_sort Diet of longnose stingray Hypanus guttatus (Myliobatiformes: Dasyatidae) in tropical coastal waters of Brazil
author Gianeti, Michel Donato
author_facet Gianeti, Michel Donato
Gianeti, Michel Donato
Yokota, Leandro [UNESP]
Lessa, Rosangela Paula Teixeira
Dias, June Ferraz
Yokota, Leandro [UNESP]
Lessa, Rosangela Paula Teixeira
Dias, June Ferraz
author_role author
author2 Yokota, Leandro [UNESP]
Lessa, Rosangela Paula Teixeira
Dias, June Ferraz
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade de São Paulo (USP)
Universidade Estadual Paulista (UNESP)
Universidade Federal Rural de Pernambuco (UFRPE)- Dois Irmãos
dc.contributor.author.fl_str_mv Gianeti, Michel Donato
Yokota, Leandro [UNESP]
Lessa, Rosangela Paula Teixeira
Dias, June Ferraz
dc.subject.por.fl_str_mv Diet
Hypanus guttatus
north-eastern Brazil
topic Diet
Hypanus guttatus
north-eastern Brazil
description This study investigated the diet of longnose stingray Hypanus guttatus in the tropical waters of north-eastern Brazil. Samples were obtained from monthly sampling of artisanal fisheries from August 2007 to July 2008. A total of 258 specimens were examined, 127 females and 131 males, and stomach contents analysis suggested H. guttatus to be a generalist and opportunistic predator feeding on the most available prey in the environment. There was no significant difference in the diet composition of males and females, or between seasons. However, an ontogenetic dietary shift was observed with larger individuals having an increased proportion of molluscs in the diet, whilst smaller individuals predated primarily on small crustaceans.
publishDate 2019
dc.date.none.fl_str_mv 2019-12-01
2022-04-28T19:28:25Z
2022-04-28T19:28:25Z
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/10.1017/S0025315419000912
Journal of the Marine Biological Association of the United Kingdom, v. 99, n. 8, p. 1869-1877, 2019.
1469-7769
0025-3154
http://hdl.handle.net/11449/221415
10.1017/S0025315419000912
2-s2.0-85076801163
url http://dx.doi.org/10.1017/S0025315419000912
http://hdl.handle.net/11449/221415
identifier_str_mv Journal of the Marine Biological Association of the United Kingdom, v. 99, n. 8, p. 1869-1877, 2019.
1469-7769
0025-3154
10.1017/S0025315419000912
2-s2.0-85076801163
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of the Marine Biological Association of the United Kingdom
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1869-1877
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_ 1822182274206007296
dc.identifier.doi.none.fl_str_mv 10.1017/S0025315419000912

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