Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1679-87592017131506503 http://hdl.handle.net/11449/163452 |
Resumo: | The feeding ecology of the beach silverside (Atherinella blackburni) in the surf zone of a tropical sand beach, located in the southeastern Brazil, was accessed through the gut content analysis of 198 fish. Factors such as fish's size, season and day period were analysed to understand how these variables affect the diet composition of the species. Results show that A. blackburni is a coastal neritic fish with a broad feeding niche. Most recurrent prey were zooplanktonic crustaceans, insects and benthic molluscs, in which Copepoda crustaceans were the dominant dietary item in occurrence and abundance. A. blackburni appears to have a slight ontogenetic shift in its diet, changing from benthic molluscs to crustaceans and insects along its life cycle. The diel activity also reveals to be an important factor to the A. blackburni feeding ecology. The predominant occurrence of small fish during the morning, along with the main preys for this size class, suggests that small individuals use shallower waters as feeding grounds during the morning and, during the night, they move to deeper waters for protection against predators. |
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Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern BrazilDiel activityDietOntogenetic shiftResources partitioningSurf zoneZooplanktivorousThe feeding ecology of the beach silverside (Atherinella blackburni) in the surf zone of a tropical sand beach, located in the southeastern Brazil, was accessed through the gut content analysis of 198 fish. Factors such as fish's size, season and day period were analysed to understand how these variables affect the diet composition of the species. Results show that A. blackburni is a coastal neritic fish with a broad feeding niche. Most recurrent prey were zooplanktonic crustaceans, insects and benthic molluscs, in which Copepoda crustaceans were the dominant dietary item in occurrence and abundance. A. blackburni appears to have a slight ontogenetic shift in its diet, changing from benthic molluscs to crustaceans and insects along its life cycle. The diel activity also reveals to be an important factor to the A. blackburni feeding ecology. The predominant occurrence of small fish during the morning, along with the main preys for this size class, suggests that small individuals use shallower waters as feeding grounds during the morning and, during the night, they move to deeper waters for protection against predators.Univ Estadual Paulista, Inst Biociencias, Campus Litoral Paulista, BR-11380972 Sao Vicente, SP, BrazilUniv Estadual Paulista, Inst Biociencias, Campus Litoral Paulista, BR-11380972 Sao Vicente, SP, BrazilInst Oceanografico, Univ Sao PauloUniversidade Estadual Paulista (Unesp)Gonzalez, Julio Guazzelli [UNESP]Vaske Junior, Teodoro [UNESP]2018-11-26T17:42:05Z2018-11-26T17:42:05Z2017-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article346-355application/pdfhttp://dx.doi.org/10.1590/S1679-87592017131506503Brazilian Journal Of Oceanography. Sao Paulo: Inst Oceanografico, Univ Sao Paulo, v. 65, n. 3, p. 346-355, 2017.1679-8759http://hdl.handle.net/11449/16345210.1590/S1679-87592017131506503S1679-87592017000300346WOS:000414698600002S1679-87592017000300346.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Journal Of Oceanography0,425info:eu-repo/semantics/openAccess2023-12-18T06:19:43Zoai:repositorio.unesp.br:11449/163452Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-18T06:19:43Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern Brazil |
title |
Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern Brazil |
spellingShingle |
Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern Brazil Gonzalez, Julio Guazzelli [UNESP] Diel activity Diet Ontogenetic shift Resources partitioning Surf zone Zooplanktivorous |
title_short |
Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern Brazil |
title_full |
Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern Brazil |
title_fullStr |
Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern Brazil |
title_full_unstemmed |
Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern Brazil |
title_sort |
Feeding ecology of the beach silverside Atherinella blackburni (Atherinopsidae) in a tropical sandy beach, Southeastern Brazil |
author |
Gonzalez, Julio Guazzelli [UNESP] |
author_facet |
Gonzalez, Julio Guazzelli [UNESP] Vaske Junior, Teodoro [UNESP] |
author_role |
author |
author2 |
Vaske Junior, Teodoro [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Gonzalez, Julio Guazzelli [UNESP] Vaske Junior, Teodoro [UNESP] |
dc.subject.por.fl_str_mv |
Diel activity Diet Ontogenetic shift Resources partitioning Surf zone Zooplanktivorous |
topic |
Diel activity Diet Ontogenetic shift Resources partitioning Surf zone Zooplanktivorous |
description |
The feeding ecology of the beach silverside (Atherinella blackburni) in the surf zone of a tropical sand beach, located in the southeastern Brazil, was accessed through the gut content analysis of 198 fish. Factors such as fish's size, season and day period were analysed to understand how these variables affect the diet composition of the species. Results show that A. blackburni is a coastal neritic fish with a broad feeding niche. Most recurrent prey were zooplanktonic crustaceans, insects and benthic molluscs, in which Copepoda crustaceans were the dominant dietary item in occurrence and abundance. A. blackburni appears to have a slight ontogenetic shift in its diet, changing from benthic molluscs to crustaceans and insects along its life cycle. The diel activity also reveals to be an important factor to the A. blackburni feeding ecology. The predominant occurrence of small fish during the morning, along with the main preys for this size class, suggests that small individuals use shallower waters as feeding grounds during the morning and, during the night, they move to deeper waters for protection against predators. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-07-01 2018-11-26T17:42:05Z 2018-11-26T17:42:05Z |
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/10.1590/S1679-87592017131506503 Brazilian Journal Of Oceanography. Sao Paulo: Inst Oceanografico, Univ Sao Paulo, v. 65, n. 3, p. 346-355, 2017. 1679-8759 http://hdl.handle.net/11449/163452 10.1590/S1679-87592017131506503 S1679-87592017000300346 WOS:000414698600002 S1679-87592017000300346.pdf |
url |
http://dx.doi.org/10.1590/S1679-87592017131506503 http://hdl.handle.net/11449/163452 |
identifier_str_mv |
Brazilian Journal Of Oceanography. Sao Paulo: Inst Oceanografico, Univ Sao Paulo, v. 65, n. 3, p. 346-355, 2017. 1679-8759 10.1590/S1679-87592017131506503 S1679-87592017000300346 WOS:000414698600002 S1679-87592017000300346.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Journal Of Oceanography 0,425 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
346-355 application/pdf |
dc.publisher.none.fl_str_mv |
Inst Oceanografico, Univ Sao Paulo |
publisher.none.fl_str_mv |
Inst Oceanografico, Univ Sao Paulo |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1797790042193657856 |