Spatial distribution and diet of Cephalopholis fulva (Ephinephelidae) at Trindade Island, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Neotropical ichthyology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200013 |
Resumo: | In this study we analyze the population structure and diet of the coney Cephalopholis fulva at Trindade Island, Brazil, through direct observation with SCUBA diving in 11 reef sites around the Island, up to 50 m deep. Diet was based on 77 individuals collected with speargun. Mean population density and biomass were estimated at 29 individuals/100 m² and 13 kg/100 m², respectively. This species is regularly distributed along the costal environments of the Trindade Island, with no significant differences in densities and biomass detected among the different collection habitats (reef crest, reef slope, and reef plateau). However, significantly higher densities were observed micro-habitats with greater structural complexity, which may offer more shelter and food to C. fulva. Four food item groups were identified from the gut contents of C. fulva: Annelida, Crustacea, Teleostei, and Testudinata. It is the first record of predation of the green turtle Chelonia mydas hatchlings by the coney. Trindade Island seems to present the densest concentration of C. fulva in all Brazilian and Caribbean ecosystems inhabited by this species. Scarcity of competitors, predators, and fishing pressure may explain the high densities observed in the Island. |
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Spatial distribution and diet of Cephalopholis fulva (Ephinephelidae) at Trindade Island, BrazilChelonia mydasConeyFeeding ecologyGrouperOceanic islandsReef fishIn this study we analyze the population structure and diet of the coney Cephalopholis fulva at Trindade Island, Brazil, through direct observation with SCUBA diving in 11 reef sites around the Island, up to 50 m deep. Diet was based on 77 individuals collected with speargun. Mean population density and biomass were estimated at 29 individuals/100 m² and 13 kg/100 m², respectively. This species is regularly distributed along the costal environments of the Trindade Island, with no significant differences in densities and biomass detected among the different collection habitats (reef crest, reef slope, and reef plateau). However, significantly higher densities were observed micro-habitats with greater structural complexity, which may offer more shelter and food to C. fulva. Four food item groups were identified from the gut contents of C. fulva: Annelida, Crustacea, Teleostei, and Testudinata. It is the first record of predation of the green turtle Chelonia mydas hatchlings by the coney. Trindade Island seems to present the densest concentration of C. fulva in all Brazilian and Caribbean ecosystems inhabited by this species. Scarcity of competitors, predators, and fishing pressure may explain the high densities observed in the Island.Sociedade Brasileira de Ictiologia2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200013Neotropical Ichthyology v.10 n.2 2012reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/S1679-62252012005000010info:eu-repo/semantics/openAccessCoelho,Flavio do NascimentoPinheiro,Hudson TercioSantos,Robson Guimarães dosAlbuquerque,Cristiano Queiroz deMartins,Agnaldo Silvaeng2012-07-05T00:00:00Zoai:scielo:S1679-62252012000200013Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2012-07-05T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false |
dc.title.none.fl_str_mv |
Spatial distribution and diet of Cephalopholis fulva (Ephinephelidae) at Trindade Island, Brazil |
title |
Spatial distribution and diet of Cephalopholis fulva (Ephinephelidae) at Trindade Island, Brazil |
spellingShingle |
Spatial distribution and diet of Cephalopholis fulva (Ephinephelidae) at Trindade Island, Brazil Coelho,Flavio do Nascimento Chelonia mydas Coney Feeding ecology Grouper Oceanic islands Reef fish |
title_short |
Spatial distribution and diet of Cephalopholis fulva (Ephinephelidae) at Trindade Island, Brazil |
title_full |
Spatial distribution and diet of Cephalopholis fulva (Ephinephelidae) at Trindade Island, Brazil |
title_fullStr |
Spatial distribution and diet of Cephalopholis fulva (Ephinephelidae) at Trindade Island, Brazil |
title_full_unstemmed |
Spatial distribution and diet of Cephalopholis fulva (Ephinephelidae) at Trindade Island, Brazil |
title_sort |
Spatial distribution and diet of Cephalopholis fulva (Ephinephelidae) at Trindade Island, Brazil |
author |
Coelho,Flavio do Nascimento |
author_facet |
Coelho,Flavio do Nascimento Pinheiro,Hudson Tercio Santos,Robson Guimarães dos Albuquerque,Cristiano Queiroz de Martins,Agnaldo Silva |
author_role |
author |
author2 |
Pinheiro,Hudson Tercio Santos,Robson Guimarães dos Albuquerque,Cristiano Queiroz de Martins,Agnaldo Silva |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Coelho,Flavio do Nascimento Pinheiro,Hudson Tercio Santos,Robson Guimarães dos Albuquerque,Cristiano Queiroz de Martins,Agnaldo Silva |
dc.subject.por.fl_str_mv |
Chelonia mydas Coney Feeding ecology Grouper Oceanic islands Reef fish |
topic |
Chelonia mydas Coney Feeding ecology Grouper Oceanic islands Reef fish |
description |
In this study we analyze the population structure and diet of the coney Cephalopholis fulva at Trindade Island, Brazil, through direct observation with SCUBA diving in 11 reef sites around the Island, up to 50 m deep. Diet was based on 77 individuals collected with speargun. Mean population density and biomass were estimated at 29 individuals/100 m² and 13 kg/100 m², respectively. This species is regularly distributed along the costal environments of the Trindade Island, with no significant differences in densities and biomass detected among the different collection habitats (reef crest, reef slope, and reef plateau). However, significantly higher densities were observed micro-habitats with greater structural complexity, which may offer more shelter and food to C. fulva. Four food item groups were identified from the gut contents of C. fulva: Annelida, Crustacea, Teleostei, and Testudinata. It is the first record of predation of the green turtle Chelonia mydas hatchlings by the coney. Trindade Island seems to present the densest concentration of C. fulva in all Brazilian and Caribbean ecosystems inhabited by this species. Scarcity of competitors, predators, and fishing pressure may explain the high densities observed in the Island. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252012000200013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1679-62252012005000010 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
dc.source.none.fl_str_mv |
Neotropical Ichthyology v.10 n.2 2012 reponame:Neotropical ichthyology (Online) instname:Sociedade Brasileira de Ictiologia (SBI) instacron:SBI |
instname_str |
Sociedade Brasileira de Ictiologia (SBI) |
instacron_str |
SBI |
institution |
SBI |
reponame_str |
Neotropical ichthyology (Online) |
collection |
Neotropical ichthyology (Online) |
repository.name.fl_str_mv |
Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI) |
repository.mail.fl_str_mv |
||neoichth@nupelia.uem.br |
_version_ |
1752122180487872512 |