Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds

Polychaetes are important components of trophic webs in sandy beaches, mainly due to their abundance and diversity of feeding modes, acting as detritivores or primary/secondary consumers. We characterized diets of several polychaete species from intertidal sandy beaches by gut content evaluation. Di...

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Detalhes bibliográficos
Autores: Checon, Helio Herminio, Pardo, Erica Veronica [UNESP], Amaral, Antonia Cecilia Zacagnini
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2017
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositório:Repositório Institucional da UNESP
Idioma:inglês
OAI Identifier:oai:repositorio.unesp.br:11449/220863
Acesso em linha:http://dx.doi.org/10.1186/s10152-016-0469-4
http://hdl.handle.net/11449/220863
Access Level:Acceso aberto
Palavra-chave:Diatoms
Feeding guild
Gut content
Polychaete feeding
Sandy beaches
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spelling Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guildsDiatomsFeeding guildGut contentPolychaete feedingSandy beachesPolychaetes are important components of trophic webs in sandy beaches, mainly due to their abundance and diversity of feeding modes, acting as detritivores or primary/secondary consumers. We characterized diets of several polychaete species from intertidal sandy beaches by gut content evaluation. Diet breadth (Levins Index) was calculated for each species to evaluate the influence of different feeding strategies on this metric. Diatom composition was also assessed to verify the relevance of microphtyobenthic primary production to macrobenthic feeding on sandy beaches and its relationship with feeding strategies. A total of 2583 guts from 17 species were evaluated. Diet information is compared with literature, and added to taxa with previously unknown feeding habit. Diet breadths were generally low, but surface deposit feeders had the highest values. Scolelepis squamata guts were dominated by foraminfera, which may either be an specialization or local conditions. Subsurface deposit feeders usually had few items and lower breadths, highlighting the importance of organic matter to this guild. Diatoms were frequently found, and benthic were more frequently consumed than planktonic ones. The high numbers of benthic diatoms found for some species highlight the importance local food sources to sandy beach food webs.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Departamento de Biologia Animal Instituto de Biologia Universidade Estadual de Campinas, Rua Monteiro Lobato, 255Departamento de Zoologia Instituto de Biociências Universidade Estadual de São Paulo, Avenida 24Laboratório de Bentos Marinho Departamento de Biologia Animal Instituto de Biologia Universidade Estadual de Campinas, Rua Monteiro Lobato, 255Departamento de Zoologia Instituto de Biociências Universidade Estadual de São Paulo, Avenida 24CNPq: 306534/2015CAPES: 501100002322Universidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (UNESP)2022-04-28T19:06:21Z2022-04-28T19:06:21Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1186/s10152-016-0469-4Helgoland Marine Research, v. 70, n. 1, 2017.1438-38881438-387Xhttp://hdl.handle.net/11449/22086310.1186/s10152-016-0469-42-s2.0-85020611195Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengHelgoland Marine Researchinfo:eu-repo/semantics/openAccessChecon, Helio HerminioPardo, Erica Veronica [UNESP]Amaral, Antonia Cecilia Zacagnini2022-04-28T19:06:21Zoai:repositorio.unesp.br:11449/220863Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462022-04-28T19:06:21Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds
title Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds
spellingShingle Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds
Checon, Helio Herminio
Diatoms
Feeding guild
Gut content
Polychaete feeding
Sandy beaches
title_short Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds
title_full Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds
title_fullStr Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds
title_full_unstemmed Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds
title_sort Breadth and composition of polychaete diets and the importance of diatoms to species and trophic guilds
dc.creator.none.fl_str_mv Checon, Helio Herminio
Pardo, Erica Veronica [UNESP]
Amaral, Antonia Cecilia Zacagnini
author Checon, Helio Herminio
author_facet Checon, Helio Herminio
Pardo, Erica Veronica [UNESP]
Amaral, Antonia Cecilia Zacagnini
author_role author
author2 Pardo, Erica Veronica [UNESP]
Amaral, Antonia Cecilia Zacagnini
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual de Campinas (UNICAMP)
Universidade Estadual Paulista (UNESP)
dc.subject.por.fl_str_mv Diatoms
Feeding guild
Gut content
Polychaete feeding
Sandy beaches
topic Diatoms
Feeding guild
Gut content
Polychaete feeding
Sandy beaches
description Polychaetes are important components of trophic webs in sandy beaches, mainly due to their abundance and diversity of feeding modes, acting as detritivores or primary/secondary consumers. We characterized diets of several polychaete species from intertidal sandy beaches by gut content evaluation. Diet breadth (Levins Index) was calculated for each species to evaluate the influence of different feeding strategies on this metric. Diatom composition was also assessed to verify the relevance of microphtyobenthic primary production to macrobenthic feeding on sandy beaches and its relationship with feeding strategies. A total of 2583 guts from 17 species were evaluated. Diet information is compared with literature, and added to taxa with previously unknown feeding habit. Diet breadths were generally low, but surface deposit feeders had the highest values. Scolelepis squamata guts were dominated by foraminfera, which may either be an specialization or local conditions. Subsurface deposit feeders usually had few items and lower breadths, highlighting the importance of organic matter to this guild. Diatoms were frequently found, and benthic were more frequently consumed than planktonic ones. The high numbers of benthic diatoms found for some species highlight the importance local food sources to sandy beach food webs.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
2022-04-28T19:06:21Z
2022-04-28T19:06:21Z
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/10.1186/s10152-016-0469-4
Helgoland Marine Research, v. 70, n. 1, 2017.
1438-3888
1438-387X
http://hdl.handle.net/11449/220863
10.1186/s10152-016-0469-4
2-s2.0-85020611195
url http://dx.doi.org/10.1186/s10152-016-0469-4
http://hdl.handle.net/11449/220863
identifier_str_mv Helgoland Marine Research, v. 70, n. 1, 2017.
1438-3888
1438-387X
10.1186/s10152-016-0469-4
2-s2.0-85020611195
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Helgoland Marine Research
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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 repositoriounesp@unesp.br
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score 15,198674

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