Heterogeneous feeding in benthic suspension feeders: The natural diet and grazing rate of the temperate gorgonian Paramuricea clavata (Cnidaria: Octocorallia) over a year cycle

13 pages, 4 figures, 6 tables

Detalhes bibliográficos
Autores: Ribes, Marta, Coma, Rafael, Gili, Josep Maria
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:1999
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/184187
Acesso em linha:http://hdl.handle.net/10261/184187
Access Level:Acceso aberto
Palavra-chave:Paramuricea clavata
Mediterranean Sea
Gorgonians
Prey selection
Suspension feeding
Natural diet
Grazing rate
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spelling Heterogeneous feeding in benthic suspension feeders: The natural diet and grazing rate of the temperate gorgonian Paramuricea clavata (Cnidaria: Octocorallia) over a year cycleRibes, MartaComa, RafaelGili, Josep MariaParamuricea clavataMediterranean SeaGorgoniansPrey selectionSuspension feedingNatural dietGrazing rate13 pages, 4 figures, 6 tablesParamuricea clavata Risso, 1826 (Cnidaria: Octocorallia) is a characteristic species of Mediterranean benthic fauna. The natural diet and prey capture rate of the species were studied in the field at the Medes Islands (NW Mediterranean Sea) using continuous flow incubation chambers. In situ grazing rates on DOC, detrital POC, and pico-, nano- and microplankton were examined over 1 annual cycle, P. clavata capture nanoeukaryotes, phytoplankton and ciliates as well as detrital POC. Colonies ingested an annual mean of 0.19 ± 0.17 μg C μg-1 C d-1 from these food sources. No significant capture of DOC and picoplankton (heterotrophic bacteria, Prochlorococcus sp., Synechococcus sp. and picoeukaryotes) was observed. Carbon of detrital origin accounted for 86 ± 14% of the total ingested carbon and showed a marked seasonal pattern in which winter and spring were the seasons with the highest ingestion rates. Ingestion of live POC also exhibited a marked seasonal pattern, with the highest values occurring in winter. The results show that P. clavata has a broad and heterogeneous diet that ranges from 3.8 μm (nanoeukaryotes) to 700 μm (copepods). Capture of detrital and live POC showed minimum values during the summer period, which supports the hypothesis that trophic limitations may underlie the summer regression in activity of the species. The results, together with evidence from previous studies, suggest that the capture of detrital POC may be a common and important feature among gorgonian species. It was calculated that the species daily captured 1-22% of diatoms, 1-9% of nanoeukaryotes, 1-26% of dinoflagellates, 2-99% of ciliates, and 2-10% of suspended detrital POC m-3 of the water adjacent to the bottom. The estimated capture rate of the species suggests that, in littoral ecosystems, grazing by macroinvertebrates on planktonic communities and suspended detrital POC should not be disregardedPeer ReviewedInter ResearchConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201919992019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/184187reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3354/meps183125Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1841872026-05-22T06:33:51Z
dc.title.none.fl_str_mv Heterogeneous feeding in benthic suspension feeders: The natural diet and grazing rate of the temperate gorgonian Paramuricea clavata (Cnidaria: Octocorallia) over a year cycle
title Heterogeneous feeding in benthic suspension feeders: The natural diet and grazing rate of the temperate gorgonian Paramuricea clavata (Cnidaria: Octocorallia) over a year cycle
spellingShingle Heterogeneous feeding in benthic suspension feeders: The natural diet and grazing rate of the temperate gorgonian Paramuricea clavata (Cnidaria: Octocorallia) over a year cycle
Ribes, Marta
Paramuricea clavata
Mediterranean Sea
Gorgonians
Prey selection
Suspension feeding
Natural diet
Grazing rate
title_short Heterogeneous feeding in benthic suspension feeders: The natural diet and grazing rate of the temperate gorgonian Paramuricea clavata (Cnidaria: Octocorallia) over a year cycle
title_full Heterogeneous feeding in benthic suspension feeders: The natural diet and grazing rate of the temperate gorgonian Paramuricea clavata (Cnidaria: Octocorallia) over a year cycle
title_fullStr Heterogeneous feeding in benthic suspension feeders: The natural diet and grazing rate of the temperate gorgonian Paramuricea clavata (Cnidaria: Octocorallia) over a year cycle
title_full_unstemmed Heterogeneous feeding in benthic suspension feeders: The natural diet and grazing rate of the temperate gorgonian Paramuricea clavata (Cnidaria: Octocorallia) over a year cycle
title_sort Heterogeneous feeding in benthic suspension feeders: The natural diet and grazing rate of the temperate gorgonian Paramuricea clavata (Cnidaria: Octocorallia) over a year cycle
dc.creator.none.fl_str_mv Ribes, Marta
Coma, Rafael
Gili, Josep Maria
author Ribes, Marta
author_facet Ribes, Marta
Coma, Rafael
Gili, Josep Maria
author_role author
author2 Coma, Rafael
Gili, Josep Maria
author2_role author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Paramuricea clavata
Mediterranean Sea
Gorgonians
Prey selection
Suspension feeding
Natural diet
Grazing rate
topic Paramuricea clavata
Mediterranean Sea
Gorgonians
Prey selection
Suspension feeding
Natural diet
Grazing rate
description 13 pages, 4 figures, 6 tables
publishDate 1999
dc.date.none.fl_str_mv 1999
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/184187
url http://hdl.handle.net/10261/184187
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3354/meps183125
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Inter Research
publisher.none.fl_str_mv Inter Research
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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