Herbivory in small carnivores: benthic hydroids as an example
6 pages, 3 figures
| Autores: | , , , , |
|---|---|
| Tipo de documento: | artigo |
| Data de publicação: | 2008 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositório: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:dnet:digitalcsic_::255bea0fe2e46ef47f5ffad4ac2e9eaa |
| Acesso em linha: | http://hdl.handle.net/10261/44944 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Benthic hydroids Feeding Intracellular digestion Assimilation Herbivory |
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Herbivory in small carnivores: benthic hydroids as an exampleGili, Josep MariaDuró, AlíciaGarcía-Valero, JosepGasol, Josep M.Rossi, SergioBenthic hydroidsFeedingIntracellular digestionAssimilationHerbivory6 pages, 3 figuresPrevious evidence has shown that benthic hydroids capture all kinds of available prey and the only known constraint was prey size. Among the prey captured are phytoplankton cells but it is not known whether they are digested and assimilated. To test the hypothesis that benthic hydroids assimilate phytoplankton cells, a series of feeding experiments was carried out with the Mediterranean species Eudendrium racemosum. Ingestion rates and assimilation efficiency were determined by analysing the 14C incorporated from a labelled population of the diatom species Thalassiosira weissflogii. Eudendrium racemosum fed on T. weissflogii, after a period of starvation, and with the diatoms as the sole food item. In the presence of approximately 15,000 diatoms ml21, Eudendrium fed at rates ranging from 16 to 55 diatoms polyp21 hour21. Accumulation of radioactivity in the hydrocaulus and the polyps of the hydroids were observed. A maximum ingestion of 31.6 diatoms per mgC of polyp (i.e. 175 diatoms per polyp) was observed in the experiments. Most of the diatom 14C ingested would have ended up in the Eudendrium tissue (efficiency 94%), and it was expected that a certain percentage would have been respired by the polyps. These data show that Eudendrium feed on phytoplankton, which can satisfy almost 100% of their energy demand when this type of food is sufficiently abundantPeer reviewedCambridge University Press201220122008info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/44944reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1017/S0025315408003214info:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::255bea0fe2e46ef47f5ffad4ac2e9eaa2026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Herbivory in small carnivores: benthic hydroids as an example |
| title |
Herbivory in small carnivores: benthic hydroids as an example |
| spellingShingle |
Herbivory in small carnivores: benthic hydroids as an example Gili, Josep Maria Benthic hydroids Feeding Intracellular digestion Assimilation Herbivory |
| title_short |
Herbivory in small carnivores: benthic hydroids as an example |
| title_full |
Herbivory in small carnivores: benthic hydroids as an example |
| title_fullStr |
Herbivory in small carnivores: benthic hydroids as an example |
| title_full_unstemmed |
Herbivory in small carnivores: benthic hydroids as an example |
| title_sort |
Herbivory in small carnivores: benthic hydroids as an example |
| dc.creator.none.fl_str_mv |
Gili, Josep Maria Duró, Alícia García-Valero, Josep Gasol, Josep M. Rossi, Sergio |
| author |
Gili, Josep Maria |
| author_facet |
Gili, Josep Maria Duró, Alícia García-Valero, Josep Gasol, Josep M. Rossi, Sergio |
| author_role |
author |
| author2 |
Duró, Alícia García-Valero, Josep Gasol, Josep M. Rossi, Sergio |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
Benthic hydroids Feeding Intracellular digestion Assimilation Herbivory |
| topic |
Benthic hydroids Feeding Intracellular digestion Assimilation Herbivory |
| description |
6 pages, 3 figures |
| publishDate |
2008 |
| dc.date.none.fl_str_mv |
2008 2012 2012 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/44944 |
| url |
http://hdl.handle.net/10261/44944 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
https://doi.org/10.1017/S0025315408003214 |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Cambridge University Press |
| publisher.none.fl_str_mv |
Cambridge University Press |
| 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 |
|
| _version_ |
1869412709012865024 |
| score |
15.811543 |