Body distribution and source of mycosporine-like amino acids in the cyclopoid copepod Cyclops abyssorum tatricus

15 páginas, 7 figuras, 1 tabla.

Detalles Bibliográficos
Autores: Orfeo, M., Ventura, Marc, Tartarotti, B., Sommarga, Rubén
Tipo de recurso: artículo
Fecha de publicación:2011
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::0f61364a1934d297d0be32ad66f2385f
Acceso en línea:http://hdl.handle.net/10261/55248
Access Level:acceso abierto
Palabra clave:Alpine lakes
MAAs
Zooplankton
UV radiation
Stable isotopes
Trophic interactions
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spelling Body distribution and source of mycosporine-like amino acids in the cyclopoid copepod Cyclops abyssorum tatricusOrfeo, M.Ventura, MarcTartarotti, B.Sommarga, RubénAlpine lakesMAAsZooplanktonUV radiationStable isotopesTrophic interactions15 páginas, 7 figuras, 1 tabla.Mycosporine-like amino acids (MAAs) are an important family of photoprotective compounds accumulated by zooplankton, but little is known about their localization in the body or their source in natural lake populations. Here, we assessed first, the distribution of MAAs in the body of the copepod Cyclops abyssorum tatricus and second, measured stable isotope signatures (d 13 C, d 15 N) in different life stages of the copepod, as well as in seston and benthic primary producers to reveal the potential source of these compounds in a UV transparent alpine lake. The stable isotope analysis showed that this copepod was herbivorous throughout its ontogeny, from nauplius to adult. Mixing models based on the stable isotope signatures suggest that this copepod feeds predominantly on the ,20-mm size fraction of seston. These models also indicated that the probability of feeding in the upper water layers was high in the ice-cover period, but that the copepod switched to deep water layers in the ice-free period following the maximum of phytoplankton biomass. The higher MAA concentration found in C. abyssorum tatricus during the ice-free period was not connected with an enhanced availability in the food source, but seems to be the result of an active accumulation. The highest MAA content in the body of C. abyssorum tatricus females was found in eggs. Our results indicate that MAAs in this copepod are efficiently accumulated through the diet (mainly nanophytoplankton) and transferred to the nauplii as an important strategy to provide photoprotection for the first life stages.This study was supported by a grant of the Austrian Science Fund to R.S. (FWF P14153) and to B.T. (T236-B17). M.V. was partially supported by a Ramo´n and Cajal contract and by the Spanish Ministry of Science and Innovation (CGL2010-14841-BOS)Peer reviewedOxford University Press201220122011info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/55248reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1093/plankt/fbr037info:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::0f61364a1934d297d0be32ad66f2385f2026-05-22T06:33:51Z
dc.title.none.fl_str_mv Body distribution and source of mycosporine-like amino acids in the cyclopoid copepod Cyclops abyssorum tatricus
title Body distribution and source of mycosporine-like amino acids in the cyclopoid copepod Cyclops abyssorum tatricus
spellingShingle Body distribution and source of mycosporine-like amino acids in the cyclopoid copepod Cyclops abyssorum tatricus
Orfeo, M.
Alpine lakes
MAAs
Zooplankton
UV radiation
Stable isotopes
Trophic interactions
title_short Body distribution and source of mycosporine-like amino acids in the cyclopoid copepod Cyclops abyssorum tatricus
title_full Body distribution and source of mycosporine-like amino acids in the cyclopoid copepod Cyclops abyssorum tatricus
title_fullStr Body distribution and source of mycosporine-like amino acids in the cyclopoid copepod Cyclops abyssorum tatricus
title_full_unstemmed Body distribution and source of mycosporine-like amino acids in the cyclopoid copepod Cyclops abyssorum tatricus
title_sort Body distribution and source of mycosporine-like amino acids in the cyclopoid copepod Cyclops abyssorum tatricus
dc.creator.none.fl_str_mv Orfeo, M.
Ventura, Marc
Tartarotti, B.
Sommarga, Rubén
author Orfeo, M.
author_facet Orfeo, M.
Ventura, Marc
Tartarotti, B.
Sommarga, Rubén
author_role author
author2 Ventura, Marc
Tartarotti, B.
Sommarga, Rubén
author2_role author
author
author
dc.subject.none.fl_str_mv Alpine lakes
MAAs
Zooplankton
UV radiation
Stable isotopes
Trophic interactions
topic Alpine lakes
MAAs
Zooplankton
UV radiation
Stable isotopes
Trophic interactions
description 15 páginas, 7 figuras, 1 tabla.
publishDate 2011
dc.date.none.fl_str_mv 2011
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/10261/55248
url http://hdl.handle.net/10261/55248
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1093/plankt/fbr037
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford 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
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score 15,812455

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