Size-fractionated phytoplankton pigment groups in the NW Iberian upwelling system: impact of the Iberian Poleward Current

15 páginas, 6 figuras, 3 tablas

Detalles Bibliográficos
Autores: Rodríguez Hernández, Francisco José, Garrido, J. L., Crespo, B. G., Arbones, Belén, Figueiras, F. G.
Tipo de recurso: artículo
Fecha de publicación:2006
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/50455
Acceso en línea:http://hdl.handle.net/10261/50455
Access Level:acceso abierto
Palabra clave:Phytoplankton
Pigments
Carbon biomass
Poleward current
Iberian upwelling
CHEMTAX
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spelling Size-fractionated phytoplankton pigment groups in the NW Iberian upwelling system: impact of the Iberian Poleward CurrentRodríguez Hernández, Francisco JoséGarrido, J. L.Crespo, B. G.Arbones, BelénFigueiras, F. G.PhytoplanktonPigmentsCarbon biomassPoleward currentIberian upwellingCHEMTAX15 páginas, 6 figuras, 3 tablasSize-fractionated phytoplankton was studied using pigments and carbon (C) biomass derived from light microscopy at a fixed location on the NW Iberian shelf between May 2001 and June 2002. The annual contributions of pico-, nano- and microphytoplankton to the total autotrophic C biomass were 9.7, 63 and 27.3%, respectively, with unidentified nanoflagellates (63%) and diatoms (22%) being the most important components. The CHEMTAX program was used to determine the chlorophyll a (chl a) contribution of 9 pigment groups in nano-microplankton and 8 in picoplankton. ‘Diatoms II’ (species containing chl c3), ‘haptophytes II’ (species of the genus Chrysochromulina containing chl c2-MGDG [monogalactosyl diacylglyceride] [14:0/14:0] ) and ‘chlorophytes’, represented 34, 17 and 16%, respectively, of the total chl a in the nano-microplankton fraction. The major pigment groups in the picoplankton were ‘chlorophytes’, ‘Synechococcus’ and ‘prasinophytes II’ (Order Mamiellales), which accounted for 34, 22 and 10% of the total chl a in this size class. ‘Prochlorococcus’ was traced using divinyl (DV) chl a and was present seasonally, especially during downwelling and stratified poleward conditions (October to November). The lowest chl a and autotrophic C values throughout the study (152 ± 45 ng chl a l–1 and 31 ± 13 μg C l–1) corresponded to the homogenous poleward flow or Iberian Poleward Current (IPC) from December to February. During this period the phytoplankton composition changed abruptly to a diverse pico-nanoplanktonic community that represented ~95% of the total autotrophic C biomass. ‘Chlorophytes’, ‘cryptophytes’ and ‘haptophytes II’ in the nanoplankton, and ‘chlorophytes’ and ‘Synechococcus’ in the picoplankton were the main contributers to chl a in IPC waters, as calculated by CHEMTAX.Financial support for this work came from the Spanish DYBAGA project (MAR99-1039-C02- 01) and from the EU HABILE project (EVK3-CT-2001-00063). B.G.C. was funded by a pre-doctoral I3P fellowship of CSICESF.Peer reviewedInter Research201220122006info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/50455reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.3354/meps323059info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/504552026-05-22T06:33:51Z
dc.title.none.fl_str_mv Size-fractionated phytoplankton pigment groups in the NW Iberian upwelling system: impact of the Iberian Poleward Current
title Size-fractionated phytoplankton pigment groups in the NW Iberian upwelling system: impact of the Iberian Poleward Current
spellingShingle Size-fractionated phytoplankton pigment groups in the NW Iberian upwelling system: impact of the Iberian Poleward Current
Rodríguez Hernández, Francisco José
Phytoplankton
Pigments
Carbon biomass
Poleward current
Iberian upwelling
CHEMTAX
title_short Size-fractionated phytoplankton pigment groups in the NW Iberian upwelling system: impact of the Iberian Poleward Current
title_full Size-fractionated phytoplankton pigment groups in the NW Iberian upwelling system: impact of the Iberian Poleward Current
title_fullStr Size-fractionated phytoplankton pigment groups in the NW Iberian upwelling system: impact of the Iberian Poleward Current
title_full_unstemmed Size-fractionated phytoplankton pigment groups in the NW Iberian upwelling system: impact of the Iberian Poleward Current
title_sort Size-fractionated phytoplankton pigment groups in the NW Iberian upwelling system: impact of the Iberian Poleward Current
dc.creator.none.fl_str_mv Rodríguez Hernández, Francisco José
Garrido, J. L.
Crespo, B. G.
Arbones, Belén
Figueiras, F. G.
author Rodríguez Hernández, Francisco José
author_facet Rodríguez Hernández, Francisco José
Garrido, J. L.
Crespo, B. G.
Arbones, Belén
Figueiras, F. G.
author_role author
author2 Garrido, J. L.
Crespo, B. G.
Arbones, Belén
Figueiras, F. G.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Phytoplankton
Pigments
Carbon biomass
Poleward current
Iberian upwelling
CHEMTAX
topic Phytoplankton
Pigments
Carbon biomass
Poleward current
Iberian upwelling
CHEMTAX
description 15 páginas, 6 figuras, 3 tablas
publishDate 2006
dc.date.none.fl_str_mv 2006
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/10261/50455
url http://hdl.handle.net/10261/50455
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.3354/meps323059
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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