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dc.contributor.authorPiedracoba, Silvia-
dc.contributor.authorNieto-Cid, Mar-
dc.contributor.authorTeixeira, I. G.-
dc.contributor.authorGarrido, J. L.-
dc.contributor.authorÁlvarez-Salgado, Xosé Antón-
dc.contributor.authorRosón, Gabriel-
dc.contributor.authorCastro, Carmen G.-
dc.contributor.authorPérez, Fiz F.-
dc.identifier.citationMarine Ecology Progress Series 353: 41-53 (2008)es_ES
dc.description13 páginas, 6 tablas, 5 figurases_ES
dc.description.abstractThe metabolism of the pelagic ecosystem of the Ría de Vigo (NW Spain) was studied during July and September 2002. Measurements of primary production (Pg) and respiration (R) were performed at a single site twice a week at 5 depths, from surface to bottom. In July, the net community production (NCP = Pg – R) decreased along with Pg, from 0.73 under strong upwelling to 0.14 g N m–2 d–1 under weak upwelling conditions. In September, NCP increased from –0.10 under downwelling to 0.00 g N m–2 d–1 under weak upwelling conditions. Microzooplankton grazing and sedimentation rates were also measured. The high grazing rates observed (58 to 115% of Pg) raises doubts about the previously assumed efficiency of the ría to transfer phytoplankton biomass directly to the metazoans. Our results suggest that phytoplankton biomass is probably imported from the shelf to support the metabolic requirements of the microheterotrophs in September. A comparison of the metabolic state of the ría derived from these measurements with the geochemical budget generated different results in some cases. Both approaches were complementary and their simultaneous application may offer a better understanding of ecosystem functioning.es_ES
dc.description.sponsorshipFinancial support for this work came from the Spanish Ministerio de Educación y Ciencia (MEC) grant nos. REN2000-0880-C02-01 and -02 MAR, and the Xunta de Galicia grant no. PGIDT01MAR40201PN. S.P. and M.N.-C. received MEC fellowships and CSIC-I3P postgraduate fellowships and I.G.T. received a predoctoral fellowship from the Portuguese FCT. This is contribution no. 41 of the Unidad Asociada GOFUVI-CSIC.es_ES
dc.publisherInter Researches_ES
dc.subjectPrimary productiones_ES
dc.subjectRías Baixas (NW Spain)es_ES
dc.titlePhysical-biological coupling in the coastal upwelling system of the Ría de Vigo (NW Spain). II: In vitro approaches_ES
dc.description.peerreviewedPeer reviewedes_ES
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