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dc.contributor.authorAbdou, Melinaes_ES
dc.contributor.authorGil-Díaz, T.es_ES
dc.contributor.authorSchäfer, Jörges_ES
dc.contributor.authorCatrouillet, Charlottees_ES
dc.contributor.authorBossy, Cécilees_ES
dc.contributor.authorDutruch, L.es_ES
dc.contributor.authorBlanc, Gérardes_ES
dc.contributor.authorCobelo-García, A.es_ES
dc.contributor.authorMassa, F.es_ES
dc.contributor.authorCastellano, M.es_ES
dc.contributor.authorMagi, Emanuelees_ES
dc.contributor.authorPovero, Paoloes_ES
dc.contributor.authorTercier-Waeber, M. L.es_ES
dc.date.accessioned2020-05-14T10:57:37Z-
dc.date.available2020-05-14T10:57:37Z-
dc.date.issued2020-
dc.identifier.citationMarine Chemistry 222: 103782 (2020)es_ES
dc.identifier.issn0304-4203-
dc.identifier.urihttp://hdl.handle.net/10261/211375-
dc.description15 pages, 1 table, 4 figureses_ES
dc.description.abstractShort-term variations of Pt concentrations and primary production indicators were compared in three contrasting coastal sites during spring bloom: (i) the Gironde Estuary mouth (SW France), (ii) the semi-enclosed Arcachon Bay (SW France), and (iii) the urbanized Genoa Harbor (NW Italy). At each site, surface seawater sampling and physical-chemical measurements were combined to study diel cycles (over 25 h) of dissolved Pt concentrations in seawater (PtD) and master variables reflecting primary production activity (chlorophyll-a, phaeopigments, and particulate organic carbon, POC concentrations). Plankton nets were used in all sites, providing for the first time plankton Pt concentrations (PtPK) over a whole diel cycle (Gironde Estuary mouth) and spot sampling (Arcachon Bay and Genoa Harbor) in the coastal zone. Bivalves (wild oysters or mussels), reflecting organisms at higher trophic levels, were also collected at all sites. The POC/Chl-a ratios in the collected particulate material suggested high contribution of phytoplankton to the particulate matter in the productive Gironde Estuary mouth. At this site, phytoplankton activity partly controlled Pt cycling and particle/dissolved Pt partitioning during daytime. During the night, zooplankton grazing may release Pt into the dissolved phase. These processes are partly masked by external factors such as tide or local Pt sources, especially in more confined and/or urbanized coastal water bodies such as the Arcachon Bay and the Genoa Harbor. Platinum levels in plankton and bivalves from these contrasting sites along the Atlantic and Mediterranean coasts tended to reflect the general Pt levels in seawater. These results clearly suggest that (i) Pt contamination of coastal waters and marine organisms has become a common feature in urbanized sites and (ii) Pt transfer to the marine food chain starts at the basic level of primary producers. By concentrating Pt (Bioconcentration Factor: BCF ~ 104), phytoplankton may serve as a biomonitor to assess Pt contamination in coastal environmentses_ES
dc.description.sponsorshipThis work has benefited from the financial support of the FEDER Aquitaine-1999-Z0061, the COST Action TD1407, and the EU FP7 Ocean 2013.2 Project SCHeMA (Project-Grant Agreement 614002), which are gratefully acknowledgedes_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relation.isversionofPostprintes_ES
dc.rightsopenAccessen_EN
dc.subjectTechnology critical elementes_ES
dc.subjectSeawateres_ES
dc.subjectPhytoplanktones_ES
dc.subjectBioconcentrationes_ES
dc.titleShort-term variations of platinum concentrations in contrasting coastal environments: The role of primary producerses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1016/j.marchem.2020.103782-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttps://doi.org/10.1016/j.marchem.2020.103782es_ES
dc.embargo.terms2022-05-20es_ES
dc.relation.csices_ES
oprm.item.hasRevisionno ko 0 false*
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
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