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In-Situ Variability of DOM in Relation with Biogeochemical and Physical Parameters in December 2017 in Laucala Bay (Fiji Islands) after a Strong Rain Event ArchiMer
Koliyavu, Timoci; Martias, Chloe; Singh, Awnesh; Mounier, Stéphane; Gérard, Philippe; Dupouy, Cecile.
Heavy rain events alter the biogeochemical outflows, affects water quality and ecosystem health within the coastal waters of small Pacific Islands. We characterized snapshots of the optical fingerprints of dissolved organic matter (DOM) sources together with the select nutrients, biogeochemical and physical variables for 10 stations in December 2017 in Laucala Bay, Fiji Islands. DOM absorption coefficients and fluorescence components were determined via spectrofluorometry and Parallel Factor Analysis identifying four components: Type M, two terrestrial (humic, fulvic) components, and a protein component linked to marine biological activity. Associations of DOM together with climate variables and the other tested variables were determined via principal...
Tipo: Text Palavras-chave: DOM absorption; Fluorescence; Biogeochemistry; PARAFAC; EEM spectra; Autochthonous; Allochthonous; Chlorophyll; CDOM; FDOM.
Ano: 2021 URL: https://archimer.ifremer.fr/doc/00682/79372/81889.pdf
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A preliminary study of a DGT-labile trace metals distribution in the stratified Krka River estuary (Croatia) ArchiMer
Blataric, Ana-marija; Garnier, Cedric; Omanovic, Dario; Lenoble, Véronique; Cukrov, Neven; Mounier, Stéphane; Gonzalez, Jean-louis; Pizeta, Ivanka.
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Ano: 2009 URL: http://archimer.ifremer.fr/doc/00077/18854/16427.pdf
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TREMOR ( Volet 1) Transfert des éléments traces métalliques par la matière organique dissoute colorée ArchiMer
Dupouy, Cécile; Juillot, Farid; Lemonnier, Hugues; Mounier, Stéphane; Boher, Laura; Bessard, Marie; Jamet, Léocadie; Gérard, Philippe; Gunkel-grillon, Peggy.
La particularité des sols côtiers de Nouvelle-Calédonie est d’être essentiellement formés de latérites, exploitées depuis des décennies pour leurs teneurs en éléments traces métalliques (ETM) tels que le nickel, le chrome, le cobalt ou le manganèse. De par sa forte productivité en matière organique, la mangrove constitue un réservoir important de matière organique dissoute (MOD) qui peut être transportée vers l’Océan sur de grandes distances. Les observations menées soulèvent la question du rôle puit/source que joue la mangrove vis-à-vis de la dynamique des ETM à l’interface Terre-Mer à l’aval des massifs miniers de Nouvelle-Calédonie. Le projet TREMOR a ainsi, pour objectif d’apporter des éléments de réponses à cette question en s’appuyant sur les...
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Ano: 2020 URL: https://archimer.ifremer.fr/doc/00630/74206/73834.pdf
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