Isotopic compositions of copper and zinc in plankton from the Mediterranean Sea (MERITE-HIPPOCAMPE campaign): Tracing trophic transfer and geogenic inputs
| Autor: | Sandrine Chifflet, Nicolas Briant, Rémi Freydier, Daniel F. Araújo, Marianne Quéméneur, Hana Zouch, Amel Bellaaj-Zouari, François Carlotti, Marc Tedetti |
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| Přispěvatelé: | Institut méditerranéen d'océanologie (MIO), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS), Contamination Chimique des Ecosystèmes Marins (CCEM), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Hydrosciences Montpellier (HSM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Institut National des Sciences et Technologies de la Mer [Salammbô] (INSTM) |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Food Chain
[SDE.MCG]Environmental Sciences/Global Changes Aquatic Science [CHIM.INOR]Chemical Sciences/Inorganic chemistry Plankton Oceanography Pollution Planktonic food webs Zinc [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [CHIM.ANAL]Chemical Sciences/Analytical chemistry Mediterranean Sea Cu and Zn isotopes Geogenic inputs Copper Environmental Monitoring |
| Zdroj: | Marine Pollution Bulletin Marine Pollution Bulletin, 2022, 185 (Part A), pp.114315. ⟨10.1016/j.marpolbul.2022.114315⟩ |
| ISSN: | 0025-326X |
| Popis: | International audience; This study uses Cu and Zn isotopic compositions as proxies of sources and metal transfers in the planktonic food webs from the Mediterranean Sea. Plankton was collected in spring 2019 in the deep chlorophyll maximum (DCM) along a North-South transect including coastal and offshore zones (MERITE-HIPPOCAMPE campaign). δ65Cu and δ66Zn were determined on four planktonic size fractions from 60 to 2000 μm. Combined δ65Cu and δ66Zn with geochemical tracers (Ti, particulate organic phosphorus) showed that geogenic particles were ubiquitous with plankton assemblages. The δ15N ecological tracer showed that planktonic food web was enriched in heavy isotopes of Cu and Zn in the higher trophic levels. δ65Cu were correlated with picoplankton in the offshore zone, and with zooplankton in the southern coastal zone. Firmicutes bacteria were found correlated with δ66Zn in northern and southern coastal zones suggesting decomposition of particulate matter at the DCM. These findings suggest that biogeochemical process may impact Cu and Zn isotopy in the planktonic community. |
| Databáze: | OpenAIRE |
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