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Deadline for applications: March 2, 2025
Within IFREMER, the French National Institute of Marine Sciences, an international reference in marine scientific research, the "Chemical Contamination of Marine Ecosystems" Unit (CCEM - https://ccem.ifremer.fr/) conducts research to characterize the oceanic chemical exposome and its impact on marine species. Its objectives are: to improve our understanding of the dynamics of chemical contaminants in the marine environment, to explore their sources and transfer to and within marine organisms, their biological effects, and to provide an assessment of the quality of the marine environment.
Involved in several French and international projects, the CCEM unit has recognized expertise in the study of hydrophobic organic contaminants and related chemicals and has state-of-the-art instrumental and laboratory equipment for trace analyses.
Context
The research activity will be carried out within the framework of the European project BIOcean5D ( https://biocean5d.org/). This multidisciplinary project aims to study marine biodiversity and its evolution in space, time and human impact on a European scale. Chemical contamination is currently one of the main stressors of marine ecosystems, especially in coastal areas exposed to multiple sources of pollutants. The study of these impacts is often carried out on specific sites with a rather limited spatial and temporal resolution. As part of BIOcean5D, sixteen sediment cores were collected from different European coasts according to the TREC sampling scheme (https://www.embl.org/about/info/trec), covering the main European marine regions and ecosystems. This unique set of samples will help to elucidate the spatial and temporal patterns of coastal pollution on a European scale. In addition, the retrospective study of the vertical profiles of contaminants in sediment cores will provide valuable information on past and present emission and exposure patterns, as well as the history of deposition over time. Finally, the results obtained on different families of contaminants will be combined with biodiversity measurements in order to explore potential correlations.
Key activities and responsibilities
You will work in task 1.2 of the BIOcean5D project (Marine biodiversity change from pre-industrial to modern times unveiled by sediment paleogenomics), led by IFREMER. You will be involved in all laboratory activities to determine the chemical profile of contaminants in the sediment cores collected:
(1) The focus will be on the analysis of two families of emerging organic contaminants, namely organophosphate esters (OPEs), flame retardants and plasticizers, and per- and polyfluoroalkyl substances (PFAS). These analyses will be performed using advanced extraction techniques (e.g. ASE, MAE) in combination with LC-MS/MS;
(2) You will also work on the analysis of inorganic contaminants (metals/metalloids, rare earth elements, stable isotopes of metals, etc.) in the same sediment cores using ICP-MS techniques;
(3) You will be expected to integrate organic and inorganic contaminant results and lead the writing of peer-reviewed publications on multi-contaminant chemical profiles in sediment cores at the European scale;
(4) You will present these results at an international conference and at project meetings and interact with other project partners to contribute to the incorporation of chemical profiles into biodiversity measurements.
Collaborations
Previous postgraduate/professional experience relevant to the position is desirable. A good knowledge of French would be an advantage.
Working conditions
(1) Access to specialized controlled atmosphere laboratories for the analysis of traces of organic and inorganic contaminants and all the necessary instrumentation to carry out the project (on-site and through collaborations), as well as supervision by qualified technical and scientific staff;
(2) Opportunities to participate in national and international conferences and workshops;
(3) Planned travel to attend project meetings and/or present results at national and international conferences.
The post-doctoral researcher will be hired by IFREMER on a temporary basis (fixed-term contract) for a fixed period of 18 months.
Anticipated start date: April 1, 2025
Ifremer1625 Route de Sainte Anne - 29280 Plouzané • 29280 Plouzané • France
L’Ifremer
Reconnu dans le monde entier comme l’un des tout premiers instituts en sciences et technologies marines, l’Ifremer s’inscrit dans une double perspective de développement durable et de science ouverte. Il mène des recherches, innove, produit des expertises pour protéger et restaurer l’océan, exploiter ses ressources de manière responsable, et partager les connaissances et les données marines afin de créer de nouvelles opportunités pour une croissance économique respectueuse du milieu marin.
Présents sur toutes les façades maritimes de l’hexagone et des outremers, ses laboratoires sont implantés sur une vingtaine de sites dans les trois grands océans : l’océan Indien, l’Atlantique et le Pacifique. Pour le compte de l’Etat, il opère la Flotte océanographique française au bénéfice de la communauté scientifique nationale. Il conçoit ses propres engins et équipements de pointe pour explorer et observer l’océan, du littoral au grand large et des abysses à l’interface avec l’atmosphère.
Ouverts sur la communauté scientifique internationale, ses 1500 chercheurs, ingénieurs et techniciens font progresser les connaissances sur l’une des dernières frontières inexplorées de notre planète ; ils contribuent à éclairer les politiques publiques et à l’innovation pour une économie bleue durable. Leur mission consiste aussi à sensibiliser le grand public aux enjeux maritimes.
L'Ifremer contribue, par ses travaux et expertises, à la connaissance des océans et de leurs ressources, à la surveillance du milieu marin et du li...
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