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Organisation/Company CNRS Department Direction des ressources humaines Research Field Biological sciences Environmental science Researcher Profile First Stage Researcher (R1) Country France Application Deadline 14 Jul 2025 - 23:59 (UTC) Type of Contract Other Job Status Full-time Hours Per Week 35 Offer Starting Date 23 Jun 2025 Is the job funded through the EU Research Framework Programme? Not funded by a EU programme Is the Job related to staff position within a Research Infrastructure? No

The presence of fungi in marine environments has long been underestimated, due to methodological limitations and a lack of dedicated research. While their role in terrestrial ecosystems is better established, the importance of their biological and ecological functions in the functioning of marine ecosystems is almost totally unknown. Marine fungi are often involved in symbiotic associations (mutualistic or parasitic) with plankton (plant or animal), macroalgae and animals, and play a major role in the decomposition of organic matter. They act as antagonists to the growth of their hosts, when they are pathogenic, or are beneficial to their development if they help capture nutrients or defend against stress via their specialised metabolism. Some have the ability to effectively degrade organic matter, including the walls of algae. So, although they have recently come to be seen as key players in marine biogeochemical cycles, this group remains one of the frontiers of living organisms yet to be explored. The CNRS, a national multidisciplinary research organisation, uses scientific excellence to advance knowledge, leading to innovations that benefit society. The oceans, which cover 70% of our planet, are now under threat. In France, they are studied via several marine stations, more than fifty laboratories and major interdisciplinary research programmes (PPR and PEPR): the CNRS has therefore set itself the strategic objective of gaining a better understanding of marine environments in order to protect them more effectively. In this context, the CPJ ChamP-MER will develop a research project at the interface between Ecology and Biology based on the study of marine fungi, with the aim of exploring their ecological, evolutionary, genomic and functional specificities in order to better understand their roles and their importance in these complex environments.

The UMR Adaptation et Diversité en Milieu Marin (AD2M, CNRS EE) studies ocean species and communities, how they function, their diversity and their future. To do this, AD2M describes marine biodiversity and the evolutionary processes that underpin it, and establishes how these species interact, adapt or modulate their environments.
The UMR Biologie Intégrative des Modèles marins (LBI2M, CNRS B) studies metazoans, macroalgae and associated marine microorganisms. These offer new perspectives for understanding the evolution of biological processes, through functional and comparative genomics, metagenomics, genetics, functional and structural biology approaches. The CPJ will form part of the strategy of bringing the two UMRs closer together through a subject at the interface between ecology and biology, focusing on a little-known phylum that is nonetheless of crucial importance in the oceans. This new theme will reinforce the Roscoff SBR's role as an international leader.

The biological and ecological role of marine fungi remains largely unknown. As decomposers, these marine organisms potentially play a crucial role in the ocean nutrient cycle. They participate in numerous associations as parasites, saprophytes or mutualistic symbionts. Their study, at all scales of life, is therefore essential for understanding the functioning of the oceans and their biogeochemical cycles, the structure of marine communities and their resilience in the face of current changes. The selected candidate for the CPJ will aim to create and conduct research at the interface between ecology and biology, with a view to exploring the biological, ecological, evolutionary and functional specificities of marine fungi. He or she will therefore have to develop approaches in phylogenetics, genomics, cell biology, physiology, ecology and evolutionary biology, with the ultimate aim of better defining and understanding their ecosystemic roles.

The teaching will be carried out within the Sorbonne University teaching team. It could be part of Roscoff's professional training courses, such as the Licence Pro Bio-industries et Biotechnologies. The selected candidate for the CPJ will also be able to teach in general courses, such as the Master's degree in Marine Sciences, the Master's degree in Biodiversity, Ecology and Evolution and the Master's degree in Molecular and Cellular Biology, Parasitology and Mycology at Sorbonne University. The candidate will be expected to teach 48 hours a year.

The CNRS is developing a strong policy in favor of open science. Open science consists of making research results "as accessible as possible and closed as necessary". As such, the CNRS aims to make 100% of the texts of publications resulting from the work of its laboratories accessible , in particular through deposit in HAL. The data produced must also be made available and reusable, except for specific restrictions. In addition, the guiding principles of individual evaluation have been revised in accordance with the DORA declaration, to be more qualitative and to take into account all facets of the researcher's profession.

The dissemination of the results will be done through world-class scientific productions: publications, patents, software... In addition, the results will be communicated to various targets such as scientific communities, media, decision makers, general public, schools, etc., with an adapted calendar. Specific tools may be developed such as websites, newsletters, meetings, international symposia, summer schools and conferences.

The relationship between science and society is now recognized as a full dimension of scientific activity. The project will develop this dimension in synergy with all the partners. The resulting research work will contribute to informing public decision-making. Participatory science initiatives may be initiated with actors from the project's socio-economic and cultural eco-system.

holders of a doctorate or a PhD or equivalent degree or applicants who have gained scientific. There is no restriction on the age or nationality of applicants. All CNRS positions are accessible to people with disabilities, with special arrangements for tests made necessary by the nature of the disability.