marine caves; microbiome; fish; chemical ecology, antimicrobial agents
Cecile Sabourault

UMR7272 Institut de Chimie de Nice, Université Côte d’Azur, Mohamed Mehiri
UMR7035 ECOSEAS, Université Côte d’Azur, Francesca Rossi et Simona Bussotti

UMR7093 Laboratoire d'Océanographie de Villefranche-sur-Mer, Sorbonne Université, Frédéric Gazeau

UCAGenomix (plateforme de séquençage), Université Côte d’Azur, Marie-Jeanne Arguel

Centre Commun de Microscopie Appliquée, Université Côte d’Azur, François Orange
Plateforme Technologique de Chimie, Université Côte d’Azur, Lionel Massi et Marc Gaysinski

UCA Idex Académie 4; 2 Master students; total funding 24 000€ (12 000€ for ECOSEAS)


January 1st 2020 – December 31th 2020

Marine caves have particular ecological conditions with reduced organic matter for resident organisms. The fish Apogon imberbis may have a crucial trophic role in connecting caves with external habitats as it moves outside caves at night to feed and come back to caves during the day.

The CAVOBIOME project aims at explaining the functional role of A. imberbis in Mediterranean marine caves, by characterizing i) the diversity of microbial communities associated with A. imberbis (metataxonomy), ii) the nature and origin of organic matter in faecal pellets and cave sediment (ecological tracers), iii) the chemical seascape of the cave and potential chemical cues (metabolomics), if possible in cultivated organisms, and iv) potential new antimicrobial agents.

This project will provide a better understanding of the trophic role of A. imberbis in marine caves and help to optimize management and conservation measures for these unique ecosystems.

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