OMICS is a platform that uses its analytical expertise in Molecular Biology and Bioinformatics for the taxonomic characterization of prokaryotes in marine ecosystems. In addition, this platform offers in the Molecular Biology part a "targeted metabolomics" component for the characterization of prokaryotes via the identification of carbon, sulfur and gas metabolites. This platform, supported by the "Microbiology and Environmental Biotechnology" team of the MIO, is accessible in priority to MIO staff but also to other academic or non-academic structures according to a user charter. In Molecular Biology, the platform provides equipment and protocols for the extraction, amplification, and control of nucleic acids (DNA and/or RNA) for sequencing or quantification of prokaryotic communities based on 16S ribosomal DNA. These protocols comply with the standards of the quality system to ensure optimum operation and reliability of results. In Bioinformatics, it proposes to the scientific community of the MIO or other academic or non-academic structures, expert analyses in numerical ecology through the characterization of the prokaryotic biodiversity of ecosystems via next generation sequencing, as well as training plans open to the scientific community (nationally and internationally). The Targeted Metabolomics part proposes an analysis of carbonaceous (lactate, acetate, pyruvate...), sulfurous (thiosulfate, sulfate...) and gaseous (CH4, N2O, HS-...) metabolites via chromatographic approaches.