The Mediterranean Culture Collection of Villefranche (MCCV) is a collection of marine microplanktonic organisms isolated mainly from Mediterranean Sea and especially from the Bay of Villefranche, created in 2010. Those protists can be auto-, mixo- or hetero-trophic organisms. Currently, MCCV is focused on dinoflagellates and diatoms. The Mediterranean Culture Collection of Villefranche also maintains some benthic unicellular auto- or mixo-trophic strains, such as the toxic genus Ostreopsis and the associated microalgae.The MCCV is integrated into EMBRC-France (European Marine Biological Resource Center) which promotes access to biological resources and is open to the entire scientific or industrial community for research or biotechnology projects. In this context, the strains are available via this link : https://www.embrc-france.fr/en/our-services/supply-biological-resources/microorganisms/unicellular-microorganisms