Greening of oysters by marennine increases their market value (red label ‘fines de claires vertes’), and the pigment displays allelopathicand antimicrobial properties, which counteract pathogens (e.g., Vibrio bacteria) responsible for high mortality events in oyster mariculture, but also in larval culture of various bivalve species. Moreover, marennine-like pigments have also been observed to have antimicrobial activities. This WP will evaluate the use of Haslea and marenine to mitigate infectious disease in aquaculture operations.
