Climate change alters the haemolymph microbiome of oysters

The wellbeing of marine organisms is connected to their microbiome. Oysters are a vital food source and provide ecological services, yet little known about how climate change such as ocean acidification warming will affect We exposed the Sydney rock oyster, Saccostrea glomerata, orthogonal combinations temperature (24, 28 °C) pCO2 (400 1000 ?atm) for eight weeks used amplicon sequencing 16S rRNA (V3-V4) gene characterise bacterial community in haemolymph. Overall, elevated interacted alter microbiome oysters, with clear partitioning treatments CAP ordinations. Elevated was strongest driver species diversity richness also increased richness. Climate change, both warming, S. glomerata which may increase susceptibility oysters disease.