Seawater carbonate chemistry and prokaryotic and eukaryotic microbiome of Pacific oyster spat

Pacific oysters (Magallana gigas, a.k.a. Crassostrea gigas), the most widely farmed oysters, are under threat from climate change and emerging pathogens. In part, their resilience may be affected by their microbiome, which, in turn, may be influencedinfluencedinfluencedby ocean warming and acidification. To understand these impacts, we exposed early-development Pacific oyster spat to different temperatures (18°C and 24°C) and pCO2 levels (800, 1,600, and 2,800 μatm) in a fully crossed design for 3 weeks.