Oceanic uptake of anthropogenic CO 2 causes a decrease in seawater pH and aragonite saturation state (Ω arag ), a process known as ocean acidification (OA). The western North Pacific is a hotspot for anthropogenic CO 2 sinks; however, the spatiotemporal variability of pH and Ω arag and their controlling mechanisms remain unexplored. In this study, we provide high-frequency and high-precision underway measurements of sea surfac...

Seamounts are important components of seafloor topography and have a significant influence on the biogeographic distribution of marine microorganisms. However, current studies on the biogeographic distribution patterns of microorganisms in the ocean around seamounts are still inadequate. This study investigated the bacterial and archaeal communities present in the water column at various depths around the Kocebu and M5 seamoun...