Enhancement of diatom growth and phytoplankton productivity with reduced O2 availability is moderated by rising CO2

Abstract

Sun et al. investigate the effects of current ambient and potential future oxygen levels on phytoplankton growth and photosynthesis with field observations and mesocosm and lab experiments. Their results demonstrate positive effects of low O2 on phytoplankton growth, photosynthesis, and inorganic carbon acquisition at current and future high levels of CO2.