Observing the Effects of the Anthropogenically-Induced pH Shift in the Upper Ocean
Project Manager and Lead Engineer: Zbigniew Kolber
Kolber’s lab is conducting experiments on the effects of high CO2 / low pH on marine phytoplankton using laboratory and sea-going versions of chemostats. These chemostats, interfaced with fast repetition rate (FRR) instruments developed at MBARI, offer unprecedented level of control and flexibility on phytoplankton growth conditions, including light, nutrients, temperature, pCO2, and pH. They are easily transportable and self-contained to allow studying of photosynthetic energy flow in natural, open ocean phytoplankton populations. They were used last year to evaluate photosynthetic responses to high CO2 levels in the North Pacific Subtropical Gyre within C-MORE (Center for Microbial Oceanography: Research and Education) project, and will be used in MBARI laboratory and field programs.