University of Maine Parker Gassett Ocean acidification refers to a decrease in the pH of seawater due to the absorption of CO2 from the atmosphere. An increase in atmospheric CO2 levels results in an increase of CO2 absorption and more acidic water. Shellfish, which contribute $56.0 million to the economy and 1,500 jobs for Maine … Continue reading DV-19-07 Shell Day: Marine Monitoring Blitz