The Baltic Sea could expect increased precipitation (lower salinity) and increased concentration of atmospheric CO2
over the next 100 years. In a 12-day outdoor experiment, we tested the combined effects of lower salinity and increased CO2
concentrations on a natural summer microplanktonic community. Lower salinity seemed more important than increased p
. Thus, we do not expect any dramatic effects of increased p
in combination with decreased salinity on the Baltic microplanktonic food web.