Ocean Acidification and Aggregation Series 5: pCO2 as one of multiple stressors for Thalassiosira weissflogii - Growth Rates Version: 13 November 2014 PIs: Passow, Laws LL = 35 umol m-2s-1 HL = 65 umol m-2s-1 ambient: target pH: 8.0 to 8.6 future: target pH: 7.6 to 8.3