cohort days_since_fert total_Alk TOC2 PCO2 CO2 bicarb CO3 pH omegaC omegaA temp sal May 2 2003 1798 402 12 1636 150 8.01 3.81 2.54 25 27.2 May 5 2099 1846 360 11 1655 180 8.06 4.42 2.95 25 30.1 May 8 2050 1764 285 8 1556 200 8.14 4.92 3.28 25 29.7 May 11 1931 1737 381 11 1583 143 8.03 3.73 2.49 25 24.9 May 13 1941 1760 419 13 1612 135 8.00 3.52 2.35 25 25.1 May 15 1869 1677 349 11 1525 142 8.05 3.76 2.50 25 23.8 May 17 1923 1717 353 11 1557 150 8.05 3.89 2.60 25 25.4 May 19 1975 1762 364 11 1596 155 8.05 3.98 2.66 25 26.3