Average experimental conditions (± standard deviation) for each tank.

The temperature is the average taken from the two Tidbits within each tank (n>196000). Water samples for total pH (pHT), TA, DIC, and Ω were collected weekly from each tank (n = 20) and the average values from measured and calculated carbonate system parameters are shown here. The specimen counts are the number of specimens in each tank at the start of the experiment, with deaths (for all species) and missing/lost specimens (for scallops) in parentheses. Note that 22 scallops were removed halfway through the experiment (on April 14, 2022).