Extended Data Fig. 1: Mesocosm experiments on OA.
From: Enhanced silica export in a future ocean triggers global diatom decline
a, Locations of in situ mesocosm experiments with the ‘Kiel Off-Shore Mesocosms for Ocean Simulations’ (KOSMOS). b, Schematic drawing of a pelagic mesocosm enclosing the natural plankton community and collecting sinking organic matter in a full-diameter sediment trap at the bottom (15 to 25 m water depth, depending on the study site). Different OA scenarios were achieved by adding filtered, CO2-saturated seawater equally distributed into the mesocosms36 at the beginning of the experiment, and usually several more times throughout the study period to maintain \({{p}}_{{{\rm{CO}}}_{2}}\) within target levels. Illustration by R. Erven and T.B. (GEOMAR), reprinted with permission from the AGU and Springer Nature, ref. 63.
