Supplementary Figure 1 from In situ developmental responses of tropical sea urchin embryos to ocean acidification conditions at naturally elevated pCO₂ vent sites

Seawater pH_(T) measurements at control and vent sites for Dobu Island (A) and Upu-Upasina (B). Measurements are made using a seaFET pH/temperature logger that was moored at 2 - 3 m depth