New ocean, new needs: Application of pteropod shell dissolution as a biological indicator for marine resource management

Abstarct Pteropods, planktonic marine snails with a cosmopolitan distribution, are highly sensitive to changing ocean chemistry. Graphical abstract shows pteropod responses to be related to aragonite saturation state, with progressing decrease in Ω ar causing deteriorating biological conditions. Under high saturation state (Ω ar  > 1.1; zone 0), pteropods are healthy with no presence of stress or shell dissolution. With decreasing Ω ar (zone 1), pteropod stress is demonstrated through increased dissolution and reduced calcification. At Ω ar