Effect of increased CO₂ on early life survival of <i>Gadus morhua</i> from (a) Barents Sea cod (b) Western Baltic cod.

<p>Each symbol represents the value of one replicate tank. Lines depict the number of survivors according to the fitted negative exponential function.</p

Population recruitment under ocean acidification (OA) for Western Baltic cod (black line and symbols) and Barents Sea cod (grey line and symbols).

<p>Recruitment is given relative to a baseline scenario of no OA and spawning stock biomass at ICES precautionary biomass levels (B_PA) in dependence of the duration of OA-induced mortality. Two important points in larval development are highlighted. Standard deviations displayed only for selected days to improve readability.</p

Recruitment functions under baseline and under ocean acidification scenarios for (a) the Barents Sea cod and (b) the Baltic Sea cod.

<p>The baseline scenario is based on no OA and spawning stock biomass at ICES precautionary biomass levels (B_PA) in dependence of the duration of OA-induced mortality. For better visualization a different scaling on the second y-axes was chosen for the impacted recruitment.</p