<i>Macoma balthica</i>: Ocean acidification effects on fertilization and embryogenesis.

<p>(a) fertilization success, (b) hatching success, and (c) size of larvae that have developed a shell after 3 days, reared at three pH conditions: control (∼pH_8.1), ∼pH_7.8 and ∼pH_7.5. Level of replication: n = 5 for fertilization success, n = 3 for hatching success and size. Presented error bars are standard errors.