Time series of (a) photochemical efficiency (Fv/Fm) (b) calcification rates, (c) pH, (d) DIC, (e) , (f) [Ca2+] and (g)
Ω for T. reniformis in Bremer Bay. Values represent mean ± 1 s.d for calcifying fluid (cf) parameters (n = 5 per site) and mean ± 1 s.e. for calcification rates and Fv/Fm (n = 14 at Site 1, n = 21 at site 2). No shading denotes summer, light shading denotes winter, and dark shading denotes El Niño winter cooling.