Effective photosynthetic efficiency (F_v/F_m) measured on dark adapted <i>Stylophora pistillata</i> and <i>Acropora muricata</i> colonies exposed during five weeks to two pH_T conditions (pH_T 7.8 or 8.1) and two cobalt concentrations (Natural and Polluted).

<p>Stars indicate statistically significant differences (Tukey’s test, <i>p</i><0.05). Each point represents the mean ± SD (<i>n</i> = 10).</p

Growth rate (mg g^-1 d^-1) measured for <i>Stylophora pistillata</i> (a) and <i>Acropora muricata</i> (b) colonies after five weeks of incubation under two pH_T conditions (pH_T 7.8 or 8.1) and two cobalt concentrations (Natural and Polluted).

<p>Data are mean ± SD (<i>n</i> = 14).</p

Relative electron transport rate (rETR) versus irradiance (PAR) for colonies of <i>Stylophora pistillata</i> (a) and <i>Acropora muricata</i> (b) (mean ± SD, <i>n</i> = 10) exposed during five weeks to two pH_T conditions (pH_T 7.8 or 8.1) and two cobalt concentrations (Natural and Polluted).

<p>Relative electron transport rate (rETR) versus irradiance (PAR) for colonies of <i>Stylophora pistillata</i> (a) and <i>Acropora muricata</i> (b) (mean ± SD, <i>n</i> = 10) exposed during five weeks to two pH_T conditions (pH_T 7.8 or 8.1) and two cobalt concentrations (Natural and Polluted).</p

Relationships between the mean annual sea surface temperature and the growth performance index (Φ′).

<p>This index issued from the Arrhenius model was given for populations sampled in (1) Vigo, (2) Ile de Re, (3) Bay of Brest, (4) Bay of Seine, (5) Plymouth, (6) Holyhead, (7) Scarborough, (8) Campbell Town, (9) Austevoll, (10) Bessaker, (11) Bronnoysund, and (12) Traena.</p

Summary growth data.

<p>Von Bertalanffy growth parameters and index of growth performance (Φ′) were fitted from growth data of each study station (in brackets, the limits of the asymptotic 95% confidence interval). Maximum daily growth, MDG (in µm d⁻¹), was averaged on the ten highest successive increments (± standard error).</p

Variation in mean daily shell growth throughout life (black line) for each sampled population.

<p>Gray vertical bars represent the 95% confidence interval of each mean value. The numbers in each graph indicate the annual number of growth days. (1) Vigo, (2) Ile de Re, (3) Bay of Brest, (4) Bay of Seine, (5) Plymouth, (6) Holyhead, (7) Scarborough, (8) Campbell Town, (9) Austevoll, (10) Bessaker, (11) Bronnoysund, and (12) Traena.</p

Description of the 12 sampled stations.

<p>Main geographic characteristics of the study stations are detailed (latitude, longitude, annual average temperature and chlorophyll <i>a</i> concentrations) as the number of individuals used for estimating parameters of the von Bertalanffy growth model and used for estimating the mean growth trajectory and the maximum age observed in the two analyses.</p

Relationships between the mean annual sea surface temperature and the daily growth parameters.

<p>This is shown for A) the maximum numbers of growth days (MNG); and B) the variation in the number of growth days with increasing age (Ω in d y⁻¹) for populations sampled in (1) Vigo, (2) Ile de Re, (3) Bay of Brest, (4) Bay of Seine, (5) Plymouth, (6) Holyhead, (7) Scarborough, (8) Campbell Town, (9) Austevoll, (10) Bessaker, (11) Bronnoysund, and (12) Traena.</p