Fig. 4. SCI trajectories predicted by the sinusoidal model for (a) P. depressa with 30 mm SL in the Atlantic-exposed and Cantabrian-sheltered areas, (b) P. depressa with 25 mm
SL in the Atlantic- and Cantabrian-exposed areas, (c) P. depressa with different sizes (25 mm and 35 mm SL) in the Cantabrian-sheltered area and (d) P. ulyssiponensis in the
Atlantic-exposed areas. Grey lines indicate the predicted value and shadows indicate 95% confidence bands for SCI.