Figure 4. Annual otolith δ¹⁸O predictions per growth scenario for the 3 sub-stocks.

Predicted annual δ¹⁸O values (in white) were obtained by individually applying each of the 3 plausible otolith growth scenarios (OG1, OG2 and OG3) to monthly δ¹⁸O derived from the stock-specific temperature and salinity conditions experienced (10,000 simulations per scenario and sub-stock). In each case, the white box includes 50% of the data and the whiskers 99%, with the bold line within the box indicating the median and the circles the outlier values. For comparison, the full range of observed annual δ¹⁸O values is represented for each sub-stock (in grey, the bold line indicating the median).