Nitrogen isotopic values across the seven species and three size classes (small, medium, large).

Lines were fitted using local polynomial regression (α = 0.5) and the line type indicates region (solid: Bonavista Corridor; dashed: Notre Dame Channel; dotted: Hawke Channel). Error bars represent the standard error (except for Notre Dame thorny skate due to low sample size). For definitions of size categories, refer to Table 3.