Figure 3. Relationship between mean organism size and mean δ¹⁵N values for species sampled in this study.

Line represents logarithmic fit to data (δ¹⁵N = 0.4997*ln(size); r² = 0.56). Inset shows relationship between length of individual meso- and higher level predators (>25 cm) and δ¹³C () and δ¹⁵N () values. Relationship between size and δ¹³C (δ¹³C = 0.0018(size) + 15.2; r² = 0.0038) and δ¹⁵N (δ¹⁵N = 0.0011(size) − 17.9; r² = 0.0026) are not significantly different from zero (P = 0.41 and 0.31, respectively).