Table 4. Average percentage (%) contribution of algal species to the diet of the sea urchins D. mexicanum and E. thouarsii at Los Ahorcados (LA) and Perpetuo Socorro (PS) produced by the SIAR model using isotope values from algae.
Minimum and maximum values for each algae are shown in parentheses.
| Diadema mexicanum | Eucidaris thouarsii | |||
|---|---|---|---|---|
| Species | LA | PS | LA | PS |
| A. armata | 21 (2–37) | – | 14 (0–28) | – |
| D. dichotoma | 20 (0–37) | 52 (21–85) | 19 (0–37) | 44 (13–75) |
| L. variegata | 16 (0–32) | 9 (0–23) | 15 (0–31) | 19 (0–38) |
| Polysiphonia spp. | 20 (04–35) | 38 (3–67) | 28 (15–41) | 38 (4–66) |
| Sargassum spp. | 23 (1–43) | – | 24 (1–44) | – |