Table 5. Mean ER values for each area (South and Southeast) and season (Spring and Autumn).
| Group categories/Species | Areas (S vs SE) | Seasons (Spr vs Aut) | South Area (Spr vs Aut) | Southeast area (Spr vs Aut) |
|---|---|---|---|---|
| Total Cetaceans | SE = 0.73(0.23) S = 0.96(0.37) | Spr = 1.25(0.44) Aut = 0.44(0.17) | Spr = 1.49(0.59) Aut = 0.44(0.16) | Spr = 1.01(0.28) Aut = 0.44(0.18) |
| Small delphinid | SE = 0.61(0.19) S = 0.71(0.29) | Spr = 1.05(0.26) Aut = 0.26(0.09) | Spr = 1.18(0.48) Aut = 0.23(0.13) | Spr = 0.93(0.27) Aut = 0.29(0.17) |
| Large delphinid | SE = 0.09(0.05) S = 0.21(0.07) | Spr = 0.15(0.07) Aut = 0.15(0.06) | Spr = 0.25(0.13) Aut = 0.17(0.05) | Spr = 0.06(0.02) Aut = 0.12(0.11) |
| Small whale | SE = 0.003(0.001) S = 0.002(0.001) | Spr = 0.003(0.001) Aut = 0.002(0.001) | Spr = 0.003(0.001) Aut = 0.001(0.0003) | Spr = 0.003(0.001) Aut = 0.003(0.001) |
| Large whale | SE = 0.007(0.002) S = 0.002(0.001) | Spr = 0.005(0.001) Aut = 0.004(0.002) | Spr = 0.002(0.001) Aut = 0.002(0.001) | Spr = 0.008(0.002) Aut = 0.007(0.005) |
| Stenella frontalis | SE = 0.21(0.08) S = 0.24(0.18) | Spr = 0.39(0.18) Aut = 0.05(0.02) | Spr = 0.44(0.36) Aut = 0.05(0.02) | Spr = 0.36(0.11) Aut = 0.05(0.04) |
| Stenella longirostris | SE = 0.35(0.13) S = 0.09(0.08) | Spr = 0.32(0.12) Aut = 0.12(0.09) | Spr = 0.17(0.15) Aut = 0 | Spr = 0.47(0.17) Aut = 0.23(0.19) |
| Delphinus delphis* | S = 0.33(0.11) | Spr = 0.48(0.16) Aut = 0.19(0.11) | ||
| Tursiops truncatus | SE = 0.03(0.01) S = 0.07(0.02) | Spr = 0.04(0.02) Aut = 0.06(0.02) | Spr = 0.05(0.03) Aut = 0.09(0.03) | Spr = 0.04(0.02) Aut = 0.02(0.02) |
| Globicephala melas** | SE = 0.005(0.003) S = 0.13(0.05) | Spr = 0.1(0.06) Aut = 0.03(0.02) | Spr = 0.19(0.09) Aut = 0.07(0.02) | Spr = 0.006Aut = 0.004 |
| Physeter macrocephalus | SE = 0.01 (0.01) S = 0.04(0.01) | Spr = 0.026(0.01) Aut = 0.027(0.01) | Spr = 0.05(0.01) Aut = 0.03(0.02) | Spr = 0.01(0.003) Aut = 0.02(0.01) |
ER, encounter rate; (), Standard error values;
* this species only occurred in the south area;
** species with one sighting and no standard error;
S,south area; SE, southeast; Spr, spring; Aut, autumn; vs, versus to represent comparisons between areas or seasons.