Table 1. Relative proportion (%), average prey mass (in g), prey energy density (ED in kJ/g), energy content (in kJ) of prey groups in diets of female Antarctic fur seals breeding at Pointe Suzanne on Kerguelen Island.
Groups ‘Other’ were assigned average diet values weighted by its percentage in the total diet for the calculation of EDDiet, and ECp. Bold values are for the total Prey group.
| Prey group | Perc.in diet (%) | Mass (g) | ED (kJ/g) | EC (kJ) | |
|---|---|---|---|---|---|
| Cephalopod | Cephalopod | 12.11 ± 3.38 | 82.67 ± 32.05 | 4.05 ± 0.10 | 347.11 ± 4.14 |
| Myctophid | 75.50 ± 7.01 | 12.19 ± 0.11 | 8.56 ± 0.25 | 112.9 ± 0.94 | |
| E. antarctica | 3.50 ± 1.50 | 3.20 ± 1.80 | 13.30 ± 2.60 | 40.97 ± 0.82 | |
| E. subaspera | 10.78 ± 1.66 | 11.80 ± 4.30 | 7.40 ± 1.00 | 88.45 ± 1.09 | |
| G. fraseri | 2.08 ± 1.11 | 5.17 ± 0.22 | 10.20 ± 3.50 | 52.63 ± 0.57 | |
| G. nicholsi | 9.11 ± 1.77 | 17.33 ± 1.95 | 9.80 ± 1.00 | 168.92 ± 0.84 | |
| G. piabilis | 14.11 ± 2.06 | 24.93 ± 0.87 | 9.50 ± 1.70 | 235.25 ± 1.36 | |
| G. sp. | 9.53 ± 1.88 | 15.81 ± 0.62 | 9.83 ± 0.90 | 155.48 ± 0.50 | |
| K. anderssoni | 0.83 ± 0.55 | 0.47 ± 0.12 | 8.10 ± 0.30 | 3.82 ± 0.03 | |
| P. bolini | 3.75 ± 0.85 | 0.87 ± 0.03 | 5.93 ± 0.38 | 5.15 ± 0.01 | |
| P. choriodon | 1.83 ± 2.27 | 0.87 ± 0.03 | 6.08 ± 0.55 | 5.28 ± 0.01 | |
| P. tenisoni | 12.11 ± 1.85 | 0.77 ± 0.20 | 6.23 ± 0.12 | 4.75 ± 0.04 | |
| Myctophidae sp. | 7.86 ± 1.52 | NA | NA | NA | |
| Nototheniid | Nototheniid | 4.44 ± 2.59 | 58.40 ± 0.00 | 5.03 ± 0.17 | 293.99 ± 0.31 |
| Other | 7.94 ± 2.54 | NA | NA | NA | |
| S. hamiltoni | 1.25 ± 0.95 | NA | NA | NA | |
| crustacean | 3.33 ± 2.5 | NA | NA | NA | |
| mollusc | 2.36 ± 1.16 | NA | NA | NA | |
| penguin | 0.69 | NA | NA | NA |