| Referens | Dehn, L., G.G. Sheffield, E.H. Follmann, L.K. Duffy, D.L. Thomas and T.M. O'Hara, 2007 Feeding ecology of phocid seals and some walrus in the Alaskan and Canadian Arctic as determined by stomach contents and stable isotope analysis. Polar Biol. 30:167-181. |
| Ref. | 78072 Dehn, L., G.G. Sheffield, E.H. Follmann, L.K. Duffy, D.L. Thomas and T.M. O'Hara, 2007 |
| Sida | 173 |
| Named Used as Valid | Phoca vitulina |
| Observationsplats | |
| Distribution | Copper River Delta, Alaska, USA. |