Stable Isotope Models Predict Foraging Habitat of Northern Fur Seals (Callorhinus ursinus) in Alaska Zeppelin, T. K. ; Johnson, D. S. ; Kuhn, C. E. ; Iverson, S. J. ; Ream, R. R. Abstract Publication: PLoS ONE Pub Date: June 2015 DOI: 10.1371/journal.pone.0127615 Bibcode: 2015PLoSO..1027615Z