Spatial and Temporal Occurrence of Blue Whales off the U.S. West Coast, with Implications for Management Irvine, Ladd M. ; Mate, Bruce R. ; Winsor, Martha H. ; Palacios, Daniel M. ; Bograd, Steven J. ; Costa, Daniel P. ; Bailey, Helen Abstract Publication: PLoS ONE Pub Date: July 2014 DOI: 10.1371/journal.pone.0102959 Bibcode: 2014PLoSO...9j2959I