Seasonal and Geographic Variation of Southern Blue Whale Subspecies in the Indian Ocean Samaran, Flore ; Stafford, Kathleen M. ; Branch, Trevor A. ; Gedamke, Jason ; Royer, Jean-Yves ; Dziak, Robert P. ; Guinet, Christophe Abstract Publication: PLoS ONE Pub Date: August 2013 DOI: 10.1371/journal.pone.0071561 Bibcode: 2013PLoSO...871561S