Title: Passive thermal refugia provided warm water for Florida manatees during the severe winter of 2009−2010
Authors: Stith, B.M.; Slone, D.H.; de Wit, M.; Edwards, H.H.; Langtimm, C.A.; Swain, E.D.; Soderqvist, L.E.; Reid, J.P.
Year: 2012
Source: Marine Ecology Progress Series 462:287-301.