Colwellia psychrotropica Bowman et al. 1998 Bowman J.P. Gosink J.J. McCammon S.A. Lewis T.L. Nichols D.S. Nichols P.D. Skerratt J.H. Staley J.T. McMeekin T.A. Colwellia demingiae sp. nov., Colwellia hornerae sp. nov., Colwellia rossensis sp. nov. and Colwellia psychrotropica sp. nov.: psychrophilic Antarctic species with the ability to synthesize docosahexaenoic acid (22:omega63) 1998 48 4 1171 1180 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-48-4-1171