[1] Scottish Marine Inst, Scottish Assoc Marine Sci, Oban PA37 1QA, Argyll, Scotland
[2] Univ Clermont Ferrand, Lab Microorganismes Genome & Environm, UMR 6023, CNRS, F-63177 Clermont Ferrand, France
[3] Kongju Natl Univ, Dept Biol, Kong Ju 314701, Chungnam, South Korea
[4] Univ Paris 06, F-29682 Roscoff, France
[5] CNRS, UMR 7144, Stn Biol Roscoff, F-29682 Roscoff, France