PseudoalteromonasAlteromonasUlvaGammaproteobacteriaLaminariaGram-Negative Aerobic BacteriaSeawaterCorticoviridaeAntarctic RegionsRNA, Ribosomal, 16SDNA, RibosomalDNA, BacterialBiofoulingPhylogenyWater MicrobiologyPoriferaMarine BiologySequence Analysis, DNAMolecular Sequence DataBase CompositionKelpExtreme ColdMicrobial InteractionsArctic RegionsBivalvia