colwellia aquaemaris colwellia aquaemaris colwellia aquaemaris is a gram-negative, heterotrophic and facultatively anaerobic bacterium from the genus of colwellia which has been isolated from the fish cynoglossus semilaevis from a recirculating mariculture system in tianjin in china. colwellia aquaemaris scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: colwelliaceae genus: colwellia species: c. agarivorans binomial name colwellia agarivoransliu et al. 2014 type strain cgmcc 1.12165, jcm 18479, strain s1