marinobacter pelagius marinobacter pelagius marinobacter pelagius is a gram-negative, aerobic, moderately halophilic and neutrophilic bacterium from the genus of marinobacter which has been isolated from seawater around zhoushan in china. marinobacter pelagius can be used to produce gold nanoparticles. marinobacter pelagius scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: alteromonadales family: alteromonadaceae genus: marinobacter species: m. pelagiusxu et al. 2008 binomial name marinobacter pelagius type strain cgmcc 1.6775, hs225, jcm 14804