marivivens niveibacter marivivens niveibacter marivivens niveibacter is a gram-negative, aerobic and non-motile bacterium from the genus of marivivens which has been isolated from seawater from a tropical mangrove forest. marivivens niveibacter scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: marivivens species: m. niveibacter binomial name marivivens niveibacterhu et al. 2018 type strain kctc 52588, mccc 1a06712, strain hslhs2