aeromonas fluvialis aeromonas fluvialis aeromonas fluvialis is a gram-negative, oxidase- and catalase-positive, facultatively anaerobic, non-spore-forming bacterium of the genus aeromonas isolated from water from the muga river in girona in northeastern spain. aeromonas fluvialis scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: aeromonadales family: aeromonadaceae genus: aeromonas species: a. fluvialis binomial name aeromonas fluvialisalperi et al. 2010 type strain cect 7401, cip 110205, lmg 24681, strain 717