aeromonas bestiarum aeromonas bestiarum aeromonas bestiarum is a gram-negative bacterium of the genus aeromonas which can cause infection in carp (cyprinus carpio). a. bestiarum is a growing problem in poland in commercial carp farms. aeromonas bestiarum scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: aeromonadales family: aeromonadaceae genus: aeromonas species: a. bestiarum binomial name aeromonas bestiarumali et al. 1996 type strain altwegg a307, atcc 51108, atcc 700183, bcrc 17451, ccm 4707, ccrc 17451, ccug 41859, cdc 9533-76, cect 4227, cip 74.30, cip 7430, dsm 13956, lmg 12157, lmg 13444, lmg 3751, ncimb 13586, popoff 218