P. angustum P. aplysiae P. carnosum P. damselae P. fischeri P. frigidiphilum P. ganghwense P. halotolerans P. histaminum P. iliopiscariumal P. indicum P. leiognathi P. lipolyticum P. logei P. marinum P. phosphoreum P. profundum P. rosenbergii Photobacterium is a genus of gram-negative, oxidase positive and catalase positive bacteria in the family Vibrionaceae.

Paul et al. (2021)[1] isolated and identified multiple strains of Photobacterium from marine sponges of the Saint Martin's Island Area of the Bay of Bengal, Bangladesh.

Some of these diseases affect commercially important fish and can therefore indirectly impact human health through their consumption.

This genus has been shown to degrade the chitin of the Deep Sea Tanner Crab (Chionoecetes tanneri).

Bacterial colonies grow on the infected fish's spleen and kidney, eventually leading to mortality.

[6] Fish infected by the subspecies damselae initially experience a reduced appetite accompanied by lethargicness and ulcerative lesions along their flank and head regions.

Evidence of epizootic outbreaks gained from an increase in ulcers noted among the fish populations seem to correlate to warmer seasons, suggesting a seasonal distribution in the incidence of the disease, dependent upon the waters temperature and salinity along with a decreased resistance caused by physiological changes experienced by the host during sexual maturity.