Die-off and survival of Pseudomonas aeruginosa in seawater.

The survival of Pseudomonas aeruginosa in the marine environment and in the laboratory under controlled conditions was investigated. The in situ studies show that the die-off of P. aeruginosa in seawater is very similar to those of Fecal Streptococci, and slower than those of Coliforms. Besides the physical processes, the action of some environmental factors on the survival of P. aeruginosa in seawater must be considered. The most important inactivating effects are produced by the visible light and the non-filtrable biotic factors.