Abstract

Strains of Vibrio spp. isolated from samples of water and aquatic organisms of the temperate (173 strains) and tropical (124 strains) climatic zones were phenotypically characterized. Identification, carried out on the basis of an extended analysis of phenotypic properties, made it possible to identify previously undiagnosed species. V. alginolyticus, V. parahaemolyticus, and V. splendidus prevailed in Peter the Great Bay. This is the first report on isolation of V. harveyi from a hydrobiont of the temperate waters of Peter the Great Bay. Сompared to the temperate zone, the tropical zone has a higher species diversity of vibrios. Vibrios from Peter the Great Bay were less resistant to the studied spectrum of antibiotics in comparison to the resistance of vibrios from the tropical zone. A V. vulnificus isolate from the Vietnamese waters was resistant to the maximum number of antibiotics (12 out of 15).