Distribution of pathogenic vibrios and Vibrio spp. in the water column and sediment samples from the southern Gulf of Mexico
2021
Bernáldez-Sarabia, Johanna | Lizárraga-Partida, Marcial L. | Hernández-López, Edna L. | Gasperin-Bulbarela, Jahaziel | Licea-Navarro, Alexei F. | Guerrero, Abraham | Sánchez-Castrejón, Edna | Franco-Moreno, Andrea
This study quantified the distribution of Vibrio spp. by qPCR and pathogenic vibrio species by metagenomics, during 2 oceanographic cruises—XIXIMI-04 and XIXIMI-05 —in the southern Gulf of Mexico (GoMex). A total of 708 samples from various levels of the water column and 22 sediment samples were analyzed, according to a designed net of sampling lines. Sampling was focused on reported water masses with distinctive characteristics, to detect the presence-absence of vibrios. The results indicated that the genus Vibrio was detected along the entire water column and in sediments. Pathogenic vibrios, such as V, campbellii, V. parahaemolyticus, V. vulnificus or V. cholerae were also detected in the water column and in sediments, in both oceanographic cruises. Thus, the ecological conditions of the GoMex permit the growth of Vibrio spp. in deep water environments of the GoMex, despite continuous oil input from natural and anthropogenic sources.
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