Journal
BIOFOULING
Volume 39, Issue 4, Pages 385-398Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/08927014.2023.2220275
Keywords
Biofilm; bacteria; sea turtle; biofouling; 16S rRNA; Persian Gulf
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In this study, the epibiotic bacteria on sea turtles in the Persian Gulf were investigated. The highest and lowest bacterial densities were found on green and hawksbill sea turtles, respectively. The dominant class of bacteria on all substrates was Gamma- and Alpha-proteobacteria.
In this study, epibiotic bacteria on the carapace of sea turtles at three different sites in the Persian Gulf were studied. Bacterial density counted using a Scanning Electron Microscope showed that the highest (9.4 x 10(6) +/- 0.8 x 10(6) cm(-2)) and lowest (5.3 x 10(6) +/- 0.4 x 10(6) cm(-2)) average bacterial densities were found on the green and hawksbill sea turtles, respectively. Bacterial community analysis using Illumina 16S rRNA gene sequencing showed that Gamma- and Alpha-proteobacteria were the dominant classes on all substrates. Some genera, such as Anaerolinea, were site- and substrate-specific. In general, bacterial communities on sea turtles differed from those on the non-living substrate, stones, and exhibited lower species richness and diversity compared to the latter. Despite some similarities, the majority of bacterial communities on the two sea turtles were different. This study provides baseline information about the epibiotic bacteria of sea turtles of different species.
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