Blue holes are solution holes in the carbonate platform and islands of the Bahamas.
Tarpon blue hole is an estuarine blue hole that has a surface salinity ranging from near zero to 16 ppt and a bottom salinity over 23 ppt. The salinity stratification creates an isolated, sulfidic, subpycnocline layer where there is a dense, layered microbial community. Its location and its ability to reduce thiosulfate and sulfur, suggest that strain T3A is an active participant in the cycling of sulfur in Tarpon's microbial community. Strain T3A is a highly motile, non-spore forming, Gram negative vibrio. An Official UMass Dartmouth Web Publication.