Saltern Additional environmental factors Number of OTUs presented Division presented, % Number of genera presented Dominant genera , % New sequences , % Reference Pomorie Temp. 24°C, annual rainfall 598 mm/year, pH 7.2, organic carbon 190 mg/L 27 Halobacteriaceae Haloferacaceae 15 Halanaeroarchaeum , 28, Halorubrum , 23, Halonotius , 1753.9 This study Maras salterns pH 6.5–7.0 6 Halobacteriaceae 2 Haloquadratum , 69, Halobacterium , 3133.3 [13 ] Guerrero Negro saltern (ponds with more than 30% salt) Temp. 16.2–18.9°C 19 Halobacteriaceae 4 Haloquadratum , >60%n.d. [7 ] Tunisian solar saltern, S5 Annual rainfall 230 mm/year average temperature of 15 and 33°C for the hottest and coldest months, respectively, pH 7.4 40 Halobacteriaceae 3 Haloquadratum , 55, Halorubrum , 3666.7 [2 ] Santa Pola salterns (32% salt pond) Temp. 28°C 11 Halobacteriaceae 4 Halorubrum n.d. [10 ] Three salterns, Bengal Bay, India pH 7.22–7.89 Temperature 32.1–36.6 10 Halobacteriaceae Haloferacaceae 9 Natrinema , 32.4%, Halorubrum , 19.1%, Halogeometricum , 11.8%, Haloferax , 11.8%0 [8 ]