Figure 6: Location of experimental stations with a plenty of Dsr matching sequences. A – Gutless Worm, Bay of Capo di Sant’ Andrea, Elba; B – Alvinella Pompejana, East Pacific Rise; C – Farm Soil, Waseca County; D – Deep Mediterranean, Ionian 3 Km station; E – Richmond Acid Mine; F – Sargasso Station 13; G – Upwelling, Fernandina Island, Galapagos; H – Punta Cormorant, Hypersaline Lagoon, Floreana Island, Galapagos.