Ligurian Sea Cetacean Sanctuary the main feeding ground for Fin Whales in the Mediterranean basin. The sanctuary was established on 25 November 1999 and is the first (and currently the only) international / High Seas MPA in the world covering areas of the Mediterranean seas of France, Italy, and the Principality of Monaco. To underline the importance of the sanctuary, it has been added to the Specially Protected Areas of Mediterranean Importance (SPAMI) list of the 1999 Barcelona Convention. Ligurian Sea Cetacean Sanctuary Originally called the International Ligurian Sea Cetacean Sanctuary (Ligurian Sea Sanctuary), what is now known as the Pelagos Sanctuary for Mediterranean
Metre sea water absolute pressure is used in most computations, particularly for decompression and breathing gas consumption but depth is measured by way of hydrostatic pressure. In metric units the ambient pressure is usually measured in metres sea water (msw}, and converted to bar for calculations. In US customary units ambient pressure is normally measured in feet of sea water (fsw), and converted to atmospheres absolute or pounds per square inch absolute (psia) for decompression computation. Feet and metres sea water are convenient measures which approximate closely to depth and are intuitively simple to grasp for the diver, compared to the options of