Gulf of Oman and marine wildlife can not exist. The dead zone encompasses nearly the entire 63,700-square-mile Gulf of Oman. The cause is a combination of increased ocean warming, and increased runoff of nitrogen and phosphorus from fertilizers. Gulf of Oman The Gulf of Oman or Sea of Oman ( "khalīj ʿumān"; "daryâ-ye omân") is a strait (and not an actual gulf) that connects the Arabian Sea with the Strait of Hormuz, which then runs to the Persian Gulf. It borders Iran and Pakistan on the north, Oman on the south, and the United Arab Emirates on the west. The International Hydrographic Organization
Persian Gulf naming dispute the head of the Persian Gulf. This coincided with the early mapmaking efforts of Gerard Mercator, whose 1541 terrestrial globe attempts to give the most up-to-date information, naming the gulf "Sinus Persicus, nunc Mare de Balsera" ("Persian Gulf, now Sea of Basra"). However, on his world map of 1569, the name is changed to "Mare di Mesendin" (after the peninsula Ra's Musandam, in modern-day Oman), while his rival Abraham Ortelius, for the world atlas of 1570, opted for "Mare El Catif, olim Sinus Persicus" (after the Arabian port of Al Qatif), but labelled the entrance to the gulf the present-day