· North Sea 14 77.4 1 87 — · South Pacific Ocean 11 33 0 — — · North Atlantic Ocean 11 23.5 0 — — · Southern Ocean 9 41.5 2 26 — · Gulf of Guinea 8 16.3 0 — — · Celtic Sea 8 13.8 1 31 — · South Atlantic Ocean 7 188 7 244 — · Inner Seas off the West Coast of Scotland 7 96.8 4 72 — · South Atlantic Ocean 7 94 2 77 — · English Channel 7 70.8 3 52 — · North Sea 7 25.2 2 22 — · Adriatic Sea 6 832.1 28 74 — · North Atlantic Ocean 6 212 9 116 — · North Pacific Ocean 6 62 2 37 — · North Pacific Ocean 6 46.7 2 361 — · North Atlantic Ocean 6 23.7 2 38 — · Celtic Sea 5 97.8 3 312 — · North Atlantic Ocean 5 79.1 3 45 — · South Atlantic Ocean 5 77.9 3 40 — · North Pacific Ocean 5 34.3 1 36 — · North Atlantic Ocean 5 16.1 2 40 — · Tyrrhenian Sea 4 208 8 132 — · Coral Sea 4 131.1 4 249 — · North Pacific Ocean 4 29 0 — — · English Channel 4 20.5 2 11 — · Indian Ocean 4 18 2 11 — · Caribbean Sea 4 12.8 1 23 — · Celtic Sea 3 58.7 3 227 — · Adriatic Sea 3 57.5 2 134 — · South Pacific Ocean 3 45.3 2 40 — · North Atlantic Ocean 3 36 2 16 — · The Coastal Waters of Southeast Alaska and British Columbia 3 34 2 35 — · Gulf of Mexico 3 33 2 37 — · Caribbean Sea 3 30.6 1 25 — · South Pacific Ocean 3 13.6 0 — — · Philippine Sea 3 9 0 — — · North Atlantic Ocean long running 2 119.2 3 382 — · Persian Gulf 2 72.3 3 226 — · South China Sea 2 62 2 231 — · Eastern China Sea 2 50.6 1 36 — · Irish Sea and St. George's Channel 2 35.6 1 102 — · Japan Sea 2 35.4 2 29 — · Mediterranean Sea - Eastern Basin 2 30.1 0 — — · North Pacific Ocean 2 28 2 14 — · South Pacific Ocean 2 28 1 46 — · Indian Ocean 2 22 1 21 — · Tasman Sea 2 21.1 0 — — · Mediterranean Sea - Eastern Basin 2 20 2 10 — · North Pacific Ocean 2 14.5 0 — — · North Atlantic Ocean 2 13.2 0 — — · North Atlantic Ocean 2 12.8 1 24 — · South China Sea 2 11.1 0 — — · Mediterranean Sea - Eastern Basin 2 7.4 0 — — · North Sea 2 7.3 2 4 — · Mediterranean Sea - Western Basin 2 6.5 0 — — · Bismarck Sea 2 6 0 — — · Greenland Sea 2 6 0 — — · Solomon Sea 2 6 0 — — · Tyrrhenian Sea 2 5.7 0 — — · South China Sea 2 5 1 4 — · English Channel 2 3.4 0 — — · Philippine Sea 2 2.4 0 — — · Irish Sea and St. George's Channel 2 2.3 0 — — · Coral Sea 2 0.6 0 — — · North Atlantic Ocean 1 108 3 52 — · English Channel 1 80.2 3 33 — · Persian Gulf 1 60.9 2 114 — · North Atlantic Ocean 1 53.3 2 53 — · Mediterranean Sea - Western Basin long running 1 47.8 1 389 — · Tyrrhenian Sea 1 43 2 282 — · Greenland Sea 1 41.7 1 52 — · Mediterranean Sea - Western Basin 1 39.6 1 50 — · Adriatic Sea long running 1 34.1 1 957 — · Black Sea 1 32.6 1 85 — · Indian Ocean 1 32.2 1 129 — · Singapore Strait 1 31.7 1 59 — · Inner Seas off the West Coast of Scotland 1 31 1 40 — · Caribbean Sea 1 30.5 1 30 — · Celtic Sea 1 27.4 1 27 — · Great Australian Bight 1 24.4 0 — — · Ionian Sea 1 23.2 1 23 — · Indian Ocean 1 22.6 1 22 — · South China Sea 1 17.6 1 17 — · Gulf of Guinea 1 16.7 1 16 — · Black Sea 1 14.6 0 — — · Tasman Sea 1 14.4 0 — — · Malacca Strait 1 12 1 11 — · Ionian Sea 1 11.5 0 — — · Arabian Sea 1 10.3 1 10 — · Bay of Bengal 1 10.3 1 10 — · Gulf of Mexico 1 10 1 9 — · Mediterranean Sea - Eastern Basin 1 7 0 — — · North Pacific Ocean 1 7 0 — — · Celtic Sea 1 6.5 0 — — · Yellow Sea 1 6.1 0 — — · North Pacific Ocean 1 6 0 — — · Mediterranean Sea - Eastern Basin 1 5.3 0 — — · South China Sea 1 5.3 0 — — · Irish Sea and St. George's Channel 1 5.1 1 5 — · Malacca Strait 1 5 0 — — · North Pacific Ocean 1 4.7 0 — — · Adriatic Sea 1 4.3 0 — — · Ligurian Sea 1 4.3 0 — — · Coral Sea 1 4.2 0 — — · Indian Ocean 1 4 0 — — · English Channel 1 3.6 0 — — · Bering Sea 1 3 0 — — · Caribbean Sea 1 3 0 — — · Savu Sea 1 3 0 — — · North Sea 1 2.8 0 — — · North Atlantic Ocean 1 2.7 0 — — · Arabian Sea 1 2.4 1 2 — · Irish Sea and St. George's Channel 1 1.7 0 — — · Gulf of Thailand 1 1.6 1 1 — · Ligurian Sea 1 0.9 1 0 — · South Pacific Ocean 1 0.6 0 — — · Bass Strait 1 0.2 0 — — · Gulf of Aden 1 0.2 0 — — · Gulf of Guinea 1 0.1 0 — — · Ionian Sea 1 0.1 0 — — · South Pacific Ocean 1 0.1 0 — — · North Sea long running 0 132.4 4 789 — · Persian Gulf long running 0 124 4 767 — · Aegean Sea 0 62.8 2 208 — · Adriatic Sea 0 62 2 234 — · Malacca Strait 0 62 2 81 — · Mozambique Channel 0 62 2 287 — · North Pacific Ocean 0 62 2 183 — · North Sea long running 0 62 2 507 — · North Sea long running 0 62 2 410 — · South China Sea 0 62 2 59 — · South Pacific Ocean 0 62 2 171 — · Adriatic Sea 0 31 1 107 — · Bering Sea 0 31 1 31 — · English Channel 0 31 1 36 — · English Channel long running 0 31 1 745 — · Gulf of Oman 0 31 1 49 — · Gulf of Suez long running 0 31 1 421 — · Ligurian Sea 0 31 1 87 — · Mediterranean Sea - Eastern Basin long running 0 31 1 642 — · Mozambique Channel 0 31 1 316 — · North Atlantic Ocean long running 0 31 1 501 — · North Pacific Ocean 0 31 1 62 — · Persian Gulf 0 31 1 54 — · Persian Gulf 0 31 1 325 — · Red Sea long running 0 31 1 1,331 — · Solomon Sea 0 31 1 169 — · South Atlantic Ocean 0 31 1 44 — · Tyrrhenian Sea 0 31 1 66 — · Tyrrhenian Sea 0 31 1 63 — · North Atlantic Ocean 0 29.7 0 — — · South Atlantic Ocean 0 23.2 0 — — · Tyrrhenian Sea 0 17.5 0 — — · North Pacific Ocean 0 15.4 0 — — · Philippine Sea 0 15.4 0 — — · South China Sea 0 10 0 — — · Indian Ocean 0 8.4 0 — — · Mozambique Channel 0 8.4 0 — — · Philippine Sea 0 6.5 0 — — · Gulf of Alaska 0 4.9 0 — — · South Pacific Ocean 0 4 0 — — · South Atlantic Ocean 0 3.2 0 — — · Norwegian Sea 0 1.4 0 — — · Irish Sea and St. George's Channel 0 0.4 0 — —