· South Atlantic Ocean 15 68.2 3 35 — · Celtic Sea 14 33 1 18 — · South Atlantic Ocean 13 167.4 5 162 — · North Sea 13 44.1 0 — — · North Sea 12 102.5 2 39 — · North Pacific Ocean 9 121.3 2 62 — · South Pacific Ocean 9 24.8 2 31 — · South Atlantic Ocean 8 193.2 5 172 — · South Atlantic Ocean 8 42.4 2 21 — · North Pacific Ocean 8 34.4 0 — — · Coral Sea 7 41.3 1 61 — · Tyrrhenian Sea 6 117.3 4 92 — · North Sea 6 104.9 2 85 — · Celtic Sea 6 86 1 349 — · Irish Sea and St. George's Channel 6 49.5 1 121 — · South Pacific Ocean 6 35.8 2 28 — · Gulf of Mexico 6 29.3 1 25 — · North Pacific Ocean 6 18 0 — — · Indian Ocean 5 81.6 4 42 — · North Atlantic Ocean 5 75.9 4 32 — · North Pacific Ocean 5 60 2 34 — · Tyrrhenian Sea 5 49.9 1 26 — · South Atlantic Ocean 5 43.2 2 32 — · Solomon Sea 5 15 0 — — · North Atlantic Ocean 5 13.7 2 21 — · Adriatic Sea 5 11.4 0 — — · South Pacific Ocean 4 122.4 5 293 — · Mediterranean Sea - Western Basin 4 24.8 2 27 — · North Pacific Ocean 4 14.4 0 — — · Coral Sea 4 12 0 — — · Mediterranean Sea - Eastern Basin 4 7.2 1 32 — · Adriatic Sea 3 521.4 17 195 — · Persian Gulf 3 138.4 4 348 — · North Atlantic Ocean 3 125.3 4 218 — · North Atlantic Ocean 3 104 3 40 — · Coral Sea 3 76.3 2 166 — · Persian Gulf 3 64.2 2 36 — · South Atlantic Ocean 3 9 0 — — · Indian Ocean 3 7.8 1 27 — · Molukka Sea 3 7.5 2 12 — · North Pacific Ocean 3 7.2 0 — — · Inner Seas off the West Coast of Scotland 2 153.1 5 194 — · Aegean Sea 2 73 2 330 — · Tasman Sea 2 45 2 46 — · Arabian Sea 2 43.9 1 56 — · South Pacific Ocean 2 28.4 2 17 — · Mediterranean Sea - Eastern Basin 2 24.2 1 19 — · Eastern China Sea 2 23 1 22 — · Arabian Sea 2 22.3 1 21 — · North Atlantic Ocean 2 13.8 0 — — · Ligurian Sea 2 9.9 0 — — · Mediterranean Sea - Eastern Basin 2 8.5 1 8 — · Greenland Sea 2 7.9 0 — — · English Channel 2 7.8 0 — — · Tyrrhenian Sea 2 7.2 1 9 — · Black Sea 2 6 0 — — · Mediterranean Sea - Eastern Basin 2 5.7 1 15 — · North Atlantic Ocean 2 3.7 0 — — · Philippine Sea 2 1.8 0 — — · Arafura Sea 2 1.5 0 — — · Great Australian Bight 2 1.1 0 — — · Bay of Bengal 1 110 3 56 — · North Atlantic Ocean long running 1 87.2 3 504 — · South China Sea 1 85.6 3 81 — · North Sea long running 1 74 3 532 — · English Channel 1 56.5 2 153 — · North Atlantic Ocean 1 44.9 0 — — · South Atlantic Ocean 1 37.2 0 — — · North Atlantic Ocean 1 34 1 41 — · Adriatic Sea long running 1 31.5 1 1,079 — · Tasman Sea 1 30.7 2 105 — · Mediterranean Sea - Western Basin 1 27.1 1 27 — · Tyrrhenian Sea 1 26.6 1 26 — · Bay of Bengal 1 26.1 0 — — · Celtic Sea 1 23.1 1 23 — · Gulf of Mexico 1 19 1 32 — · Andaman or Burma Sea 1 18.4 1 18 — · Arabian Sea 1 18.2 0 — — · South Pacific Ocean 1 12.4 0 — — · Ligurian Sea 1 12.3 1 53 — · Bay of Biscay 1 11.6 0 — — · Bay of Biscay 1 11.6 0 — — · Philippine Sea 1 11.5 1 11 — · Mediterranean Sea - Eastern Basin 1 10.9 0 — — · Celtic Sea 1 7 0 — — · Indian Ocean 1 7 0 — — · South Pacific Ocean 1 7 0 — — · North Atlantic Ocean 1 6.9 0 — — · Tasman Sea 1 6.9 0 — — · Adriatic Sea 1 6.8 0 — — · Bass Strait 1 6.8 1 6 — · Mediterranean Sea - Western Basin 1 6.8 0 — — · Persian Gulf 1 6.8 0 — — · Bay of Bengal 1 6.7 0 — — · South China Sea 1 6.6 1 6 — · Japan Sea 1 5.9 1 5 — · Ionian Sea 1 4.7 1 4 — · North Pacific Ocean 1 4.6 0 — — · North Atlantic Ocean 1 4.3 1 4 — · North Sea 1 4.2 1 4 — · Arabian Sea 1 3 0 — — · Bering Sea 1 3 0 — — · Gulf of Tomini 1 3 0 — — · Philippine Sea 1 3 0 — — · Sea of Marmara 1 3 0 — — · Southern Ocean 1 3 0 — — · Eastern China Sea 1 2.6 0 — — · Sea of Okhotsk 1 2.4 0 — — · Caribbean Sea 1 2.1 0 — — · South Pacific Ocean 1 2.1 0 — — · South Atlantic Ocean 1 2 0 — — · Gulf of Guinea 1 1.9 0 — — · Southern Ocean 1 1.6 0 — — · Arafura Sea 1 1.3 0 — — · Persian Gulf 1 1.2 0 — — · Gulf of Mexico 1 1 0 — — · Aegean Sea 1 0.8 0 — — · North Pacific Ocean 1 0.6 1 0 — · Celtic Sea 1 0.3 0 — — · Gulf of Aden 1 0.3 0 — — · Timor Sea 1 0 0 — — · South China Sea 0 82.9 2 64 — · North Sea 0 67.5 2 215 — · Coral Sea 0 60 2 67 — · North Pacific Ocean 0 60 2 305 — · North Sea long running 0 60 2 629 — · Tyrrhenian Sea long running 0 60 2 404 — · South China Sea 0 49.5 1 98 — · Gulf of Oman 0 30.7 0 — — · Adriatic Sea 0 30 1 252 — · Adriatic Sea 0 30 1 256 — · Adriatic Sea 0 30 1 229 — · Arabian Sea 0 30 1 132 — · Caribbean Sea 0 30 1 147 — · English Channel long running 0 30 1 867 — · Gulf of Mexico 0 30 1 131 — · Gulf of Mexico 0 30 1 49 — · Gulf of Suez long running 0 30 1 543 — · Gulf of Thailand 0 30 1 50 — · Makassar Strait 0 30 1 111 — · Malacca Strait 0 30 1 46 — · Malacca Strait 0 30 1 83 — · Mediterranean Sea - Eastern Basin 0 30 1 32 — · North Atlantic Ocean long running 0 30 1 623 — · North Atlantic Ocean 0 30 1 175 — · North Pacific Ocean 0 30 1 70 — · Persian Gulf 0 30 1 33 — · Persian Gulf long running 0 30 1 447 — · Red Sea long running 0 30 1 1,453 — · South China Sea 0 30 1 181 — · South China Sea 0 30 1 139 — · Tyrrhenian Sea 0 30 1 33 — · South Pacific Ocean 0 25.4 0 — — · Caribbean Sea 0 25.2 0 — — · South Pacific Ocean 0 22.9 0 — — · Aegean Sea 0 18.4 0 — — · Gulf of Mexico 0 18.4 0 — — · North Sea 0 18.4 0 — — · Persian Gulf 0 18.4 0 — — · Indian Ocean 0 17.1 0 — — · Coral Sea 0 11.4 0 — — · Ionian Sea 0 10.2 0 — — · Aegean Sea 0 7.5 0 — — · Celtic Sea 0 6.2 0 — — · Irish Sea and St. George's Channel 0 5.5 0 — — · North Atlantic Ocean 0 5.3 0 — — · Gulf of Alaska 0 5 0 — — · Japan Sea 0 4.6 0 — — · Indian Ocean 0 4.5 0 — — · Inner Seas off the West Coast of Scotland 0 4.4 0 — — · Bay of Bengal 0 4.2 0 — — · Caribbean Sea 0 4 0 — —