· Adriatic Sea 31 35.6 2 31 — · North Atlantic Ocean long running 9 108.5 2 853 — · South Atlantic Ocean 8 142.5 4 136 — · North Pacific Ocean 8 42.2 3 24 — · North Sea 8 35.1 1 32 — · North Atlantic Ocean 8 12.1 0 — — · North Pacific Ocean 7 49.8 2 239 — · Aegean Sea 6 44.1 2 86 — · North Pacific Ocean 6 35 1 34 — · South Pacific Ocean 6 18 0 — — · North Pacific Ocean 5 60.1 2 35 — · Indian Ocean 5 20.1 1 13 — · Bass Strait 5 14.3 1 30 — · Ligurian Sea 5 9 0 — — · Tyrrhenian Sea long running 4 119.9 5 390 — · North Sea 4 67 2 100 — · North Atlantic Ocean 4 64.9 0 — — · Eastern China Sea 3 50.5 3 31 — · Inner Seas off the West Coast of Scotland 3 47.3 1 90 — · Philippine Sea 3 41.8 1 29 — · North Atlantic Ocean 3 24.4 2 39 — · Mediterranean Sea - Western Basin 3 21.5 0 — — · Mediterranean Sea - Western Basin 3 19 0 — — · South China Sea 3 16.7 1 31 — · Irish Sea and St. George's Channel 3 16.6 1 18 — · English Channel 3 14.8 0 — — · Irish Sea and St. George's Channel 3 12.6 0 — — · Mediterranean Sea - Eastern Basin 3 11 1 13 — · Black Sea 3 9.1 2 6 — · Arctic Ocean 3 9 0 — — · Bristol Channel 3 9 1 7 — · Celtic Sea 3 6.3 0 — — · Philippine Sea 3 0 0 — — · Celtic Sea 2 62.7 2 190 — · Adriatic Sea 2 52.7 2 112 — · Coral Sea 2 43.4 1 127 — · South Pacific Ocean 2 42.9 1 49 — · Tyrrhenian Sea 2 35.8 0 — — · South Atlantic Ocean 2 22.8 0 — — · North Pacific Ocean 2 20.3 1 30 — · South Atlantic Ocean 2 17.5 0 — — · North Pacific Ocean 2 16 1 45 — · Indian Ocean 2 14.4 0 — — · South Atlantic Ocean 2 12.8 0 — — · North Pacific Ocean 2 10.5 1 25 — · Japan Sea 2 9.7 2 5 — · Celebes Sea 2 6 0 — — · Ceram Sea 2 6 0 — — · Molukka Sea 2 6 0 — — · Indian Ocean 2 5.7 1 4 — · Malacca Strait 2 5.2 1 15 — · Ionian Sea 2 4.9 0 — — · Bristol Channel 2 4.4 0 — — · Caribbean Sea 2 2.4 1 23 — · Mediterranean Sea - Eastern Basin 2 2.3 0 — — · English Channel 2 0.5 0 — — · Mediterranean Sea - Western Basin 1 136 4 323 — · North Sea 1 82.4 3 288 — · North Sea long running 1 82.1 1 692 — · South Atlantic Ocean 1 52.6 2 155 — · North Atlantic Ocean 1 33.6 2 226 — · Celtic Sea 1 32.2 1 105 — · South Atlantic Ocean 1 30.7 1 110 — · North Atlantic Ocean 1 28.1 0 — — · Philippine Sea 1 24.9 0 — — · Persian Gulf 1 24.4 1 24 — · Adriatic Sea long running 1 23.2 1 461 — · Gulf of Mexico 1 23.1 1 23 — · Gulf of St. Lawrence 1 14 0 — — · Ionian Sea 1 12.3 1 12 — · Ionian Sea 1 11.4 1 11 — · North Atlantic Ocean 1 9 1 9 — · English Channel 1 8.6 0 — — · Malacca Strait 1 8.4 0 — — · Mediterranean Sea - Eastern Basin 1 8.3 1 8 — · Aegean Sea 1 8.1 1 8 — · South Pacific Ocean 1 8.1 0 — — · Balearic (Iberian Sea) 1 7.4 0 — — · Tyrrhenian Sea 1 7.2 1 43 — · Alboran Sea 1 6.4 0 — — · South China Sea 1 4.6 0 — — · Ionian Sea 1 4.3 1 4 — · Eastern China Sea 1 4 0 — — · South Atlantic Ocean 1 3.9 0 — — · Banda Sea 1 3 0 — — · Bering Sea 1 3 0 — — · Eastern China Sea 1 3 0 — — · Java Sea 1 3 0 — — · Philippine Sea 1 3 0 — — · Solomon Sea 1 2.9 1 2 — · Tasman Sea 1 1.8 0 — — · Ligurian Sea 1 1.4 0 — — · Tyrrhenian Sea 1 1.3 0 — — · Philippine Sea 1 0.6 0 — — · Irish Sea and St. George's Channel 1 0.4 0 — — · Greenland Sea 1 0.2 0 — — · Ligurian Sea 1 0.1 0 — — · Irish Sea and St. George's Channel 1 0 0 — — · Persian Gulf long running 0 124 4 645 — · North Atlantic Ocean 0 92 2 65 — · North Atlantic Ocean long running 0 74 2 912 — · North Atlantic Ocean long running 0 69 1 1,351 — · Mozambique Channel 0 62 2 165 — · Persian Gulf long running 0 53 1 429 — · Persian Gulf 0 43 1 293 — · Persian Gulf long running 0 43 1 1,538 — · South Atlantic Ocean long running 0 42 1 429 — · South Pacific Ocean 0 37 0 — — · Gulf of Mexico 0 32 0 — — · Adriatic Sea 0 31 1 32 — · Adriatic Sea long running 0 31 1 835 — · Bismarck Sea 0 31 1 81 — · Caribbean Sea long running 0 31 1 371 — · Caribbean Sea long running 0 31 1 797 — · English Channel long running 0 31 1 623 — · Gulf of Guinea 0 31 1 39 — · Gulf of Suez 0 31 1 299 — · Ligurian Sea 0 31 1 108 — · Makassar Strait 0 31 1 163 — · Mediterranean Sea - Eastern Basin long running 0 31 1 520 — · Mozambique Channel 0 31 1 194 — · North Atlantic Ocean 0 31 1 48 — · North Atlantic Ocean long running 0 31 1 379 — · North Pacific Ocean 0 31 1 306 — · North Pacific Ocean 0 31 1 61 — · North Sea long running 0 31 1 385 — · Persian Gulf 0 31 1 203 — · Red Sea long running 0 31 1 1,209 — · Solomon Sea 0 31 1 47 — · South China Sea 0 31 1 109 — · Sulu Sea 0 31 1 157 — · Tyrrhenian Sea 0 31 1 126 — · Tyrrhenian Sea 0 31 1 160 — · South China Sea 0 29 0 — — · Ionian Sea 0 26 0 — — · North Sea 0 25 0 — — · Persian Gulf 0 25 0 — — · South Pacific Ocean 0 23 0 — — · Labrador Sea 0 18 0 — — · Great Australian Bight 0 14 0 — — · North Pacific Ocean 0 13 0 — — · Celtic Sea 0 12 0 — — · Gulf of Mexico 0 12 0 — — · Indian Ocean 0 12 0 — — · Ligurian Sea 0 12 0 — — · Malacca Strait 0 12 0 — — · North Atlantic Ocean 0 12 0 — — · North Pacific Ocean 0 12 0 — — · North Sea 0 12 0 — — · South China Sea 0 12 0 — — · Black Sea 0 11 0 — — · Tyrrhenian Sea 0 11 0 — — · Labrador Sea 0 6 0 — — · South China Sea 0 6 0 — — · Bering Sea 0 4 0 — — · Ionian Sea 0 4 0 — — · Mediterranean Sea - Western Basin 0 4 0 — — · Mozambique Channel 0 4 0 — — · Gulf of Alaska 0 3 0 — — · South Atlantic Ocean 0 1.5 0 — — · Southern Ocean 0 1.3 0 — — · Mediterranean Sea - Eastern Basin 0 0 0 — —