· South Pacific Ocean 12 35.8 2 33 — · English Channel 11 112.1 2 97 — · North Atlantic Ocean long running 8 97 6 1,292 — · North Pacific Ocean 8 52.2 2 180 — · North Pacific Ocean 8 9.7 0 — — · Aegean Sea long running 7 63.8 2 383 — · Celtic Sea 7 56.5 2 131 — · Mediterranean Sea - Western Basin 7 55.5 3 32 — · North Sea 7 44.1 2 24 — · North Atlantic Ocean 7 30.2 2 31 — · Adriatic Sea 7 17 0 — — · South Atlantic Ocean 6 286.2 8 296 — · North Atlantic Ocean long running 6 190.5 7 794 — · South Atlantic Ocean long running 6 57.1 3 545 — · North Pacific Ocean 6 23 0 — — · North Sea long running 5 121.2 3 454 — · North Pacific Ocean 5 60 2 37 — · Celtic Sea 5 36.4 1 46 — · Irish Sea and St. George's Channel 5 16.1 0 — — · Irish Sea and St. George's Channel 5 14.7 0 — — · English Channel 5 7.6 1 12 — · Inner Seas off the West Coast of Scotland 4 72.2 2 64 — · North Atlantic Ocean 4 36.1 4 31 — · Mediterranean Sea - Western Basin 4 26.2 1 24 — · Tyrrhenian Sea long running 3 179.6 6 741 — · Gulf of Mexico 3 70 1 40 — · Coral Sea 3 48.5 2 68 — · North Atlantic Ocean 3 29 2 44 — · North Atlantic Ocean 3 13 1 33 — · Mediterranean Sea - Eastern Basin 3 10.9 0 — — · Bass Strait 3 7.1 2 5 — · Mediterranean Sea - Western Basin 2 112.2 5 264 — · North Atlantic Ocean 2 106.7 3 58 — · South Pacific Ocean long running 2 96.4 3 855 — · South Pacific Ocean 2 58.2 2 29 — · Tyrrhenian Sea 2 41.7 0 — — · North Atlantic Ocean long running 2 33.3 2 498 — · Celtic Sea 2 20.5 1 24 — · South China Sea 2 20.3 1 20 — · Eastern China Sea 2 20.2 1 61 — · Ionian Sea 2 17.6 0 — — · South China Sea 2 13.3 0 — — · Irish Sea and St. George's Channel 2 11.3 1 12 — · Java Sea 2 10.6 0 — — · Philippine Sea 2 6 0 — — · Ligurian Sea 2 5.7 0 — — · North Atlantic Ocean 2 5.7 1 29 — · Inner Seas off the West Coast of Scotland 2 4 0 — — · Philippine Sea 2 1 0 — — · North Sea long running 1 93.5 4 633 — · Indian Ocean long running 1 59.9 2 595 — · Indian Ocean 1 59.9 2 357 — · South Atlantic Ocean long running 1 59.7 1 668 — · North Atlantic Ocean 1 32.8 2 167 — · Gulf of Mexico long running 1 32 1 729 — · South Atlantic Ocean 1 30.3 1 44 — · Indian Ocean 1 26.7 1 26 — · Irish Sea and St. George's Channel 1 23.9 1 23 — · Bismarck Sea 1 23 1 22 — · Bass Strait 1 12.9 0 — — · Mozambique Channel 1 12.7 1 12 — · Irish Sea and St. George's Channel 1 11.5 1 11 — · Indian Ocean 1 10.2 1 10 — · Caribbean Sea 1 9.7 1 9 — · Eastern China Sea 1 9.6 0 — — · Tasman Sea 1 6.3 0 — — · Aegean Sea 1 5.2 1 33 — · Tyrrhenian Sea 1 3.1 0 — — · Bering Sea 1 3 0 — — · Bismarck Sea 1 3 0 — — · Coral Sea 1 3 0 — — · Indian Ocean 1 3 0 — — · Molukka Sea 1 3 0 — — · Sea of Okhotsk 1 3 0 — — · Solomon Sea 1 3 0 — — · North Pacific Ocean 1 2.9 1 2 — · Gulf of Guinea 1 2.7 0 — — · North Pacific Ocean 1 2.1 1 2 — · Ligurian Sea 1 2 1 1 — · Tyrrhenian Sea 1 2 0 — — · South China Sea 1 1.9 0 — — · Philippine Sea 1 1.5 0 — — · Bay of Biscay 1 1.3 0 — — · Ionian Sea 1 0.3 0 — — · North Pacific Ocean 1 0.1 0 — — · Persian Gulf long running 0 124 4 586 — · North Sea 0 114 3 229 — · North Atlantic Ocean long running 0 93 3 853 — · Persian Gulf long running 0 93 3 370 — · Persian Gulf long running 0 83 2 1,479 — · South China Sea long running 0 67 1 1,047 — · North Pacific Ocean long running 0 65 2 932 — · Adriatic Sea long running 0 62 2 533 — · Persian Gulf 0 62 2 234 — · South Atlantic Ocean long running 0 62 2 370 — · Tyrrhenian Sea 0 59 1 230 — · Adriatic Sea long running 0 31 1 776 — · Adriatic Sea long running 0 31 1 402 — · Black Sea 0 31 1 88 — · Black Sea long running 0 31 1 650 — · Bristol Channel long running 0 31 1 577 — · Caribbean Sea 0 31 1 312 — · Caribbean Sea long running 0 31 1 738 — · Celtic Sea long running 0 31 1 521 — · English Channel long running 0 31 1 564 — · Gulf of Suez 0 31 1 240 — · Japan Sea 0 31 1 34 — · Labrador Sea long running 0 31 1 893 — · Ligurian Sea 0 31 1 49 — · Ligurian Sea long running 0 31 1 790 — · Makassar Strait 0 31 1 104 — · Malacca Strait long running 0 31 1 816 — · Mediterranean Sea - Eastern Basin long running 0 31 1 461 — · Mozambique Channel 0 31 1 135 — · Mozambique Channel 0 31 1 106 — · North Atlantic Ocean 0 31 1 135 — · North Atlantic Ocean 0 31 1 320 — · North Pacific Ocean long running 0 31 1 798 — · North Sea 0 31 1 326 — · North Sea long running 0 31 1 434 — · Persian Gulf 0 31 1 144 — · Philippine Sea long running 0 31 1 1,072 — · Philippine Sea long running 0 31 1 863 — · Red Sea long running 0 31 1 1,150 — · Red Sea 0 31 1 37 — · Solomon Sea 0 31 1 175 — · South Atlantic Ocean 0 31 1 51 — · South China Sea 0 31 1 50 — · South Pacific Ocean 0 31 1 362 — · Sulu Sea 0 31 1 98 — · Timor Sea long running 0 31 1 1,238 — · Tyrrhenian Sea 0 31 1 67 — · Tyrrhenian Sea 0 31 1 101 — · Mediterranean Sea - Eastern Basin 0 28 0 — — · South China Sea 0 28 0 — — · Coral Sea 0 21 0 — — · English Channel 0 21 0 — — · Persian Gulf 0 21 0 — — · Arafura Sea 0 11 0 — — · Ionian Sea 0 7 0 — — · South Pacific Ocean 0 7 0 — — · Rio de La Plata 0 5 0 — — · Caribbean Sea 0 3 0 — — · Celebes Sea 0 1 0 — — · Laccadive Sea 0 0 0 — — · Mediterranean Sea - Western Basin 0 0 0 — — · North Atlantic Ocean 0 0 0 — — · North Sea 0 0 0 — — · South Atlantic Ocean 0 0 0 — —