Fig. S1
Fig. S2 a) OceanLocation OTU_01OTU_02OTU_03OTU_04OTU_05OTU_06OTU_07OTU_08OTU_09OTU_10OTU_11OTU_12OTU_13OTU_14OTU_15OTU_16OTU_17OTU_18OTU_19OTU_20 Arctic Ocean 1 32 Arctic Ocean, Svalbard Pacific Arctic Ocean/ Beaufort Sea Barents Sea Northern Bering Sea Southern Ocean Tide gauge site, Brown Bay, McGrady Cove and Stevenson Cove, Antarctica 242 Terra Nova Bay, Antarctica 27 Bransfield Strait, Antarctica 1 3 Atlantic Ocean Baltic Sea Eastern Mediterranean Sea Galicia, Spain Gulf of Cádiz Gulf of Mexico 1 1 Jade Bay, North Sea 12 Logatchev hydrothermal vent field/ Mid Atlantic ridge Mid-Atlantic Ridge Milazzo Harbor/ Tirrenean Sea 1 Northern Sea 1 Sapelo Island/ Sargasso Sea 1 Trondheimsfjord, Norway/ Norwegian Sea Wadden Sea 8 1 Santos–São Vicente estuary, Brazil 1 Rio de la Plata Indian Ocean Arabian Sea 1 3 Timor Sea 1 1 Crozet Island Archipelago South West Indian Ridge Pacific Ocean Cascadia Margin, Oregon 1 Clarion-Clipperton Fracture Zone Japan Trench 21 1 Jiaozhao Bay/ Yellow Sea 1 Juan de Fuca segments/ Salish Sea Monterey Canyon, CA Nankai Trough Yellow Sea Northeastern Japan Sea 1 12 off Shimokita Peninsula 1 Ogasawara Trench 1 1 Okhotsk Sea 1 1 Pacific Ocean Northeastern Pacific Ocean South Pacific abyssal Kane’ohe Bay, O’ahu, Hawaii/ South Pacific Ocean 1 1 Pacific Warm Pool/ West Pacific Ocean East Pacific Ocean 22 4 Western Pacific Ocean 11 Qiongdongnan basin, South China Sea Ryukyu Trench/ East China Sea Sagami bay/ Sagani Sea 3 Shane Seep in the Coal Oil Point seep field, offshore of Santa Barbara, CA 13 1 Shiribeshi Seamount, northeast Japan Sea 1 1 South China Sea East China sea 1 1 Ulleung Basin/ East Sea 11 West Philippine Basin/ Philippine Sea 1 Xiangshan harbor/ East China Sea 13 Yellow Sea 14 3 Yonaguni Knoll IV hydrothermal field/ East China Sea 11 Yung-An ridge, SW Taiwan/ East China Sea 1 East Lau Basin Pacific or Atlantic Ocean Pacific Ocean and the Eastern Mediterranean Sea Pacific or Indian Ocean South China Sea, the Andaman Sea and the Indian Ocean Unknown
OceanLocation OTU_01OTU_02OTU_03OTU_04OTU_05OTU_06OTU_07OTU_08OTU_09OTU_10OTU_11OTU_12OTU_13OTU_14OTU_15OTU_16OTU_17OTU_18OTU_19OTU_20 Pacific Ocean Cobb Seamount Juan de Fuca 1 1 East Lau Spreading Center 1 East Pacific Rise Guaymas Basin 1 Hawai'i South Point X Hawai'i South Point X Hikurangi Margin (New Zealand) 1 Japan Trench 1 1 Juan de Fuca Ridge 1 1 Loi'hi Seamount Pisces Peak X Loi'hi Seamount South Rift X3 1 1 Atlantic Ocean Mediterranean cold seep 1 Indian Ocean Southwest Indian Ocean Ridge 1 2 Fig. S2 b)