3389/fmicb. 2018. 02023 10. 3389/fmicb. 2019. 02359 10. 3389/fmicb. 2019. 02016 10. 1016/j. scitotenv. 2019. 134803 10. 3390/microorganisms8040543 10. 1111/1462-2920. 12591 10. 1111/mec. 13633 10. 3389/fmicb. 2020. 00789 10. 1038/s41559-017-0091 10. 3389/fevo. 2018. 00099 Samples Technology Reads ASVs Bioproject 158 Illumina 31258 6557 PRJEB8682 139 Illumina 62575 6033 33 Illumina 313694 5872 24 454 6704 270 PRJNA202104 8 454 36628 182 PRJEB7577 17 454 13700 328 PRJEB11449 10 Illumina 13631 69 PRJNA254097 898 Illumina 1069869 19975 PRJEB6610 123 Illumina 48288 689 PRJNA645244 60 Illumina 31615 280 PRJNA645244 73 Illumina 71195 933 PRJEB21047 78 454 4822 806 PRJNA497792 179 Illumina 78420 6075 PRJEB23771 124 Illumina 194174 7059 PRJEB23913 289 Illumina 78880 9141 PRJEB23788 32 Illumina 36046 518 PRJNA383398 17 Illumina 24210 385 PRJNA368621 45 Illumina 74029 987 PRJEB23005 36 454 7136 467 PRJNA243055 23 454 5799 259 PRJNA217438 247 Illumina 36708 1533 PRJEB24314 35 454 3461 267 PRJEB23971 8 Illumina 213716 2255 PRJEB24595 139 454 8720 1155 PRJEB9133 32 Illumina 53391 2800 PRJNA451086 12 Illumina 15713 213 PRJNA399026 145 Illumina 8498 862 PRJNA486319 17 Illumina 67202 764 PRJNA534173 24 Illumina 63312 999 PRJNA534176, PRJNA330896 23 Illumina 66056 431 PRJEB24415 12 454 8480 124 PRJNA259710 19 Illumina 54102 608 PRJNA299108 64 Illumina 53628 628 PRJEB36925 175 Illumina Miseq 378928 10686 PRJNA317860 10 Illumina 137981 1385 PRJEB23471 Substrate water water water water ice water water water water sorted phytoplankton water, ice water water water water water ice water, ice, ice-algal aggregates water water water water water water, sediments water water water water water water water water water soil water ID Name Area Ecosystem 1 Ocean Sampling Day -2014 -V4 LGC Ocean survey coastal 2 Ocean Sampling Day -2015 -V4 Ocean survey coastal 3 Ocean Sampling Day -2014 -V4 LW Ocean survey coastal 5 Arctic Ocean, Beaufort Sea, MALINA Arctic Ocean oceanic cruise -2009 6 Arctic Ocean Central -2012 Arctic Ocean oceanic 9 Arctic Nansen Basin -2012 Arctic Ocean oceanic 11 Antarctic Feldes Bay-2013 Southern Ocean coastal 15 Tara Oceans -2009-2012 Ocean survey oceanic 16 Antarctic Feldes Bay 2015 18S V4 Southern Ocean coastal 18 Antarctic Feldes Bay 2015 18S V4 sorted Southern Ocean coastal 19 Baltic Sea Gulf of Finland -2012-2013 Baltic Sea coastal 20 Norway Oslo fjord -TS -2009-2011 Atlantic Ocean coastal 34 Malaspina expedition -vertical profiles -Ocean survey oceanic 2010-2011 35 Malaspina expedition -surface -2010-2011 Ocean survey oceanic 36 Spain Blanes Time Series -2004-2013 Mediterranean Sea coastal 37 Arctic Baffin Bay -2013 Arctic Ocean oceanic 38 Arctic White Sea -2013-2015 Arctic Ocean oceanic 39 Arctic Polarstern expedition ARK-XXVII/3 -Arctic Ocean oceanic 2012 40 Arctic Ocean Survey -2005-2011 Arctic Ocean oceanic 41 Chukchi Sea -ICESCAPE -2010 Arctic Ocean oceanic 42 Arctic Nares Strait -2014 Arctic Ocean oceanic 43 Baltic Sea Gdansk Gulf -2012 Baltic Sea coastal 49 Italy Bay of Naples -2011 Mediterranean Sea coastal 53 European coast Biomarks 2009 coast of Europe coastal 69 Mariana Trench 2016 1 Mariana Trench oceanic 70 Mariana Trench 2016 2 Mariana Trench oceanic 150 River Saint-Charles 2016-2017 Saint-Charles River freshwater rivers 183 Lake Fuxian 2015 Lake Fuxian freshwater lakes 185 Lake Chaohu 2014-2015 Lake Chaohu freshwater lakes 195 Lake Baikal 2013 Siberia freshwater lakes 196 Lake Chevreuse France 2012 Europe freshwater lakes 197 Lakes mountain 2013 Austria Chile Ethiopia freshwater lakes 198 Lake Garda Italy freshwater lakes 199 Soils Neotropical Central and South terrestrial America 200 River Parana South America freshwater rivers.