Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Technische Universität Braunschweig https://www.tu-braunschweig.de/ https://ror.org/010nsgg66 Biester Harald h.biester@tu-braunschweig.de Technische Universität Braunschweig https://www.tu-braunschweig.de/ https://ror.org/010nsgg66 Wenzhöfer Frank frank.wenzhoefer@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/frank-wenzhoefer.html Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven AWI https://www.awi.de/ https://ror.org/032e6b942 Glud Ronnie N rnglud@biology.sdu.dk 0000-0002-7069-893X University of Southern Denmark SDU https://www.sdu.dk/en https://ror.org/03yrrjy16 2026 Total mercury, monomethylmercury, and total carbon in sediments from the Southern Ocean and South Sandwich Trench during the PS133/1 expedition (3 – 9 November 2022) dataset https://doi.org/10.1594/PANGAEA.987321 Sediment cores for total mercury (Hg), monomethylmercury (MMHg), and total carbon (TC) were collected in the Southern Ocean and the South Sandwich Trench between 3 and 9 November 2022 during the PS133/1 expedition. Sampling depths ranged from approximately 3700 to 8000 m, using a multicorer (MUC) system. Total Hg concentrations were determined by thermal decomposition, amalgamation, and atomic absorption spectrophotometry (TDA–AAS) using a DMA-80 Direct Mercury Analyzer (Milestone). Monomethylmercury (MMHg) was analyzed by gas chromatography–cold vapor atomic fluorescence spectrometry (GC–CVAFS) following ethylation with sodium tetraethylborate on a KOH-digested aliquot, using a Brooks Rand manual system. Total carbon (TC) was measured using an elemental analyzer Euro EA 3000 (HEKAtech GmbH). Biester Harald Uwe 0000-0001-5987-3680 Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Calean Adelina Sindlev Marco B marcos@biology.sdu.dk Pakhomov Evgeny A epakhomov@eoas.ubc.ca Lüskow Florian florian.luskow@geo.uu.se 0000-0002-2100-7012 Stimac Ingrid Ingrid.Stimac@awi.de 0000-0001-6053-2330 Trimborn Scarlett scarlett.trimborn@awi.de 0000-0003-1434-9927 Dufour Aurélie Torres-Rodriguez Natalia 0000-0002-4649-2413 Heimbürger-Boavida Lars-Eric 0000-0003-0632-5183 Wenzhöfer Frank frank.wenzhoefer@awi.de https://www.awi.de/en/about-us/organisation/staff/single-view/frank-wenzhoefer.html Glud Ronnie N rnglud@biology.sdu.dk 0000-0002-7069-893X 2026 Dissolved and Particulate Methylated Mercury in a Highly Productive Area of the Southern Ocean journal article Global Biogeochemical Cycles 40(1) https://doi.org/10.1029/2025GB008767 e2025GB008767 -39.92533 -24.83905 -56.24056 -51.30116 -28.905175294117686 -54.72196308823537 2022-11-03T17:46:18 2022-11-09T04:52:09 -8066.4 -3777.1 Danish National Research Foundation DG http://dg.dk/en/ https://doi.org/10.13039/501100001732 DNRF145 Danish Center for Hadal Research, HADAL German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 528941462 Controls of Primary Production on Southern Ocean Mercury Cycling (COPPSOM) https://gepris.dfg.de/gepris/projekt/528941462 German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 GPF 20-1_053 Island Impact: Understanding the Regional Impact of South Georgia on Southern ACC Biogeochemistry and Ecosystem Function German Research Foundation DFG http://www.dfg.de/en/ https://doi.org/10.13039/501100001659 GPF 20-2_024 South Polar Carbon: Benthic Carbon Mineralization and Preservation in Southern Ocean Bathyal, Abyssal and Hadal Sediments PS133/1_9-22 -51.30116 -39.92533 -3794.8 2022-11-03T17:46:18 -51.300988 -39.923815 -3777.1 2022-11-03T19:14:25 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 MultiCorer MUC https://registry.o2a-data.de/items/3232 Deployment depth: 3792 m PS133/1_15-5 -55.22989 -26.18481 -8066.4 2022-11-07T21:22:55 -55.230534 -26.182643 -7800.8 2022-11-08T00:35:01 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 MultiCorer MUC https://registry.o2a-data.de/items/3232 Deployment depth: 8236 m PS133/1_16-1 -55.80084 -24.83905 -5002.1 2022-11-08T10:15:09 -55.799206 -24.838825 -4043.2 2022-11-08T12:25:56 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 MultiCorer MUC https://registry.o2a-data.de/items/3232 Deployment depth: 5823 m PS133/1_17-2 -56.24056 -24.94467 -7595.9 2022-11-09T04:52:09 -56.237649 -24.945127 -7717.4 2022-11-09T07:55:50 PS133/1 PS133/1 Island Impact Island Impact Cape Town, South Africa 2022-10-02T00:00:00 2022-10-02 Punta Arenas, Chile 2022-11-17T00:00:00 2022-11-17 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 Klaas, Christine Klaas, Christine doi:10.57738/BzPM_0774_2023 20220013 hdl:10013/epic.2debe45c-4340-4ef3-813c-6b04e514a47f https://www.awi.de/fileadmin/user_upload/MET/PolarsternExpeditionMaps/PS133-1.png doi:10.1594/PANGAEA.957236 Polarstern https://doi.org/10.17815/jlsrf-3-163 DBLK 8013132 MultiCorer MUC https://registry.o2a-data.de/items/3232 Deployment depth: 7921 m 339 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Event label Event Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Event DATE/TIME Date/Time http://en.wikipedia.org/wiki/ISO_8601 Time T http://dbpedia.org/resource/Time Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Date/Time LATITUDE Latitude http://en.wikipedia.org/wiki/ISO_6709 Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Latitude LONGITUDE Longitude http://en.wikipedia.org/wiki/ISO_6709 Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Longitude ELEVATION Elevation m a.s.l. http://en.wikipedia.org/wiki/Elevation elevation http://purl.obolibrary.org/obo/PATO_0001687 Length L http://dbpedia.org/resource/Length Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Elevation [m a.s.l.] DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Depth sed [m] Depth, top/min Depth top m depth http://purl.obolibrary.org/obo/PATO_0001595 Length L http://dbpedia.org/resource/Length Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Depth top [m] Depth, bottom/max Depth bot m depth http://purl.obolibrary.org/obo/PATO_0001595 maximal max Length L http://dbpedia.org/resource/Length Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 Depth bot [m] Mercury Hg µg/kg mercury Thermal decomposition amalgamation - atomic absorption spectrometer (TDA AAS), Milestone, DMA-80 Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 total Hg [µg/kg] Monomethylmercury MMHg µg/kg Gas chromatograph - cold vapor atomic fluorescence spectrometery (GC-CVAFS), Brooks Rand, Methylmercury Manual System Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 MMHg [µg/kg] Carbon, total TC % carbon C https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:27594 total https://www.oxforddictionaries.com/definition/american_english/total Dimensionless Ratio ψ Elemental analyser (EA), HEKAtech, Euro EA 3000 Pérez-Rodríguez Marta m.perez-rodriguez@tu-braunschweig.de 0000-0001-7139-3049 TC [%] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Hadal trench Mercury Methylmercury South Georgia Island South Sandwich Islands South Sandwich Trench author10758 author112470 author113373 author113374 author113375 author113376 author20257 author25451 author26865 author29244 author34470 author52245 author53657 author88997 award1575 award4456 award4457 award4458 basis1 campaign3373336 campaign48086 curlevel30 event3035785 event3035824 event3035825 event3035829 funder20472 funder21052 geocode1 geocode1599 geocode1600 geocode1601 geocode8128 inst14194 inst20748 inst32 journal6175 license21 method10668 method18399 method18402 method18403 param3 param4 param516576 param550939 param735 pi113373 ref136309 term1073131 term1073934 term26982 term30188 term38253 term38263 term38477 term38561 term41056 term43794 term43863 term43975 term47310 term51582 term53176 term68531 term69468 term71333 term76790