Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Seadoi:10.18710/JHB371DataverseNO2020-05-081Sert, Muhammed Fatih; D'Andrilli, Juliana; Gründger, Friederike; Niemann, Helge; Granskog, Mats A.; Pavlov, Alexey K.; Ferré, Bénédicte; Silyakova, Anna, 2020, "Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Sea", https://doi.org/10.18710/JHB371, DataverseNO, V1Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Seadoi:10.18710/JHB371Sert, Muhammed FatihD'Andrilli, JulianaGründger, FriederikeNiemann, HelgeGranskog, Mats A.Pavlov, Alexey K.Ferré, BénédicteSilyakova, AnnaSilyakova, AnnaUiT The Arctic University of Norway2017-05-22Coastal Svalbard and Barents SeaR223259DataverseNOUiT The Arctic University of NorwaySert, Muhammed FatihSert, Muhammed Fatih2020-04-15Earth and Environmental Sciencescold seepsmethane hydratemethane oxidationmethane oxidizing bacteriaDissolved organic matterarctic oceanAbstract: Dissociating gas hydrates, submerged permafrost, and gas bearing sediments release methane to the water column from a multitude of seeps in the Arctic Ocean. The seeping methane dissolves and supports the growth of aerobic methane oxidizing bacteria (MOB), but the effect of seepage and seep related biogeochemical processes on water column dissolved organic matter (DOM) dynamics is not well constrained. We compared dissolved methane, nutrients, chlorophyll, and particulate matter concentrations and methane oxidation (MOx) rates from previously characterized seep and non-seep areas at the continental margin of Svalbard and the Barents Sea in May and June 2017. DOM molecular composition was determined by Electrospray Ionization Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS). We found that the chemical diversity of DOM was 3 to 5 % higher and constituted more protein- and lipid-like composition near methane seeps when compared to non-seep areas. Distributions of nutrients, chlorophyll, and particulate matter however, were essentially governed by the water column hydrography and primary production. We hypothesised that the organic intermediates directly derived from seepage or indirectly from seep-related biogeochemical processes, e.g. MOx, can modify the composition of DOM leading to distinct DOM molecular-level signatures in the water column at cold seeps.2017-05-162017-06-28Arctic Oceanocean9.441935.4324275.838879.00142oceanographic dataNot available until 2020-01-01Sert MF, D’Andrilli J, Gründger F, Niemann H, Granskog MA, Pavlov AK, Ferré B and Silyakova A (2020) Compositional Differences in Dissolved Organic Matter Between Arctic Cold Seeps Versus Non-Seep Sites at the Svalbard Continental Margin and the Barents Sea. Front. Earth Sci. 8:552731. doi: 10.3389/feart.2020.55273110.3389/feart.2020.552731Sert MF, D’Andrilli J, Gründger F, Niemann H, Granskog MA, Pavlov AK, Ferré B and Silyakova A (2020) Compositional Differences in Dissolved Organic Matter Between Arctic Cold Seeps Versus Non-Seep Sites at the Svalbard Continental Margin and the Barents Sea. Front. Earth Sci. 8:552731. doi: 10.3389/feart.2020.55273100_readme.txttext/plain1_ms_data.RDataapplication/x-rlang-transport2_community.RDataapplication/x-rlang-transportctd.txttext/plainenv_var.txttext/plainmethane_mox.txttext/plainstations.txttext/plain