{"refrec":{"BRefID":367072,"RR":"<b>van de Velde, S.J.; Hylén, A.; Eriksson, M.; James, R.K.; Kononets, M.Y.; Robertson, E.K.; Hall, P.O.J.</b> (2023). Exceptionally high respiration rates in the reactive surface layer of sediments underlying oxygen-deficient bottom waters. <i>Proc. - Royal Soc., Math. Phys. Eng. Sci. 479(2275)</i>: 20230189. <a href=\"https://dx.doi.org/10.1098/rspa.2023.0189\" target=\"_blank\">https://dx.doi.org/10.1098/rspa.2023.0189</a>","BEntID":364796,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>Proc. - Royal Soc., Math. Phys. Eng. Sci. 479(2275)</i>: 20230189. <a href=\"https://dx.doi.org/10.1098/rspa.2023.0189\" target=\"_blank\">https://dx.doi.org/10.1098/rspa.2023.0189</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"van de Velde, S.J.; Hylén, A.; Eriksson, M.; James, R.K.; Kononets, M.Y.; Robertson, E.K.; Hall, P.O.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"van de Velde, S.J. <i>et al.</i>","Englishabstract":"Organic carbon (OC) burial efficiency, which relates the OC burial rate to respiration in the seafloor, is a critical parameter in the reconstruction of past marine primary productivities. The current accepted theory is that sediments underlying oxygen-deficient (anoxic) bottom waters have low respiration rates and high OC burial efficiencies. By combining novel in situ measurements in anoxic basins with reaction-transport modelling, we demonstrate that sediments underlying anoxic bottom waters have much higher respiration rates than commonly assumed. A major proportion of the carbon respiration is concentrated in the top millimeter—the so-called ‘reactive surface layer’—which is likely a feature in approximately 15% of the coastal seafloor. When re-evaluating previously published data in light of our results, we conclude that the impact of bottom-water anoxia on OC burial efficiencies in marine sediments is small. Consequently, reconstructions of past marine primary productivity in a predominantly anoxic ocean based on OC burial rates might be underestimated by up to an order of magnitude.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Exceptionally high respiration rates in the reactive surface layer of sediments underlying oxygen-deficient bottom waters","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-04 01:31:49.590497","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"marine sediment;carbon cycle;geochemistry;ORGANIC-CARBON PRESERVATION;BACTERIAL SULFATE REDUCTION;EASTERN GOTLAND BASIN;MARINE-SEDIMENTS;SEA-FLOOR;BENTHIC MINERALIZATION;MATTER PRESERVATION;FLUX MEASUREMENTS;EARLY DIAGENESIS;BURIAL","OtherDescriptors":null,"Notes":null,"AnaPub":2023,"MonPub":null,"DateUpdate":"2025-09-18","DateCreate":"2023-09-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:001030235500006","VABBcode":null,"OpenAcc":1,"DOI":"10.1098/rspa.2023.0189"},"refs":null,"anarec":{"AnaID":367072,"PubliDate":2023,"Pagination":"20230189","XtraPublOfAnaID":null,"ISBN":null,"Volume":"479","Issue":"2275","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":181180,"SerRR":"Proceedings of the Royal Society. 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