{"refrec":{"BRefID":311917,"RR":"<b>Krause, J.W.; Schulz, I.K.; Rowe, K.A.; Dobbins, W.; Winding, M.H.S.; Sejr, M.K.; Duarte, C. M.; Agusti, S.</b> (2019). Silicic acid limitation drives bloom termination and potential carbon sequestration in an Arctic bloom. <i>NPG Scientific Reports 9(1)</i>: 11 pp. <a href=\"https://dx.doi.org/10.1038/s41598-019-44587-4\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-019-44587-4</a>","BEntID":304280,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>NPG Scientific Reports 9(1)</i>: 11 pp. <a href=\"https://dx.doi.org/10.1038/s41598-019-44587-4\" target=\"_blank\">https://dx.doi.org/10.1038/s41598-019-44587-4</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Krause, J.W.; Schulz, I.K.; Rowe, K.A.; Dobbins, W.; Winding, M.H.S.; Sejr, M.K.; Duarte, C. M.; Agusti, S.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Krause, J.W. <i>et al.</i>","Englishabstract":"The spring diatom bloom in the Arctic Ocean accounts for significant annual primary production leading to the most rapid annual drawdown of water-column <i>p</i>CO<i>2</i>. Late-winter waters in the Atlantic Arctic & Subarctic Provinces (AASP) have lower silicic acid concentrations than nitrate, which suggests diatom blooms may deplete Si before N. Here we test a facet of the hypothesis that silicic acid limitation terminates the spring diatom bloom in the AASP and the sinking of the senescent and dead diatoms helps drive carbon sequestration. During a 6-week study, diatoms bloomed and progressively consumed silicic acid to where it limited their growth. The onset of growth limitation was concurrent with the minimum <i>p</i>CO<i>2</i> in the surface waters and increases in both the proportion of dead diatoms and the diatom assemblage sedimentation rate. Data reanalysis within the AASP shows a highly significant and positive correlation between silicic acid and <i>p</i>CO<i>2</i> in the surface waters, but no significant relationship with nitrate and <i>p</i>CO<i>2</i> was observed unless data were smoothed. Therefore, understanding the future of the AASP spring diatom bloom requires models that explicitly consider changes in silicic acid supply as a driver of this process.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Silicic acid limitation drives bloom termination and potential carbon sequestration in an Arctic bloom","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-09 01:32:02.018989","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2019,"MonPub":null,"DateUpdate":"2019-06-04","DateCreate":"2019-06-04","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000469752800027","VABBcode":null,"OpenAcc":1,"DOI":"10.1038/s41598-019-44587-4"},"refs":null,"anarec":{"AnaID":311917,"PubliDate":2019,"Pagination":"11 pp","XtraPublOfAnaID":null,"ISBN":null,"Volume":"9","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":208093,"SerRR":"Scientific Reports (Nature Publishing Group). 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