{"refrec":{"BRefID":119975,"RR":"<b>Schmidt, S.; Belviso, S.; Wassmann, P.; Thouzeau, G.; Stefels, J.</b> (2007). Vernal sedimentation trends in north Norwegian fjords: temporary anomaly in <sup>234</sup>Th particulate fluxes related to <i>Phaeocystis pouchetii</i> proliferation. <i>Biogeochemistry 83(1-3)</i>: 235-244. <a href=\"https://dx.doi.org/10.1007/s10533-007-9094-2\" target=\"_blank\">https://dx.doi.org/10.1007/s10533-007-9094-2</a>","BEntID":114192,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Biogeochemistry 83(1-3)</i>: 235-244. <a href=\"https://dx.doi.org/10.1007/s10533-007-9094-2\" target=\"_blank\">https://dx.doi.org/10.1007/s10533-007-9094-2</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Schmidt, S.; Belviso, S.; Wassmann, P.; Thouzeau, G.; Stefels, J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Schmidt, S. <i>et al.</i>","Englishabstract":"We report data of a naturally occurring radionuclide, <sup>234</sup>Th, an in situ tracer, to investigate vertical export of biogenic matter during a vernal bloom of <i>Phaeocystis pouchetii</i> in the fjords of northern Norway. To optimise sampling of different stages of the bloom, three fjords with increasing oceanic influence (Balsfjord, Malangen fjord and Ullsfjord, respectively) were investigated in April 1997. Contrasting situations were encountered between the three fjords: the proliferation of <i>P. pouchetii</i> in Ullsfjord surface waters coincided with a drastic reduction of particulate 2<sup>34</sup>Th fluxes in traps, although particulate organic carbon (POC) and dimethylsulphoniopropionate (DMSP) were exported and <sup>234</sup>Th was available in surface waters. When large colonies make up a significant fraction of the vertical flux, as observed in Ullsfjord in April 1997, there may be a large and rapid change in the POC/<sup>234</sup>Th ratio, further complicating the use of <sup>234</sup>Th as a tracer for POC export. The results suggest that the proliferation of <i>Phaeocystis pouchetii</i> during vernal bloom could temporary increase OC/<sup>234</sup>Th ratio of particles and delay the particulate export of <sup>234</sup>Th, and probably of other particle-reactive species, from surface waters. ","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Vernal sedimentation trends in north Norwegian fjords: temporary anomaly in <sup>234</sup>Th particulate fluxes related to <i>Phaeocystis pouchetii</i> proliferation","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"fjord; Northern Norwegian shelf waters; particle flux; Phaeocystis;sediment trap; Th-234","OtherDescriptors":null,"Notes":null,"AnaPub":2007,"MonPub":null,"DateUpdate":"2021-02-23","DateCreate":"2008-02-20","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000246561700017","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s10533-007-9094-2"},"refs":null,"anarec":{"AnaID":119975,"PubliDate":2007,"Pagination":"235-244","XtraPublOfAnaID":null,"ISBN":null,"Volume":"83","Issue":"1-3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45092,"SerRR":"Biogeochemistry. Springer: Dordrecht; Lancaster; Boston.  ISSN 0168-2563; e-ISSN 1573-515X","StandardTitleSer":"Biogeochemistry","ISSN":"0168-2563","AbbrevSer":"Biogeochemistry","StandardTitleMon":null,"StartPage":235,"Pages":10,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":[{"YBRefID":120024,"RefStrFull":"<b>Van Leeuwe, M.A.; Stefels, J.; Belviso, S.; Lancelot, C.; Verity, P.G.; Gieskes, W.W.C. (Ed.)</b> (2007). <i>Phaeocystis</i>, major link in the biogeochemical cycling of climate-relevant elements. <i>Biogeochemistry</i>, 83(1-3). Springer: Dordrecht. 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