{"refrec":{"BRefID":246793,"RR":"<b>Laurenceau-Cornec, C; Trull, W; Davies, M; Bray, G; Doran, J; Planchon, F; Carlotti, F; Jouandet, P; Cavagna, A.-J.; Waite, M; Blain, S</b> (2015). The relative importance of phytoplankton aggregates and zooplankton fecal pellets to carbon export: insights from free-drifting sediment trap deployments in naturally iron-fertilised waters near the Kerguelen Plateau. <i>Biogeosciences 12(4)</i>: 1007-1027. <a href=\"http://dx.doi.org/10.5194/bg-12-1007-2015\" target=\"_blank\">dx.doi.org/10.5194/bg-12-1007-2015</a>","BEntID":238493,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Biogeosciences 12(4)</i>: 1007-1027. <a href=\"https://dx.doi.org/10.5194/bg-12-1007-2015\" target=\"_blank\">https://dx.doi.org/10.5194/bg-12-1007-2015</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Laurenceau-Cornec, C; Trull, W; Davies, M; Bray, G; Doran, J; Planchon, F; Carlotti, F; Jouandet, P; Cavagna, A.-J.; Waite, M; Blain, S","OrigTitleTranslFlag":0,"Authorstringtrunc":"Laurenceau-Cornec, C <i>et al.</i>","Englishabstract":"The first KErguelen Ocean and Plateau compared Study (KEOPS1), conducted in the naturally iron-fertilised Kerguelen bloom, demonstrated that fecal material was the main pathway for exporting carbon to the deep ocean during summer (January–February 2005), suggesting a limited role of direct export via phytodetrital aggregates. The KEOPS2 project reinvestigated this issue during the spring bloom initiation (October–November 2011), when zooplankton communities may exert limited grazing pressure, and further explored the link between carbon flux, export efficiency and dominant sinking particles depending upon surface plankton community structure. Sinking particles were collected in polyacrylamide gel-filled and standard free-drifting sediment traps (PPS3/3), deployed at six stations between 100 and 400 m, to examine flux composition, particle origin and their size distributions. Results revealed an important contribution of phytodetrital aggregates (49 ± 10 and 45 ± 22% of the total number and volume of particles respectively, all stations and depths averaged). This high contribution dropped when converted to carbon content (30 ± 16% of total carbon, all stations and depths averaged), with cylindrical fecal pellets then representing the dominant fraction (56 ± 19%).At 100 and 200 m depth, iron- and biomass-enriched sites exhibited the highest carbon fluxes (maxima of 180 and 84 ± 27 mg C m<sup>-2</sup> d<sup>-1</sup>, based on gel and PPS3/3 trap collection respectively), especially where large fecal pellets dominated over phytodetrital aggregates. Below these depths, carbon fluxes decreased (48 ± 21% decrease on average between 200 and 400 m), and mixed aggregates composed of phytodetritus and fecal matter dominated, suggesting an important role played by physical aggregation in deep carbon export.Export efficiencies determined from gels, PPS3/3 traps and <sup>234</sup>Th disequilibria (200 m carbon flux/net primary productivity) were negatively correlated to net primary productivity with observed decreases from ~ 0.2 at low-iron sites to ~ 0.02 at high-iron sites. Varying phytoplankton communities and grazing pressure appear to explain this negative relationship. Our work emphasises the need to consider detailed plankton communities to accurately identify the controls on carbon export efficiency, which appear to include small spatio-temporal variations in ecosystem structure.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The relative importance of phytoplankton aggregates and zooplankton fecal pellets to carbon export: insights from free-drifting sediment trap deployments in naturally iron-fertilised waters near the Kerguelen Plateau","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2015,"MonPub":null,"DateUpdate":"2015-06-02","DateCreate":"2015-05-21","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000349794900008","VABBcode":null,"OpenAcc":1,"DOI":"10.5194/bg-12-1007-2015"},"refs":null,"anarec":{"AnaID":246793,"PubliDate":2015,"Pagination":"1007-1027","XtraPublOfAnaID":null,"ISBN":null,"Volume":"12","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":68092,"SerRR":"<b>Gattuso, J.P.; Kesselmeier, J. (Ed.)</b> Biogeosciences. Copernicus Publications: Göttingen.  ISSN 1726-4170; e-ISSN 1726-4189","StandardTitleSer":"Biogeosciences","ISSN":"1726-4170","AbbrevSer":"Biogeosciences","StandardTitleMon":null,"StartPage":1007,"Pages":21,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Laurenceau-Cornec","Firstname":"E","Initials":"C","Affiliation":"Univ Tasmania, Inst Marine & Antarctic Studies, CSIRO UTAS Quantitat Marine Sci PhD Program, Hobart, Tas 7001, Australia.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194589,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Trull","Firstname":"T","Initials":"W","Affiliation":"Univ Tasmania, Antarctic Climate & Ecosyst Cooperat Res Ctr, Hobart, Tas 7001, Australia.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194591,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Davies","Firstname":"D","Initials":"M","Affiliation":"Univ Tasmania, Antarctic Climate & Ecosyst Cooperat Res Ctr, Hobart, Tas 7001, Australia.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194593,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Bray","Firstname":"S","Initials":"G","Affiliation":"Univ Tasmania, Antarctic Climate & Ecosyst Cooperat Res Ctr, Hobart, Tas 7001, Australia.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194594,"OrderNr":4,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Doran","Firstname":null,"Initials":"J","Affiliation":"Univ Western Australia M470, UWA Oceans Inst, Crawley, WA 6009, Australia.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194595,"OrderNr":5,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Planchon","Firstname":null,"Initials":"F","Affiliation":"Univ Brest, Lab Sci Environm Marin LEMAR, CNRS, IRD,UMR6539,IUEM,Technopole Brest Iroise, F-29280 Plouzane, France.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194596,"OrderNr":6,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Carlotti","Firstname":null,"Initials":"F","Affiliation":"Aix Marseille Univ, CNRS, IRD, MIO, F-13288 Marseille 09, France.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194597,"OrderNr":7,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Jouandet","Firstname":"M","Initials":"P","Affiliation":"Aix Marseille Univ, CNRS, IRD, MIO, F-13288 Marseille 09, France.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194598,"OrderNr":8,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Cavagna","Firstname":"Anne-Julie","Initials":"A.-J.","Affiliation":"Vrije Universiteit Brussel, Analytical and Environmental Geochemistry Dept.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194599,"OrderNr":9,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":"AMGC","InsFSN":"Vrije Universiteit Brussel; Faculteit Wetenschappen & Bio-ingenieurswetenschappen; Vakgroep Chemie; Analytical, Environmental and Geochemistry","ORCID":null,"PersID":11290,"InsID":40},{"AutName":"Waite","Firstname":"A","Initials":"M","Affiliation":"Univ Western Australia M470, UWA Oceans Inst, Crawley, WA 6009, Australia.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194600,"OrderNr":10,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null},{"AutName":"Blain","Firstname":null,"Initials":"S","Affiliation":"Univ Paris 06, Univ Paris 04, Lab Oceanog Microbienne, UMR 7621,Observ Oceanol, F-66650 Banyuls Sur Mer, France.","Discriminator":null,"CorporateFlag":0,"BEntID":238493,"AutID":194602,"OrderNr":11,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":271816,"LibID":36,"BRefID":246793,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"271816","RFID":null,"PaidValue":null,"Medium":"Server","Description":"VLIZ Open Access","Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Open access","URL":null,"ClassifID":53,"Classification":"Open access","ReqLink":null,"ClassifTypID":1,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":null,"InternalReq":0,"LoggedInReq":0,"Disclaimer":null,"DutchDisclaimer":null,"FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Copernicus Publications","City":"Göttingen"}],"MONpubls":null,"pictures":[],"thestermsPath":null,"thestermsASFA":null,"taxtermsASFA":null,"geotermsASFA":null,"collections":[{"Collection":"OMA - Open Marien Archief","ShortName":"OMA"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"222":{"SpName":"BMB - Belgische Mariene Bibliografie","SpColID":222,"ParSpColID":null,"TopParID":null,"ShortName":"BMB","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"BMB"},"221":{"SpName":"OMA - Open Marien Archief","SpColID":221,"ParSpColID":null,"TopParID":null,"ShortName":"OMA","URLLocation":null,"LibID":36,"OpenRepoFlag":1,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OMA"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":238493,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":[{"URL":"https://dx.doi.org/10.5194/bg-12-1007-2015","externalID":"10.5194/bg-12-1007-2015","URLTypeCode":"DOI","URLID":39730,"URLTypID":13,"URLType":"DOI","URLPrefix":"http://dx.doi.org/"}],"thesterms":null,"taxterms":null,"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":null,"taxtermsFRIS":null,"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Lyssens, Liesbeth, L.","newSesDate":{"date":"2015-05-21 21:40:41.653000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2015-06-02 08:13:15.567000","timezone_type":3,"timezone":"Europe/Brussels"}}}