{"refrec":{"BRefID":210862,"RR":"<b>Barron, C.; Duarte, C.M.; Frankignoulle, M.; Borges, A.V.</b> (2006). Organic carbon metabolism and carbonate dynamics in a Mediterranean seagrass (<i>Posidonia oceanica</i>) meadow. <i>Est. Coast. 29(3)</i>: 417-426","BEntID":202784,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Est. Coast. 29(3)</i>: 417-426","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Barron, C.; Duarte, C.M.; Frankignoulle, M.; Borges, A.V.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Barron, C. <i>et al.</i>","Englishabstract":"We measured monthly dissolved oxygen (DO) changes in situ benthic incubations from March 2001 to October 2002 in a <i>Posidonia oceanica</i> meadow and unvegetated sediments of Magalluf Bay (Mallorca Island, Spain) to determine gross primary production (GPP), community respiration (R), and net community production (NCP). From June 2001 to October 2002, we also measured fluxes of dissolved inorganic carbon (DIC) and total alkalinity (TAlk). The yearly integrated metabolic rates based on DO changes show that the <i>P. oceanica</i> communities are net autotrophic while the metabolic rates in the unvegetated benthic communities are nearly balanced. Higher calcium carbonate (CaCO<sub>3</sub>) cycling, both in terms of production and dissolution, was observed in <i>P. oceanica</i> communities than in unvegetated benthic communities. In the <i>P. oceanica</i> meadow, the annual release of CO<sub>2</sub> from net CaCO<sub>3</sub> production corresponds to almost half of the CO<sub>2</sub> uptake by NCP based on DIC incubations. In unvegetated benthic communities, the annual uptake Of CO<sub>2</sub> from net CaCO<sub>3</sub> dissolution almost fully compensates the CO<sub>2</sub> release by NCP based on DIC incubations. CaCO<sub>3</sub> dynamics is potentially a major factor in CO<sub>2</sub> benthic fluxes in seagrass and carbonate-rich temperate coastal ecosystems.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Organic carbon metabolism and carbonate dynamics in a Mediterranean seagrass (<i>Posidonia oceanica</i>) meadow","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":2006,"MonPub":null,"DateUpdate":"2012-01-16","DateCreate":"2011-12-22","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000239912400007","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":210862,"PubliDate":2006,"Pagination":"417-426","XtraPublOfAnaID":null,"ISBN":null,"Volume":"29","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":101945,"SerRR":"Estuaries and Coasts. 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