{"refrec":{"BRefID":38056,"RR":"<b>Gattuso, J.P.; Pichon, M.; Jaubert, J.; Marchioretti, M.; Frankignoulle, M.</b> (1996). Primary production, calcification and air-sea CO<sub>2</sub> fluxes in coral reefs: organism, ecosystem and global scales. <i>Bull. Inst. Océanogr. Monaco 14(4)</i>: 39-46","BEntID":38056,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":". <i>Bull. Inst. Océanogr. Monaco 14(4)</i>: 39-46","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Gattuso, J.P.; Pichon, M.; Jaubert, J.; Marchioretti, M.; Frankignoulle, M.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Gattuso, J.P. <i>et al.</i>","Englishabstract":"We summarize here data on primary productivity, calcification and air-sea CO<sub>2</sub> fluxes collected from a reef coral, a reef flat and a reef mesocosm and present a discussion on the global effect of marine calcification on atmospheric CO<sub>2</sub>. The respective effects of CO<sub>2</sub> uptake by photosynthesis and CO<sub>2</sub  release by respiration and calcification on the carbon budget of a zooxanthellate scleractinian coral were investigated in the laboratory. The air-sea CO<sub>2</sub>flux was inferred by modelling the CO<sub>2</sub> system. Its integration showed that the direction of the net daily flux is from sea to air (evasion). Measurements of gross production and respiration of the \"Tiahura barrier reef\" (Moorea, French Polynesia) showed that the reef displayed a very small excess production. Net calcification was positive both during the day and at night. The measured air-sea CO<sub>2</sub> fluxes were close to zero in the open ocean but displayed a strong daily pattern at the reef front and the back reef. Integration of the fluxes over 24-h showed that the reef ecosystem was a source of CO<sub>2</sub> to the atmosphere. Other investigations included a comparison of the main metabolic features of a 40 m<sup>3</sup> reef mesocosm set up in Monaco to those of a Red Sea coral patch enclosed in situ in a 6 m<sup>3</sup> chamber. The budget of organic production/consumption of the mesocosm reef was slightly negative while that of the coral patch was slightly positive. The captive reef and the coral patch exhibited high rates of precipitation and dissolution of CaCO<sub>3</sub> but the 24 h budgets of both systems were positive (net CaCO<sub>3</sub> deposition). The role of marine calcification as a source of dissolved CO<sub>2</sub> is due to chemical equilibria and is therefore a function of the partial pressure of CO<sub>2</sub> is seawater (pCO sub(2)). The present ratio of released CO<sub>2</sub>/precipitated carbonate is 0.6 and calculations show that it will rise up to 0.76 for a doubling of the pre-industrial <i>p</i>CO<sub>2</sub>. This would result in a net CO<sub>2</sub> source of approximately 2% of the present day fossil fuel flux.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Primary production, calcification and air-sea CO<sub>2</sub> fluxes in coral reefs: organism, ecosystem and global scales","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":1996,"MonPub":null,"DateUpdate":"2021-03-01","DateCreate":"2003-08-05","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":38056,"PubliDate":1996,"Pagination":"39-46","XtraPublOfAnaID":null,"ISBN":null,"Volume":"14","Issue":"4","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42475,"SerRR":"Bulletin de l'Institut océanographique, Monaco. Musée Océanographique: Monaco.  ISSN 0078-9690","StandardTitleSer":"Bulletin de l'Institut océanographique, Monaco","ISSN":"0078-9690","AbbrevSer":"Bull. Inst. Océanogr. Monaco","StandardTitleMon":null,"StartPage":39,"Pages":8,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":[{"YBRefID":38068,"RefStrFull":"<b>Allemand, D.; Cuif, J.P.</b> (1996). Biomineralization 93: 7<sup>th</sup> International Symposium on Biomineralization. Monaco - 17-20 November 1993. <i>Bulletin de l'Institut océanographique, Monaco</i>, 14. Musée Océanographique: Monaco. ISBN 2-7260-0179-3. 432 pp.","RelID":10,"Relation":"Also appears in","StandardTitle":"Biomineralization 93: 7<sup>th</sup> International Symposium on Biomineralization. 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