{"refrec":{"BRefID":210864,"RR":"<b>Davoult, D.; Harlay, J.; Gentil, F.</b> (2009). Contribution of a dense population of the brittle star <i>Acrocnida brachiata</i> (Montagu) to the biogeochemical fluxes of CO<sub>2</sub> in a temperate coastal ecosystem. <i>Est. Coast. 32(6)</i>: 1103-1110. <a href=\"http://dx.doi.org/10.1007/s12237-009-9216-2\" target=\"_blank\">dx.doi.org/10.1007/s12237-009-9216-2</a>","BEntID":202786,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Est. Coast. 32(6)</i>: 1103-1110. <a href=\"https://dx.doi.org/10.1007/s12237-009-9216-2\" target=\"_blank\">https://dx.doi.org/10.1007/s12237-009-9216-2</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Davoult, D.; Harlay, J.; Gentil, F.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Davoult, D. <i>et al.</i>","Englishabstract":"The production of organic matter and calcium carbonate by a dense population of the brittle star <i>Acrocnida brachiata</i> (Echinodermata) was calculated using demographic structure, population density, and relations between the size (disk diameter) and the ash-free dry weight (AFDW) or the calcimass. During a 2-year survey in the Bay of Seine (Eastern English Channel, France), organic production varied from 29 to 50 g(AFDW) m<sup>-2</sup> year<sup>-1</sup> and CaCO<sub>3</sub> production from 69 to 104 g(CaCO<sub>3</sub>) m<sup>-2</sup> year<sup>-1</sup>. Respiration was estimated between 1.7 and 2.0 mol(CO<sub>2</sub>) m<sup>-2</sup> year<sup>-1</sup>. Using the molar ratio (psi) of CO<sub>2</sub> released: CaCO<sub>3</sub> precipitated, this biogenic precipitation of calcium carbonate would result in an additional release between 0.5 and 0.7 mol(CO<sub>2</sub>) m<sup>-2</sup> year<sup>-1</sup> that represented 23% and 26% of total CO<sub>2</sub> fluxes (sum of calcification and respiration). The results of the present study suggest that calcification in temperate shallow environments should be considered as a significant source of CO<sub>2</sub> to seawater and thus a potential source of CO<sub>2</sub> to the atmosphere, emphasizing the important role of the biomineralization (estimated here) and dissolution (endoskeletons of dead individuals) in the carbon budget of temperate coastal ecosystems.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Contribution of a dense population of the brittle star <i>Acrocnida brachiata</i> (Montagu) to the biogeochemical fluxes of CO<sub>2</sub> in a temperate coastal ecosystem","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":"Calciumcarbonate; Secondary production; Respiration; CO(2) fluxes;","OtherDescriptors":null,"Notes":null,"AnaPub":2009,"MonPub":null,"DateUpdate":"2012-01-16","DateCreate":"2011-12-22","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000271398600007","VABBcode":null,"OpenAcc":0,"DOI":"10.1007/s12237-009-9216-2"},"refs":null,"anarec":{"AnaID":210864,"PubliDate":2009,"Pagination":"1103-1110","XtraPublOfAnaID":null,"ISBN":null,"Volume":"32","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":101945,"SerRR":"Estuaries and Coasts. 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