{"refrec":{"BRefID":7389,"RR":"<b>Middelburg, J.J.; Barranguet, C.; Boschker, H.T.S.; Herman, P.M.J.; Moens, T.; Heip, C.H.R.</b> (2000). The fate of intertidal microphytobenthos carbon: an in situ <sup>13</sup>C-labeling study. <i>Limnol. Oceanogr. 45(6)</i>: 1224-1234. <a href=\"http://dx.doi.org/10.4319/lo.2000.45.6.1224\" target=\"_blank\">http://dx.doi.org/10.4319/lo.2000.45.6.1224</a>","BEntID":7389,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Limnol. Oceanogr. 45(6)</i>: 1224-1234. <a href=\"http://dx.doi.org/10.4319/lo.2000.45.6.1224\" target=\"_blank\">http://dx.doi.org/10.4319/lo.2000.45.6.1224</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Middelburg, J.J.; Barranguet, C.; Boschker, H.T.S.; Herman, P.M.J.; Moens, T.; Heip, C.H.R.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Middelburg, J.J. <i>et al.</i>","Englishabstract":"At two intertidal sites (one sandy and one silty, in the Scheldt estuary, The Netherlands), the fate of microphytobenthos was studied through an in situ <sup>13</sup>C pulse- chase experiment. Label was added at the beginning of low tide, and uptake of <sup>13</sup>C by algae was linear during the whole period of tidal exposure (about 27 mg m<sup>-2</sup> h<sup>-1</sup> in the top millimeter at both sites). The <sup>13</sup>C fixed by microphytobenthos was rapidly displaced toward deeper sediment layers (down to 6 cm), in particular at the dynamic, sandy site. The residence times of microphytobenthos with respect to external losses (resuspension and respiration) were about 2.4 and 5.6 d at the sandy and silly stations, respectively. The transfer of carbon from microphytobenthos to benthic consumers was estimated from the appearance of <sup>13</sup>C in bacterial biomarkers, handpicked nematodes, and macrofauna. The incorporation of <sup>13</sup>C into bacterial biomass was quantified by carbon isotope analysis of polar lipid derived fatty acids specific for bacteria. The bacterial polar lipid-derived fatty acids (i14:0, i15:0, a15:0, i16:0, and 18:1 omega 7c) showed rapid, significant transfer from benthic algae to bacteria with maximum labeling after 1 d. Nematodes became enriched after 1 h, and <sup>13</sup>C assimilation increased until day 3. Microphytobenthos carbon entered all heterotrophic components in proportion to heterotrophic biomass distribution (bacteria > macrofauna > meiofauna). Our results indicate a central role for microphytobenthos in moderating carbon flow in coastal sediments.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The fate of intertidal microphytobenthos carbon: an in situ <sup>13</sup>C-labeling study","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-04-20 01:31:27.884038","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2000,"MonPub":null,"DateUpdate":"2018-05-17","DateCreate":"2001-04-04","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000089396500002","VABBcode":null,"OpenAcc":1,"DOI":"10.4319/lo.2000.45.6.1224"},"refs":null,"anarec":{"AnaID":7389,"PubliDate":2000,"Pagination":"1224-1234","XtraPublOfAnaID":null,"ISBN":null,"Volume":"45","Issue":"6","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43511,"SerRR":"Limnology and Oceanography. 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