{"refrec":{"BRefID":135671,"RR":"<b>Hofman, P.A.G.; de Jong, S.A.; Wagenvoort, E.J.; Sandee, A.J.J.</b> (1991). Apparent sediment diffusion coefficients for oxygen and oxygen consumption rates measured with microelectrodes and bell jars: applications to oxygen budgets in estuarine intertidal sediments (Oosterschelde, SW Netherlands). <i>Mar. Ecol. Prog. Ser. 69(3)</i>: 261-272","BEntID":129553,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Mar. Ecol. Prog. Ser. 69(3)</i>: 261-272","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Hofman, P.A.G.; de Jong, S.A.; Wagenvoort, E.J.; Sandee, A.J.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Hofman, P.A.G. <i>et al.</i>","Englishabstract":"We have developed a new method to calculate the apparent sediment diffusion coefficient from oxygen gradient measurements and independently measured downward-directed oxygen production fluxes, both measured with microelectrodes (microelectrode gradient/production method). Diffusion coefficients calculated in this way differed at most 13% from the apparent sediment diffusion coefficients calculated using the bell jar/microelectrode method. The microelectrode gradient/production method was applied to emerged sediments of the Oosterschelde Estuary (SW Netherlands). The Q<sub>10</sub> value for this rate ranged from 1.3 to 2.7. Two types of oxygen consumption rates were distinguished. A light-independent oxygen consumption rate depending on diffusion from the overlying water or air was found, varying between 0.63 to 3.65 mmol O<sub>2</sub>/m<sup>2</sup>/h at different stations. This consumption increased by 12 to 14% of the gross oxygen production during the emersion period in light, in the presence of benthic microalgal production. A net outflux of maximum 45 mmol O<sub>2</sub>/m<sup>2</sup> was found for the entire emersion period.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Apparent sediment diffusion coefficients for oxygen and oxygen consumption rates measured with microelectrodes and bell jars: applications to oxygen budgets in estuarine intertidal sediments (Oosterschelde, SW Netherlands)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:32:52.928458","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1991,"MonPub":null,"DateUpdate":"2009-05-18","DateCreate":"2009-05-18","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1991EW10900006","VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":135671,"PubliDate":1991,"Pagination":"261-272","XtraPublOfAnaID":null,"ISBN":null,"Volume":"69","Issue":"3","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":43354,"SerRR":"Marine Ecology Progress Series. 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