{"refrec":{"BRefID":286384,"RR":"<b>Geerts, L.; Cox, T.J.S.; Maris, T.; Wolfstein, K.; Meire, P.; Soetaert, K.</b> (2017). Substrate origin and morphology differentially determine oxygen dynamics in two major European estuaries, the Elbe and the Schelde. <i>Est., Coast. and Shelf Sci. 191</i>: 157-170. <a href=\"https://dx.doi.org/10.1016/j.ecss.2017.04.009\" target=\"_blank\">https://dx.doi.org/10.1016/j.ecss.2017.04.009</a>","BEntID":278408,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Est., Coast. and Shelf Sci. 191</i>: 157-170. <a href=\"https://dx.doi.org/10.1016/j.ecss.2017.04.009\" target=\"_blank\">https://dx.doi.org/10.1016/j.ecss.2017.04.009</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":1,"BrackishFlag":1,"TerrestrialFlag":0,"Authorstring":"Geerts, L.; Cox, T.J.S.; Maris, T.; Wolfstein, K.; Meire, P.; Soetaert, K.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Geerts, L. <i>et al.</i>","Englishabstract":"The expansion of oxygen minimum zones (OMZ's) in estuaries can be harmful for ecology and economy, prompting the demand for expensive measures. Here we look at the oxygen dynamics in two northern temperate European estuaries, the Schelde (The Netherlands/Belgium) and the Elbe (Germany) and analysed data from the period of 2004–2009. The Schelde is characterized by two zones of increased oxygen consumption; the Elbe shows one zone of increased oxygen consumption. Despite reduction in biochemical oxygen demand in both estuaries, oxygen conditions improved in the Schelde estuary, while the oxygen minimum zone persisted in the Elbe estuary. To understand these different oxygen dynamics, we applied a one-dimensional reactive transport model to both estuaries. In the Schelde we found low oxygen concentrations to be related to organic matter and ammonium input from the major tributaries. In the Elbe, additionally to a high input of organic matter from upstream, oxygen dynamics were influenced by abrupt changes in estuarine morphology. Next, the origin of the organic matter substrate differs between the two estuaries. In the Elbe, the organic matter imported is mostly composed of algal die-off produced in the Elbe River upstream. In the Schelde the organic matter and ammonium input is mostly related to sewage input of anthropogenic origin. This implies that waste water treatment will be more effective to remediate hypoxia related problems in the Schelde than in the Elbe.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Substrate origin and morphology differentially determine oxygen dynamics in two major European estuaries, the Elbe and the Schelde","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":"Estuaries; Dissolved oxygen; Biochemical oxygen demand; Oxygen minimum zone (OMZ); Morphology; Residence time   ","OtherDescriptors":null,"Notes":null,"AnaPub":2017,"MonPub":null,"DateUpdate":"2018-05-17","DateCreate":"2017-06-22","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000402494100016","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.ecss.2017.04.009"},"refs":null,"anarec":{"AnaID":286384,"PubliDate":2017,"Pagination":"157-170","XtraPublOfAnaID":null,"ISBN":null,"Volume":"191","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":44109,"SerRR":"Estuarine, Coastal and Shelf Science. 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