{"refrec":{"BRefID":108976,"RR":"<b>Vegter, F.</b> (1977). The closure of the Grevelingen estuary: its influence on phytoplankton primary production and nutrient content. <i>Hydrobiologia 52(1)</i>: 67-71","BEntID":103688,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Hydrobiologia 52(1)</i>: 67-71","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":1,"TerrestrialFlag":0,"Authorstring":"Vegter, F.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Vegter, F.","Englishabstract":"The Grevelingen estuary was cut off from the sea in May 1971, and changed into stagnant Lake Grevelingen. After the closure nitrate concentrations decreased to extremely low values (less than 2 μgat NO<sub>3</sub>-N /l). Ammonia concentrations varied between 10-30 μgat NH<sub>3</sub>-N/l, comparable with the situation before the closure. Phosphate concentrations fluctuated between 1-2 μgat PO<sub>4</sub>-P/l in the estuarine phase, and increased to 10 μgat after the closure, presumably caused by decomposition of biological material and release of phosphates from the bottom. Phytoplankton primary production was not markedly affected by the damming up, and amounted to 175g C/m<sup>2</sup> in 1971.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"The closure of the Grevelingen estuary: its influence on phytoplankton primary production and nutrient content","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2025-07-02 08:33:14.980000","timezone_type":1,"timezone":"+00:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1977,"MonPub":null,"DateUpdate":"2007-03-27","DateCreate":"2007-03-27","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":108976,"PubliDate":1977,"Pagination":"67-71","XtraPublOfAnaID":null,"ISBN":null,"Volume":"52","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42943,"SerRR":"Hydrobiologia. 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ISSN 0018-8158; e-ISSN 1573-5117","StandardTitleSer":"Hydrobiologia","ISSN":"0018-8158","AbbrevSer":"Hydrobiologia","StandardTitleMon":null,"StartPage":67,"Pages":5,"ToPubliDate":null,"BRefBibLvlCode":"S","SerNotes":null},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":null,"othpubs":null,"ownerships":null,"authors":[{"AutName":"Vegter","Firstname":null,"Initials":"F.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":103688,"AutID":8103,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":null,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":null,"litstyles":null,"thespers":null,"arch2discl":null,"SERpubls":[{"PublName":"Springer","City":"The Hague"}],"MONpubls":null,"pictures":[],"thestermsPath":[{"ThesaurusTerm":"Water analysis","ThestID":9076,"Acronym":"ASFA","ThesTermPath":"Analysis > Water analysis"},{"ThesaurusTerm":"ANE, Netherlands, Grevelingen L.","ThestID":182096,"Acronym":"ASFA_GEOT","ThesTermPath":"ANE, Netherlands, Grevelingen L."},{"ThesaurusTerm":"Phytoplankton","ThestID":6208,"Acronym":"ASFA","ThesTermPath":"Aquatic communities > Plankton > Phytoplankton"},{"ThesaurusTerm":"Primary production","ThestID":6539,"Acronym":"ASFA","ThesTermPath":"Biological production > Primary production"},{"ThesaurusTerm":"Dams","ThestID":2081,"Acronym":"ASFA","ThesTermPath":"Structures > Hydraulic structures > Barrages > Dams"},{"ThesaurusTerm":"Artificial lakes","ThestID":567,"Acronym":"ASFA","ThesTermPath":"Water bodies > Inland waters > Lakes > Artificial lakes"}],"thestermsASFA":[{"ThesaurusTerm":"ANE, Netherlands, Grevelingen L."},{"ThesaurusTerm":"Artificial lakes"},{"ThesaurusTerm":"Dams"},{"ThesaurusTerm":"Phytoplankton"},{"ThesaurusTerm":"Primary production"},{"ThesaurusTerm":"Water analysis"}],"taxtermsASFA":null,"geotermsASFA":[{"GeoTerm":"Grevelingen"}],"collections":null,"conf":null,"proj":null,"Physdatasets":null,"spcols":null,"doi":null,"publs":null,"serparttypes":null,"monauthors":null,"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":103688,"AbstractFlag":-1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":103688,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":null,"thesterms":[{"ThesaurusTerm":"ANE, Netherlands, Grevelingen L.","ThestID":182096,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Artificial lakes","ThestID":567,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Dams","ThestID":2081,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Phytoplankton","ThestID":6208,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Primary production","ThestID":6539,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Water analysis","ThestID":9076,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxterms":null,"geoterms":[{"GeoTerm":"Grevelingen","GeoObjectID":17605,"GeotID":378}],"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":[{"ThesaurusTerm":"ANE, Netherlands, Grevelingen L.","DutchTerm":null,"ThestID":182096,"Acronym":"ASFA_GEOT","ThesTypID":34,"ThesType":"ASFA Geoterms"},{"ThesaurusTerm":"Artificial lakes","DutchTerm":null,"ThestID":567,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Dams","DutchTerm":"Dammen","ThestID":2081,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Phytoplankton","DutchTerm":"Fytoplankton","ThestID":6208,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Primary production","DutchTerm":"Primaire productie","ThestID":6539,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Water analysis","DutchTerm":"Wateranalyse","ThestID":9076,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxtermsFRIS":null,"geotermsFRIS":[{"GeoTerm":"Grevelingen","DutchTerm":"Grevelingenmeer"}],"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"Chisala, Chilekwa, C.","newSesDate":{"date":"2007-03-27 09:03:13.857000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Chisala, Chilekwa, C.","updSesDate":{"date":"2007-03-27 09:25:05.327000","timezone_type":3,"timezone":"Europe/Brussels"}}}