{"refrec":{"BRefID":53397,"RR":"<b>Seys, J.; Vincx, M.; Meire, P.</b> (1999). Spatial distribution of oligochaetes (Clitellata) in the tidal freshwater and brackish parts of the Schelde estuary (Belgium), <b><i>in</i></b>: Healy, B.M. <i>et al.</i> (Ed.) <i>Aquatic Oligochaetes: Proceedings of the 7th International Symposium on Aquatic Oligochaetes held in Presque Isle, Maine, USA, 18-22 August 1997. Developments in Hydrobiology,</i> 139: pp. 119-132","BEntID":291130,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":", <b><i>in</i></b>: Healy, B.M. <i>et al.</i> <i>Aquatic Oligochaetes: Proceedings of the 7th International Symposium on Aquatic Oligochaetes held in Presque Isle, Maine, USA, 18-22 August 1997. Developments in Hydrobiology,</i> 139: pp. 119-132","DocTypID":17,"DocType":"Book chapters","MarineFlag":0,"FreshFlag":1,"BrackishFlag":1,"TerrestrialFlag":0,"Authorstring":"Seys, J.; Vincx, M.; Meire, P.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Seys, J. <i>et al.</i>","Englishabstract":"The benthic fauna of the Belgian part of the polluted Schelde estuary, called the Zeeschelde, was studied in September-October 1996 at 143 stations along 35 transects. This study is part of the OMES research program, funded by the Flemish Government, to build an ecosystem model of the Zeeschelde in order to help policy makers to decide upon the future of this unique estuarine system. Of all organisms retained on a 250 µm mesh-size, oligochaetes were co-dominant in the mesohaline part and the only dominant group in the tidal freshwater zone. The oligochaete fauna of the ß-mesohaline zone consisted of two brackish water tubificids, <i>Heterochaeta costata</i> and <i>Tubificoides heterochaetus</i>, and the euryhaline naidid <i>Paranais litoralis</i>. The freshwater species <i>Limnodrilus hoffmeisteri</i> penetrated as far as Boerenschans. Abundance in this zone is rather low with numbers increasing with exposure. The part of the oligohaline zone that coincides with the maximum turbidity zone is extremely poor in benthos, due to high physical, chemical and biological stress, with very low numbers of <i>L. hoffmeisteri</i>, <i>Tubifex tubifex</i> and <i>P. litoralis</i>. In the tidal freshwater section, mass populations of the tubificids <i>L. hoffmeisteri</i> and <i>T. tubifex</i> occur (peak densities of almost 3.10<sup>6</sup> ind m-², maximum biomass: 25.7 g ADW m-²) with lower numbers of <i>Limnodrilus claparedeianus</i>, <i>Limnodrilus udekemianus</i> and <i>Limnodrilus profundicola</i> mainly in the part of the Zeeschelde close to Gent where better oxygen conditions are found. Oligochaetes are more abundant in finer sediments, resulting in a clear vertical gradient with low mean values in the deeper subtidal coarse sediments and highest numbers in the upper intertidal where fluid muds consolidate. In comparison with <i>L. hoffmeisteri</i>, <i>T. tubifex</i> was more abundant in the finest sediments. Vorticellidae are more common on tails of oligochaetes in the oxygen-enriched part (4-9%) than in the oxygen-deficient zone (<0.5%). Regeneration rates, being considered as a suitable measure of predation pressure, increase with salinity and size of the worms and are highly specific. In comparison with other temperate estuarine systems, the Zeeschelde has impoverished communities with oligochaetes as the dominant taxa. Though a future improvement of the water quality will definitely result in a less productive but more varied benthic community in the freshwater tidal zone, oligochaetes will probably continue to play an important role due to sustained harsh conditions.","AbstractOtherLang":null,"BibLvlCode":"AMS","StandardTitle":"Spatial distribution of oligochaetes (Clitellata) in the tidal freshwater and brackish parts of the Schelde estuary (Belgium)","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":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1999,"MonPub":null,"DateUpdate":"2018-07-19","DateCreate":"2003-11-26","SecASFANote":null,"ConfID":null,"PeerRev":0,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":53397,"PubliDate":1999,"Pagination":"119-132","XtraPublOfAnaID":null,"ISBN":"978-94-010-5829-2","Volume":"139","Issue":null,"BRefMon":11684,"BRefMonRR":"<b>Healy, B.M.; Reynoldson, T.B.; Coates, K.A. (Ed.)</b> (1999). Aquatic Oligochaetes: Proceedings of the 7th International Symposium on Aquatic Oligochaetes held in Presque Isle, Maine, USA, 18-22 August 1997. Reprinted from <i>Hydrobiologia</i>, vol. 406. <i>Developments in Hydrobiology</i>, 139. Springer Science+Business Media: Dordrecht. ISBN 978-94-010-5829-2; e-ISBN 978-94-011-4207-6. XIV, 290 pp. <a href=\"https://dx.doi.org/10.1007/978-94-011-4207-6\" target=\"_blank\">https://dx.doi.org/10.1007/978-94-011-4207-6</a>","BRefXtra":null,"BRefXtraRR":null,"SerBRefID":7270,"SerRR":"<b>Dumont, H.J. (Ed.)</b> Developments in Hydrobiology. Kluwer Academic/Springer: The Hague; London; Boston; Dordrecht.  ISSN 0167-8418","StandardTitleSer":"Developments in Hydrobiology","ISSN":"0167-8418","AbbrevSer":"Dev. Hydrobiol.","StandardTitleMon":"Aquatic Oligochaetes: Proceedings of the 7th International Symposium on Aquatic Oligochaetes held in Presque Isle, Maine, USA, 18-22 August 1997","StartPage":119,"Pages":14,"ToPubliDate":null,"BRefBibLvlCode":"MS","SerNotes":"Enkel nog digitaal bewaard","AutString":"Healy, B.M.; Reynoldson, T.B.; Coates, K.A. (Ed.)"},"monrec":null,"serrec":null,"relations":null,"relationsRev":null,"addrec":{"Line1":"K.L. Ledeganckstraat 35","Email":null,"Line2":null,"EnvName":"Belgium"},"othpubs":null,"ownerships":null,"authors":[{"AutName":"Seys","Firstname":"Jan","Initials":"J.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":291130,"AutID":9462,"OrderNr":1,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":"0000-0003-1131-6740","PersID":113,"InsID":null},{"AutName":"Vincx","Firstname":"Magda","Initials":"M.","Affiliation":null,"Discriminator":null,"CorporateFlag":0,"BEntID":291130,"AutID":670,"OrderNr":2,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":null,"PersID":19,"InsID":null},{"AutName":"Meire","Firstname":"Patrick","Initials":"P.","Affiliation":null,"Discriminator":"Patrick","CorporateFlag":0,"BEntID":291130,"AutID":5873,"OrderNr":3,"DegrID":null,"EditorFlag":0,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"InsAcronym":null,"InsFSN":null,"ORCID":"0000-0003-2599-5350","PersID":25,"InsID":null}],"mapdetails":null,"datasets":null,"monographs":null,"monparts":null,"serparts":null,"BEntOpen":null,"BEntPrivate":null,"availability":[{"BInstID":121714,"LibID":36,"BRefID":53397,"EmbargoDate":null,"FullEmbargoDate":null,"PhysMedID":16,"hasOCRd":1,"ShelfLocCode":"121714","RFID":null,"PaidValue":null,"Medium":"Server","Description":null,"Acronym":"VLIZ","Library":"Vlaams Instituut voor de Zee","DutchTerm":"Open Marien Archief","URL":null,"ClassifID":235,"Classification":"Open Marine Archive","ReqLink":null,"ClassifTypID":5,"URLLocation":"https://www.vliz.be/imisdocs/publications/","SubDir":0,"InternalReq":0,"LoggedInReq":0,"Disclaimer":"Disclaimer_OMA","DutchDisclaimer":null,"FileFormat":".pdf","FileDescr":"pdf","InsPub":1,"InsID":36,"FileFormID":6,"LendableFlag":1,"PublicFlag":1,"orderLib":"A","Notes":null,"AccConID":null,"AccessConstraint":null,"LicURL":null}],"litstyles":[{"LitStyID":3,"Style":"Conference paper"}],"thespers":null,"arch2discl":null,"SERpubls":null,"MONpubls":[{"PublName":"Springer Science+Business Media","Place":"Dordrecht"}],"pictures":[],"thestermsPath":[{"ThesaurusTerm":"Zoobenthos","ThestID":9438,"Acronym":"ASFA","ThesTermPath":"Aquatic communities > Benthos > Zoobenthos"},{"ThesaurusTerm":"Spatial distribution","ThestID":133471,"Acronym":"CAB","ThesTermPath":"Characteristics > Distribution > Spatial distribution"},{"ThesaurusTerm":"Oligochaeta","ThestID":111577,"Acronym":"CAB","ThesTermPath":"Organisms > Eukaryotes > Animals > Invertebrates > Annelida > Oligochaeta"},{"ThesaurusTerm":"Coastal areas","ThestID":114336,"Acronym":"CAB","ThesTermPath":"Regions > Areas > Coastal areas"},{"ThesaurusTerm":"Brackish water","ThestID":1161,"Acronym":"ASFA","ThesTermPath":"Water > Brackish water"},{"ThesaurusTerm":"Fresh water","ThestID":3470,"Acronym":"ASFA","ThesTermPath":"Water > Fresh water"}],"thestermsASFA":[{"ThesaurusTerm":"Brackish water"},{"ThesaurusTerm":"Coastal areas"},{"ThesaurusTerm":"Fresh water"},{"ThesaurusTerm":"Oligochaeta"},{"ThesaurusTerm":"Spatial distribution"},{"ThesaurusTerm":"Zoobenthos"}],"taxtermsASFA":[{"TaxTerm":"Clitellata"},{"TaxTerm":"Oligochaeta"}],"geotermsASFA":null,"collections":[{"Collection":"OMA - Open Marien Archief","ShortName":"OMA"},{"Collection":"OMES: Onderzoek Milieu-effecten Sigmaplan","ShortName":"omes"},{"Collection":"ScheldeMonitor","ShortName":"scheldemonitor"}],"conf":null,"proj":null,"Physdatasets":null,"spcols":{"222":{"SpName":"BMB - Belgische Mariene Bibliografie","SpColID":222,"ParSpColID":null,"TopParID":null,"ShortName":"BMB","URLLocation":null,"LibID":36,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"BMB"},"668":{"SpName":"Ecological functioning","SpColID":668,"ParSpColID":867,"TopParID":867,"ShortName":"Ecologisch Functioneren","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":867,"SpColPath":"IMIS themes/Ecologisch Functioneren"},"867":{"SpName":"IMIS themes","SpColID":867,"ParSpColID":null,"TopParID":null,"ShortName":"IMIS themes","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"IMIS themes"},"221":{"SpName":"OMA - Open Marien Archief","SpColID":221,"ParSpColID":null,"TopParID":null,"ShortName":"OMA","URLLocation":null,"LibID":36,"OpenRepoFlag":1,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"OMA"},"16":{"SpName":"OMES: Onderzoek Milieu-effecten Sigmaplan","SpColID":16,"ParSpColID":null,"TopParID":null,"ShortName":"omes","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"omes"},"27":{"SpName":"ScheldeMonitor","SpColID":27,"ParSpColID":null,"TopParID":null,"ShortName":"scheldemonitor","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"scheldemonitor"},"422":{"SpName":"Section Marine Biology","SpColID":422,"ParSpColID":null,"TopParID":null,"ShortName":"MarBiol","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"MarBiol"},"641":{"SpName":"Species diversity","SpColID":641,"ParSpColID":867,"TopParID":867,"ShortName":"Diversiteit soorten","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":867,"SpColPath":"IMIS themes/Diversiteit soorten"},"507":{"SpName":"World Register of Marine Species","SpColID":507,"ParSpColID":null,"TopParID":null,"ShortName":"WoRMS website","URLLocation":null,"LibID":null,"OpenRepoFlag":null,"SpTypID":null,"TopParIDNotWebsite":null,"SpColPath":"WoRMS website"}},"doi":null,"publs":null,"serparttypes":null,"monauthors":[{"AutName":"Healy","Initials":"B.M.","CorporateFlag":0,"BEntID":11684,"AutID":15771,"OrderNr":1,"DegrID":null,"EditorFlag":1,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"AutStrTrunc":"Healy, B.M.; Reynoldson, T.B.; Coates, K.A. (Ed.)"},{"AutName":"Reynoldson","Initials":"T.B.","CorporateFlag":0,"BEntID":11684,"AutID":15772,"OrderNr":2,"DegrID":null,"EditorFlag":1,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"AutStrTrunc":"Healy, B.M.; Reynoldson, T.B.; Coates, K.A. (Ed.)"},{"AutName":"Coates","Initials":"K.A.","CorporateFlag":0,"BEntID":11684,"AutID":15623,"OrderNr":3,"DegrID":null,"EditorFlag":1,"CorrespFlag":0,"IllustratorFlag":0,"ReviserFlag":0,"TranslatorFlag":0,"AutStrTrunc":"Healy, B.M.; Reynoldson, T.B.; Coates, K.A. (Ed.)"}],"MParts":null,"SParts":null,"hLibs":null,"langs":[{"BEntID":291130,"AbstractFlag":0,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"},{"BEntID":291130,"AbstractFlag":1,"LangID":15,"LangCode":"en","Lang":"English","DutchTerm":"Engels","LangCodeExtended":"eng"}],"urls":null,"thesterms":[{"ThesaurusTerm":"Brackish water","ThestID":1161,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Coastal areas","ThestID":114336,"Acronym":"CAB","ThesTypID":4,"ThesType":"CAB Thesaurus"},{"ThesaurusTerm":"Fresh water","ThestID":3470,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Oligochaeta","ThestID":111577,"Acronym":"CAB","ThesTypID":4,"ThesType":"CAB Thesaurus"},{"ThesaurusTerm":"Spatial distribution","ThestID":133471,"Acronym":"CAB","ThesTypID":4,"ThesType":"CAB Thesaurus"},{"ThesaurusTerm":"Zoobenthos","ThestID":9438,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxterms":[{"TaxTerm":"Clitellata","AphiaID":14165,"TaxtID":22604},{"TaxTerm":"Oligochaeta","AphiaID":2036,"TaxtID":13680}],"geoterms":null,"othterms":null,"asfacodes":null,"asfa2codes":null,"thestermsFRIS":[{"ThesaurusTerm":"Brackish water","DutchTerm":"Brakwater","ThestID":1161,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Coastal areas","DutchTerm":"Kustgebieden","ThestID":114336,"Acronym":"CAB","ThesTypID":4,"ThesType":"CAB Thesaurus"},{"ThesaurusTerm":"Fresh water","DutchTerm":"Zoet water","ThestID":3470,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"},{"ThesaurusTerm":"Oligochaeta","DutchTerm":"Oligochaeta","ThestID":111577,"Acronym":"CAB","ThesTypID":4,"ThesType":"CAB Thesaurus"},{"ThesaurusTerm":"Spatial distribution","DutchTerm":"Ruimtelijke verdeling","ThestID":133471,"Acronym":"CAB","ThesTypID":4,"ThesType":"CAB Thesaurus"},{"ThesaurusTerm":"Zoobenthos","DutchTerm":"Zoöbenthos","ThestID":9438,"Acronym":"ASFA","ThesTypID":1,"ThesType":"ASFA Thesaurus List"}],"taxtermsFRIS":[{"TaxTerm":"Clitellata","DutchTerm":"Gordelwormen","AphiaID":14165,"TaxtID":22604},{"TaxTerm":"Oligochaeta","DutchTerm":"Regenwormachtigen","AphiaID":2036,"TaxtID":13680}],"geotermsFRIS":null,"othtermsFRIS":null,"resmessage":"","complete":1,"sessions":{"newSesName":"T'Jampens, Roeland, R.","newSesDate":{"date":"2003-11-26 13:44:12.960000","timezone_type":3,"timezone":"Europe/Brussels"},"updSesName":"Bouchti, Zohra, Z.","updSesDate":{"date":"2018-07-19 08:38:49.803000","timezone_type":3,"timezone":"Europe/Brussels"}}}