{"refrec":{"BRefID":364349,"RR":"Glatzer, H.; Ahlf, W. (2001). Adjustment of a formulated sediment for sediment testing with Caenorhabditis elegans (Nematoda). Acta Hydrochim. Hydrobiol. 29(1): 41-46. 3.0.co;2-o\" target=\"_blank\">https://dx.doi.org/10.1002/1521-401x()29:1<41::aid-aheh41>3.0.co;2-o","BEntID":362069,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":". Acta Hydrochim. Hydrobiol. 29(1): 41-46. 3.0.co;2-o\" target=\"_blank\">https://dx.doi.org/10.1002/1521-401x()29:1<41::aid-aheh41>3.0.co;2-o","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Glatzer, H.; Ahlf, W.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Glatzer, H.; Ahlf, W.","Englishabstract":"The OECD soil, which is standardised for use in the sediment toxicity with the midge Chironomus riparius revealed inhibition of the nematode Caenorhabditis elegans in body growth length and egg production of 41.0% and 84%, respectively. 18 formulated sediments were tested to optimise the sediment composition for growth and reproduction of C. elegans. Their components were chosen to simulate native sediments, whereby different quantities and different clay minerals were tested. The mixture that we found to be optimal in our experiments consisted of 5% sphagnum peat, 70% calcitic sand, 0.5% dolomite limestone, 4.5% iron(III) oxide, and a clay combination of 1.5% chlorite and 18.5% aluminium(III) oxide. When applying this mixture to C. riparius, the new formulated sediment improved also growth in comparison to the OECD sediment.","AbstractOtherLang":"Der OECD-Boden, welcher für Toxizitätstests mit Chironomus riparius auch als Sediment standardisiert ist, erzeugt eine Verminderung des Längenwachstums von 41 % und eine Hemmung der Reproduktionsleistung von 84 % bei dem Nematoden Caenorhabditis elegans gegenüber einem optimierten künstlichen Sediment. 18 aus einzelnen Bestandteilen gemischte Sedimente wurden getestet, um eine optimale Zusammensetzung für das Wachstum und die Reproduktion von C. elegans zu finden. Die Komponenten wurden sogewählt, dass ein natürliches Sediment mit seinen Bestandteilen nachgebildet werden sollte. Die optimale Mischung, die wir durch Toxizitätstests fanden, besteht aus 5 % Sphagnumtorf, 70 % Sand, 0.5 % Dolomit, 4.5 % Eisen(III)-oxid sowie einer Tonkombination von 1.5 % Chlorit and 18.5 % Aluminium(III)-oxid. Dieses künstliche Sediment verbesserte auch das Wachstum von C. riparius im Vergleich zu dem Wachstum im OECD-Sediment.","BibLvlCode":"AS","StandardTitle":"Adjustment of a formulated sediment for sediment testing with Caenorhabditis elegans (Nematoda)","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-05-19 01:34:09.260059","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Clay, Toxicity Test, Chironomus riparius","OtherDescriptors":null,"Notes":null,"AnaPub":2001,"MonPub":null,"DateUpdate":"2023-05-16","DateCreate":"2023-05-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0,"DOI":"10.1002/1521-401x()29:1<41::aid-aheh41>3.0.co;2-o"},"refs":null,"anarec":{"AnaID":364349,"PubliDate":2001,"Pagination":"41-46","XtraPublOfAnaID":null,"ISBN":null,"Volume":"29","Issue":"1","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42012,"SerRR":"Acta Hydrochimica et Hydrobiologica. 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