{"refrec":{"BRefID":3189,"RR":"<b>Persoone, G.; Van de Vel, A.; Van Steertegem, M.; De Nayer, B.</b> (1989). Predictive value of laboratory tests with aquatic invertebrates: influence of experimental conditions. <i>Aquat. Toxicol. 14</i>: 149-166","BEntID":3189,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":null,"RefStringPartII":". <i>Aquat. Toxicol. 14</i>: 149-166","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Persoone, G.; Van de Vel, A.; Van Steertegem, M.; De Nayer, B.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Persoone, G. <i>et al.</i>","Englishabstract":"Considering the difficulty of making meaningful extrapolations of laboratory bioassay data to real world situations, short-term tests have been carried out in a factorial pattern to determine the magnitude of effect variation resulting from changes in experimental abiotic conditions.Three selected zooplankton species (the rotifer <i>Brachionus plicatilis</i>, the brine shrimp <i><i>Artemia</i> salina</i> and the waterflea <i>Daphnia magna</i>) have been exposed to increasing concentrations of two chemicals (one inorganic and one organic) in different combinations of two major environmental variables.For the brackish water rotifer <i>B. plicatilis</i> the acute toxicity of potassium dichromate and sodium laurysulphate was determined in 16 different combinations of temperature and salinity (10-17-24-31°C and 5-20-35-50 pro mille). For the marine crustacean <i>A. salina</i>, the acute toxicity of the same two chemicals was determined in 20 temperature-salinity combinations (10-15-20-25-30°C and 5-20-35-50 pro mille) and for the freshwater crustacean <i>D. magna</i>, 16 combinations of temperature and water hardness (7-14-21-28°C and 80-320-560-800 mg/l CaCO<sub>3</sub>) were assayed.The entire study comprised nearly 300 complete toxicity tests. 24-h LC<sub>50</sub> values (for <i>Artemia</i> and <i>Brachionus</i>) and 24-h EC<sub>50</sub> values (for <i>Daphnia</i>) revealed that the variation in toxicity resulting from changing environmental conditions, is both species- and chemical-specific and (within the limits of this study) ranged from a minimum of a factor 2.5 to a maximum exceeding a factor of 100. The necessity to take variations into consideration in predictive hazard assessment studies is underlined.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Predictive value of laboratory tests with aquatic invertebrates: influence of experimental conditions","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":"experimental abiotic condition","Notes":null,"AnaPub":1989,"MonPub":null,"DateUpdate":"2001-11-28","DateCreate":"2000-09-01","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:A1989T857800004","VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":3189,"PubliDate":1989,"Pagination":"149-166","XtraPublOfAnaID":null,"ISBN":null,"Volume":"14","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":42203,"SerRR":"Aquatic Toxicology. 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