{"refrec":{"BRefID":10903,"RR":"<b>Centeno, M.D.; Persoone, G.; Goyvaerts, M.P.</b> (1995). Cyst-based toxicity tests: 9. The potential of <i>Thamnocephalus platyurus</i> as test species in comparison with <i>Streptocephalus proboscideus</i> (Crustacea, Branchiopoda, Anostraca). <i>Environmental Toxicology and Water Quality 10(4)</i>: 275-282","BEntID":10903,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Environmental Toxicology and Water Quality 10(4)</i>: 275-282","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Centeno, M.D.; Persoone, G.; Goyvaerts, M.P.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Centeno, M.D.; Persoone, G.; Goyvaerts, M.P.","Englishabstract":"The potential of the larvae of the freshwater anostracan crustacean <i>Thamnocephalus platyurus</i> has been evaluated as an alternative to those of the related species <i>Streptocephalus proboscideus</i>, used so far as the test organism in the standard Streptoxkit F test. In line with the former cyst-based toxicity test method, the hatching of dried <i>T. platyurus</i> eggs, the molting of larvae, and the sensitivity of the latter to toxicants were assessed. The acute toxicity of 10 pure chemicals, 4 solid waste leachates, and 5 sediment pore waters to <i>T. platyurus</i> nauplii was determined according to the standard Streptoxkit F test protocol. Hatching success and reliability of <i>T. platyurus</i> cysts proved better than that of <i>S. proboscideus</i> cysts after 20 h incubation in standard conditions; the hatching percentage after 24 h was slightly improved by diluting the Environmental Protection Agency medium to 1: 8 with deionized water. The sensitivity of <i>T. platyurus</i> nauplii to pure toxicants and wastes was at least equal to, and in many cases even higher than, that of <i>S. proboscideus</i> larvae. Generally, precision of the toxicity tests with <i>T. platyurus</i> was better than that of the <i>S. proboscideus</i> assay, especially for the pure chemicals tested. Consequently, the standard operational testing protocol of the Streptoxkit F has been slightly modified with replacement of <i>S. proboscideus</i> by <i>T. platyurus</i> as a test species. The Streptoxkit F has consequently been renamed to Thamnotoxkit F for use in cost-effective routine acute toxicity testing of chemicals and wastes.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Cyst-based toxicity tests: 9. 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