title: Use of newborn Girardia tigrina (Girard, 1850) in acute toxicity tests.
abstract: Acute toxicity tests, exposing Girardia tigrina to potassium dichromate (K(2)Cr(2)O(7)), showed good reproducibility. The 95% confidence intervals among tests were 0.0262+/-0.0141 g for 48-h LC(50) (N=6) and 0.0129+/-0.0078 g for 96-h LC(50) (N=5). The 96-h LC(50) for G. tigrina was below that of oligochaetes and above that of cladocera.
authors.affiliation: Departamento de Biologia, Universidade Federal da Bahia, 40. 170-290 Salvador, Bahia, Brazil.
authors.forename: D
authors.initials: D
authors.lastname: de Lucca C Preza
authors.forename: D H
authors.initials: DH
authors.lastname: Smith
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D002424:Caustics / Q000633:toxicity*; D010932:Planarians; D011192:Potassium Dichromate / Q000633:toxicity*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D018675:Toxicity Tests / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D002424:Caustics; D014874:Water Pollutants, Chemical; D011192:Potassium Dichromate