title: Contrasting sensitivities to fluoride toxicity between juveniles and adults of the aquatic snail Potamopyrgus antipodarum (Hydrobiidae, Mollusca).
abstract: In contrast to aquatic vertebrates, there is scarce available information on the contrasting tolerance to fluoride of different life stages and/or sizes of aquatic invertebrates. The purpose of this study was to assess the likely differences in sensitivity between juveniles and adults of the aquatic snail Potamopyrgus antipodarum (Hydrobiidae, Mollusca) to short-term (4 days) toxicity of fluoride ion (F(-)). LC50 and EC50 values for juveniles were significantly lower than those for adults at 24, 48, 72 and 96 h. Based on our results, the use of fluoride data of bioassays with juveniles should provide more protective water quality criteria than data from adult stage.
authors.affiliation: Departamento de Ecología, Facultad de Ciencias, Universidad de Alcalá, 28871 Alcalá de Henares, Madrid, Spain. arantxagui@gmail.com
authors.forename: Aránzazu
authors.initials: A
authors.lastname: Aguirre-Sierra
authors.forename: Alvaro
authors.initials: A
authors.lastname: Alonso
authors.forename: Julio A
authors.initials: JA
authors.lastname: Camargo
mesh_terms: D000818:Animals; D004305:Dose-Response Relationship, Drug; D005459:Fluorides / Q000633:toxicity*; D007928:Lethal Dose 50; D012908:Snails / Q000187:drug effects* / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D014874:Water Pollutants, Chemical; D005459:Fluorides