title: Investigation of acute toxicity of permethrin on guppies Poecilia reticulata.
abstract: Permethrin, a synthetic pyrethroid pesticide and potential toxic pollutant contaminating aquatic ecosystems, was investigated in the present study for acute toxicity. Guppy fish (Poecilia reticulata) were selected for the bioassay experiments. The experiments were repeated 3 times and the 48-h LC(50) was determined for the guppies. The static test method of acute toxicity test was used. Water temperature was regulated at 20+/-1 degrees C. In addition, behavioral changes at each permethrin concentration were observed for the individual fish. Data obtained from the permethrin acute toxicity tests were evaluated using the probit analysis statistical method. The 48-h LC(50) value for guppy was estimated as 245.7 microg/l. Values in the range of 0.05-97.0 microg/l have been reported for various other fish species.
authors.affiliation: Department of Biology Education, Gazi University, Teknikokullar, Ankara 06500, Turkey.
authors.forename: Sibel
authors.initials: S
authors.lastname: Başer
authors.forename: Figen
authors.initials: F
authors.lastname: Erkoç
authors.forename: Mahmut
authors.initials: M
authors.lastname: Selvi
authors.forename: Oner
authors.initials: O
authors.lastname: Koçak
mesh_terms: D000818:Animals; D001681:Biological Assay; D007306:Insecticides / Q000633:toxicity*; D007928:Lethal Dose 50; D008297:Male; D026023:Permethrin / Q000633:toxicity*; D011036:Poecilia; D013696:Temperature; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D007306:Insecticides; D014874:Water Pollutants, Chemical; D026023:Permethrin