title: Comparative acute toxicities of selected pesticides to Anguilla anguilla.
abstract: The acute toxicities (24, 48, 72 and 96 hr) of eight pesticides to Anguilla anguilla were determined. The organochlorine pesticide, endosulfan was the most toxic, with LC50 values in the range of 0.042 to 0.041 mg/L. Endosulfan was followed in order of decreasing toxicity by diazinon, fenitrothion, chlorpyrifos, lindane, methidathion, trichlorfon and methylparathion. When fishes were exposed to the pesticides tested they exhibited signs of restlessness, erratic swimming, convulsions and difficulty in respiration. This response was more persistent in fishes exposed to organophosphorus pesticides.
authors.affiliation: Dept. Animal Biology (Animal Physiology), Faculty of Biological Sciences, University of Valencia, Spain.
authors.forename: M D
authors.initials: MD
authors.lastname: Ferrando
authors.forename: E
authors.initials: E
authors.lastname: Sancho
authors.forename: E
authors.initials: E
authors.lastname: Andreu-Moliner
mesh_terms: D000811:Anguilla; D000818:Animals; D004390:Chlorpyrifos / Q000633:toxicity; D003976:Diazinon / Q000633:toxicity; D004726:Endosulfan / Q000633:toxicity; D005278:Fenitrothion / Q000633:toxicity; D001556:Hexachlorocyclohexane / Q000633:toxicity; D007306:Insecticides / Q000633:toxicity; D007928:Lethal Dose 50; D008743:Methyl Parathion / Q000633:toxicity; D009946:Organothiophosphorus Compounds / Q000633:toxicity; D010575:Pesticides / Q000633:toxicity*; D014236:Trichlorfon / Q000633:toxicity
chemical_list: D007306:Insecticides; D009946:Organothiophosphorus Compounds; D010575:Pesticides; D008743:Methyl Parathion; D001556:Hexachlorocyclohexane; D014236:Trichlorfon; D004390:Chlorpyrifos; D004726:Endosulfan; D005278:Fenitrothion; C005828:methidathion; D003976:Diazinon