title: Effects of acute exposure to deltamethrin and recovery time on common carp (Cyprinus carpio L.).
abstract: OBJECTIVE
  The aim of this study is to evaluate effects of the insecticide Decis Mega (DM; active substance deltamethrin 50 g.L(-1)) on common carp on the basis of haematological profile, oxidative stress, antioxidant enzymes and histopathology.
  
  
  METHODS
  Fish were exposed two concentrations of DM 6.56 μg.L(-1) (1DM) and 65.6 μg.L(-1) (2DM) for 96 h. Then the remaining fish were transferred into DM-free water for depuration for another period of 96 h.
  
  
  RESULTS
  Exposure to 1DM and 2DM proved effect on enzymatic activity of superoxide dismutase, catalase, glutathione reductase and on oxidative damage of cells in gills, liver and kidney (p<0.05, p<0.01). Exposure to 1DM showed differences (p<0.05, p<0.01) in hematocrit and hemoglobin in blood. Histopathological changes were observed after acute exposure to DM as well as to DM-free water in gills, liver and kidney.
  
  
  CONCLUSIONS
  This study concludes that deltamethrin has influence on the haematological parameters, activity of antioxidant enzymes and caused oxidative damage, and histopathological changes in the fish. However, antioxidant balance in the body was restored after placing the fish in clean water for 4 days, however, this time was not sufficient complete regeneration.
authors.affiliation: Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Czech Republic.
authors.forename: Alzbeta
authors.initials: A
authors.lastname: Stara
authors.affiliation: Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Czech Republic.
authors.forename: Eliska
authors.initials: E
authors.lastname: Zuskova
authors.affiliation: Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Czech Republic.
authors.forename: Jana
authors.initials: J
authors.lastname: Machova
authors.affiliation: Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Czech Republic.
authors.forename: Josef
authors.initials: J
authors.lastname: Priborsky
authors.affiliation: Research Institute of Fish Culture and Hydrobiology, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Czech Republic.
authors.forename: Josef
authors.initials: J
authors.lastname: Velisek
mesh_terms: D000818:Animals; D002347:Carps / Q000097:blood; D002374:Catalase / Q000187:drug effects / Q000378:metabolism; D005880:Gills / Q000187:drug effects*; D005980:Glutathione Reductase / Q000187:drug effects / Q000378:metabolism; D006400:Hematocrit; D006454:Hemoglobins / Q000187:drug effects*; D007306:Insecticides / Q000633:toxicity*; D007668:Kidney / Q000187:drug effects*; D008099:Liver / Q000187:drug effects*; D009570:Nitriles / Q000633:toxicity*; D018384:Oxidative Stress / Q000187:drug effects*; D011722:Pyrethrins / Q000633:toxicity*; D013482:Superoxide Dismutase / Q000187:drug effects / Q000378:metabolism; D023382:Toxicity Tests, Acute; D014874:Water Pollutants, Chemical
chemical_list: D006454:Hemoglobins; D007306:Insecticides; D009570:Nitriles; D011722:Pyrethrins; D014874:Water Pollutants, Chemical; C017180:decamethrin; D002374:Catalase; D013482:Superoxide Dismutase; D005980:Glutathione Reductase