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Comparative sensitivity of embryo-larval toxicity assays with African catfish (Clarias gariepinus) and zebra fish (Danio rerio)
Nguyen, L.T.H.; Janssen, C.R. (2001). Comparative sensitivity of embryo-larval toxicity assays with African catfish (Clarias gariepinus) and zebra fish (Danio rerio). Environ. Toxicol. 16(6): 566-571
In: Environmental Toxicology. John Wiley & Sons: New York, N.Y.. ISSN 1520-4081; e-ISSN 1522-7278, more
Peer reviewed article  
Keywords
    Chemical elements > Metals > Heavy metals
    Chemicals > Organic compounds > Organophosphorus compounds > Pesticides > Organophosphorus pesticides > Ectoparasiticides > Organophosphorus ectoparasiticides > Organothiophosphate insecticides > Organothiophosphate acaricides > Ectoparasiticides > Malathion
    Comparative studies
    Developmental stages > Embryos
    Developmental stages > Larvae
    Freshwater environment
    Growth
    Hatching
    Malformations
    Organophosphorus compounds
    Pentachlorophenol
    Pesticides
    Pesticides > Insecticides
    Population functions > Mortality
    Sensitivity
    Sensitivity
    Tests > Toxicity tests
    Toxicity
    Water pollution
    Animalia [WoRMS]; Clarias gariepinus (Burchell, 1822) [WoRMS]; Clariidae Bonaparte, 1845 [WoRMS]; Cyprinidae Rafinesque, 1815 [WoRMS]; Pisces [WoRMS]; Vertebrata [WoRMS]
    Fresh water
Authors  Top 
  • Nguyen, L.T.H.
  • Janssen, C.R., more
Abstract
    Embryo-larval toxicity tests with the African catfish (Clarias gariepinus) were conducted with five chemicals (Cr, Cd, Zn, NaPCP and malathion) and three environmental samples. The sensitivity of the 5-day assay was compared to that of the 12-day embryo-larval toxicity tests with the zebra fish (Danio rerio). The ratios of the C. gariepinus and D. rerio LC50 values ranged from 0.4 for Cr to 8.9 for Zn. The ratios of subchronic values ranged from 0.25 for NaPCP to 3.1 for Cd indicating a more comparable sensitivity of the two species. For the three sediment pore waters, the ratios were 0.6, 1.1, and 2.4 and the subchronic values were identical for the two species. The results suggest that, considering the short-test duration and its sensitivity, the 5-day embryo-larval tests with C. gariepinus may be a potential alternative for short-term embryo-larval toxicity testing with fish.
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