Abstract
A study was made of correlations between fish species in a logarithm of bioconcentration factor (logBCF) of 15 organophosphate pesticides in guppy ( Lebistes reticulatus), killifish ( Oryzias latipes), goldfish ( Carassius aurapus), and white cloud mountain fish ( Tanichthys albonubes). The correlation coefficient ( γ) between the fish species (0.9458–0.9937) was considerably higher than that (0.6208–0.7642) between a logarithm of n-octanol-water partition coefficient (logP ow) and logBCF for the same 11 pesticides. If an appropriate reference fish can be selected as test fish, estimation of BCF in various species of fish by the BCF in the reference fish will be more accurate than that by P ow, because the former estimation considers the ionic characteristics, metabolism, molecular weights, etc., which are the reason for the low correlation between logP ow and logBCF.
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