抄録
The effect of 12 known and suspected endocrine disrupting chemicals (EDCs) on the demographic parameters of Tigriopus japonicus was evaluated. Less than 24-h old nauplii were exposed to four concentrations of EDCs at 25°C. Developmental rate was the most sensitive parameter for 4-nonylphenol and bisphenol A with effects detected at 10 μg/L, 100 μg/L for testosterone, methoprene, and octylphenol and 300 μg/L for fenitrothion. Mefenacet and isoprothiolane affected sex ratio at 500 μg/L and 1000 μg/L, respectively. Estradiol-17 β at 100 μg/L increased nauplii production. Diazinon, pyroquilon and iprofenfos as high as 500 μg/L had no detectable effects on any of the endpoints. These results suggest that demographic parameters are useful in vivo indicators of potential endocrine disrupting chemicals in marine invertebrates.
