Oral single pulse exposure of flounder Platichthys flesus to 4-tert-octylphenol: Relations between tissue levels and estrogenic effects

An increase in plasma vitellogenin levels was seen 48 h post administration and the vitellogenin level continued to increase (from <100 ng ml−1 to 1.4 mg ml−1) until the end of the experiment 9 days after the administration of 4-tert-octylphenol.