Bioaccumulation of anthracene in Penaeus monodon (Fabricius) through contaminated feed

Abstract

Penaeus monodon is able to accumulate anthracene through food ingestion. Penaeus monodon achieved steady state of anthracene accumulation within 5 to 15 days. Faster steady state of anthracene accumulation can be established when the shrimps were fed with higher anthracene content. Bioaccumulation factor (BAF) for anthracene in Penaeus monodon is 7.71 x 10"4 ± 5.00 x 10"4 which means Penaeus monodon only accumulated 0.1% of total anthracene content introduced. Uptake rate constant, k| and depuration rate constant, k2 in this study are 4.27 x 10^± 2.55 x 10"4 day"1 and 6.14 x 10"' ± 1.16 x 10 'day"1 respectively. Penaeus monodon started to have ruptured tissues on the shrimp after feeding with 100 mg/kg anthracene contaminated feed for 5 days. Penaeus monodon was able to eliminate anthracene within 10 days in a clean environment. This is most probably due to active cytochrome P450 mixed function oxygenase (MFO) system that speeds up excretion of accumulated anthracene in Penaeus monodon.