Digestive determinants of benzo[a]pyrene and phenanthrene bioaccumulation by a deposit-feeding polychaete

Journal Article · Sun Nov 01 04:00:00 EST 1998 · Environmental Toxicology and Chemistry

DOI:https://doi.org/10.1897/1551-5028(1998)017<2254:DDOBAP>2.3.CO;2· OSTI ID:675441

Penry, D L; Weston, D P ^[1]

---

1. Univ. of California, Berkeley, CA (United States). Dept. of Integrative Biology

The uptake of hydrophobic contaminants from ingested sediment can contribute significantly to body burdens of deposit feeders, and feeding behavior and digestive physiology can play important roles in bioaccumulation. The authors examined the uptake of polycyclic aromatic hydrocarbons (PAHs) by the deposit-feeding polychaete Abarenicola pacifica in experiments in which worms were first acclimated to low or high organic carbon sediments with 0.08 or 0.45% total organic carbon, respectively and then transferred to low or high organic carbon test sediments contaminated with radiolabeled phenanthrene or benzo[a]pyrene. Ingestion rate was measurements are essential in many types of bioaccumulation studies because differences in ingestion rates between sediment types may confound some traditional measures of bioavailability. Physiological acclimation to the low or high organic carbon sediments did not appear to affect PAH uptake from the test sediments, but acclimation did affect biotransformation capabilities, particularly for phenanthrene.

• Sponsoring Organization: USDOE
• OSTI ID: 675441
• Journal Information: Environmental Toxicology and Chemistry, Journal Name: Environmental Toxicology and Chemistry Journal Issue: 11 Vol. 17; ISSN ETOCDK; ISSN 0730-7268
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
56 BIOLOGY AND MEDICINE
APPLIED STUDIES
ANNELIDS
BENZOPYRENE
BIOLOGICAL ACCUMULATION
BIOLOGICAL AVAILABILITY
BIOLOGICAL INDICATORS
INTESTINAL ABSORPTION
PHENANTHRENE
WATER POLLUTION