In Situ Analysis of Gut Residue of Corophium Volutator (Pallas) by Electron Probe Microanalysis after Exposure to Barytes Spiked Sediments

Abstract

Corophium volutator (Pallas) has been recommended by the paris Commission as one of the standard species for testing chemical used in offshore oil and gas exploration/production. In the present study, gut contents of Corophium volutator have been analysed by electron probe microanalysis (EPMA) for BaSO4 and other heavy metal impurities after exposure tto spiked sediments following a standard ASTM sediment bioassay protocol. Results show that depuration of Corophium gut for 48 h in clean filtered seawater after exposure to sediments containing barites, prior to whole body metal analysis, is required to reflect the true metal burdens

Keywords

• corophium volutator (pallas)
• electron probe microanalysis (epma)
• barytes
• gut residue