Figure 9From: Impact of polychaetes (Nereis spp. and Arenicola marina) on carbon biogeochemistry in coastal marine sediments†Release of CO2 from sediment microcosms. Intact sediment cores were either kept untreated (green) or defaunated on day 6 by deoxygenation (N2 purging). Defaunated cores were either kept without animals (black) or added Nereis diversicolor at a density of 1390 m-2 on day 13 (after Hansen and Kristensen[46]).Back to article page