academic article

• Eutrophication and trophic structure in response to the presence of the eelgrass Zostera noltii.  Marine Biology.  156:2107-2120. 2009
• delta(15)N and delta(13)C in the Mondego estuary food web: seasonal variation in producers and consumers..  Marine Environmental Research Marine Environmental Research.  67:109-116. 2009
• Upside-down swimming behaviour of free-ranging narwhals..  BMC Ecology.  7:14. 2007