Interannual variability in zooplankton abundance was assessed based on zooplankton time series at coastal Point B and offshore Dyfamed sites (NW Mediterranean) in 2004-2010 and 2001-2009 respectively. Zooplankton abundance was evaluated in relation to hydrographic conditions and causes of interannual and seasonal variability were inferred. Offshore site Dyfamed was characterized by reduced total zooplankton abundance and more equal distribution of species composition. Winter convection was the main hydrological phenomena determining zooplankton succession in Dyfamed site. High variability in hydrographic parameters in coastal site was reflected in significant interannual variability of zooplankton. Marked changes in hydrology in 2006 were recorded both in PointB and Dyfamed. High phytoplankton abundance in Dyfamed was linked to the intense 2006 convection event as a result of replenishment of nutrients in surface waters. Total zooplankton abundance was enhanced in Dyfamed and PointB in following years. Zooplankton abundance at Dyfamed revealed patterns that are tightly correlated to the distribution of phytoplankton functional groups. Similar cascade of trophic links between different taxonomic groups was identified in PointB and Dyfamed.
ISCED Categories
The highlighted icons, represent the fields of education (in compliance with ISCED Classification) engaged during this course/programme.
