Ecologie des foraminifères planctoniques du golfe de Gascogne ...

tel-00480660, version 1 - 4 May 2010
data would be needed to confirm the size distribution of sediment assemblages of planktic
foraminifera along water depth transects from the open ocean onto the shelf.
8. Conclusion
The distribution of living planktic foraminifera along a bathymetric transect in the south-
eastern Bay of Biscay reveals the production of planktic foraminifera in the shallow waters of
a mid-latitude marginal environment. The distribution of empty tests reflects the seasonality
of planktic foraminifera production. In spring, the abundance of living planktic foraminifera
decreased from the hemipelagic ocean (2000 m water depth) towards the shelf (