Contents:

I - Executive summary

II - Workshop communications

- Dissolved Organic Matter and planktonic engineering.
Tim Wyatt and Maurizio Ribera d’Alcalà

- Food web driven dynamics of Dissolved Organic Matter in the Mediterranean Sea .
Fereidoun Rassoulzadegan and Tron Frede Thingstad

- A geochemical approach to the origin and fate of DOM in the Mediterranean Sea .
Xosé Antón Álvarez-Salgado and Mar Nieto–Cid

- Dying plankton as a source of Dissolved Organic Matter.
Nicholas S. Fisher

- Degradation of complex polysaccharides in marine pelagic communities.
Uta Passow and Carol Arnosti

- Production and fate of Dissolved Organic Matter in the Mediterranean : formation and function of giant gels in the northern Adriatic .
Vera Žuti ć and Vesna Svetličić

- Production and fate of autochthonous DOM: an experimental approach.
Morten Søndergaard and Theis Kragh

- Dissolved primary production and response of prokaryotic heterotrophs.
Xosé Anxelu G. Morán

- Prokaryotic ectoenzyme activity in surface waters of the Mediterranean .
Jesús M. Arrieta and G.J. Herndl

- Characterisation and cycling of Dissolved Organic Matter in the north-western Mediterranean Sea .
Vera Jones, Alexandra Gogou, Christophe Migon, K.E.H Penkman, M.J. Collins, Daniel J. Repeta

- Composition and formation of macroaggregates in the northern Adriatic Sea .
Nives Kovac, Jadran Faganeli, Oliver Bajt, Boris Orel and Boris Šket

- Bacterial heterotrophic activity in the sea surface microlayer of the coastal Mediterranean Sea .
Ingrid Obernosterer, Gerhard Herndl and Philippe Lebaron

- Ultra-violet radiation may affect bacterial cycling of Dissolved Organic Matter in the Mediterranean Sea : a case study, a review.
Richard Sempéré, Marc Tedetti, Bruno Charrière and Maher Abboudi

- Struggling with the ill-defined notions of stability, resistance and lability.
Peter J. le B. Williams

III - Bibliographic references

IV - List of participants