engleski

Production and Fate of Dissolved Organic Matter in Mediterranean: Formation and Functon of Giant Gels in Northern Adriatic

The DOM concept has served its purpose in global carbon cycles on oceanic and geological scales [1] and it has been supported by improvements in opperational DOC measurement techniques [2]. However, the DOM concept is questioned, when it comes to a particular process of a new photosynthetic production and DOM fate in a given marine ecosystem. Therefore it is of importance to reconsider and redefine the traditional DOM concept for costal seas. We have selected the case of a most intensive primary production and DOM transformation in a Mediterranean basen, nothern part of the Adriatic Sea, as a possible excersise in validating the DOM concept in view of new instrumental developments [3 and references therein, 4, 5] understandings of microbiological processes [6] and interactions of biopolymers at micro and nanoscales [5, 7]. Literatura: [1] Hedges J I 1992 Global biogeochemical cycles: progress and problems. Mar Chem 39: 67-93. [2] Hedges J I, Lee C 1993 (eds) Measurement of dissolved organic carbon and nitrogen in natural waters. Mar Chem 41: 1-290. [3] Žutić V, Svetlicic V 2000 Interfacial processes. In: Wangersky P (Ed) Marine Chemistry Vol. 5: The Handbook of Environmental Chemistry, Part D. Springer-Verlag: Berlin-Heidelberg, p 150-165 and references cited therein. [4] Svetlicic V, Žutić V, Durand-Vidal S 2005, Marine ecology at nanoscale: Supramolecular organization of marine gel. Seeing at Nanoscale III Conference, Sante Barbara, 31. [5] Svetlicic V, Žutić V, Durand-Vidal S 2005, AFM as a tool in marine biophysics. Proceedings of 7th Multinational Congress on Microscopy, Portoroz, Slovenia, 213-214. [6] Azam F, Worden A Z 2004, Microbes, molecules and marine ecosystems, Science 303: 1622-1624. [7] Leppard G G 1995 The characterization of algal and microbial mucilages and their aggregates in aquatic ecosystems. Sci Total Environ 165: 103-131.

DOM concept; DOM transformation; Northern Adriatic Sea; biopolymer interactions at nanoscale

nije evidentirano