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di Civiltà e Forme del Sapere Università di Pisa Centro di Studi Storici Mediterranei "Marco Tangheroni" c/o Dip di Civiltà e Forme del Sapere Università di Pisa Session Morphology and evolution of coastlines and seabeds Giuliano Gabbani Dip. Organic and inorganic pollution is commonly buffered by physical and chemical processes, such as currents, dispersion, dilution, or chemical reactions, as well as by biological ones, e.g. M.) Foundation Comune di Livorno Livorno Port Authority Presidency: Claudio Conese (Symposiarch) Filippo Nogarin Giuliano Gallanti Fabrizio Benincasa SCIENTIFIC COMMITTEE Matteo De Vincenzi CNR-IBIMET Firenze Coordinator of the Scientific Secretariat CNR-IBIMET Firenze Major of Livorno Municipality and President of L. Gestione Sistemi Agrari, Alimentari e Forestali - Università di Firenze Carla Cesaraccio CNR IBIMET Sassari Lorenzo Chelazzi Museo di Storia Naturale della Maremma - Grosseto Roberto Tognetti Dipartimento di Bioscienze e Territorio - Università del Molise Session Coastal landscapes: past and present aspects of human influence Biagio Guccione Dipartimento di Architettura Università di Firenze Marco Milanese Carlo Natali Marinella Pasquinucci Olimpia Vaccari Dipartimento di Storia, Scienze dell'uomo e della Formazione Università di Sassari Dipartimento di Architettura Università di Firenze Dip. A port area is subjected to strong anthropogenic impacts and is characterized by many variables that interact to produce more or less stable equilibrium. Scapini 5 Water quality in the Port of Viareggio: a geochemical and biological characterization F. The light attenuation coefficient was well correlated with the concentrations of the optical components (total suspended matter-tsm, CDOM, Chla), with a prevailing role of CDOM and Chla, confirming the eutrophic conditions and the key role of phytoplankton, which was present in relatively high abundances with a typical composition of transitional waters. The highly eutrophic conditions of the waters were summarized using TRIX index (Chla, oxygen saturation, N and P), which assigned a poor ecological status to all the port sampled stations and moderate to the marine site. It may be characterized by concentration of Chlorophyll-a (Chla), cell abundance, taxonomic composition and species diversity and responds quickly to environmental changes, acting as one of the Biological Quality Elements that define the ecological status of the aquatic ecosystems (Water Framework Directive, WFD 2000/60 and Marine Strategy Directive, MSFD 2008/56, ).
Furthermore, Chla, together with total suspended matter (TSM) and chromophoric dissolved organic matter (CDOM), is the main Light Absorbing Substances (LAS), and this analysis was processed to attempt a classification of the port waters based on their bio-optical properties. Foundation Commissioner of Livorno Port Authority CNR-IBIMET Sassari Session Flora and Fauna of the littoral system: dynamics and protection Davide Travaglini Dip. 5 Introduction Aquatic systems, more than terrestrial ones, are mutable in space and time. Impact of shipyards, low hydrodynamics and nutrient inflow from the Burlamacca Channel appeared as the main elements affecting the port, posing serious risks to the natural balances. 3) Phytoplankton, unicellular microalgae constituting the main primary producers suspended in the water column. Conese XVII Aspetti generali della gestione delle aree costiere: situazione attuale e prospettive Session: Flora and Fauna of the littoral system: dynamics and protection 1 Chairman: D. industrial or domestic wastewater or discharge of nutrients and fertilizers used in agriculture .