Distribution of macrobenthic assemblages along a marine gradient in Mediterranean eutrophic coastal lagoons

摘要: Coastal lagoons can be characterised by strong environmental changes along the outer marine-inner brackish gradient, which are reflected in patterns of distribution organisms and composition assemblages. Close to sea assemblages dominated marine animals, while innermost confined areas, there would estuarine taxa typical organically-enriched areas. During last decades, human impact has been severe these habitats often profoundly altered animals plants gradient. In this study we have analysed macrofauna gradient five Italian lagoons, affected disturbance on Adriatic, Tyrrhenian Sardinian coasts. We aimed measure according distance from sea, consistent among time, after occurrence eutrophication, repeated distrophic crisis other interventions. considered existing data campaigns done during 1994, 1995 1999. arranged different datasets available data, order spatial genera with through time. Analyses showed differences related Nevertheless, species characterizing were all testified an impoverishment diversity functioning systems. [KEYWORDS: ; eutrophication coast Mediterranean distribution]