Surrounding influence on the Ecological state of the lagoon of Marchica

The lagoon of marchica is defined as an ecosystem not very deep (8m) which is connected to the sea by a restricted opening. they are cut ponds of the sea by the interposition of an offshore bar and characterized by the absence of current and tide. it is a zone which offers sectors of particular habitats for fauna and the flora. its biological diversity is important; its food chains are rich and complex. these coastal mediums are the seat of anthropic entries responsible for the increase in the levels of contamination,because of the industrial,agricultural expansion and of the accelerated growth of the population. these modifications have as consequence a change of their ecological stability the not controlled contributions enrich the lagoon and its components in pesticides,hydrocarbons and heavy metals. the organic matter in excess in the lagoonal systems constitutes a source of pollution which generates dysfunctions in the trophic chain.