The Venice lagoon is the largest example of a coastal lagoon in the High Tues Adriatic, with a length of about 50 km and a width between 10 and 11 km of the basin shape is reminiscent of clove orange up with the convexity facing northwest.
The lagoon is between the mouths of historical Piave and Adige in the north-east to south-west, more precisely between the current mouth of the Sile and the Brenta-Bacchiglione.
Its surface is about 549 km (or about 50 000 hectares), 67 percent of which consists of lakes, 25 percent to 8 percent salt marshes and islands. The 15 per cent of the total is curbed by fishing ponds, around 24, with a total area of \u200b\u200b9 km. The depth of the ponds varies from a few centimeters inside the marshes a few tens of meters at the ports and shipping channels.
The breadth of the entire drainage basin, as stressed by the administrative boundaries of two provinces, that of Padua and Venice, is of 1840 sq. km. Thirteen municipalities whose territories are partially included in or form part of the lagoon of the gutter: Chioggia, Cavan, Cona, Codevigo, Corezzola, Mira, Campagna Lupia, Quarto d'Altino, Musile di Piave, Eraclea, Jesolo, Cavallino-Treporti, Venice. The water hydraulic
agricultural hinterland is extended to 202 000 hectares and draining into the lagoon through twenty points of entry of fresh water.
recovery of dynamic balance between the various activities on site and the lagoon's ecosystem requires a legislative project aimed to reaffirm regional biodiversity and environmental protection, recovering the symbiosis human activity, and to promote environmental education and scientific research, cultural and economic development of the local resident populations.
lagoon environments are constantly changing areas should be monitored constantly to prevent decay and collapse of the ecosystem. The variability of environmental parameters is a crucial aspect of ecology and the lagoon is higher the stronger are the characteristics of the lagoon site.
The salinity of the sea change from the more inland areas that at the inlets, becoming more or less depending on the seawater evaporation phenomena prevail or providing fresh water.
This environmental variability is, however, follow a regular distribution of the basis of which overlap models more complex such as embroidery to the plot and the Horde. The backbone of the lagoon environment is basically the result of sea rhythmically penetrating into a basin wide and shallow.
The replacement of water has profound biological implications as it allows oxygenation, transport of nutrients and waste products, as well as the size of the lower forms of living beings - such as plankton - the different areas of the lagoon and between these and the sea. For each tidal cycle the higher areas remain submerged for less than the slums.
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