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The Venetian Lagoon
Venice is among the world's most urban cities: a crowded aggregate of houses, palazzi, churches, squares, and other manmade structures, with few public green spaces to relieve a landscape dominated by stone, brick, and stuccoed walls.
So much for the obvious. What most visitors don't realize is that Venice is surrounded by one of the most ecologically rich bodies of water in the Mediterranean: the Laguna Veneta, or Venetian Lagoon.
The Laguna is a crescent-shaped body of water between the Italian mainland and the Adriatic sea. It lies within the arms of the Litorale Pellestrina, Litorale di Lido, and Litorale del Cavallino. These three strips of land are broken at only three entrances or porti along a length of some 30 miles (45 km), creating a marshy environment that is fed by rivers yet flushed by salt water from the Adriatic.
In Venice: The Art of Living, Frédéric Vitoux has this to say about the Lagoon:
As Vitoux points out later in the same chapter, the Venetian Lagoon has an average depth of just two feet. Yet within that shallow depth are any number of creatures: anemones, crabs, mussels, limpets, barnacles, cuttlefish, squill, oysters, shrimp, and fish that range from the tiny anchovy to eels, mullet, and sea bass up to 30 inches (75 cm) in length. And because so much food is readily available, birds such as ducks, swans, cormorants, and spoonbills proliferate on the many abandoned or uninhabitable islands in the lagoon.
Farming and fishing
Fish farming is a relatively new phenomenon in the North America, but the Lagoon's inhabitants have practiced vallicultura for centuries. Fish farmers create a maze of banked areas, with fish locks connecting the valle or ponds to the open lagoon. The fish locks, or dams, are opened at certain times of the year to admit fish, then closed until the fish are ready to return to the lagoon--at which time some are caught and others are released to grow or reproduce in their natural environment.
Other sea creatures are caught in the wild by a variety of techniques. Tour the Lagoon by boat, and you'll see large square nets that are suspended from latticework towers. Fishermen lower the nets by hand when a school of fish approaches, then raise the nets to capture the fish. Mussel ropes are also visible in many places--just look for what appear to be soccer standards with ropes hanging from the wooden crosspieces.
Navigation amid the mud
With the lagoon being so shallow, vaporetti and other larger boats must travel in dredged navigation channels to avoid run-ins with mudflats and sandbanks. These channels are marked with clusters of wooden pilings such as the bricola and dama. All are numbered and marked on nautical charts, and some have lights to make the channel boundaries visible at night. Jan Morris, travel writer and author of The World of Venice, warns:
Health hazards, old and new
In earlier times, the Lagoon's marshy environment gave rise to malaria and other diseases. Today, the health hazards have done a turnabout: the threat is now from man to the Lagoon.
Industrial plants at at Marghera, on the mainland near the causeway to Venice, has dumped chemical pollutants into the Lagoon over the last several decades. Increased traffic by tankers and other large ships has added to the problem. Agriculture deserves much of the blame for the algae that clogs the lagoon during the summer months, since rain often washes chemical fertilizers into the Lagoon. This is an especially severe problem in the marshy areas known as the laguna morta ("dead lagoon"), which aren't rinsed by the Adriatic tides.
The Municipality of Venice is making efforts to reduce pollution, including the use of buffer strips to capture agricultural nutrients with trees and shrubbery along the edges of the Lagoon. Scientists are also trying to determine how a treatment plant might reduce nitrate and phosphate deposits in the lagoon. In the meantime, the Lagoon continues to suffer from increases in algae, mosquitoes, and other consequences of pollution by raw sewage, industrial discharges, laundry detergents, and fertilizer runoff.
Touring the Lagoon
If you fly into Venice, Italy's Marco Polo Airport and the weather is decent, you'll get a fascinating aerial view of the Laguna Veneta--including glimpses of brick houses and hunting lodges that sit on tiny patches of dry land at high tide.
For a more intimate view of the Lagoon, take the Alilaguna airport boat from airport to the Piazza San Marco instead of a land bus or taxi, or go to Burano and Torcello on public transportation.
Also see our article about Chioggia, a fishing port at the southern end of the Lagoon, which has an historic center with canals plus the modern beach and boating resort of Sottomarina.
Copyright © 1996-2022 Durant & Cheryl Imboden.