lesson 3: The lagoon ecosystem and sustainable use

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Presentation transcript:

lesson 3: The lagoon ecosystem and sustainable use Venice images4, illustrating aspects of management and sustainable use of the Lagoon of Venice lesson 3: The lagoon ecosystem and sustainable use Lagoon in Venice © David Anderson

Biodiversity of the lagoon is related to habitat diversity as illustrated here. Erosion, deepening, and flattening of the lagoon bed (related to shipping) reduces habitat diversity. https://www.veneziainvela.com/it/articoli/laguna-il-sistema-acqua/

Rip rap to combat erosion. Rip rap © N. Chadwick, Geograph

Mudflat and salt marsh in the northern part of the lagoon Mudflat and salt marsh © David Anderson

Bank erosion Protected bank Bank erosion © David Anderson

Wood posts preventing erosion from the wash of boats Wood posts to prevent erosion © David Anderson

Cement protecting against salt marsh erosion Cement protecting against salt marsh erosion © David Anderson

A valle da pesca with gates for controlling movement of fish Gates to control the movement of fish in the lagoon © David Anderson

Netting fish at a valle da pesca in the northern Lagoon of Venice Net fishing © David Anderson

A larger scale example of valle da pesca Fishing valley © Dion Marsan, Wikimedia Commons

Locations of some valle da pesca north and south of Venice