description Cau Hai Lagoon Overview
Cau Hai Lagoon is a significant brackish water body forming the southern portion of the Tam Giang–Cau Hai lagoon system in Thua Thien Hue Province, central Vietnam. It is the largest lagoon system in Southeast Asia and supports substantial aquaculture operations, including shrimp and fish farming. The lagoon and its surrounding wetlands also provide habitat for a diversity of fish, bird, and plant species.
help Cau Hai Lagoon FAQ
Where is Cau Hai Lagoon located?
Cau Hai Lagoon is in Thua Thien Hue Province in central Vietnam. It forms the southern portion of the larger Tam Giang-Cau Hai lagoon system.
How is Cau Hai Lagoon connected to the Tam Giang-Cau Hai system?
Cau Hai is the southern section of the lagoon system, while Tam Giang occupies the northern part. Together they form the largest lagoon system in Southeast Asia.
Why is Cau Hai Lagoon important to local communities?
The lagoon supports aquaculture, including shrimp farming, as well as fishing and other coastal livelihoods. Its brackish water makes it suitable for species adapted to mixed fresh and salt conditions.
Is Cau Hai Lagoon freshwater or seawater?
Cau Hai is brackish, meaning it contains a mixture of river water and seawater. Salinity changes with tides, rainfall, river flow, and exchanges with the coast.
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