Lagoon

Lagoon is a shallow body of water separated from a larger body of water (such as a sea or ocean) by a barrier such as a sandbar, coral reef, or barrier island. Lagoons are commonly found in coastal areas where they provide a calm and protected environment for a diverse range of marine life.

Formation

Lagoons are formed through various geological processes. They can be formed by the build-up of sediment along coastlines, which creates a barrier between the sea and the land. This barrier can be further built up by the action of waves and currents, eventually forming a lagoon. Lagoons can also be formed by the sinking of land, creating a depression that is filled with sea water.

Types of Lagoons

There are several types of lagoons, including atoll lagoons, coastal lagoons, and estuarine lagoons. Atoll lagoons are formed by coral reefs, while coastal lagoons are formed by the action of the sea. Estuarine lagoons are formed at the mouths of rivers where the fresh water mixes with the sea water.

Ecology

Lagoons are rich in biodiversity and provide a habitat for a wide variety of organisms. They are home to many species of fish, birds, mammals, and invertebrates. Lagoons also serve as important breeding grounds for many species of fish and birds.

Threats and Conservation

Lagoons are threatened by a variety of factors, including climate change, pollution, and human development. Conservation efforts are aimed at protecting these unique ecosystems and the species that inhabit them.

See Also

• Coral reef
• Estuary
• Marine biology
• Coastal geography

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