kystlagune

A kystlagune, or coastal lagoon, is a shallow body of water separated from a larger body of water, typically the sea, by a barrier such as a sandbar, barrier island, or coral reef. These environments are characterized by brackish water, meaning they contain a mix of freshwater and saltwater. The salinity levels can fluctuate significantly depending on factors like rainfall, evaporation, and the degree of connection to the open sea.

Kystlagunes are dynamic ecosystems. They often receive freshwater input from rivers or streams draining into them, while saltwater enters through narrow inlets or tidal channels. This constant exchange influences the unique flora and fauna found within them. Many species of fish, invertebrates, and plants are adapted to these fluctuating conditions, making kystlagunes important nurseries and habitats.

The formation of kystlagunes is often a result of geological processes, including sea-level changes and sediment deposition. Over time, the accumulation of sand or other materials can build up barriers, gradually enclosing portions of the coast. These features play a role in coastal protection by absorbing wave energy and can also be significant for biodiversity and human activities like fishing and recreation.