What is an important characteristic of estuary?

An important characteristic of an estuary is its dynamic and highly productive ecosystem. Estuaries are formed where rivers meet the ocean, and as a result, they experience a mix of saltwater from the ocean and freshwater from the river. This unique blend of water creates a rich environment that supports a diverse range of plant and animal life. Estuaries serve as breeding grounds, nurseries, and feeding areas for many species of fish, shellfish, birds, and other wildlife. They also play a vital role in filtering pollutants and improving water quality, making them ecologically significant ecosystems.