What is the biom is characterized by the mixing of salt water and freshwater has animals such as crabs starfish and beluga wheals?

The biome characterized by the mixing of salt water and freshwater is called an estuary. Estuaries serve as crucial ecosystems that support diverse wildlife, including crabs, starfish, and beluga whales. They provide essential habitats for many species, serve as nurseries for marine life, and play a vital role in nutrient cycling. The unique conditions in estuaries promote high productivity and biodiversity.