Saltwater fish

Saltwater fish are aquatic animals that live in oceanic environments where the water contains a high concentration of salt. Unlike freshwater fish, which inhabit lakes and rivers, saltwater fish are adapted to their saline surroundings, often featuring specialized kidneys and gills that help regulate their internal salt balance. They come in a wide variety of species, from the vibrant clownfish to the sleek tuna, and play critical roles in marine ecosystems. These fish are also important for human activities, including fishing, aquaculture, and recreational diving, as well as contributing to the global food supply.