What is an ocean fish?

Ocean fish are species of fish that live primarily in saltwater environments such as seas and oceans. They include a wide variety of species, ranging from small sardines and anchovies to large tuna, swordfish, and sharks. Ocean fish play a crucial role in marine ecosystems and are also an important source of food and livelihood for people around the world. Their habitats, behaviors, and adaptations can vary widely depending on the species and the specific ocean environment in which they live.