Fish migration is the mass movement of fish from one area to another. Various types of fish migrate regularly and sometimes daily. These movements take place over a short distance and sometimes a long distance. Here are some facts about fish migration. They migrate in order to find a mate, reproduce, or survive. And, fish migration is an important factor in the environment. So, how can we understand fish migration better? Read on for more information!
Many species of fish migrate yearly. Some are true migrants, while others are merely seasonal wanderers. Juveniles leave their spawning grounds and join the adult stock at feeding grounds. Adult fish migrate to spawning grounds and then back again to feed. Fish migration is related to oceanographic factors such as currents. During the migration period, fish swim long distances and can even migrate thousands of kilometers. These movements are also dependent on environmental conditions, such as temperature and salinity.
In addition to food availability, fish migration occurs for various reasons, such as spawning habitats, climatic conditions, and the vulnerability of the young to predation. Fish migration is also classified as diadromy, which is movement between salt and fresh water. Catadromous fish, for example, live in fresh water and spawn in salt water. Anadromous fish, on the other hand, live in fresh water and reproduce in the sea. Many species of fish migrate over long distances within large rivers and ponds.