What is the biggest fish in the Black Sea?

The biggest fish in the Black Sea is the sturgeon, which can reach up to 7 meters in length and weigh up to 800 kg. It is a species of anadromous fish that spends most of its life in the Black Sea, but migrates to the nearby rivers to spawn. They feed mainly on fish, crustaceans and molluscs.

The sturgeon is the largest fish found in the Black Sea and is an important part of the region's economy, as it has been harvested for centuries for its roe, which is used to make caviar. The sturgeon is also an important part of the ecosystem, providing food for other fish and birds. Unfortunately, the sturgeon population is in decline due to overfishing, pollution and habitat destruction. Conservation efforts are being made to protect the species and ensure its survival in the Black Sea.