- SEA LIFE Oberhausen, Swarm Ring
About the mackerels
- The mackerel belongs to the Scombridae and occurs in big swarms.
- Mackerel can grow to 60 centimeters long, weigh up to 3.4 kg and be 17 years old.
- Unlike most other fish, mackerels have no air bladder. This has the advantage that they can quickly change the water depth without having to equalize the pressure. On the other hand the mackerel has to be constantly in motion to avoid sinking.