- Arapaima are top predators in the Amazon River and its tributaries.
- Arapaima need to breathe air. They have a modified swim bladder that functions like a lung.
- They are also called “pirarucu”. Pirarucu derives from the Nheengatu language (pira and urucu) and means “red fish”.
- The taxonomy of the genus Arapaima is still under debate.
- Many aspects of the biology of arapaima still challenge scientists.
- Current research, at IGB for example on genetic information and reproductive biology, helps us to understand this species better.
- Both males and females build their nests together often during rising water levels.
- Arapaima have thick scales with a special structure to protect them from predators such as piranhas.
- Arapaima experienced a sharp decline due to overfishing, but a clear recovery in many areas can be observed due to conservation efforts.
- Due to its features, it is a potential candidate for fish farming.
It can reach 3 m in length. It can live for over 15 years. Both males and females provide parental care. It can grow to 10+ kg in the first year.
Arapaima are top predators in the Amazon River and its tributaries. Arapaima need to breath air. They have a modified swim bladder that functions like a lung. They are also called “pirarucu”. Pirarucu derives from the Nheengatu language (pira and urucu) and means “red fish”.
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