rivière - Discover fishes living in these biotopes

It has special organs that allow it to breathe out of the water. In the dry season it silts up, gets surrounded by a cocoon made of mucus and reduces its biological activity to a minimum. It can remain in the state for more than a year. It belongs to the same class as the terrestrial vertebrates.

Like many catfish species, it hunts at night. The female is larger than the male and lays huge amounts of eggs (8 million eggs per kilo). Because of its size and its diet, you should not keep it in a private aquarium.

The stripes of it body allow it to hide. Parents lay their eggs in the vegetation, and provide for their offspring long parental care (custody, ventilation ...). Very popular among aquarists: there are many color varieties obtained through breeding.

It is carnivorous, its sharp teeth have earned it the local name. (Pira = fish, Nha = tooth). Its dangerousness was often exaggerated: it serves as prey of many animals (alligators, giant otter ...). Piranhas are especially dangerous for humans in the dry season, when they lack food.

The roach is a very common fish in our ponds. Breeding occurs from April to June, the female lays between 150 000 and 200 000 eggs on vegetation, gravel ... Its numbers are increasing throughout Europe. It benefits from warming waters in urban areas and channeling rivers.