SIZE :
From 30 cm to 50 cm, up to 112 cm.
LIFE EXPECTANCY :
From 15 to 20 years.
LIFE CYCLE :
Sexual maturity around 3 to 5 years.
Spawning takes place in the spring. Females can lay up to 200,000 eggs close to the bottom. The eggs are round and transparent. Once fertilized, after about two weeks, they rise to the surface. The fry live on the surface waters until mid-summer, where they feed on plankton.
After the spawn, juvenile fish sink to the bottom, where they will live until they reach breeding age. They can grow from 5 cm to 10 cm per year.