SIZE :
Up to 64 cm.
LIFE EXPECTANCY :
Up to 12 years.
LIFE CYCLE :
Sexual maturity from age 3, or 35 cm in length.
Spawning takes place between May and July. Each female lays between 350,000 and 4 million eggs. These rise to the surface and hatch around 5 days later.
The larvae live near the surface for 2 months. They then migrate to the bottom when they measure 14 mm.