SIZE : Up to 44 cm and up to 750 g.
LIFE EXPECTANCY : Up to 25 years.
LIFE CYCLE : Sexual maturity around 4 years.
The reproduction period can be in spring or autumn, depending on the herring population. This fish migrates to the same site for reproduction, along the coast in shallow waters.
The female lays between 10,000 and 60,000 eggs. Once fertilized, the eggs settle on the substrate in the form of sticky ribbons. They hatch in less than 3 weeks, depending on the temperature.