SIZE :
Up to 150 cm for 22 kg.
LIFE EXPECTANCY :
Up to 21 years.
LIFE CYCLE :
Sexual maturity is reached by 7 to 10 years of age.
Spawning takes place between July and January. The spotted wolffish has an elaborate reproductive behaviour. After fertilisation, the female lays her eggs on the bottom. The male watches over them, by grouping them into a mass that it protects and oxygenates by ventilating them. A female can lay between 8,000 and 50,000 eggs a year.
At the end of the incubation period, small fish, miniature versions of the adults, emerge from the eggs. They will remain in proximity of their birthplace.