SIZE:
12 cm for the male and 16.5 cm for the female.
LIFE EXPECTANCY:
Up to 8 years.
LIFE CYCLE:
Sexual maturity is reached during the second year of life.
Northern shrimp change sex as they age. At birth, all shrimp are male. Individuals change sex around the age of 4 years, at which time they develop reproductive organs to carry eggs.
Reproduction takes place from July to October. Female shrimp lay an average of 2000 eggs, which they keep under their abdomen for the incubation period. They store the male’s sperm in a special structure. The following year, from March to May, they lay their eggs and release the sperm that had been stored until then. The eggs hatch 6 to 10 months later, in spring or summer.