Many populations take two years to mature and experience only one breeding season before dying, and some can take up to three years to reach maturity.
However, some freshwater populations and populations at extreme latitudes can reach maturity in only one year.
Many populations take two years to mature and experience only one breeding season before dying, and some can take up to three years to reach maturity. However, some freshwater populations and populations at extreme latitudes can reach maturity in only one year.
Three-spined stickleback