SIZE :
20 to 25 cm with a maximum of 35.6 cm.
LIFE EXPECTANCY :
Up to 7 years.
LIFE CYCLE :
In spring, rainbow smelt migrate to freshwater to spawn. During the nights between April and June, the female can lay up to 80,000 eggs. These stick to the bottom thanks to their adhesive envelope. Once born, the rainbow smelt move to salt water to grow. They will return to freshwater for the next spawning season.