Brook sticklebacks are minnow-sized fish. They usually do not grow much bigger than 60 mm (2.4 in). The biggest ones reach about 80 mm (a little over 3 in). The brook stickleback is like many of the smaller species in Minnesota in that it lives for only 1 to 2 years, occasionally for 3 years.

What kind of fish is a stickleback?

Stickleback, any of about eight species of fishes in five genera of the family Gasterosteidae (order Gasterosteiformes) found in fresh, brackish, and marine waters in temperate regions of the Northern Hemisphere as far north as the Arctic Ocean.

Are sticklebacks good bait?

Sticklebacks are a common bait fish throughout Cape Breton, in both fresh and brackish water, and trout love to eat them so it is not surprising that trout in the Bras d'Or Lake are taking advantage of this plentiful food source.