Agencies
Services
Wild About Illinois Fishes!
Family Gasterosteidae - Stickleback Family
Family: Gasterosteidae - Sticklebacks are small, scaleless fishes with several isolated dorsal spines along the back followed by a dorsal fin. These fishes are well-known for their mating behavior and nest-building abilities.
brook stickleback (Culaea inconstans)
threespine stickleback (Gasterosteus aculeatus) [nonnative]
ninespine stickleback (Pungitius pungitius)