Sterlet Sterlet The sterlet ("Acipenser ruthenus") is a relatively small species of sturgeon from Eurasia native to large rivers that flow into the Black Sea, Azov Sea, and Caspian Sea, as well as rivers in Siberia as far east as Yenisei. Populations migrating between fresh and salt water (anadromous) have been extirpated. Due to overfishing (for its flesh, caviar, and isinglass), pollution, and dams, the sterlet has declined throughout its native range and is considered vulnerable by the IUCN. Restocking projects are ongoing, and it has been introduced to some regions outside its native range, but the latter have generally not
Great Lakes Aquarium was designed after a cove in Pukaskwa National Park in Ontario. Directly to the left is an exhibit containing a crow named Freeway. Amazing Amazon opened in the summer of 2008. It features freshwater creatures from the largest river in the world. This includes Pacu, Arowana, Piranha, Catfish, Electric Eels, Discus. Opened in 2016, Unsalted Seas explores large lakes of the world and the animals that call them home. The exhibit features the largest sturgeon touchtank in North America with a primary focus on sturgeon from Russian and North Asian waters. Several species of those sturgeon including Beluga, Sevruga, Sterlet