The Alaska blackfish (Dallia pectoralis) is a freshwater fish endemic to Chukotka and Alaska north of the Alaska Range (Beringia); the species was introduced outside of its native range to the Cook Inlet Basin of Alaska in the 1950s, where it has since become widespread. (Eidam, D.M., von Hippel, F.A., Carlson, M.L. et al. Trophic ecology of introduced populations of Alaska blackfish (Dallia pectoralis) in the Cook Inlet Basin, Alaska. Environ Biol Fish 99, 557–569 (2016). https://doi.org/10.1007/s10641-016-0497-6)
