Tyonek has been repeatedly mentioned as a contributing factor for the decline in the Beluga on the cook inlet, in the pre 90s it is a fact that Tyonek have never took no more then two Belugas per year. Since then Tyonek have not taken any, even if it is allowed to take one per year. It have never been proven what is happening to them. Tyonek have partnered with NMFS to see what was happening, no one really knows. With millions of gallons of Anchorage sewerage and the decline in salmon and hooligans as high suspects, it's is still not known.