Fourteen of these survivors were selected to be the founders of a captive-bred population, which was established in the Point Defiance Zoo and Aquarium between 1974 and 1980.
Četrnaest od tih preživjelih odabrano je kao temelj zajednice uzgojene u zatočeništvu u zoološkom vrtu Point Defiance od 1974. do 1980. godine.