One solution to the problem of where to find new blood might be swapping with other marine mammal facilities. But this would raise complex problems of interactions among creatures of different species and habits, so right now the prospects are not so great.
另一個可能的解決方式則是和其他水族機構相互交換，不過這牽涉到品種、習性等複雜的問題，目前的可行性並不高。