The key question is this: After investing so much money and bringing together so many talented people, why has it proved impossible to preserve the short five kilometers of the Chichiawan Stream where the species resides?
問題是，投入許多金錢，結合許多人力的復育工作，為何保不住魚兒的棲息場所﹘﹘短短五公里的七家灣溪？