But around 1990, just as calls to establish a nature preserve there were growing louder, the landowner began raising tilapia and grass carp in the lake, which damaged its ecology and greatly distressed the ecological community.
沒想到 1990 年前後，正當保育團體大聲疾呼設立保護區之際，地主竟為了開發，刻意放養吳郭魚、草魚破壞棲地，令保育界痛心不已。