Even the rivers of eastern Taiwan are at risk, and suckermouth catfish and mosquitofish (Gambusia affinis) have made themselves at home in the crystal waters of the Shuanghsi and Mutan Creeks of northern Taiwan.
連東部淨土的河川也岌岌可危，而水質清澈的北部雙溪與牡丹溪，都有琵琶鼠、大肚魚歡喜喬遷。