You can't go home again Therefore, the brook masu salmon needs a river which has gentle as well as rapid currents, and deposits of small stones as well as large boulders.
殘溪剩水因此溪流除了湍流、急瀨，也需要有緩流、深潭，除了大石子矗立，也要有小鵝卵石堆疊。