農業部-水產試驗所全球資訊網農業部-水產試驗所全球資訊網

日本鰻是東亞水產養殖的重要魚種，由於商業化人工種苗生產尚未建立，因此養殖所需的大量鰻苗皆需依賴天然捕撈，然近年來鰻魚資源日益下降，導致鰻苗供不應求，造成養殖產業的嚴重瓶頸。鰻魚是降海產卵型魚種，大部份幼苗溯河成長，達到成熟期才降海產卵。。鰻魚人工放流係資源培育現階段較為可行的方法。因此，臺灣水產試驗所自1976年迄今已執行57次放流工作；共放流43,000公斤12萬尾鰻魚。本年度於宜蘭縣宜蘭河、新竹縣鳳山溪及高雄屏東交界的高屏溪放流鰻魚共1115公斤（11430尾），並在新竹縣舉辦鰻魚放流保育宣導活動一場。放流後並進行效益追蹤評估，本年度於宜蘭河及鳳山溪回收植晶片鰻魚20尾，並配何其他研究單位裝設無線電發報器，探討鰻魚在河川內的動態。

Japanese eel is an economically important aquaculture species in East Asia. Because the commercial scale of artificial propagation of the glass eel has not been established yet, the needed elvers are all caught from the wild. The shortage in the supply of the elver has become more and more serious in recent years. This results in a serious bottleneck for the aquaculture development. Japanese eel is a catadromous fish, most glass eels migrate upstream and grow in freshwater until maturation. The release of eel into natural environment is considered as the feasible method to enhance elver recruitment. Therefore, the restocking activity has been launched by Taiwan Fisheries Research Institute since 1976 and a total of 120,000 eels (43,000 kg) have been released in 57 events. In addition, the evaluation on the efficiency of restocking activity was also carried out