本研究以人為破壞較少、生態復育潛力較豐富之臺灣山區野溪為研究對象，針對7條山區野溪中133個採樣點現地調查。研究結果顯示枯水期之野溪水流量雖然較少，但大部地點都能發現指標魚種，主要的指標魚種為：臺灣石賓、短吻鐮柄魚、臺灣鏟頜魚、大吻鰕虎與褐吻蝦虎等5種。依據魚類時空分布統計分析，顯示4個魚體變項（最小體長、最大體長、體長差異和平均體長）會隨著不同野溪（空間尺度）呈現顯著變異，且魚隻總數也會隨著不同月份（時間尺度）而顯著變異。本研究之結果，可提供台灣山區野溪枯水期之魚類生態保育與復育計畫之參考。
This research targeted on torrents in Taiwan mountainous regions which have less contamination and more ecological potential restoration. Afterinvestigating 133 sites in the seven torrents, the target fish species could be found at almost all sites in dry seasons. Five target fish species wereAcrossocheilus paradoxus, Microphysogobio brevirostris,Varicorhinus barbatulus,Rhinogobius brunneus, andRhinogobius gigas. Analyzing fish distributions by statistics, the research concluded that four fish body variables (min. body length, max. body length, difference length, and average length) would change notably by different torrents (spatial scale), and then fish numbers had notable differences in variant months (temporal scale). This study is useful for fish conservation and restoration in dry-season torrents in Taiwan mountainous regions.
