- 期刊
台灣間爬岩鰍種內棲息環境差異於極端洪水事件後溪流棲地復育之運用
Application of Intraspecific Habtiat Environment Variation among Hemimyzon Formosanus for Habitat Restoration after Extreme Floods
摘要
魚類棲地適合度曲線、物理棲地模擬系統（PHABSIM）等量化研究已大量運用於水利工程溪流棲地復育，本研究嘗試於水利疏濬工程加入種內棲息環境差異之考量，探討河川內迴游魚種於極端洪水事件後所需復育條件。本研究於楠梓仙溪中上游，以電格法進行研究魚種台灣間爬岩鰍採樣，並量測電格物理環境流速、水深、底質與水質資訊，經統計分析，證實台灣間爬岩鰍成、幼魚在各種空間尺度下所棲息之量化環境均有差異。2009年楠梓仙溪經歷了極端的洪水事件，本研究建議河道因大量淤積需辦理疏濬時，可考量台灣間爬岩鰍族群種內棲息環境差異進行河道整治，可加速台灣間爬岩鰍族群之復育，並作為水利工程生態檢核之參考。
並列摘要
Quantitative studies such as the Habitat Suitability Curve and Physical Habitat Simulation System (PHABSIM) have been widely used in stream habitat restoration of hydraulic engineering. We attempt to provide an integrated approach to engineering and ecology applied to the context of future projects involving river dredging after extreme floods. In this study, in the middle and upper reaches of Nanzihsian River, the research fish species, Hemimyzon formosanus, were sampled by the electric grid method, and the physical environment of the electric grid was measured, including the data of flow velocity, water depth, substrate, and water quality. Statistical analyses confirmed the differences in the intraspecific hydraulic habitat environment of Hemimyzon formosanus. The Nanzihsian River experienced an extreme flood event in 2009. This study suggests that after extreme events when dredging is required due to massive siltation of the river, the environment can be rehabilitated according to the preferred habitat of the Hemimyzon formosanus population, which can speed up the restoration of the Hemimyzon formosanus population.