大漢溪上游河川魚類棲地適合度曲線之研究

None

李永安(Yung-An Li)

指導教授 ： 吳瑞賢

國立中央大學/工學院/土木工程學系碩士在職專班/碩士(2007年)

摘要

本研究為運用前人對台灣北部大漢溪上游93~94年間生態環境調查成果，嘗試以其中四條支流調查所得鯉科(Cyprinid fishes)魚類及計畫保育之台灣產特有淡水魚類(Taiwan endemic freshwater fishes)為目標魚類(target species)，將各期調查數量加以統計並進行無因次處理(None-factorial)，以建立其水深、流速、水質及底質等四項棲地適合度曲線(HSC)，最後再予整合並與國內學者針對不同區域及目標魚類所制定之適合度曲線加以比較分析。本研究結果顯示整合後大漢溪上游鯉科魚類之最適水深介於0.49~0.90m，最適流速為0.45~0.75m/s，最適合水質為RPI積分值介於1.5內之未受污染等級，最適底質粒徑則為12.13~21.49cm；而台灣產特有淡水魚類之最適水深為0.41~0.86m，最適流速為0.28~0.70m/s，最適合水質為RPI積分值介於1.5內之未受污染等級，最適底質粒徑則為14.95~24.91cm。

關鍵字

適合度曲線 ； 鯉科魚類 ； 無因次處理 ； 台灣產特有淡水魚類

並列摘要

This study is based on the report of the ecological environment investigation on the upstream of Da-Han River from 2004 to 2005. Four sub-branches of Da-Han River have been chosen to investigate. The target fish species are Cyprinid fishes and Taiwan endemic freshwater fishes. The study counts the quantity of each period of time and doing none-factorial methods to fit the four different habitat suitability curve regimes (water depth, flow velocity, water quality and bed material) of rivers. The result of this study is compared and analyzed with the other Suitability Curves (aim to different areas and different target fishes), which are established by scholars.

The result of this study can be summarized as follows:
The Cyprinid fishes in the upstream of Da-Han River, are most suitable for the range of the water depth between 0.49 to 0.9m, the most suitable range of flow velocity is 0.45 to 0.75m/s, the most suitable water quality is below 1.5 of RPI, the most suitable bottom sediments are 12.13 to 21.49cm. For Taiwan endemic freshwater fishes, the most suitable depth is 0.41~0.86m, the most suitable flow velocity is 0.28 to 0.70m/s, the most suitable water quality is below 1.5 of RPI, and the most suitable bottom sediments are 14.95 to 24.91cm.

並列關鍵字

Suitability Curves ； None-factorial ； Taiwan endemic freshwater fishes ； Cyprinid fishes

參考文獻

5.余燕妮，「台灣河川特有魚種之分區適合度曲線研訂」，國立中央大學土木工程研究所碩士論文，(2006)。

10.李德旺、于錫亮，「埔里中華爬岩鰍棲地環境之需求」，行政院農業委員會特有生物研究保育中心，(2005)。

14.施尚粟、李鴻源、胡哲通，「台中柳川應用生態工法於魚類棲地改善之研究」，中華水土保持學報，35(3)：229-239 (2004)。

39.Fish and Wildlife Service U.S. Department of the Interior, ” Habitat Suitability Index Model：Common Carp”, FWS/OBS-82/10.12 (1982).

40.Fish and Wildlife Service U.S. Department of the Interior,” Habitat Suitability Information：Rainbow Trout” ,FWS/OBS-82/10.60 (1984).