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題名 | 臺灣鏟頜魚與臺灣石□在改良型舟通式魚道上溯時間之試驗研究=Up-migrated Time of Varicorhinus Barbatulus and Acrossocheilus Formosanus in Modified Boat-passage Fishways |
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作者姓名(中文) | 胡通哲; 莊明德; | 書刊名 | 農業工程學報 |
卷期 | 50:3 2004.09[民93.09] |
頁次 | 頁82-88 |
分類號 | 439 |
關鍵詞 | 臺灣鏟頜魚; 臺灣石□; 改良型舟通式魚道; 百分之五十上溯時間; 機率核; Varicorhinus barbatulus; Acrossocheilus paradoxus; Probit; Modified boat-passage fishway; Time of cumulative 50% up-migrated fish; |
語文 | 中文(Chinese) |
中文摘要 | 以台灣鏟頜魚及台灣石□進行24小時共五場魚道試驗,試驗魚道為坡度1/10、寬度1.0m、長度12.0m的改良型舟通式魚道,試驗流量為0.032cms。將累積上溯的試驗魚比例轉換成機率核之值,據以推求試驗魚百分之五十上溯時間(T(subscript 50)),根據本研究五場試驗結果,台灣鏟頜魚T(subscript 50)平均為0.92 hr,台灣石□為1.11hr,整體而言台灣鏟頜魚上溯的速度較快。 |
英文摘要 | This paper provides analysis methods for evaluating the time of 50% up-migrated fish. Some experiments were done for the up-migrated fishes including Varicorhinus barbatulus, Acrossocheilus paradoxus, time duration was 24 hours. The slope of tested fishway (modified boat-passage fishway / modified Larinier fishway) was 1/10, width was 1.0m, length was 12.0m, discharge was 0.032 cms. Transform the cumulative percent of up-migrated fish to the value of Probit, then compute the time of cumulative 50% up-migrated fish(T(subscript 50)). As to the experiments, the T(subscript 50) of the Varicorhinus barbatulus fish was 0.92 hours and the Acrossocheilus paradoxus fish was 1.11 hours. The average speed of the up-migration of the Varicorhinus barbatulus fish was faster than the Acrossocheilus paradoxus fish. |
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