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題 名 | 無線電量測系統應用在魚道溯游研究之初步實驗評估=Assessment of Preliminary Experimental Fishway Study on Upstream Migration Applying a Telemetry System |
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作 者 | 吳富春; 李國昇; | 書刊名 | 農業工程學報 |
卷 期 | 44:1 1998.03[民87.03] |
頁 次 | 頁59-66 |
分類號 | 439.19 |
關鍵詞 | 無線電量測系統; 魚道水理特性; 溯游; 水工模型; Telemetry system; Fishway hydraulics; Upstream migration; Physical model; |
語 文 | 中文(Chinese) |
中文摘要 | 本文主旨在說明無線電儀量測系統在魚道溯游研究上之應用並討論初步實驗之結 果。過去有關魚道之研究大多以水工模型試驗量測魚道中流況之分佈,進而探討其水理特性 ,然而有關魚道水理特性對魚類溯游行為之影響則並未加以探討。本研究之目的即利用編碼 式無線電訊號發報器配合數位頻譜處理器、無線電接收器與水中天線所組成之無線電儀量測 系統監測魚隻在魚道中之溯游策略與行為,以瞭解魚道中各種不同流速、水深、渦流區及滯 流區之分佈與魚類溯游行為之關係,進而找出對魚類溯游有利之水理條件,以提供臺灣地區 未來魚道設計或現有魚道改善較精確之參考依據。根據魚道溯游初步試驗結果顯示,本系統 可確實反應魚隻在魚道中之所在位置及其移動之情況,初步實驗過程中,試驗魚受到外在誘 因之影響時,可連續通過四個隔板潛孔,平均溯游速度達 25 cm/s。本初步試驗亦提供後續 實驗改進之方向。 |
英文摘要 | Application of telemetry system on fishway study and preliminary experiments of upstream migration are presented. Previous fishway studies mostly deal with scale-down physical models and flow measurements to investigate hydraulic characteristics of fishways. The influences of fishway hydraulics on upsteam migration are, however, rarely discussed. The present study employs a telemetry system consisting of coded-signal transmitters, digital spectrum processor, telemetry receiver, and underwater antennae to monitor the swimming strategy and behavior of the migratory species. The influences of various patterns of current, flow depth, vortex and stagnation area on migratory behavior are to be inspected. Such information provides precise guidelines for modification of existing fishways and future fishway design. The results of preliminary experiments indicate the telemetry system can locate the exact position of testing fish and monitor its migration. The testing fish can continuously move through four baffles with mean speed of 25 cm/s when subjected to stimulation. The preliminary experiments also highlight the possibility of improving future study. |
本系統中英文摘要資訊取自各篇刊載內容。