查詢結果分析
來源資料
頁籤選單縮合
題 名 | 石扝對生態環境適應能力研究 |
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作 者 | 彭弘光; | 書刊名 | 水產研究 |
卷 期 | 1:2 1993.12[民82.12] |
頁 次 | 頁25-30 |
分類號 | 438.661 |
關鍵詞 | 石扝; 耗氧量; Acrossocheilus formosanus; Oxygen consumption; |
語 文 | 中文(Chinese) |
中文摘要 | 本報告所使用之試驗魚為分所內自行養殖者,經挑選健康而無外傷之石�戊膚@為試驗用,其結果為:石�汀擳奐U大,其單位時間之呼吸次數愈少,同一尾魚,水溫愈低,其呼吸次愈少,水溫愈高,呼吸次數愈多;石�戊怜狎P死溫度大約在35.5∼36.5℃之間,和魚體大小無多大關係,而最低致死溫度大約在5.5∼7.0℃之間,魚體愈大,最低致死溫度愈低,反之愈高;石�它b水中耗氧量,同一體型魚 (55∼56 g) 在30℃水溫,水量25 L 每尾魚2.5小時之耗氧量為1.73 ppm,而在15℃水溫則為0.72 ppm。體型較小者(10∼13 g),每尾魚2.5小時之耗氧量在30℃及15℃水溫均約為0.5 ppm,受水溫高低之影響不很明顯。而在高水溫30℃下,魚體愈大,其耗氧量愈高。致死溶氧量在水溫30℃時約為1∼1.2 ppm,和魚體大小無關;體長2.82±0.196 cm,體重0.21 ± 0.042 g之石�平]在15℃、20℃、25℃、30℃ 四種不同水溫飼育50天結果,體長、體重順次為3.01 cm、0.253 g;3.69 cm、0.48 g;4.11 cm、0.761 g;4.31 cm、0.852 g,溫度愈高成長愈快,經分析結果,25℃與30℃水溫所飼育之魚苗在50天時,其體長、體重並無顯著差異,可推測石�奶屁i殖適當水溫在25∼30℃之間。 |
英文摘要 | The fish used for this study was Acrossocheilus formosanu which had been cultivated by this laboratory. Only healthy fish without injury were selected for the experiments, of which the results are given below: The higher the weight, the fewer the number of breaths per unit time. For the same fish, the lower the water temperature, the fewer the number of breaths; The lethal high temperature was between 35.5∼36.5℃, regardless of the body weight. The lethal low temperature is between 5.5∼7.0℃. The higher the body weight, the lower the lethal low temperature; For the group weighting between 55∼56 g, each fish consumes the oxygen of 1.73 ppm in 2.5 h at 30℃, and 0.72 ppm at 15℃, in 25 liter of water. For the group of lower weight (10∼13 g), a fish consumes about 0.5 ppm in 2.5 h at both 30℃ and 15℃ water temperature, in the same water volume. Relatively unaffected by the temperature, the heavier the body weight, the more the oxygen consumes at the high temperature (30℃). The lethal low dissolved oxygen is between 1.0∼1.2 ppm at 30℃, regardless of the body weights; For those of length 2.82±0.196 cm and weight 0.21± 0.42 g, they grew to 3.01 cm, 0.253 g; 3.69 cm, 0.48 g; 4.11 cm, 0.761 g; and 4.31 cm, 0.852 g, at of 15℃, 20℃, 25℃, and 30℃, respectively. It can be said that the higher the temperature, the faster the growth rate. From our investigation, the body length and weight of the fish do not show any apparent difference, at both 30℃ and 25℃, after 50 day of cultivation. It can be concluded that the most suitable temperature or cultivating Acrossocheilus formosanus is between 25∼30℃. |
本系統中英文摘要資訊取自各篇刊載內容。