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水產研究(1993年創刊)

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  • 日期: 2019-05-21
水產研究(1993年創刊)-六種化學物對鱸鰻苗之急性毒研究
主題: 六種化學物對鱸鰻苗之急性毒研究
摘要(中):
本試驗探討在20 ℃及30 ℃水溫下,硫酸銅、美舒添、高錳酸鉀、福馬林、碘劑及BKC等六種常用化學物,對鱸鰻 (Anguilla marmorata)苗之急性毒及半致死濃度 (LC50)。結果顯示,六種化學物對鱸鰻苗 96 h之LC50值,在20 ℃時分別為:硫酸銅3.90 ppm、高錳酸鉀1.75 ppm、福馬林146.44 ppm、美舒添5.46 ppm、碘劑0.80 ppm 及BKC 7.02 ppm;在30 ℃時,則分別為硫酸銅3.06 ppm、高錳酸鉀1.65 ppm、福馬林131.46 ppm、美舒添1.41 ppm、碘劑0.69 ppm 及BKC 6.91 ppm。兩個試驗溫度下,由LC50值顯示毒性以碘劑最強,其次在20 ℃依序為高錳酸鉀、硫酸銅、美舒添、BKC、福馬林;在30 ℃依序為美舒添、高錳酸鉀、硫酸銅、BKC、福馬林。在30 ℃水中,毒性都有升高趨勢,其中以美舒添較明顯。由試驗結果顯示,碘劑 50 ~ 200 ppm 作10 ~ 15 min短時間及高錳酸鉀3 ~ 5 ppm作長時間藥浴,在兩種水溫皆不適用於鱸鰻苗。而硫酸銅以8、100及500 ppm 各藥浴30、20及1 min;美舒添以100 ppm藥浴60 min;高錳酸鉀以20 ppm 藥浴20 min;福馬林以200、 250及400 ppm各藥浴60、30及15 min皆可適用。
出版日期: 2012/12/31
標題title(英): Acute Toxicity of Six Chemicals on Swamp Eel (Anguilla marmorata) Elvers
作者: 林天生
卷別: 20
期別: 2
頁碼: 25-36
作者 auther(英): Tain-Sheng Lin
摘要abstract(英): The aim of this study was to investigate the median lethal concentration (LC50)of six chemicals on swamp eel (Anguilla marmorata) elver under two controlled temperatures, 20 ℃ and 30 ℃. Commonly used concentrations of agents were also examined for swamp eel. Under 20 ℃, the 96 hour LC50 values of copper sulfate, potassium permanganate, formalin, Masoten, iodine preparation and Benzalkonium chloride (BKC) were 3.90, 1.75, 146.44, 5.46, 0.80, and 7.02 ppm, respectively. When temperature was 30oC, their LC50 values were 3.06, 1.65, 131.46, 1.41, 0.69, and 6.91 ppm, respectively. These indicated that the agents were more toxic to the fish at 30 ℃ than at 20 ℃. The relative toxicity of iodine preparation was stronger than the other agents. The relative toxicity of agents was in the following order: potassium permanganate, Masoten, copper sulfate, BKC, and formalin at 20 ℃ and Masoten, potassium permanganate, copper sulfate, BKC, and formalin at 30 ℃. The results also showed that the commonly used concentration of 50-200 ppm iodine preparation for 10-15 min and 3-5 ppm potassium permanganate for long-term exposure were not suitable to swamp eel. Moreover, the exposure duration of 8, 100 and 500 ppm copper sulfate for 30, 20 and 1 min, 100 ppm Masoten for 60 min, 20 ppm potassium permanganate for 20 min, 200, 250 and 400 ppm formalin for 60, 30, and 15 min, respectively were suitable.
使用語言: 中文
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