论文部分内容阅读
为了解中国林蛙(Ranachensinensis)蝌蚪对水环境中碳酸盐碱度和pH的适应能力,采用单因子静态急性毒性实验法进行研究。结果表明,在pH7 0～8 5、盐度0 18g/L时,碳酸盐碱度对中国林蛙蝌蚪的24h、48h、72h和96hLC50值分别为14 36、11 83、10 35和7 68mmol/L,安全值(SC)为2 41mmol/L。在相同盐度下,碳酸盐碱度为1 41mmol/L时,中国林蛙蝌蚪的pH为24、48、72和96hLC50值,碱性范围分别为10 33、10 18、10 08和10 02,酸性范围分别为3 92、4 07、4 11和4 16。建议野外蝌蚪养殖水体的pH应控制在6 0～8 0,碳酸盐碱度保持在1 5～3 5mmol/L。
In order to understand the adaptability of tadpoles of Ranachensinensis to carbonates alkalinity and pH in aquatic environment, a one-factor static acute toxicity test was used to study the effects of tadpoles on water adaptability. The results showed that at pH7 0 ~ 85 and salinity 0 18 g / L, the carbonate alkalinity at 14 h, 48 h, 72 h and 96 h of Tadpole of Chinese Rana chensinensis were 14 36, 11 83, 10 35 and 7 68 mmol / L, the safety value (SC) of 2 41mmol / L. Under the same salinity, the carbonate alkalinity was 141 mmol / L, the pH value of Chinese tadpole Rana temporariae was 24, 48, 72 and 96 hLC50, the basic range was 10 33,10 18,108 and 10 02 , The acidity range is respectively 3 92,4 07,4 11 and 4 16. It is suggested that the pH value of wild tadpoles should be controlled at 60 ~ 80 and the carbonate basicity should be kept at 15 ~ 35 mmol / L.