欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 2004, Vol. ›› Issue (8): 1411-1415.

• 研究论文 • 上一篇    下一篇

中国林蛙变态蝌蚪对pH、盐度和碱度的适应性

杨富亿, 邵庆春, 李景林, 陈国双   

  1. 中国科学院东北地理与农业生态研究所, 长春 130012
  • 收稿日期:2003-07-10 修回日期:2003-11-28
  • 通讯作者: 杨富亿,男,1964年生,副研究员,主要从事湿地生态学研究.Tel:0431-5542234;E-mail:yangfuyi@mail.neigae.ac.cn.
  • 基金资助:
    国家“九五”科学技术攻关项目(960040209);中国科学院知识创新工程资助项目(KZCX1YCA07)

Adaptability of abnormal tadpole (Rana chensinensis) to water pH,salinity and alkalinity in Changbai Mountain of China

YANG Fuyi, SHAO Qingchun, LI Jinglin, CHEN Guoshuang   

  1. Northeast Institute of Geography and Agricultural Ecology, CAS, Changchun 130012, China
  • Received:2003-07-10 Revised:2003-11-28

摘要: 在水温16~18℃的野外条件下,采用单因子急性毒性实验法,研究了水环境中pH、盐度和碱度对中国林蛙(Rana chensinensis)变态蝌蚪的毒性效应.结果表明,中国林蛙变态蝌蚪对pH的适应范围为4.3~9.7,最低耐受限3.6,最高耐受限10.7;对盐度的最高耐受限为9.98 g·L-1,适应盐度上限7.14 g·L-1,安全盐度上限1.70 g·L-1;对碱度的最高耐受限为19.96 mmol·L-1,适应碱度上限8.76 mmol·L-1,安全碱度上限2.41 mmol·L-1.野外变态蝌蚪饲养池水体pH应控制在6.5~8.5,盐度控制在2.0 g·L-1以下,碱度不超过4.0 mmol·L-1.中国林蛙变态蝌蚪是一种狭酸碱、低耐盐、低耐碱生物.

关键词: 中国林蛙, 变态蝌蚪, pH, 盐度, 碱度, 适应性

Abstract: Under field condition with 16~18℃ water temperature,single-factor acute toxicity test was used to study the toxicity effects of water pH,salinity and carbonate-alkalinity on abnormal tadpole (R.chensinensis).The results showed that when the water salinity was 0.18 g·L-1,carbonate-alkalinity was 1.41 mmol·L-1,and water pH was 4.3~9.7,the survival rate of abnormal tadpole within 96 hours was not affected.The upper limit of LC50 for the pH within 24,48,72 and 96 hours was 10.33,10.18,10.08 and 10.02,and the prescribed minimum was 3.92,4.07,4.11 and 4.16,respectively.The upper limit of LC0 was 9.95,9.80,9.70 and 9.70,and the prescribed minimum was 4.23,4.45,4.30 and 4.30,and that of LC100 was 10.70,10.55,10.45 and 10.33,and the prescribed minimum was 3.55,3.70,3.92 and 4.03,respectively.The survival rate of abnormal tadpole within 96 hours was not affected in the water salinity between 2.0~3.0 g·L-1.When water pH was 7.0~8.5 and carbonate-alkalinity was 1.41mmol·L-1,the LC50 of the salinity within 24,48,72 and 96 hours was 8.21,7.25,5.17 and 3.70 g·L-1,the LC0 was 7.14,6.00,2.67 and 2.20 g·L-1,and the LC100 was 9.98,9.00,7.67 and 5.20 g·L-1,respectively,while the SC was 1.70 g·L-1.Under the same water pH and when the water salinity was 0.18 g·L-1,the LC50 of carbonate-alkalinity within 24,48,72 and 96 hours was 14.36,11.83,10.35,and 7.68 mmol·L-1,the LC0 was 8.76,8.51,4.65 and 3.88 mmol·L-1,and the LC100 was 19.96,15.14,16.05 and 11.48 mmol·L-1,respectively,while the SC was 1.70 mmol·L-1.The survival rate of abnormal tadpole (R.chensinensis) was decreased with increasing water pH,salinity and carbonate-alkalinity.The optimum water salinity and carbonate-alkalinity to the survival and the growth of abnormal tadpole (R.chensinensis) were below 2.0 g·L-1 and 3.0 mmol·L-1,respectively,and water pH was between 6.0 and 9.0.

Key words: Rana chensinensis, Abnormal tadpole, pH, Salinity, Alkalinity, Adaptability

中图分类号: