食盐和酸碱度对中国林蛙蝌蚪的影响

Influence of table salt and acidity and basicity on tadpole(Rana chensinensis)

2000～2001年在吉林省柳河县大泉眼村林蛙增养殖试验示范区,进行了食盐和酸碱度对中国林蛙蝌蚪的影响实验,为蝌蚪病害防治、提高成活率提供科学依据。试验结果表明,中国林蛙蝌蚪是一种狭盐性、低碱盐的漠盐种生物,其24h、48h、72h和96hTLm值分别为8 97g L、7 12g L、5 64g L和3 83g L,安全含量为1 73g L。林蛙蝌蚪也是一种狭酸碱性生物,在pH值3 9～10 2范围内,至少可生存96h;pH值在4 3～9 7范围内,对蝌蚪存活率96h内无明显影响。

From 2000 to 2001, the experiments of influence of table salt and acidity and basicity on tadpole(Rana chensinensis) were conducted in breeding demonstration plot of Liuhe county, which provides a scientific basis for controlling diseases and raising survival rate of the tadpole. The experinental results show that the tadpole is a rocky desert ecospecies with stenohaline and low basicity, its numerical values of 24h,48h,72h and 96hTLm are 8.97g/L,7.12g/L.5.64g/L and 3.83g/L, safty level is 1.73g/L. Moreover, it is a stenoacid and basicity organismalso, which may survive at least 96h within the limits of 3.9～10.2pH and the influences at 4.3～9.7pH are of no significance.