低pH水环境对2种淡水枝角类生长及生殖的影响  

Effects of low pH water environment on growth and Reproduction of Two Freshwater Cladoceran Varieties

作　　者：黄小娜 杨继富 张玉面 吴大香 HUANG Xiaona;YANG Jifu;ZHANG Yumian;WU Daxiang(College of Biological Science and Agriculture,Qiannan Normal University for Nationalities,Duyun,Guizhou 558000,China)

机构地区：[1]黔南民族师范学院生物科学与农学院,贵州都匀558000

出　　处：《贵州农业科学》2018年第3期88-92,共5页Guizhou Agricultural Sciences

基　　金：贵州省科学技术基金项目[黔科合J字(2015)2136];贵州省教育厅自然科学基金项目[黔教合KY字(2016)318];贵州省普通高等学校南部特色生物资源研发创新团队项目[黔教合人才团队字(2015)68];黔南民族师范学院高层次人才项目(qnsyrc201501)

摘　　要：为探明有利于枝角类生长生殖的最佳pH水环境,促进淡水枝角类的繁殖,以老年低额溞和西伯利亚低额溞为材料,分为试验组(喂食)和对照组(不喂食),研究其在4种不同pH(4、5、6、7)水中的生长生殖情况。结果表明:不喂食时,老年低额溞和西伯利亚低额溞的体长、龄期、寿命、怀卵数的最大值都出现在pH 5的水中;喂食时,老年低额溞在pH 6的水中生长生殖情况最好,相同龄期和寿命下的西伯利亚低额溞在pH 6的水中体长最长,怀卵数最多,在pH 5的水中龄期和寿命最长。To explore the optimal pH water environment for cladoceran growth and reproduction,so as to promote the reproduction of freshwater cladoceran,Simocephalus vetulus and Simocephalus sibiricus were divided into test group(feeding)and control group(not feeding)to study the effects of different water pH(4,5,6,7)on the growth and reproduction.Results:The maximum value of body length,instars,life time,and number of eggs of S.vetulus and S.sibiricus in the control group appeared in the water with pH 5.While in the test group,the growth of S.vetulus with water pH 6 was the best,the body of S.sibiricus with the same instars and life time was the longest and the number of eggs reached the maximum in water with pH 6.The maximum instars and the life time of S.sibiricus appeared in the water with pH 5.

关 键 词：淡水枝角类 低pH水环境 龄期 寿命 体长 怀卵量 

分 类 号：S917.4[农业科学—水产科学] Q17[生物学—水生生物学]