温度和光照对铜绿微囊藻、大型溞和金鱼藻共同培养的影响  

Influences of Temperature and Illumination on Co-cultivation Among Microcystis aeruginosa,Daphnia magna and Ceratophyllum demersum

作　　者：靳萍[1] 郭萌[1] 徐婷婷[1] 杨程[1] 蔺庆伟[1] 靳同霞[1] 马剑敏[1,2] 

机构地区：[1]河南师范大学生命科学学院,新乡453007 [2]河南省环境污染控制重点实验室,黄淮水环境与污染防治省部共建教育部重点实验室,新乡453007

出　　处：《水生态学杂志》2013年第5期65-70,共6页Journal of Hydroecology

基　　金：国家水体污染控制与治理科技重大专项(No.2012ZX07101007-005);河南省创新型科技人才队伍建设工程

摘　　要：为了解温度和光照对生物操纵和水生植物恢复的影响，选择铜绿微囊藻（Microcystisaeruginosa）、大型潘（Daphniamagna）和金鱼藻（Ceratophyllumdemersum）分别作为浮游植物、浮游动物和大型沉水植物的代表，将其在11mg／L氮浓度和不同磷浓度（0．2、0，5、1．0、1．5mg／L）培养液中共同培养，研究不同温度（15、20、25、30℃）和光照强度（1100、2200、3400、4500lx）对藻一潘一草三者共同培养的影响。结果表明，温度对生物操纵和水生植物恢复影响显著；温度15℃时，磷浓度的改变对控藻效果影响不大，但金鱼藻的增长率较其它温度时低；温度在20～25℃时，大型潘的增长率较高，生物操纵效果较好，且0．2mg／L的磷浓度对金鱼藻的生长最有利；30℃时，大型涵增长率最小，在此温度下，当磷浓度达到1．5mg／L时，铜绿微囊藻出现正增长，此时不能有效控制铜绿微囊藻。光照强度在1100～2200lx时，所有磷浓度下金鱼藻和大型潘的增长率都高于铜绿微囊藻，控藻效果明显；光照强度3400～4500Ix时，磷浓度对生物操纵和水生植物恢复的影响要高于光照因素，且磷浓度在0．2—0．5mg／L时控藻效果好，更有利于水生植物恢复。In order to study the influence of temperature and illumination on biomanipulation and aquatic macro- phyte restoration, Microcystis aeruginosa, Daphnia magna and CeratophyUum demersum were selected respectively as the representative of phytoplankton, zooplankton and submerged macrophyte. They were co-cultured in the nitro- gen wit concentrate of 11 mg/L and in the nutrient solution of phosphorus with different concentrate of 0.2, 0.5, 1.0, 1.5 mg/L. And it studied the influence of different temperature （15, 20, 25, 30~C ） and different illumina- tion intensity （1 100, 2 200, 3 400, 4 500 lx） on co-cultivation among Microcystis aeruginosa, Daphnia magna and Ceratophyllum demersum. The results showed that it had obvious effect of temperature on biomanipulation and aquatic macrophyte restoration. When the temperature was 15~C, the influence of the change of phosphorus concen- tration on controlling algae was little, but the growth rate of C. demersum was lower than in other temperature. When the temperature was 20 to 25 ~C , the growth rate of D. magna was higher with better effect of biomanipula- tion, and 0.2 mg/L phosphorus was most suitable for growth of C. demersum. When the temperature was 30~C, the growth rate of D. magna was lowest. Under this temperature, M. aeruginosa appeared positive growth with the phosphorus concentration of 1.5 rag/L, and it couldn＇t be controlled effectively. The growth rate of D. magna and C. demersum was higher than M. aeruginosa under all phosphorus concentration when the illumination intensity was between 1 100 lx and 2 200 lx, and the effect of controlling algae was obvious. When the illumination intensity was between 3 400 lx and 4 500 Ix, the influence of phosphorus concentration on biomanipulation and aquatic macro- phyte restoration was greater than illumination. Moreover it is more effective to control algae boom and reestablish a- quatic macrophyte when the phosphorus concentration was 0.2 - 0.5 mg/L.

关 键 词：铜绿微囊藻 大型溞 金鱼藻 温度 光照 共同培养 

分 类 号：Q142[生物学—生态学]