大型溞和日本青鳉在水质在线生物安全预警应用中的比较  

Comparisons between applications of Daphnia magna and Japanese Medaka (Oryzias latipes) in the water quality on-line biomonitoring

作　　者：任宗明[1,2,3] 李志良[3] 王子健[2] 

机构地区：[1]中国科学院烟台海岸带可持续发展研究所,烟台264000 [2]中国科学院生态环境研究中心环境水质学国家重点实验室,北京100085 [3]山东师范大学生命科学学院,济南250014

出　　处：《给水排水》2009年第5期32-37,共6页Water & Wastewater Engineering

基　　金：中国科学院生态环境研究中心环境水质学国家重点实验室开放项目(2008-006)

摘　　要：讨论了利用大型溞和日本青鳉作为受试生物,通过在线监测两种受试生物行为变化反映水质变化状况的优缺点。结果表明:首先,大型溞对水体污染比日本青鳉更敏感,针对某些污染物的监测水平甚至高于国家地表水标准的限值,而日本青鳉反应水平处于10倍以上地表水标准;其次,在连续监测过程中,大型溞行为变化未表现明显的昼夜规律性,而日本青鳉行为变化具有更明显的生物钟现象;第三,在连续在线监测过程中,大型溞持续监测只能维持7天左右,其续航能力明显弱于日本青鳉的30天以上监测周期。In this study, Daphnia magna and Japanese Medaka （Oryzias latipes） were discussed to evaluate the advantages and disadvantages of their application in the on-line biomonitoring of water qualities. The results suggested that. Ist, Daphnia magna was more sensitive than Japa- nese Medaka, and some monitoring results of Daphnia magna were lower than environmental qua- lity standards for surface water, but the results of Japanese Medaka were 10 times more than the standards; 2^nd, in the on-line biomonitoring, the behavioral responses of Daphnia magna showed no circadian rhythms, but the behavioral responses of Japanese Medaka were in strong accordance with the biological clock; 3^rd, in the on-line biomonitoring, Daphnia magna could only last for 7 days, which was shorter than the 30 days period range of Japanese Medaka evidently.

关 键 词：大型溞 日本青鳉 水质 污染物 在线生物安全预警 

分 类 号：X52[环境科学与工程—环境工程]