CAJ | 학술논문

选取发光细菌、大型溞和斑马鱼这三种不同营养层级的生物作为实验对象，用镉和铬作为污染物，测定镉和铬对各种生物的急性毒性影响，结果显示，无论是发光菌、大型溞还是斑马鱼，镉的毒性都大于铬，但是其半致死浓度差异很大。说明不同营养级生物具有不一样的敏感性，对整个水生态系统的功能以及稳定起着重要作用的是每一个营养级上的生物。
선취발광세균、대형소화반마어저삼충불동영양층급적생물작위실험대상，용력화락작위오염물，측정력화락대각충생물적급성독성영향，결과현시，무론시발광균、대형소환시반마어，력적독성도대우락，단시기반치사농도차이흔대。설명불동영양급생물구유불일양적민감성，대정개수생태계통적공능이급은정기착중요작용적시매일개영양급상적생물。
This research selects three different trophic levels of organisms as experimental subjects (luminescent bacteria, Daphnia magna and zebrafish), cadmium and chromium as a pol utant, detect their acute toxicity on various organisms, the results shows that both luminescent bacteria, Daphnia magna or zebrafish, cadmium toxicity is greater than chrome, semilethal concentrations vary widely. This Il ustrates that the sensitivities of different trophic level organisms is not the same, Al biological play an important role on both the stability and function of the entire water ecosystems.