CAJ | 학술논문

对东江干流浮游动物进行调查，并分析了其群落结构、生物量和丰度的空间分布特征及与主要环境因子的关系.46个采样点中共发现52种浮游动物，浮游动物的密度范围在1~3640 L-1之间，其中原生动物与轮虫类占总浮游动物密度的77%.优势种属为钟虫(Vorticella)、侠盗虫(Strobilidium)、团睥睨虫(Askenasiavolvox)、砂壳虫(Difflugia)、针簇多肢轮虫(Polyarthra trigla )、颈沟基合溞(Bosminopsis deiteris )、广布中剑水蚤(Mesocyclops leuckarti ).根据浮游动物各项指标值显示，东江干流水质良好.相关分析结果表明：浮游动物密度以及属类数均与叶绿素 a、CODMn、DO、电导率呈极显著的正相关关系(P<0.01)；不同类浮游动物与水质因子相关性程度不同，原生动物与电导率呈极显著正相关，轮虫与CODMn及温度呈极显著正相关，枝角类和桡足类均与 DO 呈极显著正相关.浮游动物的空间分布与水体水质因子关系密切.
대동강간류부유동물진행조사，병분석료기군락결구、생물량화봉도적공간분포특정급여주요배경인자적관계.46개채양점중공발현52충부유동물，부유동물적밀도범위재1~3640 L-1지간，기중원생동물여륜충류점총부유동물밀도적77%.우세충속위종충(Vorticella)、협도충(Strobilidium)、단비예충(Askenasiavolvox)、사각충(Difflugia)、침족다지륜충(Polyarthra trigla )、경구기합소(Bosminopsis deiteris )、엄포중검수조(Mesocyclops leuckarti ).근거부유동물각항지표치현시，동강간류수질량호.상관분석결과표명：부유동물밀도이급속류수균여협록소 a、CODMn、DO、전도솔정겁현저적정상관관계(P<0.01)；불동류부유동물여수질인자상관성정도불동，원생동물여전도솔정겁현저정상관，륜충여CODMn급온도정겁현저정상관，지각류화뇨족류균여 DO 정겁현저정상관.부유동물적공간분포여수체수질인자관계밀절.
Community structure of zooplankton in Dongj iang river such as genus richness,density and biodiversities was investigated, regression analysis between community index of phytoplankon and water quality parameters were performed.Fifty two genus of zooplankton were identified.Density of phytoplankton was found to be from 1~3 640 L-1 ,with 77% protozoa and rotifera.Vorticella sp.,Strobilidium sp., Askenasia volvox,Difflugia sp.and Polyarthra trigla were found to be dominant in algae community. Judging from values of zooplankton comprehensive index,Dongjiang river was not seriously polluted.Density of zooplankton was found to be positively correlated with CODMn,conductivity value,DO and Chla (P<0.01). Water quality factor correlation degree was different with different zooplankton.Protozoa was positively correlated with conductivity,rotifer was positively correlated with CODMn and temperature,cladocera and copepoda was positively correlated with DO. Zooplankton was related closely to maj or water quality parameters.