CAJ | 학술논문

为了解和监测中华绒螯蟹、鳜鱼国家级水产种质资源保护区生态系统的结构特征，为更好的建设保护区和保护区内的水生生物资源，于2013年6月在保护区内均匀设置20个采样点，对该保护区水域水质和浮游动物的群落结构进行了调查研究。结果表明：（1）水域水质处于轻度污染，但在空间上有一定的差异，有富营养化的趋势。水质综合营养状态为贫营养，定性评价为优，为Ⅰ、Ⅱ类水。（2）在中华绒螯蟹、鳜鱼国家级水产种质资源保护区共检出浮游动物4门22种，其中原生动物种类数最多，为9种，占浮游动物总种类的40．91％；轮虫种类数次之，为5种，占浮游动物总种类的22．73％；桡足类和枝角类均为4种，占浮游动物总种类的18．18％。优势种主要集中在桡足类的湖泊美丽猛水蚤（Nitocralacustris）和英勇剑水蚤（Cyclops strenuus）以及原生动物盘状匣壳虫（Centropyxisdiscoides）、半球法帽虫（Phryganellahemisphaerica）和树状聚缩虫（Zoothamniumarbuscula）。保护区浮游动物密度为6．00～16．00 ind．/L，平均密度为10．65 ind．/L，生物量0．35～1．98 mg/L，平均含量为0．87 mg/L。保护区水域浮游动物多样性为Ⅳ较丰富，生物多样性阀值水域水质大致处于轻污染。保护区浮游动物Shannon指数平均值为2．57，均匀度指数平均值为0．93，丰富度平均值为2．58。结果显示：中华绒螯蟹、鳜鱼国家级水产种质资源保护区各采样点水质总体较好但在空间上有一定的差异；浮游动物物种的群落多样性丰富、群体结构的较稳定。
위료해화감측중화융오해、궐어국가급수산충질자원보호구생태계통적결구특정，위경호적건설보호구화보호구내적수생생물자원，우2013년6월재보호구내균균설치20개채양점，대해보호구수역수질화부유동물적군락결구진행료조사연구。결과표명：（1）수역수질처우경도오염，단재공간상유일정적차이，유부영양화적추세。수질종합영양상태위빈영양，정성평개위우，위Ⅰ、Ⅱ류수。（2）재중화융오해、궐어국가급수산충질자원보호구공검출부유동물4문22충，기중원생동물충류수최다，위9충，점부유동물총충류적40．91％；륜충충류수차지，위5충，점부유동물총충류적22．73％；뇨족류화지각류균위4충，점부유동물총충류적18．18％。우세충주요집중재뇨족류적호박미려맹수조（Nitocralacustris）화영용검수조（Cyclops strenuus）이급원생동물반상갑각충（Centropyxisdiscoides）、반구법모충（Phryganellahemisphaerica）화수상취축충（Zoothamniumarbuscula）。보호구부유동물밀도위6．00～16．00 ind．/L，평균밀도위10．65 ind．/L，생물량0．35～1．98 mg/L，평균함량위0．87 mg/L。보호구수역부유동물다양성위Ⅳ교봉부，생물다양성벌치수역수질대치처우경오염。보호구부유동물Shannon지수평균치위2．57，균균도지수평균치위0．93，봉부도평균치위2．58。결과현시：중화융오해、궐어국가급수산충질자원보호구각채양점수질총체교호단재공간상유일정적차이；부유동물물충적군락다양성봉부、군체결구적교은정。
Twenty sample sites were selected to investigate the water quality and the zooplankton commu-nity structure in the Eriocheir Sinensis Siniperca Chuatsi National Aquatic Germ Plasm Resources Protected Ar-eas for the purpose of better construction of protected areas and protection of the aquatic biological resources at the JingJiang part of Chang Jiang River in June 2013.The results showed:( 1) the water quality was slightly polluted ,but there were some differences in space and showed a trend of eutrophication .The comprehensive nu-trition status of the water quality was of poor nutrition , qualitative evaluation was excellent .( 2 ) A total of 4 classes including 22 species were identified , the dominated protozoanine species accounted for 40.91%;five species of cladocer took the second place ,accounting for 22.73%;four species of rotifera and and four species of copepoda accounted for 18.18%.The dominant species included two kinds of Cladocera ( Nitocralacustris, Cyclops strenuus)andthree kinds of Protozoa (Centropyxisdiscoides,Phryganellahemisphaerica,Zoothamniumar-buscula).The zooplankton density of the protected areas ranged from 6.00-16.00 ind./L,with an average of 10.65 ind./L.The biomass ranged from 0.35-1.98 mg/L,with an average of 0.87 mg/L.The zooplankton diver-sity of the protected water areas was Ⅳ.The biological diversity of the water quality threshold were roughly in light pollution .The analysis results of diversity and uniformity showed that the average Shannon index ,diversity index,uniformity index were 2.57,2.58 and 0.93 respectively.In conclusion,the water quality of each samples had not been severely polluted in the Eriocheir sinensis,Siniperca chuatsi National Aquatic Germ Plasm Re-sources Protected Areas ,and the zooplankton community structure diversity was abundant and stable .