CAJ | 학술논문

2014年7月至12月,对贵州草海湿地自然保护区9个采样点的大型底栖动物种类组成﹑分布和现存量进行调查,利用指示生物结合生物学指数进行水质评价. 结果表明,草海湿地自然保护区大型底栖动物物种种类丰富,生物多样性较高,共发现大型底栖动物29种,隶属于3门6纲15科,昆虫纲和腹足纲为绝对优势种,分别为6种﹑16种;寡毛纲2种,蛭纲2种,甲壳纲2种,瓣鳃纲1种,物种分析表明纹沼螺﹑静水椎实螺﹑赤豆螺﹑苏氏尾鳃蚓﹑雕翅摇蚊﹑卵萝卜螺﹑葛氏米虾﹑梨形环稜螺﹑拟钉螺﹑环足摇蚊为草海湿地优势种. 草海湿地大型底栖动物密度在各样点呈现一定差异,DV最大,为1 824 ind/m2,DⅦ最小, 为96 ind/m2, 在9采样点中生物量值的变化范围为2.74~557.03 g/m2, 平均生物量为168.13 g/m2,Margalef指数平均值为1.62,Shannon-Wiener指数平均值为2.49,采用生物学污染指数(IBP)与Chandler生物指数(ICB)对草海湿地的水质进行生物评价,结果得出目前该水体处于中度污染状态.
2014년7월지12월,대귀주초해습지자연보호구9개채양점적대형저서동물충류조성﹑분포화현존량진행조사,이용지시생물결합생물학지수진행수질평개. 결과표명,초해습지자연보호구대형저서동물물충충류봉부,생물다양성교고,공발현대형저서동물29충,대속우3문6강15과,곤충강화복족강위절대우세충,분별위6충﹑16충;과모강2충,질강2충,갑각강2충,판새강1충,물충분석표명문소라﹑정수추실라﹑적두라﹑소씨미새인﹑조시요문﹑란라복라﹑갈씨미하﹑리형배릉라﹑의정라﹑배족요문위초해습지우세충. 초해습지대형저서동물밀도재각양점정현일정차이,DV최대,위1 824 ind/m2,DⅦ최소, 위96 ind/m2, 재9채양점중생물량치적변화범위위2.74~557.03 g/m2, 평균생물량위168.13 g/m2,Margalef지수평균치위1.62,Shannon-Wiener지수평균치위2.49,채용생물학오염지수(IBP)여Chandler생물지수(ICB)대초해습지적수질진행생물평개,결과득출목전해수체처우중도오염상태.
Macrozoobenthos were sampled by Peterson grab to study the community structure in winter in Caohai nature reserve from July to December,2014.The water quality of Caohai wetland was evaluated by ecological indicators combined with biological indices.Results indjcate that the macrozoobenthos in Caohai wetland with high species diversity are abundant.A total of 29species of macrozoobenthos, belonging to 3 phyla, 6 orders and 33 family, were found in the study area.Insecta and Gastropoda were absolutely dominant ecological groups, which were 6 species and 16 species respectively.2 species belonged to Oligochaeta.2 species to Hirudinea,2 species to Crustacca, only 1 species belonged to Lamellibranchia.P.striatulus,Lymnaea stagnalis,Bithynia fuchsiana,Branchiura sowerbyi,Glyptotendipes,R.ouata,C.gregoryiana,B.purificata,Tricula and Cricotopus were dominate in Caohai wethland.Species densities were different in every sampling site.The maximum value was 1 824 individuals per square meter, and the minimum value was 96 individuals per square meter, Biomass ranges from 2.74 g/m2 to 557.03 g/m2 in the night sampling sites, with a mean biomass of 168.13 g/m2.Shannon-Wiener diversity index and Margalef richness index were 2.49 and 1.62, respectively.The water quality assessment by the biological index of pollution and Chandler Biotic Index showed that Caohai wetland was moderately polluted.