【摘要】 2016年春季(5月)和夏季(8月)对河北昌黎黄金海岸自然保护区海域大型底栖动物群落进行了调查,对比分析了春、夏两季大型底栖动物种类数、丰度、生物量、优势种和生物多样性指数的差异。结果表明:春、夏季共鉴定出大型底栖动物分别为58种和92种,两季种类组成皆以多毛类为主;夏季大型底栖动物丰度略高于春季,而生物量要明显小于春季。采用Bray-Curtis相似性系数聚类分析和多维排列尺度(MDS)分析相结合的方法,分析了春、夏季大型底栖动物群落结构,春季可分为3个群落,夏季可分为2个群落。采用ABC曲线法来监测环境污染对大型底栖动物群落的扰动情况,表明该海域大型底栖动物群落受到了严重的环境污染或扰动。更多还原

【Abstract】 Macrobenthic communities in the surrounding waters of Changli were investigated during spring and summer in 2016. Differences in species quantity, abundance and biomass, the dominant species and species diversity index of macrobenthos were analyzed. The results showed that 58 macrobenthos species were identified in spring, and 92 macrobenthos species were identified in summer. The composition of dominant species seasonally varied; however, most of them were species belonging to Polychaeta. The abundance of macrobenthos in summer was slightly higher than that in spring, while the biomass in summer was significantly smaller than that in spring. Bray-Curtis cluster analysis and multi-dimentional scaling(MDS) analysis indicated that macrobenthic communities were divided into three communities in spring, and two in summer. The abundance-biomass comparison(ABC) curve method was used to monitor the disturbance of environmental pollution for macrobenthic community. The results showed that the macrobenthos in this area received serious disturbance from environmental pollution.更多还原