基于大型底栖动物摄食群上的生态质量评价
发布时间：2018-11-04 09:11
【摘要】：基于2011年5月和9月航次获取的大型底栖动物和环境数据,采用建立在功能摄食群上的摄食均匀度指数(the feeding evenness index,jFD)并辅以建立在群落结构指标上的多元AZTI海洋生物指数(Multivariate AZTI Marine Biological Index,M-AMBI)评价渤海湾生态质量状况.本研究将所有大型底栖动物划分为5个摄食群,但2个航次均未发现植食者.从物种丰富度的角度看,碎屑食者和肉食者占比最高;从栖息密度的角度看则是浮游生物食者占比最高,而杂食者则在上述两个指标中均占比最低.摄食均匀度指数值大都低于0.60,说明研究区大部分海域的大型底栖动物群落受到不同程度的干扰,生态环境质量较差,这可能与该海域所受到的人为干扰如陆源排污、围海造陆有关.与M-AMBI相比,二者指示的渤海湾生态质量状况基本一致,且均能敏感地响应渤海湾近岸河口至离岸海域的环境压力梯度.总体上来讲,jFD适用于评价渤海湾的生态质量状况.
[Abstract]:Based on the data of macrobenthos and environment from May and September 2011, the feeding evenness index (the feeding evenness index,) based on functional feeding groups was used. JFD) and the multivariate AZTI marine biological index (Multivariate AZTI Marine Biological Index,M-AMBI) based on the index of community structure to evaluate the ecological quality of Bohai Bay. In this study, all macrobenthos were divided into 5 feeding groups, but no vegetarians were found on two voyages. From the perspective of species richness, the ratio of detritus and carnivore was the highest, and that of plankton was the highest from the point of habitat density, while the ratio of omnivore was the lowest among the above two indexes. Most of the index values of feeding evenness are lower than 0.60, which indicates that the macrobenthos communities in most of the sea areas in the study area are disturbed to varying degrees and the ecological environment quality is poor, which may be related to the anthropogenic disturbance in this area such as land-based sewage discharge. Relating to reclamation of land by sea. Compared with M-AMBI, the ecological quality of Bohai Bay indicated by both of them is basically the same, and both of them can sensitively respond to the environmental pressure gradient from the inshore estuary to the offshore area of the Bohai Bay. Generally speaking, jFD is suitable for evaluating the ecological quality of Bohai Bay.
【作者单位】： 中国环境科学研究院环境基准与风险评估国家重点实验室;中国环境科学研究院国家环境保护河口与海岸带环境重点实验室;
【基金】：国家自然科学基金资助项目(41406160) 国家环保公益性行业专项(201309007)
【分类号】：X826
[Abstract]:Based on the data of macrobenthos and environment from May and September 2011, the feeding evenness index (the feeding evenness index,) based on functional feeding groups was used. JFD) and the multivariate AZTI marine biological index (Multivariate AZTI Marine Biological Index,M-AMBI) based on the index of community structure to evaluate the ecological quality of Bohai Bay. In this study, all macrobenthos were divided into 5 feeding groups, but no vegetarians were found on two voyages. From the perspective of species richness, the ratio of detritus and carnivore was the highest, and that of plankton was the highest from the point of habitat density, while the ratio of omnivore was the lowest among the above two indexes. Most of the index values of feeding evenness are lower than 0.60, which indicates that the macrobenthos communities in most of the sea areas in the study area are disturbed to varying degrees and the ecological environment quality is poor, which may be related to the anthropogenic disturbance in this area such as land-based sewage discharge. Relating to reclamation of land by sea. Compared with M-AMBI, the ecological quality of Bohai Bay indicated by both of them is basically the same, and both of them can sensitively respond to the environmental pressure gradient from the inshore estuary to the offshore area of the Bohai Bay. Generally speaking, jFD is suitable for evaluating the ecological quality of Bohai Bay.
【作者单位】： 中国环境科学研究院环境基准与风险评估国家重点实验室;中国环境科学研究院国家环境保护河口与海岸带环境重点实验室;
【基金】：国家自然科学基金资助项目(41406160) 国家环保公益性行业专项(201309007)
【分类号】：X826
【参考文献】
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