| Wang Li,Luo Xianxiang,Yang Jianqiang,Zhang Juan,Fan Yuqing,Shen Jiayu. 2020. Assessing benthic habitat quality using biotic indices in the Laizhou Bay, China. Acta Oceanologica Sinica, 39(2):49－58 |
| Assessing benthic habitat quality using biotic indices in the Laizhou Bay, China |
| 基于多种生物指数的中国渤海莱州湾海域底栖生境健康评价 |
| Received:May 30, 2018 |
| DOI：10.1007/s13131-020-1552-x |
| Key words:Laizhou Bay macrobenthos ecological quality status Shannon-Wiener index AMBI M-AMBI |
| 中文关键词: 莱州湾 大型底栖动物 生境质量状况 Shannon-Wiener index AMBI M-AMBI |
| 基金项目:The National Natural Science Foundation of China-Shandong Joint Fund for Marine Science Research Centers under contract No. U1606404; the National Basic Research Program (973 Program) of China under contract No. 2015CB453301; the National Marine Public Welfare Research Project of China under contract No. 201405007. |
| Author Name | Affiliation | E-mail | | Wang Li | Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China | | | Luo Xianxiang | Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China | lxx81875@ouc.edu.cn | | Yang Jianqiang | North China Sea Branch of Ministry of Natural Resources, Qingdao 266061, China | | | Zhang Juan | Shandong Marine Resources and Environment Research Institute, Yantai 264006, China | | | Fan Yuqing | Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China | | | Shen Jiayu | Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China | |
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| Abstract: |
| As an important part of the Bohai economic rim, the Laizhou Bay has been stressed by serious eco-environmental problems in recent years. In this study, the Shannon-Wiener index (H'), AZTI's marine biotic index (AMBI) and the multivariate AMBI (M-AMBI) were used to assess the ecological quality status (EQS) of the Laizhou Bay according to macrobenthos data collected annually in August 2011–2014. The results showed that the overall benthic habitat quality in the Laizhou Bay was assessed as "Good". However, 25% of the samples were classified as "Moderate", "Bad" or "Poor" status under degraded conditions. Ecological group III (EGIII) species which had a certain tolerance to environmental disturbances had a higher proportion in each station, and most of them had appeared the pollution indicator species Capitella capitata. This indicated that the benthic habitat in the Laizhou Bay had been disturbed and polluted to some extent. The comparison of the three indices evaluation result and the RDA analysis showed that the H' and M-AMBI were more suitable when the relative abundance of the single species was high and the macrobenthic community was significantly imbalanced; when the relative abundance of opportunistic species (EGIV and EGV) was high, the AMBI and M-AMBI could reflected the EQS objectively; in an undisturbed and polluted environment, all the three indices could indicate the benthic habitats quality. In summary, the better correlation between the three indices and environmental factors showed that they were well responsive to the tendency of the benthic habitats quality in the Laizhou Bay. |
| 中文摘要: |
| 莱州湾作为中国"环渤海经济圈"的重要组成部分在中国对外开放的沿海发展战略中地位重要，但近年来其生态健康状况令人堪忧。本文基于莱州湾海域2011年到2014年的4个航次的生态调查数据，Shannon-Wiener多样性指数、AMBI和M-AMBI指数被应用于该海域底栖生境健康的评价。结果显示，莱州湾底栖生境质量总体处于"良"的等级。但约25%的站位底栖生境质量处于"中"或以下的退化等级。对环境扰动有一定耐受力的生态组III物种（EGIII）在各站位中所占比例较高，且大部分站位出现了污染指示种小头虫。这说明莱州湾海域底栖生境已经受到一定程度扰动和污染。3种指数评价结果的对比和RDA分析表明，当某单一物种的丰度占绝对优势，底栖群落物种明显失衡的状态下，Shannon-Wiener多样性指数（H'）和M-AMBI指数能更好地反映底栖生境健康状况；当EGIV和EGV生态组的机会种物种丰度较高时，AMBI和M-AMBI指数能较客观地反映底栖生境健康状况。在未受扰动和污染的环境中，3种指数均能很好地指示底栖生境质量状况。总之，3种指数与环境因子较好的相关性显示，他们均能够很好地响应莱州湾底栖生境质量的变化趋势。 |
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