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| Ecological Characteristics of Macrobenthos near Mai Island during Autumn |
| JI Yinglu, ZHANG Naixing, WANG Lan, ZHANG Liang, PU Sichao, SUN Jingyi |
1. North China Sea Marine Forecasting Center of State Oceanic Administration, Qingdao 266061, China;
2. Shandong Provincial Key Laboratory of Marine Ecology and Environment & Disaster Prevention and Mitigation, Qingdao 266061, China |
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Abstract The present study aimed to reveal the status of macrofaunal community and diversity in the surrounding area of Mai Island in Qingdao. Samples were collected from 9 stations in October 2018. The biodiversity, macrobenthic community structure, and correlations between biotic and abiotic parameters were analyzed in this study. A total of 80 species of macrobenthic fauna were identified, including 57 species of annelids, 15 species of crustaceans, 3 species of mollusks, 2 species of echinoderms and 3 species of other taxa. The mean total biomass was 65.42 g/m2, of which crustaceans contributed most; and the mean total abundance was 474 ind./m2, of which polychaetes contributed most. The result of CLUSTER analysis showed that, at the 25% similarity level, the 9 surveyed stations were divided into 3 groups. The Shannon-Wiener diversity index (H′) and abundance and biomass comparison (ABC) curve showed that the sediment environment from partial stations were slightly polluted, while the other stations were relatively clean. The key environmental parameters affecting the characteristics of macrobenthic community and biodiversity of macrofauna in this area were the content of silty sand.
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Received: 31 August 2020
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