Studies on the species composition and community structure of macrofauna in the Bohai Sea,China

Liu Xiaoshou; Fan Ying; Shi Shujie; Hua Er; Zhang Zhinan

doi:10.3969/j.issn.0253-4193.2014.12.005

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Liu Xiaoshou, Fan Ying, Shi Shujie, Hua Er, Zhang Zhinan. Studies on the species composition and community structure of macrofauna in the Bohai Sea,China[J]. Haiyang Xuebao, 2014, 36(12): 53-66. doi: 10.3969/j.issn.0253-4193.2014.12.005

Citation:

Liu Xiaoshou, Fan Ying, Shi Shujie, Hua Er, Zhang Zhinan. Studies on the species composition and community structure of macrofauna in the Bohai Sea,China[J]. Haiyang Xuebao, 2014, 36(12): 53-66. doi: 10.3969/j.issn.0253-4193.2014.12.005

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Studies on the species composition and community structure of macrofauna in the Bohai Sea,China

doi: 10.3969/j.issn.0253-4193.2014.12.005

College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China

Received Date: 2014-02-16
Rev Recd Date: 2014-03-06

Abstract

Abstract

In this paper,the abundance,biomass,community structure of macrofauna and its relationship with environmental factors in the Bohai Sea were studied using the samples collected from 23 stations in August 2008. A total of 300 species were identified,among which the major taxa were polychaetes,crustaceans,mollusks and echinoderms. The average abundance of macrofauna was 1 094.7 ind/m²,and the average biomass was 11.78 g/m². The highest abundance was located in Liaodong Bay,while the lowest was in Bohai Bay. The highest biomass was located in the middle of the Bohai Sea,while the lowest appeared in Bohai Strait. CLUSTER and MDS analysis based on the abundance data showed that six communities groups could be divided,which were closely related to the types of sediment. The sediment types in this area included clayey silt,sand,sandy silt,silt sand and sand-silt-clay. BIOENV analysis showed that the major environmental factors affecting the community macrofaunal structure and distribution were water depth,sediment silt-clay percentage,phaeophorbide and chlorophyll contents. The number of species and average abundance of macrofauna in the area have obviously declined compared with the historical data in 1990s. It is noted that the dominant species showed a miniaturization trend. The traditionally dominant large-sized species,such as heart urchin and bivalves,were replaced by small-sized polychaetes and crustaceans. The present study showed that the Bohai Sea was affected by human activities and suffered various degrees of pollution in recent years,resulting in the changes of macrofauna community structure.
- macrofauna,
- abundance,
- biomass,
- community structure,
- Bohai Sea

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References(41)

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