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Seasonal dynamics of meiofaunal distribution in the Dagu River Estuary, Jiaozhou Bay, China

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Abstract

Sediment samples were collected in the intertidal zone of the Dagu River Estuary, Jiaozhou Bay, China in April, July and October 2010 and February 2011 for examining seasonal dynamics of meiofaunal distribution and their relationship with environmental variables. A total of ten meiofaunal taxa were identified, including free-living marine nematodes, benthic copepods, polychaetes, oligochaetes, bivalves, ostracods, cnidarians, turbellarians, tardigrades and other animals. Free-living marine nematodes were the most dominant group in both abundance and biomass. The abundances of marine nematodes were higher in winter and spring than those in summer and autumn. Most of the meiofauna distributed in the 0–2 cm sediment layer. The abundance of meiofauna in hightidal zone was lower than those in low-tidal and mid-tidal zones. Results of correlation analysis showed that Chlorophyll a was the most important factor to influence the seasonal dynamics of the abundance, biomass of meiofauna and abundances of nematodes and copepods. CLUSTER analysis divided the meiofaunal assemblages into three groups and BIOENV results indicated that salinity, concentration of organic matter, sediment sorting coefficient and sediment median diameter were the main environmental factors influencing the meiofaunal assemblages.

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Acknowledgements

Great thanks are given to colleagues and faculty members in the College of Marine Life Sciences, Ocean University of China who have provided great assistants in the sampling and laboratory processing.

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Authors and Affiliations

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

    Shengle Yin, Peng Tan, Chao Yuan, Jin Hu & Xiaoshou Liu

  2. Graduate School of Frontier Sciences/Atmosphere and Ocean Research Institute, The University of Tokyo, Chiba, 277-8564, Japan

    Shengle Yin

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  1. Shengle Yin
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  2. Peng Tan
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  3. Chao Yuan
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  4. Jin Hu
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  5. Xiaoshou Liu
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Correspondence to Xiaoshou Liu.

Additional information

Foundation item: The National Natural Science Foundation of China under contract No. 41576135; the Student Research Development Program of Ocean University of China (OUC-SRDP) under contract No. 101201051.

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Yin, S., Tan, P., Yuan, C. et al. Seasonal dynamics of meiofaunal distribution in the Dagu River Estuary, Jiaozhou Bay, China. Acta Oceanol. Sin. 36, 79–86 (2017). https://doi.org/10.1007/s13131-017-1093-0

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  • DOI: https://doi.org/10.1007/s13131-017-1093-0

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