Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Marine Meiobenthic Faunal Communities of the Sediments near Dokdo in the East Sen, Korea

독도 주변 해역에 서식하는 중형저서생물

  • 김동성 (한국해양연구원 생태환경연구본부) ;
  • 민원기 (한국해양연구원 생태환경연구본부) ;
  • 김웅서 (한국해양연구원 해양자원연구본부)
  • Published : 2002.12.31
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Abstract

Meiobenthic community structure near Dokdo was investigated during two survey periods of June, 1999 and October 2000. Meiobenthos were separated from the sediment core samples collected from eight stations. A total of 19 meiobenthic animal groups were identified from those core samples. The most abundant meiobenthic animals belonged to Phylum Nematoda in both seasons and all stations. Sarcomastigophorans, nauplius of crustaceans, and benthic harpactiocoids were the next abundant meiobenthos. Vertical distribution of meiobenthic animals showed the highest individual numbers in the surface sediment layers of 0-1cm depth with a steep decreasing trend with depth for the three sampling stations (A0, A9', A19) located in the continental slope. Horizontal distribution of meiobenthic animals for the study area near Dokdo showed lower density at the sampling stations near Dokdo and the lowest density of meiobenthos in A19 (depth-2261 m). For size distribution, analysis showed that animals which fit onto the mesh size of 0.125mm were abundant. This study suggested that the continental shelf near Dokdo have a more unstable environment fo meiobenthos than the continental slope.

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References

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