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북동 태평양 심해저에 서식하는 중형저서동물 군집의 위도별 분포 특성
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  • 북동 태평양 심해저에 서식하는 중형저서동물 군집의 위도별 분포 특성
저자명
민원기,김동성,김웅서,Min. Won-Gi,Kim. Dong-Sung,Kim. Woong-Seo
간행물명
Ocean and polar research
권/호정보
2004년|26권 2호|pp.255-263 (9 pages)
발행정보
한국해양연구원
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

This study was conducted to investigate the community structure and distributional pattern of meiobenthos in the deep-sea bottom of the Clarion-Clipperton Fracture Zone of the northeastern Pacific during July 2003. The samples were collected using the multiple corer at 13 stations along the transects fiom $5^{circ}N;to;17^{circ}N$. The most abundant meiobenthos was nematodes and followed by sarcomastigophorans; these two taxa comprised more than 70% of the total abundance at all stations. For size distribution analyses showed that animals which fit into the sieve mesh size of 0.063mm were abundant. The maximum density of meiobenthos was $147inds./10cm^2$ at station located in $7^{circ}N$, and the minimum density was $6 inds./10cm^2$ at station located in $14^{circ}N$. More than 60% of meiobenthos were distributed at surface sediment layer within 1.0cm, and the peak abundance was found at $0{sim}0.25cm$ layer. The latitudinal distribution pattern of meiobenthos in the study area seemed to be related with the primary productivity of the surface water that is also connected to the water circulation pattern of the Pacific Ocean near the Equator, diverging at latitude of $8^{circ}N$ and conversing at $5^{circ}N$.