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11.
Distribution of drifting seaweeds in eastern East China Sea 总被引:3,自引:0,他引:3
Teruhisa Komatsu Kenichi Tatsukawa Jean B. Filippi Tatsuyuki Sagawa Daisuke Matsunaga AtsukoMikami Kenichi Ishida Tetsuro Ajisaka Katsuhiko Tanaka Masakazu Aoki Wei-Ding Wang Hui-Fei Liu Shou-Du Zhang Min-Dong Zhou Takashige Sugimoto 《Journal of Marine Systems》2007,67(3-4):245
In offshore waters with relatively low primary production, drifting seaweeds composed of Sargassum species form an identical ecosystem such as an oasis in desert. Commercially important pelagic fishes such as jack mackerel (Trachurus japonicus) and yellow tail (Seriola quinqueradiata) spawn in East China Sea pass their juvenile period accompanying drifting seaweeds. Therefore drifting seaweeds are very important not only in offshore ecosystem but also fishery resources. However the distribution of drifting seaweeds in East China Sea has scarcely known. Then we conducted two research cruises of R/V Hakuho–Maru in May 2002 and in March 2004. During the cruises, drifting seaweeds were visually observed from the bridge and sampled with a towing net. The observation revealed that the drifting seaweeds were distributed along the front between the Kuroshio Current and coastal waters and mainly composed of one seaweed species, Sargassum horneri (Turner) C. Agardh from spring to early summer. There are no reports on geographical distribution of this species in the coasts south of southern Kyushu Island in Japan. Kuroshio Current flows northeastward there. Buoys with GPS attached to drifting seaweeds released off Zhejiang Province, China, in March 2005 to track their transport. Their positions monitored by ORBCOM satellite showed that they were transported to the area in East China Sea, where the drifting seaweeds were observed during the cruises, in 2 months. These facts suggest that S. horneri detached from Chinese coast in March or months earlier than March could be transported to fringe area of continental shelf and waters influenced by Kuroshio Current from March to May. Therefore the Sargassum forests, especially S. horneri, along the Chinese coast play a very important role in the ecosystem of the East China Sea as a source of drifting seaweeds. 相似文献
12.
Mazen Abualtayef Masamitsu Kuroiwa Kentarou Tanaka Yuhei Matsubara Junichi Nakahira 《Journal of Marine Science and Technology》2008,13(1):40-49
This article describes the development of a three-dimensional (3D) multilayer hydrostatic model of tidal motions in the Ariake
Sea and its application. The governing equations were derived from 3D Navier-Stokes equations and were solved using the fractional
step method, which combines the finite difference method in the horizontal plane and the finite element method in the vertical
plane. This study introduced a 3D, time-dependent, hydrostatic, tidal current model that can compute wetting and drying in
tidal flats due to tidal motion. The 3D model was first tested against analytical solutions for three standard cases in a
rectangular basin in order to investigate the performance of the model. Then, the model was applied to Saigo fishery port
and the Ariake Sea. For standard cases, the numerical solutions were almost identical to the analytical solutions. Finally,
the model results for Saigo port and the Ariake Sea show good agreement with the field observations. 相似文献
13.
EXPRESSION OF PCNA,P53,KI-67,EGFR AND ONCOGEN CerbB-2 IN HUMAN SUPERFICIAL SQUAMOUS CELL CARCINOMA OF ESOPHAGUS 总被引:1,自引:0,他引:1
张军 《西安交通大学学报(英文版)》1994,(2)
EXPRESSIONOFPCNA,P53,KI-67,EGFRANDONCOGENCerbB-2INHUMANSUPERFICIALSQUAMOUSCELLCARCINOMAOFESOPHAGUSZhangJun(张军)HiroyasuMakuuch... 相似文献
14.