Influences of physical processes on the ecosystem in Jiaozhou Bay: A coupled physical and biological model experiment | |
Chen, CS; Ji, RB; Zheng, LY; Zhu, MY; Rawson, M | |
刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
![]() |
1999-12-15 | |
卷号 | 104期号:C12页码:29925-29949 |
ISSN号 | 0148-0227 |
英文摘要 | In this paper we have used a three-dimensional coupled physical and biological model to examine the marine ecosystem of Jiaozhou Bay. Physical processes included (1) the M-2 tide, (2) river discharges, and (3) winds. The biological model described a simple, phosphorous-based, lower trophic food web system. The model results showed that tidal mixing had a direct impact on temporal and spatial distributions of nutrients and phytoplankton as well as on shellfish aquaculture. Nutrients and phytoplankton were well mixed vertically by tidal motion. Their concentrations were highest around northwestern and northern regions of the bay near river sources and decreased with water depth from the inner bay to the outer bay. A phytoplankton bloom can occur around the northwestern coast due to the "accumulation" of nutrients under southeasterly wind conditions. The flux analysis suggests that in summer the nutrients in Jiaozhou Bay was directly supplied and maintained by physical processes, but the temporal variation of phytoplankton was controlled dominantly by biological processes associated with nutrient uptake, grazing by zooplankton, and consumption by shellfish. Shellfish aquaculture can modify the bay-scale balance of the ecosystem in Jiaozhou Bay, The loss of phytoplankton in shellfish aquaculture sites tended to be compensated by advection and diffusion from the surrounding waters. A large consumption of phytoplankton by shellfish can cause a net flux of phytoplankton from the Yellow Sea to Jiaozhou Bay, although there was a net nutrient flux flowing out of the bay. The physical mechanism for the water exchange between Jiaozhou Bay and the Yellow Sea was controlled mainly by a chaotic process associated with nonlinear interactions between oscillating tidal currents and double residual eddies. |
WOS研究方向 | Oceanography |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000084399600024 |
内容类型 | 期刊论文 |
源URL | [http://ir.fio.com.cn/handle/2SI8HI0U/4905] ![]() |
专题 | 自然资源部第一海洋研究所 |
作者单位 | 1.Univ Georgia, Sch Marine Programs, Athens, GA 30602 USA; 2.Statae Ocean Adm, Inst Oceanog 1, Qingdao 266003, Peoples R China; 3.Univ Georgia, Dept Marine Sci, Athens, GA 30602 USA |
推荐引用方式 GB/T 7714 | Chen, CS,Ji, RB,Zheng, LY,et al. Influences of physical processes on the ecosystem in Jiaozhou Bay: A coupled physical and biological model experiment[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,1999,104(C12):29925-29949. |
APA | Chen, CS,Ji, RB,Zheng, LY,Zhu, MY,&Rawson, M.(1999).Influences of physical processes on the ecosystem in Jiaozhou Bay: A coupled physical and biological model experiment.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,104(C12),29925-29949. |
MLA | Chen, CS,et al."Influences of physical processes on the ecosystem in Jiaozhou Bay: A coupled physical and biological model experiment".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 104.C12(1999):29925-29949. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论