摘要
1987年12月—1988年11月对闽南-台湾浅滩上升流区调查结果表明,该海区的介形虫基本属暖水性种类,其中以终生营浮游生活的种类占优势(74.5％),后圆真浮萤Euconchoeciamaimai和针刺真浮萤Euconchoecia aculeata为优势种。外海种和近岸种一般都分别在台湾浅滩南部和福建沿岸水城形成密集区,并向相反方向扩散。夏季(6月)的垂直分布表明,近岸密集区的介形虫载浮于涌升水的上层,远岸的种类和数量分布与次表层水爬坡涌升现象颇为一致。秩季(11月)的垂直分布则反映出沿岸偏低温、低盐水向外扩展的趋势。宽假浮萤Pseudoconchoecia concentrica和短形小浮萤Microconchoecia curta等的出现,对夏季近岸上升流的存在有一定的佐证作用。
The present paper is based on samples of planktonic Ostracod and field hydrological data collected from the Upwelling Area of Minnan-Taiwan Bank(21°00′-24°00′N, 116°00′-119°00′E) during multi-disciplinary investigations from December 1987 to November 1988. Ostracods are almost warm species in the Upwelling Area of Minnan-Taiwan Bank, among them there are more holoplanktonic species than tychoplanktonic species.The dominant species are Euconchoecia tnaimai and E. aculeata. Oceanic species and neritic species aggregate in the southern waters of Taiwan Bank and coastal waters respectively,at the same time extending from each other in the opposite directions. In the summer(June), the vertical distribution shows that coastal aggregation area is located in. the uppsr layer on the Upwelling, while the distribution of oceanic species and quantity are fairly similar to that of the upgrade subsurface water Upwelling. In the autumn (November), the vertical distribution shows that coastal water extends forward. Pseudoconchoecia concentrica and Microconchoecia curta may serve as evidence of the coastal Upwelling in Minnan-Taiwan Bank in summer.
出处
《热带海洋》
CSCD
1991年第4期67-73,共7页
关键词
介形虫
生态学
上升流
福建
台湾
Planktonic Ostracod, ecology, upwelling, Minnan-Taiwan Bank, Taiwan Strait
