台湾海峡中、北部上升流区浮游有孔虫的生态研究

ECOLOGY OF PLANKTONIC FORAMINIFERA IN UPWELLING REGIONS IN THE CENTRAL AND NORTHERN PART OF TAIWAN STRAIT

分析１９８７—１９８８年在台湾海峡中、北部用浮游生物网采集的水层中的浮游有孔虫标本，研究调查海区浮游有孔虫的生态分布特征及其与海水温度和盐度的关系。结果表明：该海区浮游有孔虫计有１６种，以泡抱球虫Ｇｌｏｂｉｇｅｒｉｎａｂｕｌｌｏｉｄｅｓ为主要优势种类，其次是袋拟抱球虫Ｇｌｏｂｉｇｅｒｉｎｏｉｄｅｓｓａｃｃｕｌｉｆｅｒ和红拟抱球虫Ｇ．ｒｕｂｅｒ。在夏季的７月和８月（特别是７月），浮游有孔虫密集在福建中部沿岸的南日岛至闽江口外海海域一带沿岸水域，其中９０％以上的个体由泡抱球虫组成。此现象推测与夏季出现在福建沿岸的上升流活动有关。

ighty three vertical tow net samples of plankton were collected in the central and northern part of Taiwan Strait in July and August,1987 and May and July,1988.A total of 16 spedes of living planktonic foraminifera were found,in which G. bulloides is the most dominant species and the next two are G.sacculifer and G.ruber.In summer (Jul.snd Aug.,especially in Jul.),living planktonic foraminifera of which G.bulloides amounted to 94. 8% were highly concentrated in Fujian coastal sea from Nanri Island to off Minjiang Mouth.The great concentration of G. bulloides may be related to the upwelling occurred in the regions.