台湾海峡中北部表层沉积物中介形类拟生态的研究

A STUDY ON THE PARAECOLOGY OF DEPOSITIONAL OSTRACODA IN THE NORTHERN AND CENTRAL AREAS OF TAIWAN STRAIT

台湾海峡中北部介形类共69属115种,受复杂的海底地形及海流、水团等环境因素影响,分为4个分布区:沿岸低值区,西南部高富集区,东北部密集区及中部过渡区。介形类属种以东海、南海组成的分子较多,显示出海流因素起主要作用。

Sixty samples used for Ostracoda analysing were collccled by Fujian Institute of O anography during the period of May 1983 to August 1984 from the northern and een al areas of Taiwan Strait between 24??20' - 26??00' N, 118??45' - 121??00' E. in a depth range of 18 84m. A total of 11 5 species belonging to 69 genera have been identified and stra oda abundance varied in different stations. The distribution of Ostracoda tests is cootroiled by the submarine geomorphotogy. currents, water masses and other environ men al ors . and lour distributional areas were recognized in terms of Ostracoda abun the sedimems: are in the area along the coast, more in the southwestern area, in the central, and abundant in the northeastern area. As Taiwan Strait is geograph y ansitional area between East China Sea and South China Sea . most Ostra- distnbuted here are also found in the two areas. It is believed that the cur from those two seas play an important factor here.