All counts were made between 1969 to 1990 of the planktonic foraminiferal population larger than 149 microns.The majority counts are larger than 300 individuals;some range as low as 100.

• 所有的数据测量都是在1969年至1990年进行的，浮游的有孔虫大多长于149微米，主要的计算都多于300个个体，有一些在100个个体左右。