Summary of the niche of 119 species of phytoplankton from the CPR data using ...

21 columns of the mean of the niche (mu) and upper and lower 95% confidence intervals for the mean for each of 7 environmental variables (SST, salinity, nitrate, phosphate,...针对7项环境变量（海表温度（Sea Surface Temperature, SST）、盐度、硝酸盐、磷酸盐等），分别计算其生态位均值（μ，即mu）以及该均值的95%置信上下限，最终得到21列相关数据。