Phytoplankton abundance in surface water in October 1997, Pisco, Peru
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N=none, R=rare, F=few, C=common, A=abundant
本数据集标注采用如下频次等级对应关系:N=无(none),R=罕见(rare),F=少量(few),C=常见(common),A=充足(abundant)

N=none, R=rare, F=few, C=common, A=abundant
本数据集标注采用如下频次等级对应关系:N=无(none),R=罕见(rare),F=少量(few),C=常见(common),A=充足(abundant)