Mesozooplankton abundances at time series station Helgoland Roads, in 2000

The data provided here represents a summary of species and taxonomic groups. Species and groups added together are shown in the parameter comments (see "Further details").Empty...本数据集提供的内容为物种与分类类群（taxonomic groups）的汇总信息。物种与类群的合计统计信息将在参数注释中予以说明（详见"进一步详情"）。空值……