Abundance and biomass of mesozooplankton collected from 1987-1991 allong the romanian littoral

The Longitudinale 1987-1991dataset contains zooplankton data collected from May to October 1987-1991 in 14 station allong 2 transect paralel to the romanian littoral. Zooplankton sampling was undertaken at 14 stations where samples were collected using a Juday closing net in the 0-10, 10-20, 20-30 and 30-40 layer (depending also on the water masses). The dataset includes samples analysed for mesozooplankton species composition and abundance.
Sampling volume was estimated by multiplying the mouth area with the wire length. Taxon-specific mesozooplankton abundance was count under microscope. Total abundance is the sum of the counted individuals. Total biomass Fodder, Rotifera , Ctenophora and Noctiluca was estimated using a tabel with wet weight for each species an stage.

Longitudinale 1987-1991数据集收录了1987年至1991年5月至10月期间，沿与罗马尼亚沿岸平行的2条断面布设的14个站位采集的浮游动物（zooplankton）数据。本次研究在14个站位开展浮游动物采样，使用Juday关闭式网（Juday closing net）在0-10 m、10-20 m、20-30 m及30-40 m水层采集样品（采样水层也会根据水团状况进行调整）。该数据集包含针对中型浮游动物（mesozooplankton）的物种组成与丰度进行分析的样品相关信息。
采样体积通过网口面积与纲绳长度的乘积进行估算。类群特异性的中型浮游动物丰度通过显微镜计数得到。总丰度为所有计数个体的总和。轮虫动物门（Rotifera）、栉水母动物门（Ctenophora）及夜光藻属（Noctiluca）的总生物量通过各物种与发育阶段的湿重参考表进行估算。