Abundance and biomass of zooplankton from 1986-1994 collected in front of Constanta city, Black Sea

The Est Constanta 1986-1994 dataset contains zooplankton data collected allong a 5 station transect in front of the city Constanta (44°10'N, 28°41.5'E - EC1; 44°10'N, 28°47'E - EC2; 44°10'N, 28°54'E - EC3; 44°10'N, 29°08'E - EC4; 44°10'N, 29°22'E - EC5). Zooplankton sampling was undertaken at 5 stations where samples were collected using a Juday closing net in the 0-10, 10-25, 25-50m 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.

埃斯滕康斯坦察1986-1994数据集（Est Constanta 1986-1994）包含1986-1994年间，在康斯坦察市前方5个站位断面（transect）采集的浮游动物（zooplankton）数据，各站位信息如下：EC1（44°10'N, 28°41.5'E）、EC2（44°10'N, 28°47'E）、EC3（44°10'N, 28°54'E）、EC4（44°10'N, 29°08'E）、EC5（44°10'N, 29°22'E）。

浮游动物采样于上述5个站位，采用朱迪封闭式拖网（Juday closing net）在0-10m、10-25m、25-50m水层（具体分层将根据实际水团状况调整）采集样品。本数据集涵盖针对中型浮游动物（mesozooplankton）的物种组成与丰度开展分析后的全部样品数据。

采样体积通过拖网网口面积与拖曳绳长的乘积计算得到。类群特异性的中型浮游动物丰度通过显微镜计数获得，总丰度为所有计数个体的总和。轮虫类（Rotifera）、栉水母类（Ctenophora）、夜光藻属（Noctiluca）及饵料生物的总生物量，通过对应物种及发育阶段的湿重参考表进行估算。