Abundance and biomass of zooplankton collected in front of the Danube Delta in May and September 1979

The Gurile Dunarii 1979 dataset contains zooplankton data collected in May and September 1979 in 13 station allong 3 transect in front of the Danube Delta (45°05' - 44°45'N, 30°02'- 29°27'E). Zooplankton sampling was undertaken at 13 stations where samples were collected using a Juday closing net in the 0-10, 10-20, 20-30, 30-40 and 40-50m 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.

古尔莱杜纳里1979数据集（Gurile Dunarii 1979）收录了1979年5月与9月，在多瑙河三角洲前方3条断面的13个采样站位采集的浮游动物数据，采样区域坐标为45°05′—44°45′N，30°02′—29°27′E。本次研究在13个站位开展浮游动物采样，使用Juday封闭网（Juday closing net）分别在0-10米、10-20米、20-30米、30-40米及40-50米水层采集样本，采样分层亦会根据实际水团类型调整。本数据集包含经分析的中型浮游动物（mesozooplankton）物种组成与丰度相关样本数据。采样体积通过网口面积与网丝长度的乘积估算得到。在显微镜下计数各分类类群的中型浮游动物丰度，总丰度为所有计数个体的总和。轮虫类（Rotifera）、栉水母动物门（Ctenophora）、夜光藻属（Noctiluca）及Fodder类群的总生物量，通过各物种及发育阶段的湿重对照表进行估算。