GeoEcoMar Macrozoobenthos L36-109A_2021 (PN19200101 National Project)

The dataset contains macrozoobenthos data collected during the MN219 Cruise from 18 stations and observations on benthic habitats from 35 stations located in the Romanian Black Sea area, in 4-16 June 2021, in the framework PN19200101 Project. The main goal of the cruise was to develop the national thematic maps (geological/geophysical/biological) at a scale of 1:50,000 of the Romanian continental shelf of the Black Sea. From each station, one replicate were collected with the with Van-Veen grab (the grasping area - 0.125 m2). The sediment was preserved in buffered formalin 4% , then sieved through a 1 mm and 0.5 mm mesh sieve and subsequently stored in 70% ethanol. The database comprises taxonomic and quantitative data (density and wet weight biomass per square meter) for 83 macrozoobenthic species and 2 supraspecific groups.本数据集包含2021年6月4日至16日在罗马尼亚黑海海域开展的MN219航次中采集的样品数据，相关工作依托PN19200101项目实施：涵盖18个站位的大型底栖生物（macrozoobenthos）数据，以及35个站位的底栖生境观测数据。本次航次的核心目标为编制罗马尼亚黑海大陆架1:5万比例尺的国家专题地图，涵盖地质、地球物理与生物学三类专题。各站位均使用Van-Veen采泥器（Van-Veen grab，抓捕面积0.125 m²）采集1份重复样品；所得沉积物样品先以4%缓冲福尔马林固定，随后依次通过1 mm与0.5 mm孔径的筛网筛分，最终保存于70%乙醇溶液中。本数据库收录了83个大型底栖生物物种及2个超种类群的分类学与定量数据，具体包括单位面积密度与湿重生物量两项指标。