Total Hydrozoa abundance in the Southern Bight of the North Sea between 1971 and 1972

Inventory of Hydrozoa species for 51 stations in the Southern North Sea between January 1971 and July 1972.The data are digitized from technical reports in the frame of the 4DEMON project.1971年1月至1972年7月期间，北海南部海域51个站位的水螅虫纲（Hydrozoa）物种名录。本数据集的数据源自4DEMON项目框架内的技术报告并完成数字化处理。