The present compilation is the first attempt to generate a comprehensive list of all macrozoobenthic species recorded at least once in the German regions of the North Sea and Baltic Sea including non-indigenous species and freshwater species which occurred in brackish waters (estuaries, bays, fjords etc.). Based on the data of several research institutes and consultancies, the macrozoobenthic species inventory comprises a total of 1.866 species belonging to 16 phyla including 193 threatened species. The most common groups were: malacostracan crustaceans (21%), Polychaeta (19%), and Gastropoda (12%). Even though the two major marine regions are separated by only 50 km of land, the composition of the respective communities was different. The two seas shared only 36.6% of the recorded species which should have profound and far-reaching consequences for conservation purposes. Considering all macroinvertebrates listed 96 species, or the equivalent of 5.2%, were introduced mainly during the last two centuries. Both seas are heavily affected by human activities and are sensitive to climate change displayed by effects on the faunal compositions. The present checklist is an important step to document these changes scientifically and may act as a base for political and management decisions.

中文翻译：

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在北海和波罗的海的德国水域中的大型动物学物种注释清单

本汇编是首次尝试全面列出在北海和波罗的海的德国地区至少记录一次的所有大型动物物种，包括在咸淡水域（河口，海湾，峡湾中发生的非本地物种和淡水物种）等等。）。根据多家研究机构和咨询机构的数据，大型动物种群物种清单总共包括1.866种，属于16种门，包括193种受威胁物种。最常见的人群是：马拉考斯特拉邦甲壳类动物（21％），Polychaeta（19％）和腹足纲动物（12％）。尽管两个主要的海洋区域仅相距50公里，但各个社区的构成却有所不同。两海共享36条。为保护目的应有6％深远影响的已记录物种的6％。考虑到列出的所有大型无脊椎动物有96种，或相当于5.2％，主要是在最近两个世纪引入的。两种海洋都受到人类活动的严重影响，并且由于对动物组成的影响而对气候变化敏感。本清单是科学记录这些变化的重要步骤，并且可以作为政治和管理决策的基础。