Non-indigenous species in the North and Baltic Seas and the Great Lakes-St. Lawrence River region

List of non-indigenous species (NIS) established in the Great Lakes-St. Lawrence River region and the North and Baltic Seas region, their geographic origin, and taxonomic assignment. Asterisks mark the NIS that occur in both the North and Baltic Seas and the Great Lakes-St. Lawrence River regions. GL, SL, NW, NE, SW and SE denote the Great Lakes, St. Lawrence River, north-west, north-east, south-west, and south-east, respectively. Eurasia represents inland freshwaters except Yangtze River, Indo-Pacific represents Indian Ocean and the archipelago of Indonesia, Malaysia, and Pilipinas, North America (N America) represents inland freshwaters except the Laurentian Great Lakes, St. Lawrence and Mississippi Rivers, while Australia, New Zealand, Africa and South America (S America) cover all inland freshwaters in these areas.本数据集收录了五大湖-圣劳伦斯河区域与北海、波罗的海区域已成功定殖的非本土外来物种（non-indigenous species, NIS），及其地理起源与分类学归属信息。带星号标记的NIS代表同时分布于北海-波罗的海区域与五大湖-圣劳伦斯河区域的物种。 GL、SL、NW、NE、SW及SE分别指代五大湖、圣劳伦斯河、西北、东北、西南与东南区域。 欧亚大陆指代除长江流域之外的内陆淡水水域；印度-太平洋区域涵盖印度洋以及印度尼西亚、马来西亚与菲律宾群岛；北美（N America）指代除圣劳伦斯五大湖、圣劳伦斯河与密西西比河之外的内陆淡水水域；澳大利亚、新西兰、非洲及南美（S America）则覆盖上述区域内全部内陆淡水水域。