Figures & data
Fig. 1. Cumulative number of non-indigenous species (NIS) recorded in the Baltic Sea, Western European Margin and Mediterranean Sea.
Fig. 2. Number of non-indigenous species (NIS) recorded by country in the Baltic Sea (BAL), Western European Margin (WEM) and Mediterranean Sea (MED).
Fig. 3. Likely vectors of introduction of non-indigenous species (NIS) in the Baltic Sea (BAL: upper panel), Western European Margin (WEM: intermediate panel) and Mediterranean Sea (MED: lower panel). (a) All NIS; (b) widespread NIS; (c) post-1990 widespread NIS. C = Canals; C, V = Canals, Vessels; V = Vessels, Cul, V = Culture, Vessels; Cul = Culture; Ov = Other vectors.
Fig. 4. Cumulative number of non-indigenous species (NIS) by likely vector and country: (a) Estonia (Baltic Sea), (b) Netherlands (Western European Margin), (c) France (Western European Margin), (d) France (Western Mediterranean Sea), (e) Israel (Eastern Mediterranean Sea).
Fig. 5. Number of introduction events in the Baltic Sea, Western European Margin and Mediterranean Sea showing the proportion of records of widespread non-indigenous species (NIS).
Table 1. List of widespread non-indigenous species (NIS) in European Seas. The second column lists NIS recorded from 10 or more countries; the third column lists NIS first recorded after 1990 and reported from five or more countries. Columns 4 to 6, the number of countries in each region (BAL = Baltic, WEM = Western European Margin, MED = Mediterranean) where the NIS was recorded. In the last column the likely vectors of introduction are given; C = Canals; Cul = Culture, V = Vessels.
Table 2. Taxa composition of all non-indigenous species (NIS), widespread NIS and post-1990 widespread NIS in European Seas.