Main pathways of introduction of marine non-indigenous species in regional seas of Europe

This figure shows the relative importance (%) of the main pathways of introduction of non-indigenous species (NIS) across regional seas of Europe in 2014.

Loading

Methodology

Data retrieved from HCMR/EEA ALIEN data base. Percentages were calculated based on the total number of NIS per regional sea for which a pathway could be attributed.

Units

%

Additional information

Main pathways of introduction are shipping, corridors (i.e. marine and inland), aquaculture, aquarium trade and other. In many cases, it is impossible to identify the introduction pathway. Where more than one pathway of introduction can be attributed, the analysis has considered both modes of introduction. Thus the resulting percentage of introductions per pathway amounts to more than 100 %.

Main pathways of introduction of marine non-indigenous species in regional seas of Europe

Related content

References and footnotes