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

Figure Created 18 Aug 2014 Published 03 Mar 2015 Last modified 29 Jun 2015
This figure shows the relative importance (%) of the main pathways of introduction of non-indigenous species (NIS) across regional seas of Europe in 2014.

European data

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Last upload:
18 Aug 2014
Temporal coverage:
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:

% 

Rights:
EEA standard re-use policy: unless otherwise indicated, re-use of content on the EEA website for commercial or non-commercial purposes is permitted free of charge, provided that the source is acknowledged (http://www.eea.europa.eu/legal/copyright). Copyright holder: European Environment Agency (EEA).
Owners:
European Environment Agency (EEA)
Figure type:
Map

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 %. 

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For references, please go to https://www.eea.europa.eu/data-and-maps/figures/mode-of-introduction-of-nis or scan the QR code.

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