Indicator Assessment
Trends in marine non-indigenous species
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Available data shows that the seas around Europe currently harbor 1 416 non-indigenous species (NIS), almost 81% (1 143) of which have been introduced after 1950. These consist mostly of invertebrates (approx. 63%).
The rate of new introductions of NIS is continually increasing with 323 new species recorded since 2000 at pan-European level.
An increase in NIS introductions is observed for all regional seas. The most affected seas are in the Mediterranean, in particular in the Aegean-Levantine Sea. In this region over 160 new species have been recorded from 2000 to 2010.
Cumulative number of marine non-indigenous species
- Chart
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Data sources:
- Rate of introduction of NIS in European Seas - Internal database provided by Hellenic Centre for Marine Research (HCMR)
- Table
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Data sources:
- Rate of introduction of NIS in European Seas - Internal database provided by Hellenic Centre for Marine Research (HCMR)
Rate of introduction of marine non-indigenous species
- Chart
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Table
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
Cumulative number of non-indigenous species in regional seas around Europe
- Dashboard
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Chart – Baltic Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Table – Baltic Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Chart – Greater North Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Table – Greater North Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Chart – Celtic Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Table – Celtic Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Chart – Bay of Biscay and Iberian Coast
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Table – Bay of Biscay and Iberian Coast
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Chart – Western Mediterranean Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Table – Western Mediterranean Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Chart – Adriatic Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Table – Adriatic Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Chart – Ionian Sea and the Central Mediterranean Sea
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Data sources:
- Rate of introduction of NIS in European Seas provided by Hellenic Centre for Marine Research (HCMR)
- Table – Ionian Sea and the Central Mediterranean Sea
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