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Regional baseline

1,006 non-indigenous species validated for the Mediterranean

Expert-validated national and subregional inventories, with records to December 2020 — the agreed baseline for IMAP and the 2023 Med QSR.

Israel · Türkiye · Lebanon · Italy
Lessepsian spread west & north

Galanidi et al. (2023), Diversity 15(9), 962 — doi.org/10.3390/d15090962

1,006 Validated NIS

~45Data deficient

Dec 2020Cut-off

Med QSR 2023 · EO2 / CI6

Good Environmental Status has not been achieved in any subregion

GES not achieved

1,008 validated NIS to end-2020, of which 742 are established. Corridors and shipping remain the dominant pathways.

UNEP/MAP, 2023 Mediterranean Quality Status Report — medqsr2023.info-rac.org

E MED788
W MED338
C MED304
Adriatic211

74%Established

Barcelona Convention

Action Plan on Species Introductions and Invasive Species

A regional strategic framework under the SPA/BD Protocol — first adopted in 2005, revised in 2017 and updated at COP23 (2023).

Shipping
Corridors
Aquaculture
Live trade

Decision IG.26/5, Annex IV — Barcelona Convention

Minimise introduction & spread Pathway management, legal frameworks, early warning

Reduce impacts Risk assessment, prioritisation, rapid response

The platform

MAMIAS — Mediterranean Marine Invasive Alien Species database

The regional information system that turns validated NIS inventories into usable evidence for policy.

Inventories
Occurrences
WoRMS taxonomy
Literature

SPA/RAC — Specially Protected Areas Regional Activity Centre

22Countries

4Subregions

IMAPReporting

MAMIAS at a glance

Validated non-indigenous species, as on the Mediterranean dashboard

1,013 reported NIS in the Mediterranean 737 established 215 casual 143 new records in 2014–2023

Reported species by EcAp sub-region

Establishment in the Mediterranean

Established 737 73% Casual 215 21% Unknown 60 6% Not assessed 1 0%

Top phyla

Mollusca 222 Chordata 204 Arthropoda 188 Annelida 95 Rhodophyta 80

Most recent arrivals

Get Started Today

Add observation of Marine Non-Indigenous Species

Join hundreds of researchers and institutions using MAMIAS to monitor, report, and analyse Non-Indigenous Species data — powered by science, built for collaboration.

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mamias.org/mamias

1 200+

Species

Countries

300+

Researchers