Invasive Alien marine Species (IAS) are considered as a major threat to the local ecosystems, the native biodiversity, the local economy and the human health and they are described as one of the main drivers of biodiversity loss globally. Several studies suggest that this issue costs hundreds of billions of dollars each year to the local economies. Nowadays, both EU and UN include IAS among the biggest threats to the marine ecosystems, with several legislations aiming at tackling the adverse effects and their expansion. The Mediterranean Sea is currently facing a severe invasion with more than 1000 IAS already confirmed to be present in the basin (>5% of the total marine biodiversity). Greece, is one of the most impacted countries, with more than 300 reported IAS. Although continuous monitoring is of great importance such efforts that involve scientists and research vessels, are very expensive and insufficient to ensure good spatial coverage, especially in a country like Greece with approximately 17,000 km of (60% of the Mediterranean coastline). Thus the inventory of IAS in Greece, as well as in other countries, is considered ambiguous, potentially jeopardizing the efforts for tackling the issue.

Is it Alien to you…. Share it!!!

You can help us collect more information on the distribution and the expansion of alien species in the Greek, Cypriot, Albanian and Turkish Seas, as well as in all Eastern Mediterranean by participating in our citizen science project.

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uSea app

uSea is aims to become the first crowdsourcing Mobile App for tracking IAS in the Greek Seas and potentially in the contiguous seas based on reports provided by non-experts that spend significant amount of their time in the sea (e.g. divers, fishermen, etc).

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