Alien species in our seas

The biodiversity of the Mediterranean Sea is constantly evolving, colonized by range-expanding species that arrive through natural corridors, such as the Strait of Gibraltar, and by non-indigenous species or alien species that are introduced by anthropic activities or arrive through artificial corridors such as the Suez passage; some of these species can also be dangerous to human health as they are toxic for consumption or poisonous on contact.

In order to provide support to sea users for the recognition of new species potentially observable and fishable in our seas, including those dangerous to human health, a new booklet has been created, an updated version of the 2021 edition.

Any reports that will be sent to researchers will also contribute to monitoring the distribution and spread of these species in our waters.