ELNAIS

Hellenic network on aquatic invasive species

ELNAIS is a dynamic online information platform aiming to collect and report spatial information on Aquatic Alien Species in Greek waters. It covers freshwater, marine and estuarine waters, including not only established aliens but also casual records and cryptogenic species.

How to cite ELNAIS?

Zenetos, A., Arianoutsou, M., Bazos, I., Balopoulou, S., Corsini-Foka, M., … & Kytinou, E. (2015). ELNAIS: A collaborative network on aquatic alien species in Hellas (Greece). Management of Biological Invasions, 6(2), 185-196. http://dx.doi.org/10.3391/mbi.2015.6.2.09

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POSTGRADUATE STUDIES

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PROJECTS

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ELNAIS SPECIES

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PUBLICATIONS

Vagenas et al., 2023 (In Review): Spatial distribution of the range expansion for the dominant regions of introductions (red) by non-indigenous fishes per analyzed momentum (tx) in the Mediterranean Sea (blue). The white circle denotes the spatial centroid of the range polygons for each successive momentum.

Vagenas et al., 2023 (In Review): Spatial representation of the progressive movement (momenta; black circles: tx) of the dominant regions of introductions in the Mediterranean Sea (blue). The progressive trajectory (dotted line) was carried out based on the alignment of the spatial centroids for each successive momentum. The trajectory denotes the connection between the inferred entrance (Suez Canal; Entry Point) to the tenth (t10) successive momentum, while the Mediterranean has been classified in the four MSFD regions (EMED; CMED; ADRIA; WMED).

Vagenas et al., 2023 (In Review): Spatial representation of the five-year average centroids (large circles) of three emblematic cases of invasive alien species in the Mediterranean Sea (P. miles -A-; L. sceleratus -B-; P. forsskali -C-). The black line demonstrates the route from the Entry Point (Suez Canal) to the endmost five-year moving average. The transparent layer of centroids (small circles) exhibits the annual average centroids of each species records.

Karachle, P. K., Oikonomou, A., Pantazi, M., Stergiou, K. I., & Zenetos, A. (2022). Can Biological Traits Serve as Predictors for Fishes’ Introductions, Establishment, and Interactions? The Mediterranean Sea as a Case Study. In Biology (Vol. 11, Issue 11, p. 1625). MDPI AG. https://doi.org/10.3390/biology11111625

What are Alien species?

Alien species (synonyms: non-indigenous, exotic, non-native) are species, subspecies or lower taxa, which are found outside the areas of their natural dispersal potential. Their occurrence in the given region is due to intentional or unintentional introduction resulting from human activities. EU member States have obligations and commitments under both the European and global frameworks in respect to non-indigenous species [Marine Strategy Framework Directive (MSFD); EU Biodiversity Strategy].