What long-term impacts do marine biological invasions have? How quickly can ecosystems recover or stabilize after an invasion? Are there recurring biological invasions? What causes populations of invasive species to increase or decrease?

To answer these questions, I will carry out pioneering research that studies the temporal and spatial dynamics of marine invasive species in different European locations, using techniques to detect environmental DNA and using massive sequencing techniques (metabarcoding and metagenomics). To develop this research, samples of sedimentary sequences from marine coastal areas will be obtained, as well as samples of surrounding seawater.

In order to know the age of the sediments and to be able to reconstruct the temporal dynamics, the sedimentary sequences will be dated. This chronology will make it possible to date the introductions and identify environmental and ecological changes over time.