I am a Zoologist and my research activity is carried out mainly in the field of population genetics and molecular taxonomy of marine invertebrates and fish. The main lines of research include: -Biodiversity of Proseriata (Platyhelminthes) at the level of populations and species. -Genetic surveys with conservational purposes of populations of marine invertebrates and fish. -Phylogeography, phylogeny and molecular taxonomy of marine invertebrates and fish. I am one of the leading authorities in the study of the genetic variability of the endangered limpet Patella ferruginea. I am also the leading authority on molecular phylogeny and taxonomy of Proseriata, as my studies have contributed to clarify the phylogenetical relationships of Proseriata and to describe new Proseriata species.