section_path: Environmental issues/Invasive species/Arrival of new tropical Atlantic species
section_name: Arrival of new tropical Atlantic species
paragraph_text: Arrival of new tropical Atlantic species
  
  In recent decades, the arrival of exotic species from the tropical Atlantic has become noticeable. In many cases this reflects an expansion – favoured by a warming trend of sub-tropical Atlantic waters, and also by a fast-growing maritime traffic – of the natural range of species that now enter the Mediterranean through the Strait of Gibraltar. While not as intense as Lessepsian migration, the process is of importance and is therefore receiving increased levels of scientific coverage.