This is the first study in the Mediterranean to combine boat and marina sampling data with crew surveys to better understand the role these boats play in spreading alien species. The researchers from the University of Pavia, Italy found that boats traveling to new marinas were likely to be transporting alien species in the biofouling: living growth on submerged areas of the vessel.
Click here for original story, Private boats in the Mediterranean have extremely high potential to spread alien species
Source: Phys.org