During the 2013 season the E/V Nautilus ventured to Puerto Rico, with some high hopes for exploration. As expected, we found an abundant population of lionfish: an invasive and problematic species in the Caribbean Sea and the Gulf of Mexico. Check out this awesome footage of lionfish in Mona Passage off the coast of Desecheo Island, and see how they interact with some of the indigenous species.

Source video copyright Ocean Exploration Trust.