The effect of invasive lionfish on reef fish community structure along the Mesoamerican Barrier Reef

A five-year study along the Belize Barrier Reef found no significant impact of invasive lionfish on reef fish community structure, despite their known predatory behavior. Researchers assessed fish abundance, diversity, and composition across 16 reef sites spanning ~250 km, including during the onset of the invasion. While small-scale studies suggest lionfish reduce prey populations, this large-scale analysis indicates current densities in Belize—likely influenced by natural factors and removal efforts—do not affect broader reef fish communities. The findings imply that additional lionfish removal may not be necessary to mitigate ecological impacts.

Hackerott, Serena. (2014). The effect of invasive lionfish on reef fish community structure along the Mesoamerican Barrier Reef. University of North Carolina at Chapel Hill Graduate School. https://doi.org/10.17615/NA63-1F32