- David Chagaris | University of Florida, IFAS Nature Coast Biological Station, Gainesville, FL
- Samantha Binion-Rock and Alex Bogdano | North Carolina State University, Morehead City, NC
- Kristen Dahl | University of Florida, Gainesville, FL
- Jennifer Granneman | University of South Florida, St. Petersburg, FL
- Holden Harris | University of Florida, Gainesville, FL
- John Mohan | Texas A&M University, Galveston, TX
- Merrill B. Rudd | University of Washington, Seattle, WA
- Mary Kate Swenarton | U.S. Fish and Wildlife Service, Lodi, CA
- Rob Ahrens and William F. Patterson III | University of Florida, Gainesville, FL
- James A. Morris, Jr. | NOAA, Beaufort, NC
- Micheal Allen | University of Florida, Gainesville, FL
The findings and conclusions in this article are those of the authors and do not necessarily represent the views of the U.S. Fish and Wildlife Service.
Species invasions in marine ecosystems pose a threat to native fish communities and can disrupt the food webs that support valuable commercial and recreational fisheries. In the Gulf of Mexico, densities of invasive Indo-Pacific Lionfish, Pterois volitans and P. miles, are among the highest in their invaded range. In a workshop setting held over a 2-week period, we adapted an existing trophic dynamic model of the West Florida Shelf, located in the eastern Gulf of Mexico, to simulate the lionfish (both species) invasion and community effects over a range of harvest scenarios for both lionfish and native predators. Our results suggest small increases in lionfish harvest can reduce peak biomass by up to 25% and also that reduced harvest of native reef fish predators can lead to lower lionfish densities. This model can help managers identify target harvest and benefits of a lionfish fishery and inform the assessment and management of valuable reef fish fisheries.
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