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Additional Information

Competing Interests

The author declares he has no competing interests.

Author Contributions

Juan C Levesque conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.


This work was supported in part by funding from Florida saltwater fishing license sales and the Department of Interior, U.S. Fish and Wildlife Service, Federal Aid for Sportfish Restoration Project Number F-43 to the Florida Fish and Wildlife Conservation Commission. Sampling in the Little Manatee River was made available through grants CM-254 and CM-280 from the Department of Environmental Regulation, Office of Coastal Management, with funds made available through the National Oceanic and Atmospheric Administration under the Coastal Zone Management Act of 1972, as amended. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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