Overview
- An international team sampled 85 sharks near Eleuthera and found residues in 28, with caffeine most common and cocaine in two.
- The sample covered lemon, tiger, small blacktip, Caribbean reef and Atlantic nurse sharks caught near a popular dive area by a derelict fish farm.
- The authors cite untreated sewage from cruise ships and local tourism discharges as plausible contamination routes.
- Researchers say the chemicals could harm marine life and reach people through seafood or contact with polluted water.
- The study urges wider monitoring to gauge long-term effects as visitor numbers to the Bahamas hit 12.5 million in 2025, straining wastewater systems.