Otoliths, scales, and spines of two recaptured subadult red drumsSciaenops ocellatus(514 and 537 mm total length) were examined for induced fluorescence 10 months after injection with oxytetracycline–HCl at about 50 mg/kg body weight. Both fish exhibited fluorescence in sagitta, lapillus, and asteriscus otoliths, scales, and dorsal and anal spines. Sagittae from both fish had formed an annulus between release and recapture.