Abstract
Abstract Corneal cloudiness, ranging from barely detectable to complete opaqueness, and corneal perforation were repeatedly observed over several years in largemouth bass (Micropterus salmoides) subjected to handling stress. The incidence of corneal clouding and the recovery rate were studied by subjecting largemouth bass (15 cm average total length) to simulated truck transport for 6 to 28 h. Groups of 100 fish were removed from the simulator at about 6-h intervals. Their eyes were examined and pectoral fins adjacent to affected eyes were clipped. The fish were placed in recovery tanks and were examined periodically for 28 d. The incidence of cloudiness after various durations of simulated transport ranged from 46 to 83%. The eyes generally cleared once the fish were removed from the simulator; 80% of the cloudy eyes cleared within 20 to 36 h, and all nonperforated eyes were clear within 7 d.
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