Fig. 3

Cradle with (1) fitted and padded smooth vinyl surfaces to safely restrain the fish and avoid skin abrasions, (2) a ruler printed on the pads for rapid fish length measurement and to reduce the time the fish is out of the water; (3) a gap at the base to allow possible passage of dorsal fins and tail; (4) positioning of the cradle to provide protection from sea-spray, inclement weather, and direct sunlight; (5) stable legs that ensures the cradle is at a comfortable height for BCT implementation; (6) easy to clean (and detachable) surgical and tag trays to store all surgery tools and BCTs fixed in ergonomically and easily accessible locations