A corpse trap (150) for a super buoy fish enclosure (100) is configured to receive and capture dead fish or carcasses (M) sinking from the fish enclosure. A carcass trap is attached to the bottom of the spar buoy (110) to define a first passage (90). The sinking carcass enters the upper receiving part (150U) of the carcass trap and encounters a sloping lateral panel (154). Gravity causes the carcass to enter the lower containment (150L) through the second passage (B) and into the area below the lateral panel (154), and when the carcass becomes positive buoyancy, Do not leave. The containment optionally includes a converging channel to a valved port that allows for the evacuation of carcasses. The carcass trap may be located at the distal end of the spar buoy and may be located at an intermediate position below the spar buoy.
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