Abstract: Time release bait containers can include an inner body and an outer body which can slidably engage one another and can be coupled in a sealed state by a time release coupling. The time release coupling can release after a period of time, after which the inner body can be deployed outward from the outer body by an actuator.

Abstract: Aquatic traps disclosed herein can be used for trapping crustaceans such as crab, prawns and shrimp, as well as fish and including flat fish. The traps can include a trap frame surrounded by mesh. The trap frame can include a tapered side which allows nested stacking of traps. The mesh can include floor mesh, side mesh, entrance mesh, and ceiling mesh. The entrance mesh can extend inwardly from a portion of the tapered side, and attach to an entrance frame. A tensioning element may hold the entrance frame upright inside the trap, or otherwise, the entrance frame can be self-erecting. The ceiling mesh can be releasable to collapse the ceiling and the entrances, thereby facilitating nested stacking of the traps.