A crawfish trap bait guard which, in use, is mounted upon the staking rod of a crawfish trap, inside the mesh of the crawfish trap, above the floor of the trap, and below the water line. The crawfish trap bait guard encloses the bait in such a way as to prevent the access of birds and fish to the bait, while allowing crawfish within the trap to obtain managed portions of the bait by reaching through calibrated open areas distributed around the crawfish trap bait guard so as to allow a large number of crawfish to feed at the same time.

A steel structure cage for marine crustacean aquaculture and integration thereof into a vertical fish-crustacean aquaculture system are disclosed. The steel structure cage includes a steel frame, top, side and bottom net systems, a ballast tank system, and steel grooves. The steel frame includes internal and external steel frames. The steel grooves are fixed on upper and lower ends of the internal steel frame. Edges of the top and bottom net systems are respectively fixed into the corresponding steel grooves. The side net is welded on the internal steel frame. The ballast tank system is arranged between the internal and external steel frames. A HDPE cage is moored to the steel structure cage to form a vertical aquaculture system. Whereby, an ideal culturing environment for marine crustaceans is given and the objective of vertical aquaculture culturing fish at top water layers and culturing prawns (crabs or cowries) at bottom water layers can be fulfilled.

A steel structure cage for marine crustacean aquaculture and integration thereof into a vertical fish-crustacean aquaculture system are disclosed. The steel structure cage includes a steel frame, top, side and bottom net systems, a ballast tank system, and steel grooves. The steel frame includes internal and external steel frames. The steel grooves are fixed on upper and lower ends of the internal steel frame. Edges of the top and bottom net systems are respectively fixed into the corresponding steel grooves. The side net is welded on the internal steel frame. The ballast tank system is arranged between the internal and external steel frames. A HDPE cage is moored to the steel structure cage to form a vertical aquaculture system. Whereby, an ideal culturing environment for marine crustaceans is given and the objective of vertical aquaculture culturing fish at top water layers and culturing prawns (crabs or cowries) at bottom water layers can be fulfilled.

A collapsible crab trap is provided with a centrally-located bait feeder made of wire mesh material. The trap and bait feeder are movable between a collapsed configuration and an assembled configuration. When in a collapsed configuration, it is easy to store or transport. The centrally-located bait feeder is constructed in such a manner that the crabs cannot remove an entire piece of bait from the bait feeder. Another feature of this crab trap is that the two side panels are weighted along their upper edges to positively open the side panels when on the ocean bed for the catching of crabs. These weighted side panels also provide a stable placement of the crab trap in strong moving currents.

A collapsible crab trap is provided with a centrally-located bait feeder made of wire mesh material. The trap and bait feeder are movable between a collapsed configuration and an assembled configuration. When in a collapsed configuration, it is easy to store or transport. The centrally-located bait feeder is constructed in such a manner that the crabs cannot remove an entire piece of bait from the bait feeder. Another feature of this crab trap is that the two side panels are weighted along their upper edges to positively open the side panels when on the ocean bed for the catching of crabs. These weighted side panels also provide a stable placement of the crab trap in strong moving currents.

A hoop net for deep water crab and lobster fishing includes a smaller upper double ring coupled to a larger lower double ring via lateral support beams, and covered by a net with an opening defined by the upper double ring, and further including a smaller inner double ring affixed to the bottom of the net and located centrally relative to the upper and lower double rings.

A hoop net for deep water crab and lobster fishing includes a smaller upper double ring coupled to a larger lower double ring via lateral support beams, and covered by a net with an opening defined by the upper double ring, and further including a smaller inner double ring affixed to the bottom of the net and located centrally relative to the upper and lower double rings.

Minnow traps suitable for trapping minnows may include a pair of spaced-apart, minnow-accessible side trap compartments. A minnow-accessible front trap compartment and a minnow-accessible rear trap compartment may be disposed between the side trap compartments. The front trap compartment and the rear trap compartment may be disposed in spaced-apart relationship to each other. At least one central bait compartment may be disposed between and communicate with the side trap compartments and between and communicate with the front trap compartment and the rear trap compartment. The at least one central bait compartment may be configured to contain a supply of bait.

Minnow traps suitable for trapping minnows may include a pair of spaced-apart, minnow-accessible side trap compartments. A minnow-accessible front trap compartment and a minnow-accessible rear trap compartment may be disposed between the side trap compartments. The front trap compartment and the rear trap compartment may be disposed in spaced-apart relationship to each other. At least one central bait compartment may be disposed between and communicate with the side trap compartments and between and communicate with the front trap compartment and the rear trap compartment. The at least one central bait compartment may be configured to contain a supply of bait.

A crab pot including a top, a bottom, and at least one side wall disposed between the top and the bottom, the top, bottom, and the at least one side wall being supported by a frame and enclosing an interior space. The crab pot further includes at least one entrance tunnel in the at least one side wall to permit entry of an animal into the interior space, the at least one entrance tunnel including a first end adjacent the at least one side wall and a second end opposite the first end, the second end disposed within the interior space. The crab pot also includes a trigger including at least one rod pivotably mounted at the second end of the at least one entrance tunnel.