A fish finder transducer mount apparatus for independently controlling a directional transducer and trolling motor includes a clamp body. A motor clamp is coupled to the clamp body. The motor clamp is selectively engageable with the clamp body and configured to secure the apparatus to a propeller shaft of a trolling motor. A directional transducer shaft is rotatably coupled to the clamp body and a directional transducer shaft bottom end of the directional transducer shaft to receive a directional transducer of a fish finder. A gearing system is coupled to the directional transducer shaft to rotate the directional transducer shaft. A handle is coupled to the gearing system. The handle comprises an extension portion secured by a user to manipulate the orientation of the directional transducer shaft.

A fish finder transducer mount apparatus for independently controlling a directional transducer and trolling motor includes a clamp body. A motor clamp is coupled to the clamp body. The motor clamp is selectively engageable with the clamp body and configured to secure the apparatus to a propeller shaft of a trolling motor. A directional transducer shaft is rotatably coupled to the clamp body and a directional transducer shaft bottom end of the directional transducer shaft to receive a directional transducer of a fish finder. A gearing system is coupled to the directional transducer shaft to rotate the directional transducer shaft. A handle is coupled to the gearing system. The handle comprises an extension portion secured by a user to manipulate the orientation of the directional transducer shaft.

The present invention relates to a harvesting system for harvesting zooplankton or mesopelagic fishes and a method of harvesting zooplankton or mesopelagic fishes.

The present invention relates to a harvesting system for harvesting zooplankton or mesopelagic fishes and a method of harvesting zooplankton or mesopelagic fishes.

This publication relates to a system and a method for hauling fish gear, such as longlines, gillnets or demersal seine nets, into a fishing vessel (10) and collecting and transporting catch (12) to a working station, using a hatch (16) in a part of a hull exposed to the sea and arranged in a water line region (27) of the vessel (10); a vertical well (18) for receipt of at least a part of the catch through the hatch (16); a transport device for transporting the catch to the deck; and with means for bringing the catch to flow towards the transport device. The transport device (24,25) used is arranged in a shaft (19), separated from the well (18), and a closable opening or hatch (23) is arranged in a wall or bulkhead (21) between the well (18) and the shaft (19) and with a devices for opening and closing the opening or hatch (23), a bottom (22) in the shaft (19) arranged at a lower level than the lower end of the closable opening or hatch (23) and a water level in the well (18); and a device for reducing the water level in the shaft (19).

An automatic fishing system includes a plurality of fishing machines each of which has rotation drums capable of winding fishing lines and capable of rotating in a reeling direction and an unreeling direction, a drive motor for driving the rotation drums in the reeling direction and the unreeling direction, and an electromagnetic clutch for transmitting rotation of the drive motor to the rotation drums, a hooking detection means for always detecting hooking of fish at any one of the plurality of fishing machines, and a fishing machine control means for controlling operations of the plurality of fishing machines in accordance with detection result of the hooking detection means. The fishing machine control means controls the rotation drums of other fishing machines that hook no fish in the reeling direction so that hooks of the other fishing machines are wound up to a water surface or near the water surface.

A system and method for automatically harvesting fish from an aquaculture cage is provided. Underwater robotic rovers draw out a large net from a protective enclosure. The net is manipulated to corral or concentrate the fish into a smaller volume. Transponders installed at strategic locations throughout the cage facilitate navigation of the rovers.

A system and method for automatically harvesting fish from an aquaculture cage is provided. Underwater robotic rovers draw out a large net from a protective enclosure. The net is manipulated to corral or concentrate the fish into a smaller volume. Transponders installed at strategic locations throughout the cage facilitate navigation of the rovers.

A blade propeller mechanism for a centrifugal pump for the transport of liquids and wildlife includes the following: at least one front plate and at least one rear plate, wherein the at least one front plate has a suction ring of the propeller and the at least one rear plate has an integrated motor coupling both the at least one front plate and at least one rear plate form a portion of an internal flow channel of the mechanism; at least one suction ring of the propeller; at least one drive coupling fixedly coupled with a drive axle; at least one cap includes at a first end of a deflector emitter, the at least one cap having a shape to cover an area of the drive coupling; at least one deflector emitter, located at the base of the back plate, and has a pyramidal shape, which gives way to the flow; at least two blades, wherein each of the at least two blades have a rectangular curved shape and a height that extends from the at least one rear plate to the at least one front plate, and a length that extends from an outside of the blade propeller inwards; at least two tubes corresponding with the at least two blades the at least two tubes coupled along an entire height of an inner side of the at least two blades and extending to a diameter of the at least one suction ring, wherein a number of the at least two blades is proportional to a number of the at least two.

A fish pumping system for moving upload water and fish includes a buffer pipe section having an upstream end and a downstream end. An inlet valve assembly is at the upstream end and provides fluid communication between the buffer pipe and an upstream fish origin. An outlet valve assembly is at the downstream end 5 and provides fluid communication between the buffer pipe and a fish destination. An inlet branch pipe is in fluid communication with the upstream end and an outlet branch pipe is in fluid communication with the downstream end. A production water piping circuit is in communication with the inlet branch pipe and the outlet branch pipe and forms a loop with the buffer pipe section. The 10 production water circuit pumps production water into the buffer pipe section through the inlet branch pipe and out from the buffer pipe section through the outlet branch pipe.