An apparatus is a mountable fishing baitwell. The apparatus allows a user to easily access live bait and properly sustains live bait. The apparatus includes a support structure, a water reservoir, a mounting base, and an aeration unit. The support structure upholds the water reservoir and houses the aeration unit. The water reservoir contains the water and the live bait. The mounting base secures the apparatus onto the bow rail of a boat. The support structure further includes a structure body, a reservoir bed, and a storage compartment. The water reservoir further includes a receptacle and a hand-permeable cover. The hand-permeable cover detachably attaches about an opening of the receptacle, and thereby prevents the live bait from escaping and allows the receptacle to be refilled. The aeration unit distributes oxygen into the water within the receptacle which better sustains the live bait within the receptacle.

An enclosed incubation system for production of trout fish is disclosed. The incubation system includes: an ultraviolet unit to disinfect water prior to entering the system, a disinfecting tank to disinfect water, a plurality of water tanks to supply water, a water heater, a plurality of fish tanks, a plurality of inlet and outlet valves, a plurality of canals, a first and a second aeration pump to aerate the plurality of the fish tanks.

A live well oxygen and temperature level alert and control apparatus including a temperature sensor and oxygen sensor con figured to sense the temperature and oxygen level of a live well. The sensed signal is seat to a controlling and monitoring apparatus. The controlling and monitoring apparatus is linked to a heating or cooling control system of the live well. Further, the alert apparatus may be configured to control the supply of the fresh or salt replacement water to the live well by controlling a valve supplying such water. The controlling and monitoring apparatus is configured to alert a user about the oxygen and temperature level of the water inside the live-well and control these levels via a user interface. The further inventive aspects can be embodied in one or more of a display screen, a speaker, and an alarm for communicating oxygen and temperature level to a user.

An aquaculture environment control system comprising a plurality of discharge conduits positioned in a vessel, the discharge conduits including one or more orifices; a fluid source in fluid communication with the plurality of discharge conduits; a gas supply source in fluid communication with at least one of the plurality of discharge conduits; wherein discharging fluid from the plurality of discharge conduits into the vessel creates or maintains a current throughout fluid present within the vessel. A method of controlling an aquaculture environment comprising supplying one or more of a fluid and a gas to a plurality of discharge conduits positioned in a vessel; and discharging the one or more of the fluid and the gas from at least one of the plurality of discharge conduits to the vessel, the discharging creating or maintaining a current within the vessel.

The invention relates to a water inlet arrangement for the use in fish tanks in aquaculture, including a pipe to feed water into the tank, the pipe having a plurality of openings and, for a better adjustment of the flow, a surrounding second element having a plurality of openings and/or a fixed or adjustable shield are provided.

A circulation type aquaculture method and a circulation type aquaculture apparatus which treat and remove ammonia harmful to fishes/shellfishes. The method includes a first step of finding an ammonia decomposition rate upon preliminarily treating cultivation water by using ozone or hypochloric acid so as to set a target remaining amount of ammonia after the decomposing treatment, a second step of finding the amount of ammonia in cultivation water so as to calculate a treating period of time required for reducing the amount of ammonia to the target remaining amount of ammonia based upon the ammonia decomposition rate of the first step, a third step of treating the cultivation water using ozone or hypochloric acid during the treating period of time calculated in the second step so as to treat and decompose ammonia in the cultivation water and a fourth step of returning the cultivation water to the aquaculture tank.

An aquaculture system including, at least one grow-out tank; a fluid treatment system including a fluid treatment device, a recirculation pump and fluid connections to each of said at least one grow-out tanks for circulating fluid from each of the at least one grow-out tanks through the fluid treatment device; and at least one fluid delivering device which is connected to the fluid treatment system for delivering said circulated treated fluid to said at least one grow-out tank, which fluid delivering device includes an outlet which can be provided in a position within the at least one grow-out tank such that the treated fluid delivered out from the outlet will be delivered along a bottom of said at least one grow-out tank wherein the outlet of the at least one fluid delivering device is configured such that it can be rotated in order for delivering the fluid in different directions along the bottom of the grow-out tank, wherein the at least one fluid delivering device is configured for delivering the treated fluid to substantially the whole bottom of said at least one tank at a velocity which is enough for resuspending sedimented particles, wherein said fluid treatment system is connected to and is serving said at least one grow-out tank intermittently with time constraints which are based on cultivation conditions for an aquaculture in said at least one grow-out tank.

Embodiments of the present disclosure describe an aquaculture environment control system comprising one or more control apparatuses positioned within a vessel at an angle relative to a proximal vessel wall and configured for scouring of the vessel, wherein each control apparatus has a discharge conduit and each discharge conduit has one or more orifices; and a fluid source in fluid communication with each of the control apparatuses. Embodiments of the present disclosure describe a method of controlling an aquaculture environment comprising supplying one or more of a fluid and gas to a control apparatus positioned within a vessel at an angle relative to a proximal vessel wall; and discharging one or more of the fluid and gas from the control apparatus at a fluid velocity sufficient for scouring of the vessel.

Fish tank spray devices of embodiments of the disclosed technology include a length of horizontal pipe with multiple portals arranged in a row which extend into the length of horizontal pipe. Water is sprayed from these portals in embodiments of the disclosed technology. The other side of the pipe is connected to various lengths of pipe which bring the water to the spray bar including a 270 degree bent length of a pipe followed by a 180 degree bent length of pipe having an interior in fluid and direct connection with the length of horizontal pipe. These turns can be adjusted in a transverse direction by rotating connection points within the pipes in two different planes which are perpendicular to each other allowing the spray bar to be oriented parallel and abutting against a length of an inside of the fish tank wall.

A process and apparatus is described for enhancing the efficacy and longevity of vaccines given to fish.