A delivery device and system to supplement CO.sub.2 in an underwater environment without the need for electricity or the use of compressed CO.sub.2. The device consists of a container containing a biological organism such as mycelium and including an exit portal for CO.sub.2 to enter the underwater environment. The device may also incorporate a separation device to delay and control the flow of CO.sub.2. The system requires the device to be held in place through a securing point in the underwater environment. The minimum requirements for the device are described, but in certain instances it will be preferably used with a double-bag or an outer shell housing to protect or aesthetically conceal the placement underwater. The use of this device and system to supplement carbon dioxide in water will span many industries and applications. It will assist with mosquito trapping. It will also supplement CO.sub.2 in underwater growing environments.

A delivery device and system to supplement CO.sub.2 in an underwater environment without the need for electricity or the use of compressed CO.sub.2. The device consists of a container containing a biological organism such as mycelium and including an exit portal for CO.sub.2 to enter the underwater environment. The device may also incorporate a separation device to delay and control the flow of CO.sub.2. The system requires the device to be held in place through a securing point in the underwater environment. The minimum requirements for the device are described, but in certain instances it will be preferably used with a double-bag or an outer shell housing to protect or aesthetically conceal the placement underwater. The use of this device and system to supplement carbon dioxide in water will span many industries and applications. It will assist with mosquito trapping. It will also supplement CO.sub.2 in underwater growing environments.

The automated fish-feeding device comprises a feeder mechanism and a controller. The automated fish-feeding device may be adapted to dispense fish food to fish in an aquarium in the absence of a user. As a non-limiting example, the automated fish-feeding device may dispense the fish food while the user is on vacation. The feeder mechanism may dispense a plurality of seaweed sheets, frozen fish food cubes, or both in accordance with a predetermined schedule. The feeder mechanism may comprise a refrigeration unit for chilling the frozen fish food cubes and a pump to thaw an individual frozen fish food cube using aquarium water before dispensing the individual frozen fish food cube. The automated fish-feeding device may be packaged in an aquarium-mount enclosure that hangs on the side of the aquarium.

The automated fish-feeding device comprises a feeder mechanism and a controller. The automated fish-feeding device may be adapted to dispense fish food to fish in an aquarium in the absence of a user. As a non-limiting example, the automated fish-feeding device may dispense the fish food while the user is on vacation. The feeder mechanism may dispense a plurality of seaweed sheets, frozen fish food cubes, or both in accordance with a predetermined schedule. The feeder mechanism may comprise a refrigeration unit for chilling the frozen fish food cubes and a pump to thaw an individual frozen fish food cube using aquarium water before dispensing the individual frozen fish food cube. The automated fish-feeding device may be packaged in an aquarium-mount enclosure that hangs on the side of the aquarium.

An aquaculture system including an aquaculture tank for holding aquaculture water for culturing an aquatic organism, a thermal insulation house that covers the aquaculture tank, an insulation positioned on at least part of a region surrounding the aquaculture tank, and a temperature adjuster that adjusts a temperature inside the thermal insulation house and/or a temperature of the aquaculture water in the aquaculture tank.

An aquaculture system including an aquaculture tank for holding aquaculture water for culturing an aquatic organism, a thermal insulation house that covers the aquaculture tank, an insulation positioned on at least part of a region surrounding the aquaculture tank, and a temperature adjuster that adjusts a temperature inside the thermal insulation house and/or a temperature of the aquaculture water in the aquaculture tank.

An aquaculture system including an aquaculture tank for holding aquaculture water for conducting biofloc aquaculture therein, and an immobilizing material in the aquaculture tank. The immobilizing material includes a carrier that carries nitrifying bacteria.

An aquaculture system including an aquaculture tank for holding aquaculture water for conducting biofloc aquaculture therein, and an immobilizing material in the aquaculture tank. The immobilizing material includes a carrier that carries nitrifying bacteria.

Generating consensus biomass estimates include providing a first biomass parameter data set associated with a first biomass attribute parameter to a first biomass estimation model and providing a second biomass parameter data set associated with a second biomass attribute parameter to a second biomass estimation model different from the first biomass estimation model. The first biomass estimation model is adaptively weighted with a first weighting factor relative to a second weighting factor for the second biomass estimation model. An aggregated biomass estimate is determined based on a combination of the first biomass estimation model using the first weight factor and the second biomass estimation model using the second weight factor.

Generating consensus biomass estimates include providing a first biomass parameter data set associated with a first biomass attribute parameter to a first biomass estimation model and providing a second biomass parameter data set associated with a second biomass attribute parameter to a second biomass estimation model different from the first biomass estimation model. The first biomass estimation model is adaptively weighted with a first weighting factor relative to a second weighting factor for the second biomass estimation model. An aggregated biomass estimate is determined based on a combination of the first biomass estimation model using the first weight factor and the second biomass estimation model using the second weight factor.