Abstract: There is provided an aquaculture assembly for generating compressed air and concentrated oxygen. The assembly includes an aeration system. The assembly includes an oxygen concentrator. The assembly includes a compressor operatively connected to both the aeration system and the oxygen concentrator. The compressor selectively directs compressed air to the aeration system, the oxygen concentrator or both the aeration system and the oxygen concentrator. The assembly may include a variable speed engine directly coupled to the compressor. There is also provided oxygen generation system with a fluid-air heat exchanger configured to receive therethrough and cool compressed air. A filtration unit, downstream of the fluid-air exchanger, removes liquid from the compressed air so cooled. An oxygen concentrator, downstream of the filtration unit, includes one or more vessels via which the compressed air is selectively received. Each said vessel includes an adsorbent and a desiccant therewithin.

Abstract: There is provided an aquaculture assembly including an oxygen dissolution system configured to receive pressurized water therethrough and increase a level of dissolved oxygen therewithin. The assembly includes a feed system in line with the oxygen dissolution system. The output of the oxygen distribution system comprises the input of the feed system in one example. Selective adjustment of water flow balancing valves enables the extent to which oxygen is dissolved within the water to be adjusted. There is provided a method of providing aquaculture feed comprising: dissolving oxygen into water via an oxygen dissolution system so as to output water of elevated dissolved oxygen; positioning a manifold, feed delivery conduits, water flow meters and/or flow balancing valves downstream of the oxygen dissolution system; and leveraging backpressure from the manifold, feed delivery conduits, water flow meters and flow balancing valves, to promote further dissolution of oxygen into the water.

Abstract: There is provided an oxygenation assembly submersible within a body of water. The oxygenation assembly includes a mass transfer vessel configured to receive water and promote dissolving of oxygen therewithin at least in part using pressure from the body of water. The vessel is elongate and may have a fixed diameter. The oxygenation assembly includes a bubble generator downstream of the vessel and which functions as a throttling device. The bubble generator is configured to dissipate pressure within the vessel in a manner that promotes breaking up of remaining undissolved gaseous bubbles. The oxygenation assembly may include an aeration system coupled to and in this example in line with the vessel. The aeration system disperses water of elevated dissolved oxygen content throughout a larger volume of water having a lower bulk dissolved oxygen concentration.

Abstract: A segment for a modular floatation collar comprises a frame having a recessed compartment and a removable decking covering the recessed compartment. The frame is mounted on a floatation unit. There are a plurality of rigging hardpoints and a plurality of installation hardpoints disposed along the frame. A universal connection at each end of the frame allows the segment to be connected to an adjacent segment either linearly along a common axis or orthogonally at a right angle. The floatation unit extends between adjacent segments in the floatation collar.