Device for farming benthic organisms such as bivalves

A farming device for benthic organisms, the farming device being adapted to be submerged in a water tank or a body of water, and the farming device comprising:

• a housing;
• a plurality of cultivating trays stacked vertically within the housing, each one of the plurality of cultivating trays having a vertical spacing relative to a vertically adjacent other of the plurality of cultivating trays and having a horizontal spacing occurring between an outer peripheral edge of the cultivating tray and the housing;
• a central channel extending vertically and spanning at least a cumulative height of the plurality of cultivating trays;
• wherein each one of the cultivating trays comprises a plurality of arcuate sections, each one of the arcuate sections comprising a mesh bottom, an outward, circumferentially-extending wall of a first height and a radially extending wall of a second height greater than the first height;
• wherein the device is configured so that when the plurality of cultivating trays are stacked, the radially extending walls align vertically to form a barrier limiting circumferential water flow from one of said plurality of arcuate sections to an adjacent other of said arcuate sections of a common one of said plurality of cultivating trays for each one of said plurality of cultivating trays;
• and
• wherein for each said one of said plurality of arcuate sections there is an opening to the central channel at a radially inward portion of said one arcuate section through which water flows.