Patent ID: 8186909

Claim:
An artificial sea-mount constructed by piling up a plurality of block bodies, sunk in sea from the surface thereof, on the seabed to vertically mix seawater in a peripheral sea area using a tidal current, ocean current, and internal wave in the sea area where the plurality of block bodies are piled up, comprising: a first cone array formed from the plurality of block bodies and including at least three conical structures, each conical structure partially overlapping an adjacent conical structure and are linearly arrayed on the seabed in the continental shelf area, wherein a vertex interval between the conical structures adjacent to each other in said first cone array is set to 0.75 times to 2 times an average value of the bottom radii of the adjacent conical structures, so as to thereby induce, in the continental shelf area, vertical mixing of the seawater below a compensation depth containing nutrient salts with the seawater above the compensation depth where phytoplankton grows under sunlight.