| 摘要 |
Nutrient-rich ocean water from the aphotic zone of the ocean, which normally begins at about 100 to 200 meters below the ocean surface, is desalinated or partially desalinated in situ using electro-dialysis to leave the nutrients in the water. The nutrient-rich desalinated water thus obtained, being of lesser density than the surrounding seawater, naturally rises through conduits into the relatively nutrient-poor photic zone of the ocean and is dispersed therein, thus increasing the concentration of nutrients in the photic zone near the surface of the ocean. This increases the fertility of the near-surface photic zone, and thus increases the supply of harvestable food fish from the near-surface photic zone.
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