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AssigneeAsahi Kasei Kogyo Kabushiki Kaisha
InventorsNaoya Kominami, Hirokazu Fukumi, Naokuni Yamawaki, Junji Nomura
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Aquatic animals can be kept in a living condition over a long period of time, without feeding them, by placing the aquatic animals, at a large density of more than 200 kg/m.sup.3 in environmental water; maintaining the temperature of the environmental water in a lowest possible range in which it is possible for the aquatic animals to exist; controlling the concentrations of ammonia compounds, water-soluble organic compounds and carbonic acid radical in the environmental water so that their levels do not exceed 20 ppm, 150 ppm and 1,000 ppm, respectively; and regulating the concentration of molecular oxygen dissolved in the environmental water so that it is 3 ppm or more.
A method for keeping aquatic animals alive over a long period of time without feeding them and in a high density in environmental water, comprising the steps of:
Dependencies are inferred from the claim text.