Symbiotic Microalgae and Fish Production Method in Ponds

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Came across an interesting abstract for algae cultivation: "A method for producing biomass of microalgae and fishes economically by establishing a symbiotic relation between the above two organisms in a culture pond exposed to sunlight or artificial illumination."

A method for producing microalgae and fish biomass in commercial quantities through symbiotic co-culture, said method comprising continuously co-culturing microalgae and fish in high density in a body of water which is exposed to sunlight or artificial illumination, the density of said microalgae in said water being sufficient to supply the oxygen requirements of said fish, and to assimilate nitrogen excreted therefrom sufficient to prevent a level toxic to said fish from developing said microalgae density being at least 0.3 g (dry weight)/1, the density of said fish in said water being sufficient to supply the carbon dioxide and nitrogen requirements of said microalgae for optimal growth, and sufficient to prevent protozoal contamination, said fish denisty being at least 30 g/1, said microalgae and said fish being periodically harvested from said water thereby maintaining said density of said microalgae and said fish.

Read the full patent details here

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