Patent ID: 8753851

Claim:
A method for producing biofuel comprising (i) providing a source of water and a system comprising enclosures and water for culturing algae, culturing planktivorous fishes, and culturing bivalves, (ii) culturing the bivalves that increase the level of at least one dissolved nutrient in the water in the system relative to the water from the source; (iii) culturing the algae in the water in the system; (iv) culturing the planktivorous fishes in the water in the system; (v) feeding the algae to the bivalves at a rate such that the amount of algae produced in the system is greater than when the algae is cultured in the system without the bivalves; (vi) harvesting the algae by feeding the algae to the planktivorous fishes; (vii) harvesting the planktivorous fishes; (viii) extracting lipids from the harvested planktivorous fishes; and (ix) polishing the lipids to form biofuel.