초록 ▼

A dietary inclusion model for an integrated aquaculture-hydroponics system is derived from the concept of mass conservation. The model enables the maintenance of near-equilibrium concentrations of Ca, K, Mg, N, and P, suitable concentrations of Mn and Cu, and acceptable accumulation rates of Na and

A dietary inclusion model for an integrated aquaculture-hydroponics system is derived from the concept of mass conservation. The model enables the maintenance of near-equilibrium concentrations of Ca, K, Mg, N, and P, suitable concentrations of Mn and Cu, and acceptable accumulation rates of Na and Zn, in representative integrated aquaculture-hydroponics systems, by modifying the mineral concentrations of the fish diets according to the model. The model is readily applicable to virtually any freshwater recirculating fish culture system operating at a recycle ratio sufficiently high to maintain appropriate nitrogen concentrations and having an environment suitable for hydroponic plant culture.

대표청구항 ▼

[ I claim:] [1.] In an integrated aquaculture-hydroponics system for the concurrent production of fish and plant species, wherein a feed is added to meet the fish and plant species nutrient requirements, a method for maintaining dissolved mineral concentrations in the system at optimal levels, compr

[ I claim:] [1.] In an integrated aquaculture-hydroponics system for the concurrent production of fish and plant species, wherein a feed is added to meet the fish and plant species nutrient requirements, a method for maintaining dissolved mineral concentrations in the system at optimal levels, comprising the following steps:(a) determining a nitrogen concentration in said feed that produces a substantially constant nitrogen concentration in the system;(b) for each of a plurality of minerals in the system, determining a rate of decrease of the concentration of said mineral in the system when said nitrogen concentration is maintained substantially constant; and(c) supplement said feed with each of said plurality of minerals such that the concentration of the mineral is maintained substantially constant in the system.