Assessment of a Semi-Closed, Renewable Resource-Based Aquaculture System

摘要

Results of four long-term productivity experiments examining the subtleties of aquatic ponds are reported. These experiments consist of testing surface area and aeration, nitrogen input types and rates, fish monoculture under different aeration rates, and comparative growth evaluation. Five basic points are made: fish feeding rates and types affect fish growth; the ecosystem absorbs nutrients potentially toxic to fish; feeding rates affect water quality; water quality affects fish growth; and solar-algae ponds conserve energy. Improvements in the computer system are traced and their implications discussed. Following a description of the computer models developed to synthesize and draw meaning from the data, a comprehensive model of fish growth and water quality is outlined and future experiments described.