Rational Design of Hatcheries for Intensive Salmonid Culture, Based on Metabolic Characteristics
design, design criteria, dissolved oxygen, hatchery, water exchange, water quality
Journal or Book Title
The Progressive Fish Culturist
Design criteria for new hatcheries for the intensive culture of fish should be based on a correlation of water quality characteristics with data on fish metabolism. This paper presents much of the available information on water quality (pH, temperature, dissolved oxygen, and un-ionized ammonia), water exchange rates, and fish metabolism, and suggests appropriate management practices and design criteria that take these factors into account. Specific recommendations include a water exchange rate of four per hour, dissolved oxygen saturation of 90% in incoming water and not less than 5 mg/l in effluent water, and a maximum allowable concentration of 0.0125 mg/l of un-ionized ammonia.