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Raceway

A production system in which water flows through a series of troughs or tanks at relatively high flow rate. Smaller fish are usually stocked at the beginning of the raceway and larger fish stocked toward the end.

Recycle Aquaculture Systems

The use of water more than one time for fish propagation. There may or may not be water treatment between uses and different rearing units may be involved.

Respiration

The utilization of oxygen in the breakdown of carbohydrates and releases carbon dioxide and water as by-products.