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Estimating metabolism of fish in aquacultural production systems

W. H. Neill, E. L. Oborny Jr., S. R. Craig, M. D. Matlock, D. M. Gatlin III
Volume 4, June 2003


Open-system respirometry offers a practical approach for measuring metabolic rates of fish cultured at high densities in uncovered raceways. Central to this methodology is analysis of a dynamic mass-balance on oxygen supply and demand. Here, we present a validated mass-balance equation, describe minimally disruptive procedures for estimating its parameters, and illustrate its use in estimating oxygen-uptake rate of fish as a group, in real time and under actual production conditions.