Estimating metabolism of fish in aquacultural production systems
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.