Use this calculation to compare aquaculture production, feeding, growth, water-quality, or hatchery measurements collected with the same definitions and units.

Replacement Volume Cubic Meters Per Day (m³/day)

Required number in m³/day.

System Volume Cubic Meters (m³)

Required number in m³.

The cited overview of Aquaculture supplies background for the terminology and domain context used by this tool.^[1]

Express daily replacement water volume as a percentage of system volume. Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.

Daily Exchange Percent (%/day)

Returned number in %/day.

• Species, life stage, temperature, salinity, system design, sampling method, and management practice can materially change aquaculture measurements and suitable operating ranges.
• Use finite inputs in the displayed units, preserve source measurements and assumptions, and independently verify consequential decisions.

Complement the calculation with calibrated water-quality instruments, representative sampling, feed and mortality records, and species-specific guidance from qualified aquatic-health or production professionals.

• Daily Feed Rate

  Convert a chosen daily feeding percentage of live biomass into feed mass per day.

• Ammonia Excretion

  Estimate daily total-ammonia-nitrogen excretion from biomass and an externally determined excretion rate.

• DO Saturation

  Express measured dissolved oxygen as a percentage of the saturation concentration at the same conditions.