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

Measured Oxygen Mg Per Liter (mg/L)

Required number in mg/L.

Saturation Oxygen Mg Per Liter (mg/L)

Required number in mg/L.

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

Express measured dissolved oxygen as a percentage of the saturation concentration at the same conditions. Inputs are interpreted exactly in the displayed units and the calculation returns the following fields without presentation rounding.

Oxygen Saturation Percent (%)

Returned number in %.

• 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.

• BOD Aquaculture

  Compute oxygen demand from initial and final dissolved oxygen with the dilution fraction; incubation duration and controls must be specified externally.

• Gonadosomatic Index

  Express gonad mass as a percentage of whole-body mass.

• Hepatosomatic Index

  Express liver mass as a percentage of whole-body mass.