Description
Return nominal pond closing volume and residual.
Aquaculture material budgets distinguish as-fed mass, dry mass, specific energy and nutrient fractions. Offered feed, recovered feed and estimated intake are different quantities. Arithmetic balances do not determine biological utilization, an appropriate diet, disease status or a safe feeding recommendation.
Return nominal pond closing volume and residual.
When to use this tool
Use Pond Drain Volume Residual when checking the stated aquaculture feed, material or composition basis.
How to use the tool and how it works
- Enter opening, inflow, pumpedOut, evaporated, measuredClosing. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read predictedClosing, residual. Use the output convention below.
Return nominal pond closing volume and residual. Require nonnegative amounts; predictedClosing = opening+inflow-pumpedOut-evaporated, residual = measured-predicted.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| opening | Opening | Required. Finite number; minimum 0. |
| inflow | Inflow | Required. Finite number; minimum 0. |
| pumpedOut | Pumped Out | Required. Finite number; minimum 0. |
| evaporated | Evaporated | Required. Finite number; minimum 0. |
| measuredClosing | Measured Closing | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| predictedClosing | Predicted Closing | Required. Finite number. |
| residual | Signed observed/calculated-minus-reference difference under the operation specified above. | Required. Finite number. |
{
"input": {
"opening": 100,
"inflow": 20,
"pumpedOut": 50,
"evaporated": 5,
"measuredClosing": 60
},
"output": {
"predictedClosing": 65,
"residual": -5
}
}Limitations and assumptions
- Negative predictions are retained; leakage, rainfall, storage geometry and actual safe operating conditions are not resolved.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified feed and animal records, representative measurements and qualified aquaculture/veterinary advice for actual nutrition, welfare or water-quality decisions.
References
Similar or alternative tools
- Aquaponic Water Level Pump Cycle Budget
Return pump-cycle totals and nominal closing water volume.
- Aquaculture Tank Drain Residual Volume
Return rectangular-tank initial, retained and drained volumes.