Description
Divide nonnegative preservedMass by suppliedRetainedFraction in (0, 1] for conditionalFreshMass and subtract nonnegative freshReference for referenceGap.
Preservation can change specimen dimensions and mass. A retained/original factor describes a supplied correction assumption; applying it does not measure what happened to a particular specimen.
Divide nonnegative preservedMass by suppliedRetainedFraction in (0, 1] for conditionalFreshMass and subtract nonnegative freshReference for referenceGap.
When to use this tool
Use Fish Mass Preservation Base Term when you need to apply a documented preservation factor to an existing measurement.
How to use the tool and how it works
- Enter preservedMass, suppliedRetainedFraction, freshReference. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read conditionalFreshMass, referenceGap. Use the output convention below.
Divide nonnegative preservedMass by suppliedRetainedFraction in (0, 1] for conditionalFreshMass and subtract nonnegative freshReference for referenceGap.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| preservedMass | Preserved Mass | Required. Finite number; minimum 0. |
| suppliedRetainedFraction | Supplied Retained Fraction | Required. Finite number; maximum 1; strictly above 0. |
| freshReference | Fresh Reference | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| conditionalFreshMass | Conditional Fresh Mass | Required. Finite number. |
| referenceGap | Reference Gap | Required. Finite number. |
{
"input": {
"preservedMass": 80,
"suppliedRetainedFraction": 0.8,
"freshReference": 90
},
"output": {
"conditionalFreshMass": 100,
"referenceGap": 10
}
}Limitations and assumptions
- All masses share one unit; the result is conditional on the supplied retention fraction, without estimating preservative effects or actual original mass.
- 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
Retain the original observations and check specimen-specific preservation evidence and measurement uncertainty.
References
Similar or alternative tools
- Fish Sample Preservation Shrink Factor
Divide nonnegative preservedLength by positive originalRetention and preservedMass by positive massRetention.
- Fish Condition Relative Weight Reference
Divide nonnegative observedMass by positive referenceMass for relativeWeight, multiply by 100 for percentReference, and subtract referenceMass for residualMass.