Validation Constraints

Validation constraints are values that are checked in real-time during data entry. Specify minimum and maximum values for length, weight, and/or condition factor, per species/run/rear type. You may specify a value for one or all of the possible constraint fields. If a value is entered for that species during data entry which is outside the specified range, a warning will be displayed to the user; data entry can proceed after the dialog is acknowledged.

	Species Run Rear Type Warning
	When enabled (On), a warning will be displayed if a species/run/rear type value is selected during data entry that is not in this table.

	Min/Max Length
	Enter values for minimum and/or maximum fork length in millimeters. If a value above the maximum or below the minimum is entered for a record with the specified Species/Run/Rear Type during data entry, the user will be warned when the record is Accepted. The user can choose to Accept the record as is, or go back and enter a different value.

	Min/Max Weight
	Enter values for minimum and/or maximum weight in grams. If a value above the maximum or below the minimum is entered for a record with the specified Species/Run/Rear Type during data entry, the user will be warned when the record is Accepted. The user can choose to Accept the record as is, or go back and enter a different value.

Min/Max Condition Factor

Enter values for minimum and/or maximum condition factor. Condition factor is calculated automatically using the length and weight values entered in the current record, and should only be used when both values will be collected for each fish. If the calculated condition factor is above the maximum or below the minimum for a record with the specified Species/Run/Rear Type during data entry, the user will be warned when the record is Accepted. The user can choose to Accept the record as is, or go back and enter a different length and/or weight value.

There are two different formulas used to calculate condition factor, based on the Species Run Rear that is selected.

For all non-lamprey species, this formula is used:

Weight x 10⁵ / Length³

For any of the three lamprey species (Pacific Lamprey, Western Brook Lamprey, Wild Lamprey (species unknown)), this formula is used:

Weight x 10⁵ / Length^2.6

	Warn on Empty Length/Weight
	Check the appropriate box to warn the user if a record is Accepted with an empty length or weight. The user can choose to Accept the record as is, or go back and enter a value into the field that is empty.