Target_length_mean is a single target and fish track analysis export variable.

It reports the mean of the target_lengths in the domain which was analyzed.

Target_length_mean is calculated for single target variables that have been created using the target length calculator operator, the target conversion operator or the TS substitution operator. It is exported only if it is selected on the Export page of the EV File Properties dialog box.

See also

Single target analysis variables
About target properties
Target properties from multibeam data