9 Changing the calculation parameters for the Biomass information pane

The Calculation Interval settings define the parameters that are used to calculate the biomass. You can base the calculations on sailed distance, elapsed time, or a portion of the echogram view.

Context

The biomass and size distribution values are calculated based on the echo data collected. Use the Calculation Interval settings to limit the source data used by these calculations. You can base the calculations on data collected

•

within a given time frame

•

from a defined number of pings

•

from the data used to create a portion of the current view

The Calculation Interval parameters can accessed from two places in the user interface.

•

The page is opened in the Information Pane Options dialog box.

•

The dialog box is opened using the Calculation Interval button on the Setup menu.

The parameters are the same, it does not matter if you use the page or the dialog box.

Procedure

Open the Setup menu.

Select Calculation Interval to open the dialog box.

Adjust the setting to fit your requirements.

•

Select Distance to allow the EK80 export to make the calculations based on the echo data collected during a sailed distance.

•

Select Time to make the calculations based on the echo data collected during the last elapsed seconds or minutes.

•

Select Ping to make the calculations based on the echo data collected during the latest number of Acoustic transmissions (pings).

If relevant, select Apply to All Channels and/or Apply to All Layers..

Select OK to save the selected setting and close the dialog box.