Investigating The Biomass - Simrad ES80 Reference Manual

Simrad ES80 Reference Manual
Selecting
Setup
the
Information Pane Options
parameters are to define the upper and lower depth limits most likely to be used
during the ES80 operation.
7 Select in the top right corner to close the information pane.
Close

Investigating the biomass

The Biomass information pane displays an index of the biomass in the current echogram
view. The biomass index is the same as the NASC (Nautical area scattering strength)
with unit m 2 /nmi 2 .
Context
The digit shown in the Biomass information pane is a calculated index.
Tip
The Biomass Line allows you to monitor the current biomass in the echogram. This
function writes an extra thick and brightly coloured curve on the echogram. The
Biomass Line shows you the measured biomass for each individual ping. You can change
the scale of the curve to fit the vertical space available on the echogram. To enable the
Biomass Line function and change the scale, use the
box.
It is possible to convert the biomass index to weight (for example in metric tons). Based
on practical use of the ES80 in different fisheries, you will soon be able to estimate the
weight when you know the type of fish and their sizes.
Procedure
1 Click in any echogram view to make it "active".
The setting you choose will only be valid for the currently "active" echogram. The
"active" echogram view is identified with a thicker border.
2 On the top bar, select the appropriate button to open the information pane.
3 Click the bottom right corner of the information pane, and drag to requested size.
4 Select a
Transparency
The chosen transparency percentage is used on all open information panes.
132
in the Depth information pane opens the
dialog box. The purpose of the
setting that fits your requirements.
Bottom Detection
Bottom Detection
page in the
Lines Echogram
page in
dialog
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