Simrad PI Bottom Contact Catch monitoring sensor
Bottom contact measurements
The Simrad PI Bottom Contact
sensor will let you know immediately if your gear touches - or lifts
off - the bottom.
If your trawl lifts off
the bottom, this may cause fish to escape, and hence reduce the catch.
This sensor will detect this, and allow you to trim your equipment
for perfect balance.
On a pelagic trawl,
this sensor proves very useful when the trawl moves downwards. It
will let you know immediately if the footrope touches bottom.
When you work with a purse seine, you need to know when
the seine reaches the bottom. This sensor will let you know. once
Used on a Danish seine, the
sensor will let you know when the net has a stable bottom contact,
and when it is time to haul.
scientific surveys, an exact definition of towed distance with proper
ground gear contact is an essential parameter in bottom trawl swept
area estimates of fish abundance. Using a PI Bottom Contact sensor
will reduce errors in this key parameter.