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Amity Net Grid
The amity net grid is a selective device designed to separate nephrops from fish. -
SELTRA Box - Diamond mesh
The SELTRA box is a four panel extension section with a top panel of either large diamond mesh or large square mesh to encourage small fish to escape. -
SELTRA Box - Square mesh panel
The SELTRA box is a four panel extension section with a top panel of either large diamond mesh or large square mesh to encourage small fish to escape. -
Sort X grid
The Sort X grid was developed in Norway as a measure to reduce the numbers of small fish being caught when targeting cod in the Barents Sea. -
Headline Height
A trawl or static net where the gear has been redesigned to keep the headline (top of the net) low to prevent the capture of high swimming species. -
Benthic Panel
A benthic panel is a small panel of square mesh or large diamond mesh inserted in the bottom panel of a trawl. -
Cefas Net Grid
The Cefas Net Grid is a selective device designed to separate nephrops from fish. -
Separator panels
A separator panel is a horizontal panel of netting designed to divide the trawl into two sections one above the other. -
Square Mesh Panels
The square mesh panel is one of the most common used and well known selective devices. -
Inclined Netting Grids
An inclined netting grid is a panel of netting fitted inside a trawl and set at an angle. -
Coverless Trawls
A coverless trawl has the top panel of the net cut back so that the headline and footrope are of similar length. -
Fish Stimulation
Fish stimulation being used as a selective device is still a relatively new concept. It is being trialled using a light, sound or electric pulses.