Rectangular Mid-Water Trawl
An RMT 2+8 is shown being retrieved, with only the closed top net clear of the water.
An RMT 2+8 raised on a crane, with top net in the open position.
The designation “2+8″ indicates effective net mouth sizes (at 45 deg angle) of:
Top Net: 2 sq metres
Bottom Net: 8 sq metres