Drifting

Nets hang vertically like those of lawn tennis field. The upper side of the net has floats and the lower side has weights which make the net hang vertically. The net is placed across the sea just a few metres below the water surface. As a shoal of fish tries to swim through the net, they are entangled by their gills and fins and so remain trapped in the net. Drift nets from several drifters can be combined to form a continuous curtain of nets stretching for more than two kilometres. It is used for catching pelagic species, those found near the water surface. Examples are Mackerel and Sardines.
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