Fishing nets

All fishing nets are meshes usually formed by knotting a relatively thin thread. Modern nets are usually made of artificial polyamides like nylon, although nets of organic polyamides such as wool or silk thread were common until recently and are still used in certain areas.

A small hand net held open by a hoop and possibly on the end of a long stiff handle has been known since antiquity and may be used for sweeping up fish near the water surface. Such a net used by an angler to aid in landing a captured fish is known as a landing net. In England, hand netting is the only legal way of catching eels and has been practiced for thousands of years on the River Parrett and River Severn.

A casting net is circular with a weighted periphery. Sizes vary up to about 4 m diameter. The net is thrown by hand in such a manner that it speads out on the water and sinks. Fish are caught as the net is hauled back in. [5].
Coracles on the River Teifi, Wales 1972
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Coracles on the River Teifi, Wales 1972

Coracle-fishing is performed by two men, each seated in his coracle and with one hand holding the net while, with the other, he plies his paddle. When a fish is caught, each hauls up his end of the net until the two coracles are brought to touch and the fish is then secured.

The Chinese fishing nets (Cheena vala) found at Kochi in India are an unusual method of fishing. Huge mechanical contrivances hold out horizontal nets of 20 m or more across. The nets are dipped into the water and raised again, but otherwise cannot be moved.

A seine is a large fishing net that hangs vertically in the water by attaching weights along the bottom edge and floats along the top.

Trawling is a method of fishing that involves actively pulling a fishing net through the water behind one or more boats.

A gillnet catches fish which try to pass through it by snagging on the gill covers. Thus trapped, the fish can neither advance trough the net nor retreat.

Ghost nets are nets that have been lost at sea. They may continue to be a menace to wildlife for many years.