METHOD AND DEVICE FOR TRAWL FISHING Russian patent published in 2010 - IPC A01K73/02 

FIELD: agriculture.

SUBSTANCE: proposed method envisages usage of a net with the help whereof the catch is captured and collected during trawl fishing. The end of the trawl net is designed to be open. At the end of the trawl net a fish pump is installed with its suction side turned towards the trawl net and its pressure side connected to a fish duct hose. In the course of trawl fishing the catch is directed towards the trawl net and gradually pumped into the fish duct hose for delivery onboard a fishing trawler. With the help of a supply hose the fish pump is connected to an electric power supply device providing for the pump actuation. Before the fish pump on the suction side a devise is positioned providing for removal of nuisance bycatch and foreign bodies from the flow transported. The device includes a trawl net for the catch at the end whereof fish duct hose is attached for delivery onboard a fishing trawler. The trawl net end is designed as an open tunnel composed of trawl nets. The tunnel has an inlet turned towards the trawl net and an outlet leading outside the trawl net. In the centre of the tunnel composed of trawl nets a fish pump is installed ith its suction side turned towards the trawl net. The fish pump pressure side is connected to a fish duct hose. The fish pump is installed at a distance from the walls of the tunnel composed of trawl nets. On board the fishing trawler an electric power supply device is installed connected to the fishing trawler via a supply hose.

EFFECT: proposed design and technology enables continuous delivery of the catch from the trawl net onboard the tow ship.

9 cl, 5 dwg