Continuous trawl fishing method
A technology of trawl nets and mesh bags, which is applied in fishing nets, fishing, applications, etc., can solve the problems of fast death of catches, low quality, and high work intensity of personnel, and achieve the goals of reducing work intensity, improving quality, and improving work efficiency Effect
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Embodiment 1
[0054] A, use 1440m * 361m (228.6m) net gear 20 to catch horse mackerel, drag the net gear 20 in the waters by boat 10 to carry out trawling operation, so that the catches to be caught enter the net bag at the net gear 20 tail 21 in. During the trawling operation, firstly trawle the net at a trawling speed of 2 to 3 knots for 20 minutes, and then reduce the trawling speed to 0.5 to 1 knot.
[0055] B. Simultaneously start the winches 41 of two traction devices 40 to pull the traction section 42, and move the net bag 21 of the net gear 20 forward, and the fish suction pipe 31 of the vacuum fish suction pump installed on the boat 10 stretches into the net bag 21 and contact the catch in the net bag 21, the net bag 21 advancing distance is 180m;
[0056] Simultaneously assist positioning fish suction pipe 31 by visual probe and net level meter sensor, cooperate to manipulate winch 41 to retract traction key 42, so that the mouth of mouth of fish suction pipe 31 contacts the catc...
Embodiment 2
[0062] A, use 1632m * 444m (277.4m) net gear 20 to catch horse mackerel, carry out trawling operation by ship 10 dragging net gear 20 in waters, so that the catches to be caught enter the net pocket of net gear 20 tail 21: During the trawling operation, first trawling the net at a trawling speed of 2.5-3 knots for 30 minutes, and then reducing the trawling speed to 1 knot.
[0063] B. Simultaneously start the winches 41 of two traction devices 40 to pull the traction section 42, so that the net bag 21 of the net gear 20 is pulled forward, and the fish suction pipe 31 of the vacuum fish suction pump installed on the boat 10 is stretched into the net. In the bag 21 and contact the catch in the net bag 21, the net bag 21 advancing distance is 230m;
[0064] Simultaneously assist positioning fish suction pipe 31 by visual probe and net level meter sensor, cooperate to manipulate winch 41 to retract traction key 42, so that the mouth of mouth of fish suction pipe 31 contacts the ca...
Embodiment 3
[0070]A, use 1040m * 253.02m (149.4m) net gear 20 to fish horse mackerel, carry out trawling operation by boat 10 dragging net gear 20 in waters, so that the catches to be caught enter the net at the net gear 20 tail In the capsule 21; during the trawling operation, first trawling the net at a trawl speed of 3 to 5 knots for 50 minutes, and then reducing the trawl speed to 1 to 1.5 knots.
[0071] B. Simultaneously start the winches 41 of two traction devices 40 to pull the traction section 42, and move the net bag 21 of the net gear 20 forward, and the fish suction pipe 31 of the vacuum fish suction pump installed on the boat 10 stretches into the net bag 21 and contact the catch in the net bag 21, the net bag 21 advancing distance is 130m;
[0072] Simultaneously assist positioning fish suction pipe 31 by visual probe and net position meter sensor, cooperate to manipulate winch 41 to retract traction key 42, so that the mouth of mouth of fish suction pipe 31 contacts the cat...
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