Fishing in winter 1. Pay attention to removing fish pond debris before fishing: In order to fish safely in winter, it is necessary to remove obstacles and debris in fish ponds, such as stumps, branches, barbed wire and white pollutants. Second, it is suitable for ponds. Drainage and irrigation of fish ponds should be done well before fishing; If the water level in the fish pond is too deep to pull the net, the water level can be reduced to 1- 1.5 m, but the water level should be raised to above 2.5 m immediately after fishing, so as to raise the water level and keep warm, so that the substandard commercial fish can survive the winter safely and make profits continuously in the coming year. Third, when fishing, you should pay attention to getting off the net lightly and getting on the net quickly: remember to arrange the net first before getting off the net, and then gently put the bottom net, net coat and floating net into the water along the pond, and pull the net from both sides at the same time. When pulling the net, it should move slowly in the front 1/3- 1/2 of the fish pond water surface. Avoid fish swimming, jumping and colliding prematurely in the pond. When pulling the net to the lower half of the pool surface, quickly draw the net to reduce the net loss and escape of the fish. Fourth, after fishing, parent fish and small fish that do not meet the specifications of commercial fish should be selected, soaked in 3-4% salt solution for 10 minute for disinfection and disease prevention, and then returned to the pond for reproduction and vigorous growth in the next year. 5. Don't fish for several days in order to make more money: due to the low water temperature in winter, the metabolism of fish is slow and the resistance is poor. If you drag the fish you haven't caught for a long time repeatedly, the wound will be difficult to heal, allowing bacteria such as water mold to take advantage of it, leading to illness and reduced production in the next year.