Pay attention to fishing in autumn

First, choose a good fishing time. When fishing, choose before and after dawn when it is sunny and the fish do not float their heads. At this time, fishing has the least impact on pond fish, and the fresh fish caught can be supplied to the morning market in time. When haze, muggy weather and pond fish have floating heads or fish diseases, it is not appropriate to draw nets to catch fish, so as not to cause a large number of dead fish and cause unnecessary economic losses.

Second, stop eating or feeding less before capture. Stop eating or reduce the amount of feed the day before fishing, and do not feed a large amount of concentrate to increase the weight of fresh fish on the market. Because the oxygen consumption of fish increases after they are full, they are frightened and jump and flee during fishing, which is easy to cause casualties. One or two days before the capture, the residual bait in the pond, as well as all kinds of sundries and wastes floating on the surface of the water should be eliminated.

Third, pay attention to the methods of fishing. The ponds with large area and dense fish are not suitable for fishing in the whole pond, but it is suitable to catch half pond or 1x3 pond. Therefore, the water temperature is higher, the fish activity is strong, and the oxygen consumption is high. Do not tolerate dense, surrounded by too many fish, the most likely to cause injury and death of fish. Pull the net quickly and carefully, reduce the sound as far as possible, so as not to disturb the pond fish. After encircling the fish, we should first quickly and briskly pick up the small fish in the net that have not yet reached the commodity specifications to the original pond, and then pick up the large fish on the market, so as to prevent the small fish from being injured or suffocated to death due to dense extrusion, resulting in losses.

Fourth, the management after fishing. In the pond after fishing, the fish activity intensified, the oxygen consumption increased, and the bottom sludge residue was stirred during fishing, and the organic matter at the bottom turned over, which accelerated the rate of oxidation and decomposition, and greatly increased oxygen consumption, so the dissolved oxygen in the pond water decreased rapidly, which was very easy to cause anoxic floating head of pond fish. It is necessary to inject new water in time or start an aerator to increase oxygen, and the whole pond can be sprinkled with quicklime slurry to disinfect and sterilize, improve and adjust the water quality. To ensure the safety of the fish and beware of accidents.