Fishing should be fastidious in autumn

First, pay attention to the weather: autumn dragnet fishing must choose sunny days, cool weather, pond fish do not float around the dawn, because at this time the least impact on the fish in the pond, but also in time to supply the fresh fish caught in the morning market. Haze, muggy weather is not suitable for net fishing, so as not to cause a large number of dead fish. In addition, it is not appropriate to catch fish in ponds when they have floating heads or fish diseases.

Second, feed restriction before fishing: the oxygen consumption of fish increases after eating, and it will be frightened, jump and run away when fishing, which is easy to cause death. Therefore, stop feeding or reduce the amount of feed the day before fishing, and do not feed a large amount of concentrate in order to increase the weight of fresh fish on the market, otherwise the loss will outweigh the gain.

Third, master the method of pulling and catching: for the fishing ponds with large area and dense fish storage, it is not suitable to catch the whole pond. It is appropriate to pull and catch half of the pond or 1GP3. Because the water temperature is high, the activity of pond fish is strong, oxygen consumption is large, can not bear density, when there are too many fish in purse seine, it is most likely to cause injury and death of fish. When fishing with a net, you should be quick and careful to reduce the noise as much as possible to reduce the alarm to the fish in the pond. After encircling the fish, you should quickly and briskly return 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 avoid damage or suffocation of the small fish.

Fourth, strengthen the post-fishing management: in the pond after fishing, the activity of storing fish is intensified, the oxygen consumption is increased, and the sludge residue of the pond is stirred in the process of fishing, so that the dissolved oxygen in the pond water body decreases rapidly, which is very easy to cause anoxic floating head of fish in the pond. Therefore, it is necessary to inject new water or turn on the aerator to increase oxygen in time after pulling and catching. At the same time, the whole pool should be sprinkled with raw lime paste for sterilization and disinfection.