Fishing events in South China in November and December

In November and December, the weather gradually turns cool, the water temperature drops, and the breeding objects have grown into commodity specifications, which meet the requirements of listing. Fishery production should focus on the initial capture and listing of breeding objects and production in the coming year.

Centering on the center of starting fishing and listing of breeding objects, fish, shrimp, and crab turtles that have reached the commodity specifications should be reasonably caught and arranged to be listed on the market, some for the current market and some for New Year's Day, the Spring Festival and the spring shortage next year. Fish, shrimp, crabs and soft-shelled turtles that are on the market during festivals and spring shortages should be temporarily raised in ponds that meet the market specifications after fishing in November, and feed in appropriate amounts regularly to keep the water quality fresh, promote them to keep fat, and survive the winter safely, so as to ensure the festivals @ # @ 136 fish stocks; those that do not meet the specifications are reserved for next year's fish species.

Clear the pond, renovate the ridge and slope of the pond. After the fish, shrimp and crab are caught in the pond, immediately clear the silt in the pond, renovate the ridge, slope and drainage system of the pond, and dry the pond for more than 15 days. Remove too much silt from the bottom of the pond so that the silt is no more than 10 cm thick to prevent excessive accumulation of organic matter and affect aquaculture production next year. Strengthen and tamp the ridge and slope of the pond, dredge the drainage system, and create good environmental conditions for stocking in winter.

Winter release can create conditions for fish and shrimp seedlings to adapt to the breeding environment and grow early, and increase production, which should be actively applied in accordance with local conditions. After commercial fish, shrimp, crab and soft-shelled turtle are caught, according to the demand and change of aquatic products market, the main culture varieties and matching varieties are selected, and the stocking specifications and quantity are determined for winter release. For those who cultivate green shrimp for two seasons, the shrimp species with specifications of about 1600 / kg are selected for stocking, with 40, 000 to 50, 000 per mu. Before winter release, the pond mouth should be renovated to meet the requirements of large water depth of the pond, thoroughly clean the pond and disinfect it, and improve the water quality. Choose strong physique, neat specifications, disease-free, injury-free, strong vitality of the fish stocking, a full release. Feed some feed timely and appropriately after stocking to ensure safe overwintering. Plant ryegrass and other forage grasses to ensure adequate green feed for grass carp from March to April next year.

Conventional parent fish should be cultured in a special pond, and the early intensive cultivation will begin in December to make them fat and fat, promote gonadal development, and ensure smooth spawning next year.

It is worth noting that the warm winter phenomenon in recent years has brought adverse factors to the normal agriculture and fishery production, so we should do a thorough disinfection of the pond and the management of the overwintering pond, and take disease prevention measures ahead of time.