Fisheries Flood Remediation Technology Measures
Post-flood inspection and rehabilitation of fishery production facilities. After the flood, the farmers should check whether the fishery production facilities such as ponds, Shantang Reservoir, cages, and fences are damaged according to their own conditions. For the bursting of fish ponds that have been destroyed by flooding, the crushing of the breaches of the fish ponds and purse seine should be blocked in time to minimize the escape of cultured aquatic products; for aquaculture water bodies with serious destruction of production facilities, the number of surplus cultured aquatic products in the aquaculture waters must be determined first. , and then take appropriate measures to prevent the escape of surplus farmed fish, shrimp, and crabs (such as blocking the aquaculture facilities from being destroyed by the 2nd to 3rd floors), and further repairing the destroyed fishery production facilities after the floodwaters recede. Net cages affected by floods should be promptly repaired, restored, and resettled in safe waters to replace fish species and restore fishery production. Ponds and ponds in flood ponds, gates in large water surface, and blockages at the block should be inspected carefully to prevent the collapse.
1. If the proportion of farmed fish escaped from ponds and Shantang Reservoir is less than 50%, it may be appropriate to add catfish, whitefish, grass carp and summer shrimp, and lobster. Green shrimp or lobsters do not exceed 1,000 to 2,000 square feet per 667 square meters (1 acre); specifications are 3 to 4 centimeters; salmon does not exceed 100 tails per 667 square meters, and specifications are 8 to 10 centimeters; whitefish and grass carp have 667 square meters per square meter. 200~300 tails, size 8~10cm.
2. Ponds and ponds that have escaped more than 50% of the farmed fish should consider ponds. Two ponds of the farmed fish into one of the pond culture; another pond re-introduced herring, grass carp, carp, carp and other fish species, fish species specifications 8 to 10 cm, per 667 square meters of the amount of control In the 1000~1500 tails, production can be arranged and listed when the market price of fish is high.
(3) For those with less than 50% escape from the net, the amount of escaping crabs, squid, and green prawn may be properly added. There shall be no more than 500 pieces per 667 square meters, and the size shall be 3-4 centimeters; ~20 tails. Specifications 8 to 10 cm or more.
4. If the escape rate of the crabgrass is greater than 50%, the crabs after the fifth period of crab crabs should be supplemented with 200-300 pieces per 667 square meters, and fresh shrimp and squid should be added. Green prawns do not exceed 500 per 667 square meters, and the size is 3 to 4 centimeters; catfish have 10 to 20 tails per 667 square meters, and specifications are 8 to 10 centimeters or more.
5. For aquaculture bodies where the facilities are destroyed by floods and all fish escape, fishery production can be rearranged. The pond can be stocked with herring, grass carp, catfish, and squid, and put 1,000 to 1,500 pigs per 667 square meters. Special aquatic products can also be stocked.
6. Grasp the cultivation of autumn and autumn seedlings. After the disasters occurred in the ponds, cages, and fence aquaculture areas, a large part of the aquaculture products could not continue to be cultured. In order to prevent the aquaculture water from being wasted, the fine weather after the disaster was taken, the broodstock breeding was well done, and the autumn crops were cultivated. Quickening can not only make up for losses, but also solve the problem of seedling gaps in Hunchun.
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