Living Water Community Seine Aquaculture Technology

It is a new type of aquaculture that utilizes natural baits, low investment, quick effect, no need to increase oxygen, save labor and capital, and fully utilizes natural resources in the water network area in large water surfaces such as lakes, rivers and reservoirs. One of the resources development projects. 1. Choose the normal water depth of 1.5 to 2 meters in the surrounding area, rich in aquatic grasses and plankton, and the water surface of non-water transportation can be used as a fence to aquaculture. The method is to use wood piles, bamboo and other scaffolds to support the fish net into a community, its area, shape can be adapted to local conditions, generally about 100 acres (1 mu = 667 square meters) is about a community, to facilitate management and fishing operations. 2. In the community where fingerlings are bred for fish breeding, large-size two-species fish should be stocked, and upper, middle and lower fish species should be matched, and special types of aquatic products such as pearl oysters and crabs can also be properly bred. However, it should be noted that fish species that do not have good teeth, meat, drillability, and good jumping must not be stocked in order to avoid killing and breaking nets, drilling nets, and jumping nets to escape each other and causing losses. 3. Feeding methods There are two types of feeding methods for community seine fish farming. One is bait. This method is relatively simple and is mainly applied to feeding pelleted food. If it is a powdery bait, it should be mixed with water and moistened before casting. Do not leave it too close to the fence, otherwise it will be wasted due to wave impact. The second is hanging bag. First, set up a number of feeding points in the community, insert wooden stakes or bamboo poles for hanging and hanging bait bags, and then use roving bags to hold the bait suspended on the piles, immersing them in water for 15 to 20 centimeters to allow the fish to lick slowly. food. This kind of fixed point bait feeding method is very economical and effective for live water fish farming. 4. Pay attention to anti-fence community seine fish farming, should pay special attention to prevent escape. On weekdays, special personnel are required to take care of them and often check the condition of the purse seine facilities so as to prevent the loss of nets and human losses. Before the storm or flood comes, it is necessary to do a good job of strengthening and enhancing the fence. In addition, some waterfowls (eg geese, ducks, etc.) can be stocked as alarm animals in the area to allow farmers to detect broken nets, inverted shelves and intrusion of wild animals in time. 5. In order to catch the fish in the area, the fish can not be taken as a method of dry pond fishing. Therefore, it is only possible to use fishing nets such as trawls and screens for fishing in batches. During fishing, the mesh size of the fishing tackle should be determined according to the length of time the fish is to be fed and the size of the fish body, so that catching large and small can be achieved. After catching, fish should be added in time to maintain a certain density of fish in the community. During fishing, it is also important to note that if there are fish that eat meat, teeth, and drillability, they will be captured regardless of size to prevent them from eating other fish and damaging the fence.

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