lobster traps floating on water use of the device

Data:2013/10/23 1:01:24

　　 lobster install traps water in the micro flow, generally will be eligible for higher survival rate than the pond, but thelobster the more intensive fish traps, once the disease has spread, it is easy. therefore, in addition to feeding and management aspects of scientific feeding, careful operation, strengthen the observation, to prevent fish injury and reduce the spread of pathogens, improve the daily management and other measures, but also effectively enhance drug prevention. before stocking fish, grass carp species to be immunized, the next box when the water with bleach 1g 100kg fully melted into the fish sterilizer 10 ~ 15min, or with salt dissolved in 2 ~ 4kg 100kg water immersion 10min or so species ; can also be used malachite green, potassium permanganate, trichlorfon and other drugs for immersion disinfection. species under the box after use bleach or copper hanging baskets, before the onset of the season came with sulfa drugs, garlic, etc. made bait feeding, combined dragnet inspection, dip the fish with drugs. detection of disease outbreaks to be the right remedy, timely treatment.

(two) lobster knowledge fish traps

lobster traps in relaying gradually developed on the basis of a scientific method of fish. it is the use of mesh assembled into a box shape, is set in a larger body of water, through the mesh for lobster traps inside and outside the water exchange, thelobster traps to form a suitable living environment running water. the use of lobster traps can be high-density culture or intensive commercial fish species. lobster traps method has mobile, flexible, simple, high yield, wide adaptability waters, in our sea, freshwater aquaculture has a broad development prospects.
a, lobster characteristics and key fish traps
(a) lobster characteristics of fish traps
1. lobster traps can take advantage of rivers, lakes, reservoirs and other natural water bodies and fish bait development.can cultivate fish, can also be cultured adult fish. especially the lack of pond regions can be set using the large water lobster cultivate fish traps in situ, in situ breeding adult fish, to improve fish survival and yield a positive role.
2. lobster traps can be intensive high-density, yield per unit area can be several times higher than the pond, a hundredfold. the reason is: lobster in fact, is the use of fish traps large water advantageous natural conditions, small water body close up comprehensive measures to achieve the high-yielding intensive. in the course of cultivation, lobster traps, the external water body constantly exchanged, taking lobster traps inside the fish fed diets of waste and residues, bringing oxygen and plankton, the lobster traps to maintain a high dissolved oxygen, and thus lobster traps inherent high-density case, we would not have oxygen and water quality deterioration, and to ensure that the lobster traps within the culture of silver carp, bighead carp continue to be required to supply food organisms. in addition, fish reared in lobster traps inside, but also avoid the dangers of biological predators, and timely detection of disease outbreaks, to ensure a higher survival rate and excellent recapture rate.
3. lobster traps with mobility, flexibility advantages, can invest in batches, and gradually develop. since feeding and management convenience, the fishing is easy to set lobster traps body of water once the environment is not appropriate, the position can be moved at any time, it is also known nomadic fishing.
(two) lobster the key fish traps
1. choose natural food rich, with a certain flow locations lobster traps.
2. appropriate choice of lobster traps structures and installations methods. including lobster traps shape, size, arrangement and at other boxes.
3. due to water system should determine the stocking of fish, size, density and polyculture ratio, in order to give full play to the water production potential.
4. really good job of feeding, fangtao, disease prevention, anti-predators such as feeding and management, in particular to maintain the lobster traps wall for cleaning, to prevent clogging, affect water exchange.
two, lobster traps of construction and equipment
　　 lobster traps of the construction and equipment of many forms, the actual selection should not escape to fish, durable, labor and material, to facilitate exchange of water, easy management principle.
(a) lobster structural traps
1. lobster traps constitute 　
by the cabinet, frame, float, sinker and fixed facilities and the like.
(1) case: a certain size by a mesh stitched splicing. currently the most common is polyethylene mesh, it has high strength, corrosion resistance, low temperature, and low price. mesh processing technology, there are four: ① hand knotted polyethylene twine mesh. advantage is flexibility, and durability. drawback is that there are nodules, easy bruising fish, materials and more, and poor treatment; ② non-extension without nodules mesh. this process produces fast, material saving, cheaper, but the lateral tension is poor, easily damaged; ③ extends without nodules mesh. its tensile strength, flexibility, light weight, compared with nodules of lobster traps and low cost 3/4; ④ polyethylene mesh warp. no section is smooth, not to hurt the fish, mesh through stereotypes no deviation, box soft, easy to suture, easy opening escape of fish, and low cost.
(2) frame: yes cabinet with hanging bracket, common bamboo, wood, steel, plastic pipe and other materials. fixed to the frame of the housing, can be kept open box, shape.
(3) float: is the lobster traps floating on water use of the device. common and hard blow molded foam float, or glass balls on the frame drum line for the float. bamboo, wood frame of the support housing, but also plays a role in the float.
(4) sinker: is to make lobster traps submerged in the water bottom of the device. generally used in ceramic sinker, can also be used stones, cement blocks, etc. conditional available diameter 2-2. 5 cm of steel, both distraction bottom net, can be used when the sinker.
also, with the anchor fixed lobster traps location, or concrete piles, bamboo pile supporting fixed lobster traps.