51results about How to "Reduce fishing costs" patented technology

The invention provides a symbiotic natural-enemy-preventing green stereoscopic planting and culturing method for paddy rice and lobsters. The method comprises the following steps: (A) carrying out field preparation: excavating interpenetrating trenches around a rice field, and laying limiting frames in the trenches, wherein the limiting frames are divided into a plurality of different functional areas; (B) injecting water into the trenches, and separately planting a variety of aquatic crops in the functional areas; (C) sowing paddy rice seedlings in the rice field; (D) adding juvenile lobsters of a first season; (E) carrying out a field management stage, of which a main job is to add a feed for the juvenile lobsters, carry out water surface management and complete the fishing of adult lobsters of the first season and adding of juvenile lobsters of a second season in good time; and (F) carrying out paddy rice harvesting, and fishing adult lobsters of the second season. According to the method, the symbiotic growth of the paddy rice, the lobsters and the aquatic crops can be achieved, and a primary environment is simulated; a green stereoscopic protective screen can be created so as to keep away natural enemies of the juvenile lobsters; and paddy rice insect pests can be controlled through biological means so as to reduce pesticide application, and aquatic ornamental crops and aquatic economic crops can be planted simultaneously so as to achieve yield increase and income increase.

The invention discloses a seaborne method for safely preserving aquatic products. The method comprises the steps that refrigerating is conducted on anti-freeze fluid by using a ship-borne refrigerating system, the anti-freeze fluid is taken as a total cold source, heat exchange is directly or indirectly conducted on captured catches, and the central temperature of fish bodies is rapidly reduced toachieve rapid cooling to reduce the activity of endogenous enzymes and inhibit the propagation of microorganisms; the antifreeze liquid comprises, by mass, 15-30% of edible alcohol, 10-30% of propylene glycol, 2-15% propanetriol, 1-10% of calcium chloride, 3-10% of sodium chloride, 0.1-0.15% of amino acid, 0.01-0.3% of euphausia superba protolysate, 0.005-0.5% surface active agent and the balanceof water. By means of the method, ship-borne large-scale operation can be effectively adapted, the energy consumption is low, the cost is low, ammonia and fluoride evaporation does not exist, the method is green and safe, and the quality of preserved aquatic products is good.

The invention relates to a novel aquatic animal driving machine; an electromagnet is mounted at the upper part of a machine frame; a vibrating disc, a trip lever and springs are arranged in the machine frame; the trip lever is connected with a sucking disc; one ends of the springs are connected with the sucking disc; the other ends of the springs are fixed on the machine frame; and a touch switchis mounted on the electromagnet. The device has a simple and compact structure, can give out strong sound waves and vibration waves and can effectively drive all aquatic animals in shallow water within the range of an effective radius to the preset water area; the device is adopted to drive fish, and no mechanical trauma to fish is resulted in; compared with netting gears for driving fish, the novel aquatic animal driving machine has the characteristics of being convenient to use and being durable, is time-saving and labor-saving and reduces fishing cost.

The invention relates to a lamplight deepwater net foil fishing device which comprises a barrier net of which the net surface is arranged in the left-right vertical direction; and a standing net cage body is arranged on each of the two sides of the middle part of the barrier net. Each standing net cage body comprises a left side wall net, a right side wall net, a cover net, a bottom net and a rear wall net, wherein an upper line of the left side wall net, which is provided with a plurality of floaters, is connected with the left side line of the cover net; a lower line of the left side wall net, which is provided with a plurality of pendants, is connected with a left side line of the bottom net; an upper line of the right side wall net, which is provided with a plurality of floaters, is connected with a right side line of the cover net; a lower line of the right side wall net, which is provided with a plurality of pendants, is connected with a right side line of the bottom net; each rear wall net is positioned on one side of the standing net cage body, which is far away from the barrier net; an upper line of the rear wall net is connected with a rear side line of the cover net; and a lower line of the rear wall net is connected with a rear side line of the bottom net. The invention aims to provide the lamplight deepwater net foil fishing device which can lower the labor intensity of staff and production cost, guarantees safety production, improves fishing yield, can catch fish in various water levels, and has obvious economic benefits.

The invention provides a sea cucumber capturing device and belongs to the technical field of marine fishing equipment. The sea cucumber capturing device comprises an upper clamping plate, a hose clamp, a strong suction pipe, a rotary pin roll, ventilating holes, square grooves, control end interfaces and a lower clamping plate. The sea cucumber capturing device is characterized in that the ventilating holes are formed in the side end of the upper clamping plate; the strong suction pipe is connected to the upper clamping plate via the hose clamp; the square groove is formed in the inner side of the upper clamping plate and cooperated with the square groove formed in the lower clamping plate; the upper clamping plate and the lower clamping plate are connected via the rotary pin roll; and the control end interfaces are arranged on the tail parts of the upper and lower clamping plates. By the use of the sea cucumber capturing device, simple and high-efficient capturing process can be achieved, capturing cost can be lowered and labor force can be freed.

The invention provides a leech catching method. According to the technical scheme, the leech catching method comprises the following steps of 1, adjusting the water depth of a leech cultivation pool so that the water level of the leech cultivation pool is controlled at 0.3-0.5 meters; 2, clearing away the float grass and different floating sundries in a leech cultivation water area; 3, uniformly splashing oxygen consumption microbes with a certain solubility in a leech cultivation water body; 4, covering a layer of black plastic film or placing a foam floating plate on the water surface of the leech cultivation water body; and 5, manually collecting leeches which are adsorbed on the pool walls of the periphery of the cultivation water body, the covered plastic film or the foam floating plate by utilizing a microcheiria brail. Through adopting the leech catching method provided by the invention, most of the leeches in the cultivation water body can be caught once, thus the leech catching efficiency is greatly improved, the cost of catching is reduced, and the cultivation economic benefits are improved.

The invention relates to a fishing net used braided rope, in particular to a fishing net braided rope with discontinuous cement cores positioned part by part in the sandwich of the fishing net rope. A long braided rope is formed by uniformly winding the outer surfaces of the independent cement cores with braided wires part by part and enveloping the cement cores uniformly and tightly with the braided wires. The production of the discontinuous cement core fishing net braided rope is fully mechanized, and has high speed, high efficiency and low cost. Furthermore, the metal core is replaced withthe common cement core, which greatly reduces the fishing net cost by about 20 times, greatly lightens the economic burden of fishers and reduces the fishing cost.

The invention belongs to the technical field of an angling tool, in particular relates to an angling case, can solve the problem that the angling case in the prior art cannot be used conveniently and durably. The angling case includes an inner case, an outer case, and a case cover; and is characterized in that a fishing-rod bracket is arranged between the inner case and the outer case. The fishing-rod bracket includes a hollow structure section, and a telescopic section which can be inserted in the hollow structure section; a plurality of inserting slots are arranged on the front and the rearof the outer case body; a plurality of inserting pieces are arranged suitably in the inserting pieces; the case cover includes an upper case cover and a lower case cover; the upper case cover is arranged on the case body through a rotatable shaft, a positioning heave is arranged on the side edge on one side of the rotatable shaft of the upper case cover; and the lower case cover is movably arranged on the upside of the inner case. Compared with the prior art, the invention has the following advantages that the practicability is especially strong, the invention can solve all the problems occurring when in angling fish and can lower the fishing cost, the service life is long, and the use is convenient.