95 results about "Fish stocking" patented technology

A method of gathering, analyzing, and reporting data about commercial fish stocks and fisheries. Under this method, individual commercial fishermen use a device specific to the type of fishing being done to record the number of fish brought aboard, the number kept or released, the reason for release, the date, time, and location of the catch, and the fishery conditions, such as water temperature, depth, and salinity at the time that fish are brought aboard the fishing vessel. The individual fishermen transfer the data, typically via telephone link, to a central data repository, or to a receiving station when the data is transferred to the central data repository at a later time. The data is encrypted during transfer and placed in fisherman files, each fisherman having his own, restricted-access file. Data from all individual fishermen, as well as from other sources, are placed in a composite data pool to be used as source data for a general fishery database on fishstocks and fisheries. This data can be stripped of data that would identify a particular fisherman as the source, to preserve fishing secrets. Confidential reports can be generated from a fisherman file and delivered to the individual fisherman who is the source of that data. Reports for regulatory agencies can also be generated from the data in the fisherman file. The fishery database provides a unit for regulatory agencies, fisheries managers, and fish research institutions to analyze, monitor, and report on the development of fishstocks and fisheries.

The invention discloses an artificial breeding method for siganus oramin. Siganus canaliculatus and Siganus fuscesens are common fish stocks of Siganus, the physiological characters, reproductive habits and the breeding methods of the Siganus canaliculatus and Sigauns fuscesens are more similar, the problems that the source and domestication are difficult, newly hatched individuals are small in body size, the death rate caused by strong irritability of larva is high, a systematic artificial breeding technique is in shortage, the breeding offspring seeds are mainly from natural seedlings captured from ocean, and the like exist in the artificial breeding process. The artificial breeding method adopts the technical measures of parent fish culturing, cultivation, artificial spawning and incubation, larva cultivation pool preparation, cultivation water quality conditioning, staged bait feeding and juvenile fish transportation, so that the industrialization production of parent fish supply and seedling culture is realized, and the technical problems of artificial spawning and incubation of parent fish, selection and enrichment of larvae bait, water quality regulation and control, larva transportation and the like in the artificial breeding process of Siganus canaliculatus and Siganus fuscesens are systemically solved. The spawning rate of the cultivated parent fish can reach more than 65 percent, the average spawning fertility rate can reach more than 85 percent, and the survival rate of artificial breeding is 10.7 percent-27 percent.

The invention provides a real-time fish stock monitoring and fish amount estimating system based on a wireless communication network, which mainly comprises an underwater acoustic transducer, a fish finder processor and a micro-processing unit, wherein the micro-processing unit detects echo reflection signals of a fish stock and extracts an average value of the rear echo reflection strength within a period of time in a specific water depth range; and fish stock mapping information in an echo reflection mapping graph formed by echo signals is extracted, and remote transmission and display of fish stock information are realized. The system can also be used for predicating the fishing yield besides displaying fish finder images in real time. The system provided by the invention can be applied to a plurality of fields such as real-time monitoring for fixed net fishery and the sea net cage breeding industry, observation of artificial reef fish-gathering effects, fish stock detection under an artificial fish-gathering device in tuna seine purse fishery and the like, and has very important significance for improving the production efficiency of marine fishery.

The invention discloses an integrated deepwater underwater transducer array which is applied to underwater ultrasonic detection of the position and shape of a trawl net of a distant water trawler. The integrated deepwater underwater transducer array can realize forward, vertical and annular underwater ultrasonic detection and detect the water depth and temperature of seawater in the position by combining and integrating three transducer arrays in different frequencies and performances and pressure and temperature sensors into a whole. A forward scanning detection array of the transducer arrays can detect information of a net plate of the front trawler and a fish stock, the vertical transducer array can detect targets upward and downward and prevent bottom-touching damages of the trawl net, an annular detection array can perform scanning detection on the shape of the net port of the trawl net, and the pressure sensor and the temperature sensor are used for measuring the depth and temperature of the seawater in the position at which the transducer array is located. The integrated deepwater underwater transducer array disclosed by the invention has the characteristics of high degree of integration and adaptability to large water depth for use.

The invention relates to the technical field of sonic wave fish driving and aims to provide an underwater net cage multi-beam fish driving monitoring system and an underwater net cage multi-beam fish driving monitoring method. The monitoring system comprises an underwater net cage, an underwater monitoring device and a data processing device, wherein the underwater monitoring device comprises a phased array transducer array and a high-frequency sonic wave oscillation circuit, which are arranged outside of the net cage; the data processing device comprises a data processing module, a first wireless transmission module, a computer control center and a second wireless transmission module, wherein the data processing module and the first wireless transmission module are distributed around the net cage, the computer control center is placed on a bank and the second wireless transmission module is connected with the computer control center; and the phased array transducer array and the high-frequency sonic wave oscillation circuit are both connected with the data processing module, and the data processing module, the first wireless transmission module, the second wireless transmission module and the computer control center are connected in sequence. The system and the method can determine the accurate position of the breakage of a net and can effectively prevent the fish stock for escaping from the net.

The invention discloses a method for determining mixing optimizing of an artificial fish stock and a particle swarm. The method comprises the step of initializing the artificial fish stock and the particle swarm; the step of calculating the fitness function values of all individuals; the step of judging whether fitness values of all the individuals of the two stocks meet the boundary conditions or not, wherein if not, the values are updated again until the fitness values of all the individuals meet the boundary conditions; the step of executing the corresponding algorithms of the two stocks to obtain new stocks; the step of serving the individual with the minimum fitness values of the two stocks as the optimal solution to be posted on a bulletin board Best; the step of selecting 10 percent of the individuals with the poor fitness in the two stocks to carry out jump and update the values; the step of circularly updating Best on the bulletin board until Best is smaller than the limit of error. The method has the advantages of being high convergence rate and solving precision.

The invention discloses a culture method of barbus capito. The method comprises the following steps that barbus capito in rivers, lakes, reservoirs and other natural water is selected, or artificially cultured adult barbus capito is selected as parent fishes; a culture pond, the parent fish stocking number, the stocking mode and the culture and feeding mode are selected, and management is enhanced; the parent fishes are subjected to artificial spawning induction; artificial fertilization is carried out; artificial incubation is carried out; fry rearing is carried out; fingerling culture is carried out. Culture and screening of the parent fishes, the odinagogue variety, the concentration ratio, the injection mode, incubation conditions and other conditions are optimized, and the spawning induction rate, fertilization rate and incubation rate of the cultured barbus capito all reach 90% or above.

The invention relates to a fish feeding device. The fish feeding device comprises a support body, a feed bin, a throwing component and a power input component, wherein the throwing component is communicated with the feed bin, and the power input component is used for driving a rotary feed outlet of the throwing component to rotate; a directional disc is mounted in the rotary feed outlet. The fish feeding device is characterized by further comprising a floating cup which is mounted at the bottom of the support body, wherein a bracket is further mounted at the bottom of the floating cup, a fish detecting sonar which is used for detecting fish stocks is mounted on the bottom face of the bracket and transmits obtained detection signals into a controller, and the controller feeds back output signals to a motor of the power input component. According to the device, a structural basis is provided for flexible feeding.

The invention relates to a rice-fish comprehensive planting and breeding technical method. The method is a production method of cultivating and planting ratoon rice after harvesting of single-season rice and continuing fish stocking in the rice field by the utilization of the ecological principle of rice fields. According the ratoon rice, after ripening of the single-season rice, about upper 2/3 parts of rice plants are left, ears of rice are picked and the lower 1/3 part of the plants and roots is left; after fertilization and cultivation, the second season rice grows out. Breeding of fish inthe rice field runs through the whole process. Melons and vegetables are planted in the ridge, thus creating the three-dimensional circulating rice-fish comprehensive planting and breeding model of ''single-season rice+ ratoon rice + fish'', namely the ''single-season rice+ ratoon rice + fish'' model. The technical method of the invention can be promoted and applied in rice fields in mountainousareas; the bred Sanjiang rice field carp contains rich selenium, which is very beneficial to the human body; and good economic, social and ecological benefits can be obtained.

The invention discloses a method for tridimensionally culturing paddy fields, which comprises steps: 1 dressing of paddy fields; 2 feeding of aquatic animals and plants; 3 planting of paddies; 4 fish stocking; 5 managing in daily; and 6 recovering of paddies and fish. The method for tridimensionally culturing paddy fields reasonably adopts a ecological aquaculture mode of rice-fishculture, greatly reduces usage amount of pesticides and fertilizers during the period of rice planting, improves nutritional value and safety use of crops, improves yield of the rice, obviously improves planting and raising benefits, has the advantages of easy operation of culture process, low culture cost and high culture safety, and is suitable for large-area promotion.

The invention provides a rice field fish culture method, and belongs to the field of rice field fish culture. The rice field fish culture method includes the following concrete steps that a field good in water quality and free of contamination is selected, wherein a plowing layer of the field is thick and watertight; a fish ditch surrounding the field and a cross-shaped center fish ditch are dug in the field, a big fish pit is dug in the center fish ditch, a ridge is reinforced and heightened, a water inlet and a water outlet are dug, and a fish corral is arranged; rice seedlings are planted at reasonable density; fry of reasonable specification are put at reasonable density; artificial bait is put, pesticide and chemical fertilizer are used, the frequency and amount of water change of the rice field are managed; the water level change condition, food intake condition of fish and healthy condition of the rice seedlings are checked daily, and the emergency circumstance handling pre-arranged plan is made to respond to unforeseen circumstances conveniently in time and reduce property damage; the rice planting density and fish stock density are controlled reasonably, the rice-fish symbiotic relationship is set up artificially, so that resources are configured and used reasonably, and the rice yield and fish harvest yield are increased.

The invention discloses a fishing capsule containing a fish luring agent and a processing method of the fishing capsule. A capsule shell capable of being rapidly disintegrated in water is formed by sleeving a left capsule shell and a right capsule shell. A strip-shaped notch is axially formed in the open end of the upper end of the right capsule shell. Multiple through holes are formed in the capsule shell. The capsule shell is prepared from, by weight, 4-8 parts of sodium carboxymethyl starch, 90-95 parts of ground calcium carbonate, 1-3 parts of musk powder, a proper amount of effervescent disintegrant and a proper amount of color master batch. The effervescent disintegrant is a mixture prepared from sodium bicarbonate and citric acid. The components are weighed according to weight parts and mixed and stirred to be uniform, clear water is added, the mixture is stirred and dissolved evenly, and the capsule shell is prepared. The situation that people are hurt by fishing hooks and bait disengages can be avoided, and the fishing capsule can be rapidly disintegrated in the water and achieves an obvious food calling function on fish stocks. The invention further provides a method for processing the capsule shell with the functions.

The invention relates to a high-efficient harmless fishing device for a fish tank. The high-efficient harmless fishing device comprises a driving mechanism, a fish passage mechanism and a fish collecting mechanism, wherein, in the driving mechanism, a fishing net is laid in a first rectangular frame and a second rectangular frame, one end of the first rectangular frame is articulated with one end of the second rectangular frame, and a round hole with the diameter which is consistent with the height of the second rectangular frame is formed on the fishing net in the second rectangular frame; in the fish passage mechanism, the diameter of a big port part of a conical cylinder is consistent with that of the round hole in the driving mechanism, and the diameter of a small port part of the conical cylinder is slightly larger than the average body height of a fish stock in the fish tank; and the fish collecting mechanism is of a mesh bag with one closed end, the open end of the mesh bag is matched with the big port part of the conical cylinder, and a lifting rope is arranged at the open end of the mesh bag by penetration. The high-efficient harmless fishing device for the fish tank, provided by the invention, can overcome the defects of the existing fishing way from the fish tank, realize fast-speed and high-efficient fishing and prevent harming fish during fishing, and further has extensive using value.

The invention discloses a high-yield freshwater fish culture method. The culture method comprises the steps of pond cleaning and disinfection of a culture pond, preparation before fish stocking, fry prelibation, fry stocking, feeding, pest control and prevention, water quality control and humidity fishing. According to the high-yield freshwater fish culture method, through the reasonable disinfection of the culture pond and the reasonable fertilization and water injection before fish stocking, the method provides an ecological environment with a safe and stable earlier stage for fry, so that the culture method is green and environmental protection, the intensification is higher, the fish production is greatly increased, the fish with different feeding habits is fed with the collocation of plankton and fodder without antibiotic, the pollution is less, the safety is high, and through the pest management, the water quality management and the modest fishing, the healthy growth and the delicious meat quality of the freshwater fish can be guaranteed effectively.

The invention discloses a feeding device and method for individualized aquaculture and relates to the field of aquaculture. The feeding device comprises a feeding machine which is arranged on the lakesurface through a bracket, the lower end of the feeding machine is immersed in the water, and the feeding machine includes a central feeding tube, a camera head, a feeder, an ultrasonic unit, a dataprocessing unit, a storage unit and a weight sensor. By the arrangement, individualized culture of fish stocks can be realized, corresponding species of fish materials are automatically matched according to the species of the fish stocks, the size of the fish stocks and the number of the fish stocks, the quantity of the fish materials to be fed is estimated automatically, automatic feeding is realized, and convenience in aquaculture is greatly improved.

The invention relates to a rice-carp symbiotic breeding method, which is characterized by comprising the following steps: (1) selection and treatment of a paddy field: high ridges are built on the four sides of a paddy field, inner ditches are dug between seedbeds, the ridges are provided with a water inlet and a water outlet, a fish gathering pond is arranged in the paddy field, and sound sonar fish driving devices are evenly arranged on the ridges; (2) transplanting of rice seedlings and throwing of fish fries into the paddy field: base fertilizer is applied to the paddy field, the paddy field is covered with a thin layer of soil, quicklime is sprinkled for disinfection, and in a week after disinfection, the paddy field is irrigated from the water inlet, and rice seedlings are transplanted; and (3) prevention and control of rice diseases and pests and fish diseases: the sound sonar fish driving devices on the ridges are opened, feed is thrown into the fish gathering pond, the water outlet is opened to ensure that all fish are driven into the fish gathering pond, and then, pesticide is sprayed onto the rice seedlings or medicine is used in the fish gathering pond. The beneficial effects are as follows: the rice-carp symbiotic breeding method has the advantages of high utilization rate of resources, reasonable planting, pollution reduction and mutually beneficial coexistence; and different medicines are used for rice and fish and are used separately, and the yield and quality of rice and fish stocks are improved.

The invention discloses a large-water-surface fishing method. The large-water-surface fishing method includes the following specific steps that a netting gear is manufactured, wherein a block is manufactured, and partition nets are manufactured; the block is landed to the top end of one side of an aquaculture water area through a bamboo pole which is 100 cm in thickness and a steel pipe, the partition nets are landed into water in the direction perpendicular to the direction of the block through a bamboo pole which is 100 cm in thickness and a steel pipe, a block is prepared, two motor boats enter an isolation area aside, the motor boats carrying pulse steel wires are attached to the partition nets to slowly dispel fish stocks to swim forwards from the edge of the block, after the fish stocks in the isolation area are dispelled, the prepared block is perpendicular to the partition nets, the motor boats only enter a second partition area and dispel the fish stocks in the same way, when the fish stocks in all the partition areas are dispelled and all entrances are closed, the fish stocks are driven into a purse net area after being fished on the large water surface, the fish stocks enter net cages of the purse net area to be temporarily bred, and fish in the net cages are placed in a fish surrounding area according to the quantity of sale to be sold. The large-water-surface fishing method has the advantages of being good in fishing effect and the like.

The invention discloses a rice, lotus, fish and shrimp polyculturing method. The rice, lotus, fish and shrimp polyculturing method comprises the following steps of (1) base fertilizer application, (2) lotus planting, (3) rice planting and shrimp stocking, (4) fish stocking, (5) bait feeding and (6) topdressing. The rice, lotus, fish and shrimp polyculturing method makes full use of the growth requirement required by lotus, fish and shrimp; shrimp can loosen soil during crawling and fish is prone to moving in mud to search for food, so that during polyculturing, the shrimp and the fish can help form viscous and loosened soil and mud, which are suitable for growth of the lotus; meanwhile, the lotus can transmit air via pores in lotus root to meet the requirements on respiration during growth and supplement sufficient oxygen content for the fish and the shrimp; fish and shrimp culturing and lotus growth supplement each other; by matching with acid fertilizer in soil, which is rich in organic matters, the lotus can be stout and strong in rhizome, thick in flesh, strong in shape and high in quality; by planting floating rice inside a lotus pond, the lotus pond can be made full use of.

The invention discloses a method and a device for increasing oxygen in a pond, which are characterized in that an inflation oxygen increasing method is used and a light pest attracting device is arranged at an air suction port of an inflation oxygen increasing device, so that attracted pests are sucked into water and fish stocks attracted by the light pest attracting device eat and kill the pests in the water, and thus, when the oxygen increasing work is completed, the effects of killing the pests and feeding fishes are achieved. According to the invention, various ecological benefits can be realized when the oxygen increasing work of the pond is completed.

The invention discloses a submersible fish stock trapping device and method, wherein the submersible fish stock trapping device comprises a central control unit, as well as an upward floating and downward submerging device, a fish catching device, a power propeller propulsion system and a fish stock detection module which are connected with the central control unit; the fish catching device comprises a hollow frame body provided with a door on one side; an inductor is arranged in the hollow frame body; and the central control unit comprises a wireless signal receiving circuit. The submersible fish stock trapping device disclosed by the invention has the advantages of simple and novel structure, simplicity and convenience in control and strong intelligence, the central control unit can complete the control of upward floating and downward submerging of the whole device and can control the fish catching device to catch fishes, the wireless receiving circuit is arranged on the central control unit, remote control can be realized, and the use is convenient; and compared with traditional fishing, the fishing efficiency is improved, the intelligence is strong, and the detection of a whole fish stock and the fish catching process can be completed automatically.

The present invention discloses a fish feed added with a fish feed traditional Chinese medicine additive and a preparation method thereof, the fish feed comprises the following raw materials by weight: 3-24.3 parts of vinasse, 3.8-38 parts of egg yolk, 4.3-41 parts of soybean powder, 2.2-48 parts of fish bone meal, 0.2-0.8 part of corn flour, 0.000004-0.000006 part of acalypha australis, 0.000004-0.000006 part of wormwood, 0.000004-0.000006 part of plantain, 0.000004-0.000006 part of verbena, 0.000004-0.000006 part of herba andrographitis, 0.000004-0.000006 part of purple perilla, 0.000004-0.000006 part of castor, 0.000004-0.000006 part of Chinese gall and 0.000004-0.000006 part of Chinaberry seed, and the fish feed can not only prevent the occurrence of fish stock diseases, but also can increase the fish growth rate.