50 results about "Aquatic insect" patented technology

The invention discloses a method for cultivating loach larvae by arranging net cages in a pond to improve the rate of survival. The method mainly comprises the steps that firstly, the pond which is appropriate in area and water depth is selected, water is injected into the pond to clean and disinfect the pond, and palatable bait is prepared; secondly, the net cages with the total area being 10% of the area of the pond are arranged inside the pond, wherein each net cage conforms to the standard of (5-8)m*1m*0.7m, the net mesh is 60, the net cages are evenly arranged along the long edges of the pond in a multi-line and two-row mode, and the cage bottoms are close to the bottom of the pond but not make contact with the bottom mud when the net cages are fixed; thirdly, four submerged pumps are installed at the four corners of the pond, and pond circulating small-flow water is formed by adjusting the direction of a water outlet; fourthly, loach larvae are thrown into the net cages according to the demand of 2250-3000 loach larvae per square meter, the submerged pumps are started, and wheel animalcule and other palatable bait enter the net cages along water flow to be eaten by the loach larvae; fifthly, unobstructed exchanging of water inside and outside the net cages is guaranteed, and the bait is thrown into the net cages in due time to ensure adequate bait; sixthly, the loach larvae are moved out of the net cages when growing to be 2 centimeters long, the net is dragged out, aquatic insects in water are removed, then the loach larvae are moved to the pond to be bred, the bait is thrown into the pond in due time, and the loach larvae are bred to be larvae being 4 centimeters to 5 centimeters long.

A small aquatic insects counting loading machine capable of loading the small aquatic insects in terms of the invariable quantity is disclosed, comprising a bracket and a specimen jar provided on the bracket, characterized in that bottom of the uniformly-mixed jar is provided with a siphon pipe with an electromagnetic stop valve; one end of the siphon pipe is located at the bottom of the inner chamber of the specimen jar, another end with downward opening is located at between a first infrared transmitting diode and a first infrared receiving diode outside the specimen jar, the first infrared transmitting diode, the first infrared receiving diode and the stop valve are electrically connected with a single chip machine respectively. The counting loading machine uses the siphon pipe to guide out the uniformly-distributed small aquatic insects to get through the infrared light, in which case, the machine can count according to the times of light shading. The small aquatic insects counting loading machine has rapid loading speed, accurate count and high efficiency.

The present invention belongs to the field of river regulation and river habitat restoring technology, and is especially one kind of porous habitat type ecological bank protecting block. The ecological bank protecting block has the structure including hollow concrete column, holes, filler, plant growing hole and bottom fish hole, and bayonet structure for interlocking. The present invention has the positive effect of restoring river habitat, and is suitable for young fish, aquatic plant and aquatic insect to grow.

The control of aquatic insects can be accomplished by the careful application of an insect control unit into a treatment site in a treatment locus. A careful application of a defined amount of pest control in a pest control unit can effectively control flying insects emerging from aquatic environments with reduced use of control agents and reduced environmental impact.

The invention relates to an artificial impregnation, incubation and domestication method of Sinocyclocheilus tingi, belonging to the technical field of fish product cultivation. The method adopts wet process impregnation and comprises the following steps: placing a palm sheet to which germ cells are clung in 50ppm Saprolegnia Ling aqueous solution for sterilizing for 20min, taking out and suspending the palm sheet in an incubation pool with the area of 20m<2> for incubation; performing oxygenation by an oxygen pump, wherein the water temperature is 18-20 DEG C, the pH value is 7.5-8.0m, and the dissolved oxygen concentration in water is 6.5-8.0mg/L; sterilizing once every 24h by the same method, continuing to sterilize for 3 days, and finishing incubation by spending 144h; and retaining the domestication water level to be 1.0-1.2m, the water temperature to be 16-21 DEG C and the dissolved oxygen concentration in water to be 6.5-8.0mg/L, covering 2/3 of a pool surface by a shading mesh for shading, using a 40-mesh screen window mesh to intercept and prevent escaping, feeding aquatic insects and Tubificidae in the first 7 days, feeding powdered fodder which is doped with 10% of fish meal and has higher protein content for 15 days in a food conversion period, and feeding particle bait in which the crude protein content is 34% in a formative period. The invention has the advantages of low cost, simple and convenient operation, favorable growth of the Sinocyclocheilus tingi, high survival rate more than 95%, and capability of being used in large-scaled production.

The invention relates to a water treatment system and a treatment method for settling algae pond-phycomycetes symbiotic ecological plate slot-biofilter. The water treatment system is provided with thesettling algae pond, the phycomycetes symbiotic ecological plate slot and the biofilter successively according to the water inflow direction. Silkweed grows in the settling algae pond in a floating manner for removing element such as nitrogen and phosphorus in sewage. In addition, the settling algae pond also can remove impurities such as particulates and suspended solids in water through settlement action. The phycomycetes symbiotic ecological plate slot is naturally formed by a shallow and long pond with silkweed. Algae growing in a floating manner, such as microorganisms and aquatic insects, and organic matters and part of nitrogen and phosphorus in a water body are removed primarily. Aerobiotic/anaerobic microorganisms grow on a film in a biofilter, so that organic matters in water can be further removed, and the impurities are filtered.

The invention discloses a nursing breeding method for young loaches. The nursing breeding method includes the steps that 1, a proper young loach breeding pond is selected, water entering and water draining are convenient, and the area should range from 3 mu to 5 mu; 2, the loach breeding pond is divided into regions, wherein the area of the nursing region accounts for one third of the total area of the breeding pond, and the area of the bait organism breeding region accounts for two thirds of the total area of the breeding pond; 3, cement hardening is carried out on the nursing region, wherein cement hardening is carried out on the pond bottom and the protection slope of the nursing region; 4, the pond is cleaned and sterilized, sterilizing is carried out through bleaching powder at the time five days before the young loaches are put into the pond, and trash fishes, roes, aquatic insects, frog eggs and the like in the young loach pond are eliminated; 5, fresh water is injected after pond cleaning, the water depth is required to be 50 cm, and organic fertilizers are applied after water injecting to breed bait organisms; 6, the young loaches are put into the pond and put into the nursing region; 7, blocking nets are removed at the time two weeks after the young loaches are put into the pond, and the young loaches are distributed to the whole breeding pond; 8, the loaches are trained to eat artificial feed after the young loaches are bred for one month, and the adult loach breeding stage starts. The method is easy to implement and easy and convenient to operate, the loaches can safely live through the weakest external gill stage, and the breeding survival rate of the young loaches is remarkably increased.

The invention discloses a cold-area sandy steep slope biological habitat construction method. The method comprises the following steps of (1), slope surface finishing; (2), bank fixation with piles; (3), weaving of wattle; (4), planting of dryland willows; (5), planting of arbors. Through the four-in-one technological system of 'pile-fence-willow cluster-elm forest', the vegetation coverage of a sandy steep slope is improved rapidly, and the water storage and soil fixation capacity of the sandy steep slope is enhanced; the piles, the lush willow clusters and the elm forest can provide places for perching, nesting, hiding, courting and finding food for birds or amphibians; willow roots and dense shade of the willows provide places for having a rest, taking refuge and finding food for fish; and dead twigs and withered leaves of the trees and the piles rotten after several years are an important source of humus and provide food and diversified habitats for bentonic organisms and aquatic insects, and thus distribution of the aquatic insects is influenced indirectly. The method is simple and convenient, quick in effect, low in cost and capable of being widely used for construction of the sandy steep slope biological habitat in the Songhua River basin.

The invention discloses an aquatic insect torrent trapping net and belongs to the technical field of traps. The aquatic insect torrent trapping net consists of a net handle, a bracket support ring, a net opening iron ring, a net body, a net bottom connection ring, a net bottom collection bag, a net bottom stone outlet, a support frame, an inclined support rod, a fixing rod, a horizontal bracket, an elastic support rod, a frame support rod, an opening tying band, collection bag opening meshes, a ring fixing wedge, a support ring clamping piece and a movable connector. The aquatic insect torrent trapping net is characterized in that the net bottom collection bag is a cylindrical bag and comprises an inner-layer wall and an outer-layer wall, and the outer-layer wall is made of a piece of commercially available cotton fiber cloth; the inner-layer wall is net-shaped, the middle is separated by the opening tying band, mesh diameters of the part in front of the opening tying band are in a range of 1-2 cm and are called the collection bag opening meshes, and mesh diameters of the part behind the opening tying band are in a range of 0.1-0.2 cm; the net opening iron ring, the support frame, the fixing rod, the horizontal bracket, the elastic support rod and the frame support rod form a triangular guide bracket together. The aquatic insect torrent trapping net is simple to manufacture, diversified in function, high in operability, low in cost and obvious in effect.

The invention provides a feedstuff for killing fish and protecting crayfishes. The feedstuff consists of croton, tea bran, wheat bran, fish flour, rotenone and quicklime, wherein croton can kill most fish; the tea bran contains 12-18% of tea saponin that can dissolve the red blood cells of fish, thereby killing miscellaneous fishes, loach, fresh-water snails, fresh-water mussels, tadpoles and some aquatic insects; when taken by fish, rotenone can inhibit the mitochondrial respiratory chain, and cause disorders of the respiratory system, such as dyspnea and convulsion, slackness, paralysis, and death; fish flour contains much protein and wheat bran, and can induce miscellaneous fishes, loach, and fresh-water snails who will take croton, tea bran, and rotenone, thereby killing the miscellaneous fishes, loach, fresh-water snails and other wild aquatic lives. The feedstuff for killing fish and protecting crayfishes provided in the invention is highly sensitive and can kill rough fish, fresh-water snails, etc. in the aquaculture water area of crayfishes, thereby protecting the growth environment of crayfishes.

The invention discloses a DNA barcode-based identification method for aquatic insect chironomids of the genus Copachironus and the genus oligogonal chironomus. Firstly, the total genome DNA of the insects of the genus Copa and Chironomus oligogonum to be identified was extracted, and used as a PCR template to amplify the sequence of about 650 bp in the front part of the mitochondrial COI using the COI universal primers, and Recover and sequence, and finally identify the species according to the nucleotide characteristic variation sites. The method of the present invention can identify different biotypes and larvae or incomplete individuals of Chironomus genus and Chironomus oligogonum, and has the characteristics of fast, efficient, accurate and convenient. The method has relatively low requirements on the instruments and equipment used, and general It can be carried out in molecular biology laboratories and does not require high professional knowledge of the identification personnel. It is more accurate and reliable than the traditional method of identification relying on the morphological characteristics of adults, which is of great significance.

The invention discloses sampling and breeding equipment for aquatic insects, and relates to the technical field of aquatic insect breeding. The sampling and breeding equipment comprises a base. An outer culture tank filled with nutrient liquid is fixed to the base, and an inner culture frame extending into the outer culture tank is fixed to the outer culture tank through a fastening mechanism. A lifting mechanism is formed in the top of the inner culture frame, and comprises a steel wire rope extending into the inner culture frame. A sampling box for collecting the aquatic insects is fixed tothe lower end of the steel wire rope. A trap component is arranged in the sampling box. The sampling and breeding equipment has the advantages that the sampling box is lifted in time through the lifting mechanism, and the aquatic insects collected by the trap component in the sampling box can be lifted in time; the trap component has the effect of quickly trapping the aquatic insects, the aquaticinsects are not easy to escape, and the sampling efficiency is greatly improved; the inner culture frame can provide a good growth environment to the aquatic insects, and is convenient to demount andmount; the breeding effect of the aquatic insects is good.

The invention relates to an auxiliary device for collecting aquatic insects, and belongs to the technical field of collection devices. The auxiliary device comprises a box body, wherein the periphery of the upper end of the box body is fixedly provided with fixing rods, the outer portions of the fixing rods are provided with floating balls, the inner portion of the box body is fixedly provided with a first screen and a first inlet, the first screen is provided with a second inlet and a first groove cooperating with the first inlet, and the bottom of the box body is provided with a bottom cover rotationally connected with the bottom of the box body. The auxiliary device for collecting the aquatic insects has the advantages that the box body with two-layer funnel-shaped inlets traps and collects the aquatic insects, the collection efficiency is high, the possibility is reduced that the aquatic insects entering the interior escape, a cover body with an adjustable distance arranged above the box body collects the aquatic insects on the water surface, the design of the two-layer funnel-shaped inlets avoids the escape of the aquatic insects entering the interior, the collection depth of the box body is controlled through the cooperation with the addable floating balls, the structure is simple, the operation is convenient, and the collection efficiency is high.

The invention provides a method for artificially feeding plecoptera insects indoors. According to the method, a transparent glass feeding box is arranged indoors, the top of the feeding box is not sealed, a small amount of clear water and rock blocks are placed at the bottom of the interior of the feeding box, leaves are placed in the clear water, and starch type fodder is positioned on the rock blocks. By adopting the method, the plecoptera insects can be successfully fed and bred indoors; the method is simple and convenient to operate and has excellent effects. The plecoptera insects are important aquatic insects, and indoor feeding of the insects can provide important base materials for researches on morphology and molecular biology, has important practical value and provides a valuable reference for biological habit research of the plecoptera insects.

The invention discloses a prevention and treatment method of common diseases of oreochromis mossambila. The prevention and treatment method comprises the steps that a pond is built; healthy fry is selected, and disinfection is carried out; pond disinfection is carried out; the throw-in density of the fry is controlled; a chemical additive is added to feed; pond prevention and treatment are carriedout. The pond is built, and the probability of the diseases of fish bodies is reduced from the source; the health fry are selected, disinfection is carried out, miscellaneous fishes, various spawns,aquatic insects, parasites and pathogenic bacteria can be fast killed in the pond, the reasonable throw-in density is specified, freshness of water and the environmental sanitation of the pond are kept, the diseases are eliminated in time, the high-quality feed is adopted, vitamin B, C and E is added, and different agents are added corresponding to different seasons; meanwhile, a four-fixed mode is used for feeding, the vitality of mycetozoa is reduced, and the diseases are prevented from being generated.

The invention discloses a wild insect counter. The wild insect counter comprises a feeding mechanism, a box body, a collection box, a receiving box, an air drafting mechanism, a supporting mechanism and an infrared counter body, wherein the feeding mechanism comprises an adaptation block and a funnel with a through hole formed in a mouth, and a first passage pipe and a second horizontal passage pipe are arranged in the adaptation block; the box body is provided with a box door, and an acrylic pipe is arranged in the box body; the collection box is communicated with the acrylic pipe, a high-voltage power grid is arranged in the collection box, and an opening is arranged at the side wall of the collection box; the receiving box penetrates through the opening and is located in the collectionbox; the air drafting mechanism comprises a base, a draft fan is arranged in the base, and an exhaust inlet of the draft fan is communicated with the collection box; the supporting mechanism comprisestwo first supporting rods and two second supporting rods connected with the box body, and the second supporting rods are connected with the base in a screw-joint mode; and the acrylic pipe is communicated with a water outlet pipe, and a sealing plate is connected to the bottom of the acrylic pipe. The wild insect counter is simple in structure, convenient to operate, convenient to carry and capable of realizing trapping and counting of flying insects and aquatic insects.

The invention discloses a neem oil feed for fish and a preparation method thereof to overcome the problem that a conventional neem oil feed cannot repel aquatic insects. The neem oil feed for fish is prepared from the following components by weight: 0.1 to 5% of neem oil, 30 to 40% of soybean meal, 10 to 15% of a rapeseed cake, 10 to 15% of cotton seeds, 5 to 10% of Cicada pupa, 10 to 15% of fine rice bran and 5 to 15% of wheat. The neem oil feed is an ecological environment-friendly feed, exerts good repellent effect on insects, obviously improve disease resistance of fish, enhances the growth speed of fish and increases culture benefits.

The invention discloses an aquatic insect incubator, which comprises a container A (1) and a container B (3), wherein the container A (1) and the container B (3) are made of a transparent material; the container A (1) is positioned above the container B (3); the top end (20) of an insertion pipe (2) penetrates the bottom surface of the container A (1) to be positioned in an inner cavity of the container A (1); the insertion pipe (2) is in sealed and fixed connection with the bottom surface of the container A (1); the bottom end (21) of the insertion pipe (2) penetrates the top surface of the container B (3) in a sealed manner to be communicated with the inner cavity of the container B (3); the top surface (11) of the container A (1) is provided with an air inlet A (5) and an air outlet (6); and the top surface of the container B (3) is provided with an air inlet B (8). The incubator can effectively control the alternation of generations of the cultured offspring, and therefore is suitable for the concentrated culture of aquatic insects which can fly in adult periods.

A water movement system and method configured to eradicate and/or control mosquito or insect populations that lay eggs in treated, stagnant water environments. The system is comprised of a water pump configured to function in cooperation with an underwater insect attractant device. The insect attractant device is suitably constructed to generate carbon dioxide for attracting insects to a water extermination zone or trap. In one embodiment, the underwater insect attractant device contains organisms such as mycelia for generating the carbon dioxide. Insects are attracted by the carbon dioxide generation device to reproduce in the water extermination zone, using the treated water to lay eggs, and grow larvae and pupae for the subject insects. A solar-powered water pump device is configured to direct the flow of water from the water extermination zone toward filters of the water pump device to trap and kill insect progeny including eggs, larvae, and pupae.

The invention discloses a pair of tweezers suitable for acquiring insect living bodies. The tweezers comprise two tweezer arms and two tweezer handles. Square grooves are formed in the upper ends of the two tweezer arms respectively, matched square insertion columns are arranged in the square grooves, concave arc surfaces are arranged at the upper ends of the square insertion columns, and after the two tweezer arms are combined, the two opposite concave arc faces are closed. The tweezers have the main advantages that magnetic attraction magnet rings are arranged at the open ends of the two concave arc faces respectively, and evenly-distributed leakage holes are formed in the wall thickness portions of the concave arc faces; the tweezer arms and the tweezer handles are made of elastic steel sheets, and the concave arc faces are made of transparent hard plastic. By the adoption of the structure, it can be guaranteed that the insect living bodies are intact when insects, especially rapidly-moving insects and aquatic insects are acquired, and independent storage and classification of the insect living bodies are convenient.

A screening device includes a screen and frame, and is useful in permitting fishermen to detect conditions of the water to be fished for optimum bait and lure selection. The screening device allows a fisherman to collect aquatic insects rising through the water to be fished, thus alerting the fisherman as to the food being seen and eaten by the fish, and identify what depth the insects are in the water. With this knowledge, the fisherman can select the proper lure or fly to catch the fish present in the tested waters.

The invention discloses a pair of tweezers suitable for collecting the living body of an insect, comprising two tweezers arms and two tweezers handles, wherein two opposite concave cambered surfaces are respectively formed on the upper ends of the two tweezers arms, and after the two tweezers arms are combined, the two opposite concave cambered surfaces are in a closed state. The tweezers have the main characteristics that uniformly-distributed leaking holes are formed in the wall thickness part of the concave cambered surface; machining materials of the tweezers arms and the tweezers handles are elastic steel sheet, and the machining material of the concave cambered surface is transparent hard plastic. According to the invention, after adopting the structure, when the tweezers are used for collecting insects, especially insects and aquatic insects moving quickly, the living body of the insect can be kept undamaged.

The invention discloses an asian yellow pond turtle feed and relates to the technical field of turtle culture. The asian yellow pond turtle feed is characterized by comprising the following components in percentage by weight: 40-45% of aquatic insects, 25-30% of fishes, 8-12% of tadpoles, 5-7% of yellow mealworm, 3-5% of water algae, 2-4% of earthworms, 1-3% of shrimp and 2-5% of fruits. A preparation method of the asian yellow pond turtle feed comprises the following steps: removing hard shells and sharp burs of the aquatic insects, the fishes and the shrimps, then mixing the aquatic insects, the fishes and the shrimps with the tadpoles, the yellow mealworm, the water algae, the earthworms, the fruits and the vitamin C, crushing and stirring the mixture to prepare insect powder. The asian yellow pond turtle feed is reasonable in nutrition cooperation and comprehensive in nutrition; the foods are similar to the food types and component ratios in the wild environment; the growth of the asian yellow pond turtle can be accelerated; the immunity of the asian yellow pond turtle can be improved.