179 results about "Aquatic fauna" patented technology

An aquatic animal morphological character damage-free rapid measuring method belongs to the technical field of aquatic animal measuring methods, which is characterized in that the method comprises the following steps: a standard graduated scale is laid beside the aquatic animal to be measured and a clear image is shot with a digital camera; the image is led into a computer image processing software to determine the ratio X between the unit length of the standard graduated scale and the correspondent image distance; correspondent frame measuring fixed points are selected on the image profile and the image distance L1 between the points measured is measured according to the measuring requirements of aquatic animal morphological characters of different types when the image size is kept unchangeable; the actual distance L0 between the points measured is calculated according to the computing formula that L0 is equal to X*L1. The measuring method realizes the rapid, accurate and damage-free measurement of the shapes of living aquatic animals, which has important meaning for improving the work efficiency of object aquatic animal morphological research and provides possibility for the measurement and tracing observation of the aquatic animal living body.

The invention belongs to the technical field of aquatic animal cultivation, and particularly relates to a pipeline system for industrial cultivation of Trachidermus fasciatus. The pipeline system is designed and built according to the ecological habits of Trachidermus fasciatus, and comprises the following three parts: a cultivation main body unit, a water treatment unit and circulating pipelines, wherein the cultivation main body unit is used for cultivation of aquatic animals; the water treatment unit is used for treating cultivation water; the circulating pipelines are the connecting channels among the units and also can be taken as the carriers for the flowing of circulating water in the integral system; and water discharged from the cultivation main body unit enters the water treatment unit through the pipelines, is purified and disinfected, and returns the cultivation unit, thus a closed circulating cultivation system is formed. In the invention, a pipeline system cultivation mode of Trachidermus fasciatus is built; and in the cultivation main body unit, corresponding hard biotopes are arranged according to the requirements of Trachidermus fasciatus in different growth stages, soft biotopes required by Trachidermus fasciatus are manufactured through adjusting and controlling the water circulation mode and the like, thereby achieving the purpose of cultivating Trachidermus fasciatus effectively.

The invention relates to an intelligent ecological fish-vegetable intergrowth culture box, which comprises an LED (light emitting diode) plant growth lamp (1), a plant growth tray (2), an aquatic animal culture area (3) and an aquatic plant cultivation tray (4). The LED plant growth lamp (1) is hung above the culture box through a barb member, the plant growth tray (2) is connected to the aquatic plant cultivation tray through five cylinders, the aquatic animal growth area (3) is the space of the culture box, the aquatic plant cultivation tray (4) can be paved with filter materials such as perlite, cobblestone and active carbon. The LED plant growth lamp (1) adopts a wireless network signal receiver to receive the light quality of a computer host, and the light source is automatically adjusted through a luminescence signal. The plant growth tray (2) is in a barrier form, and materials such as sponge, foam plates and fibers can be used as the culture medium. The aquatic animal culture area (3) is provided with an EC sensor, a water level adjusting device and a temperature sensor. The intelligent ecological fish-vegetable intergrowth culture box is used for the planting and cultivation in high mountains, grassland, plant factories, greenhouses, households and regions which are lack of water.

The invention provides an ecological floating bed and a method for recovering a eutrophic reservoir aquatic ecosystem by utilizing the floating bed. The ecological floating bed comprises a floating bed body located on the water surface, a net cage which is located at the lower part of the floating bed body and a hanging cup located in the net cage, wherein the floating bed body is formed by combining and connecting a plurality of floating blocks; the net cage is of a net-shaped structure and the upper end of the net cage is connected with the bottom of the floating bed body; the hanging cup is connected with the bottom of the floating bed body through a hanging rope; the floating bed body is used for culturing aquatic plants; the net cage is used for internally culturing aquatic animals; the hanging cup is used for internally culturing submerged plants; furthermore, the invention provides the method for recovering a water ecosystem of a eutrophic water reservoir by utilizing the floating bed. By adopting the ecological floating bed and the method for recovering the eutrophic reservoir aquatic ecosystem by utilizing the floating bed, the ecosystem above the water surface can be effectively recovered and ecosystem reconstruction is carried out on the water body in a certain water depth range below the water surface, so that a complete water body ecosystem is easy to recover and the comprehensive utilization of water body resources is realized.

The invention discloses an additive of organic zinc feed and preparation method and use thereof. The method comprises the steps of: stirring under 10 to 60 degrees centigrade, adding chitosan with deacetylation being 70 to 100% into diluted acid with volume percent density being 0.5 to 2% to be 0.5 to 10% chitosan acid solution; then adding inorganic zinc solution into the chitosan acid solution; wherein the content of the inorganic zinc is 1/5 to 30 times of the content of the chitosan; reacting for 0.5 to 15 hours, separating, washing the obtained solid substances for many times until checking out the ions free of zinc, drying, crashing to obtain the additive of organic zinc feed. The invention provides a simple method of preparing the additive of organic zinc feed, which has stable quality and is widely popularized and applied. The additive can be used as the additive for zinc for livestock, birds, aquatic animals and experimental animals. The additive has high biological availability and can save sources and protect the environment and can be sued as an immune dose for improving the resistance against diseases of the animals.

The invention belongs to the technical field of ecological engineering and relates to an algae bloom control method based on a biologic chain relationship. The algae bloom control method disclosed by the invention is established by adopting food and inhibition relationships among organisms, so that the algae bloom outbreak in wetland water is inhibited. By adopting net-isolating floating island, composite layer net supporting floating island, wetland artificial planting technologies and aquatic animal stocking technologies, appropriate wetland organisms (including wetland plants and wetland animals) are selected according to the wetland hydrologic process and the seasonal variation characteristics, the algae bloom control method based on the biologic chain relationship disclosed by the invention is established and a complete wetland biologic chain structure is formed, so that the goal of controlling the algae bloom outbreak in the wetland water is achieved.

The invention discloses an ecological revetment and ecological embankment combined system and a construction method. The combined system adopts ecological building blocks with vegetation holes for carrying out slope protection on riverways, lakes and other near-shore slopes, ecological bags are stacked at the junction of land and water, channels for exchange of near-shore slope soil and water environment substances and a water body natural purification function are guaranteed, aquatic plants can be planted in the ranges of the ecological building blocks and the ecological bags, meanwhile, theecological building blocks and the ecological bags are suitable for survival of aquatic animals, the biological diversity is guaranteed, the water quality is improved, a good ecological and landscapeeffect is achieved, due to the arrangement of a hydrophilic footpath, the requirements of people for being close to a water bank and returning to nature can be met, meanwhile, a bottom beam, a top beam, geotechnical cloth, a banket retaining wall, a footpath retaining wall and other structures are arranged, therefore, an ecological revetment and an ecological embankment form an integral structure,the stability of the near-shore slope and the flood prevention and drainage functions can be effectively guaranteed, and water and soil loss is avoided.

The invention relates to a preparation method and application of biological-based oxygen, sulfur and nitrogen codoped porous carbon. Skin or bones of aquatic animals serve as the raw materials of the oxygen, sulfur and nitrogen codoped porous carbon, the specific surface area of the biological-based oxygen, sulfur and nitrogen codoped porous carbon obtained through activation is 1144.63 to 1517.03 m<2>/g<-1>, the nitrogen doping amount can reach 5.9 percent, and the sulfur doping amount can reach 2 percent. By the preparation method, the pore structure of the porous carbon can be regulated and controlled, codoping of oxygen, sulfur and nitrogen is realized, and the process is scientific, reasonable and easy to operate, so that the production cost of the oxygen, sulfur and nitrogen codoped material is reduced. The physical and chemical properties of the prepared biological-based oxygen, sulfur and nitrogen codoped porous carbon are obviously improved.

The invention provides an ecological floating bed with a self-aeration function suitable for a heavily polluted riverway with relatively high flow speed. The ecological floating bed is characterized in that aquatic plants grow on a bed body matrix; aquatic animals are bred in a barrel-shaped floating bed body; the barrel-shaped floating bed body is fixedly connected with aeration devices; the barrel-shaped floating bed body is formed by assembling two concentric barrels through a PVC (polyvinyl chloride) pipe; the aeration devices are symmetrically mounted at the periphery of the barrel-shaped floating bed body; the barrel-shaped floating bed body is connected with a fixing device. The ecological floating bed has the advantages that the dissolved oxygen content of a bed body system and a peripheral water body can be increased, so that the floating bed plants can grow satisfactorily; holes are formed in the periphery of the bed body to slow down the damage of water flow on the bed body system and prolong the hydraulic retention time of the water body passing through the bed body; filter-feeding fishes are bred, so that the biodiversity of the water body is improved and a certain economic value can be obtained; the ecological floating bed does not need other energy consumption and is simple in structure and easy to manufacture, and the pollutant purifying efficiency of the ecological floating bed is improved.

The invention discloses a wetland ecosystem restoration method which comprises the following steps: firstly carrying out sectional water pumping dredging on a water area of an object wetland, storingthe pumped wetland water body into an anaerobic tank, and carrying out impurity removal, soaking, aeration, precipitation and separation on the cleaned sludge to obtain active sludge and deposited sludge; drying the deposited sludge until the water content does not exceed 5%, crushing, adding EM bacterial powder, ammonia oxidizing bacteria powder, bacillus subtilis powder, a probiological growth promoter and volcanic mud, and uniformly mixing to obtain bacterial mud; putting the activated sludge into a wetland water body, and carrying out intermittent aeration; backfilling bacterial sludge tothe water area section subjected to water pumping and desilting, planting submerged plants on the bacterial sludge, arranging a microorganism substratum on the bacterial sludge, and pouring the wetland water body back to the water area section; and arranging an ecological floating bed in the water area section, and putting benthonic animals, fishes and shrimps put into the ecological floating bed.The water transparency can be rapidly improved, a complete aquatic animal ecological chain and microbial communities are constructed, wetland pollutant reduction is promoted, and the water quality isimproved.

The invention relates to a construction method of a landscape lake water ecosystem. The construction method comprises the following steps: 1, landscape lake region division: dividing the interior of alandscape lake into a fixed side slope ecosystem, an aquatic animal system and a lake bottom aquatic plant ecosystem according to different ecological effects; 2, landscape lake water pretreatment: carrying out tedding and quicklime sterilization and disinfection methods on lake bottom soil; 3, constructing of a side slope ecological system: planting emergent aquatic plants at a shallow water side slope of the landscape lake; 4, constructing of a lake bottom aquatic plant ecological system: planting submerged plants in a central deep water area of the landscape lake; 5, constructing of an aquatic animal system: after the aquatic plants are planted, putting filter-feeding fishes and other filter-feeding benthic animals into lake water; and 6, later maintenance: harvesting the aquatic plants and catching the aquatic animals regularly. The method has the effects that the survival rate of the aquatic plants is increased, and the self-repairing capacity and the self-purifying capacity of awater body are enhanced.

The invention provides a bioremediation coupling technology of a zoology control of water area pollution source aiming at water area ecological remediation. The technology is composed of a pollution ecological control portion and a bioremediation portion. The pollution zoology control refers to that, on one hand, by putting carbon black to restrain the release of pollutant in order to achieve the goal of controlling endogenous pollution and on the other hand is that through a construction of zoology ground sill around a drain outlet which is on the water area shore side, through absorption of zoology ground sill, microbial degradation and absorption of emergent aquatic plant which is planted above, the goal of reducing exogenous pollution can be achieved. The bioremediation is using an ecosystem composed of indigenous microorganisms, submerge plants and aquatic animals to repair and purify the water area.

The invention discloses a combined ecological retaining wall building block. The combined ecological retaining wall building block comprises first building blocks and second building blocks, wherein a plurality of ecological spaces which are communicated with each other and used for planting of green plants through soil filling or serving as places for habitation and reproduction of aquatic animals are formed after the first building blocks and the second building blocks are repeatedly connected in a clamping mode and interlocked in sequence from top to bottom. The combined ecological retaining wall building block is simple in structure and convenient to construct. A clamping connection interlocking structure is formed between the first building blocks and the second building blocks, so that the stability of the slope surface is enhanced; the formed ecological spaces which are communicated can be filled with soil and vegetation, and therefore a plant root system network can be formed, and the slope surface is stabilized; or, the habitation space is provided for growth and reproduction of fishes, the ecological environment of river banks is protected, the attractive landscape ecological effect is achieved, and the effect of water and soil conservation can be achieved.

The invention discloses a method and a facility for simulating ecological clean of eutrophic river water. The method is mainly to simulate a natural ecological cleaning system, use microorganism, phytoplankton and aquatic animals to perform three-level purification, and use a nature simulating ecological cleaning facility for dividing an eutrophic water body into three-layer purification, meanwhile a biotransformation effect of an environmental-friendly ferment is combined to decompose, absorb and utilize organic matters in the eutrophic water body, and finally the purpose of purifying water quality is achieved. The facility provided by the invention can be built close to the eutrophic river water; by using the method provided by the invention, water circularly flows back to a river after flowing into the system facility, and the purpose of purifying the water quality is achieved without affecting the actual flowing speed of the river water; the method provided by the invention is simple and easy to operate and implement, and can be popularized and applied to the field of rivers and lakes currently polluted by nitrogen and phosphorus organic matters.