117 results about "Artificial reefs" patented technology

The present invention relates to the technical field of ecological restoration. Disclosed are an aquatic ecological restoration method and system based on artificial reefs. The method comprises: acquiring topographic data; deploying artificial reefs having different structures; performing water quality monitoring to acquire water quality parameters; on the basis of the water quality parameters, adjusting the species composition of fishes and benthic organisms, and monitoring the water flow velocity and the water flow direction around the artificial reefs having different structures; formulating a plurality of restoration strategies; and validating the plurality of restoration strategies to obtain an optimal restoration strategy. The present invention can significantly improve the water quality, and can also enhance the biodiversity, optimize the water flow conditions, precisely identify polluted zones and determine an optimal restoration strategy, thereby achieving significant economic and social benefits. Therefore, the present invention is an efficient and sustainable aquatic ecological conservation measure.

The invention belongs to the technical field of ecological fishery engineering, and particularly discloses an artificial fish reef for fish sonar monitoring, which comprises a reef body, sonar equipment, buoys and a signal transceiver. The reef body is of a hollow polyhedral structure, the bottom of the reef body is opened to be inserted into seabed sediment to enhance stability, and the top and the side walls are provided with signal receiving and transmitting holes and hollowed-out parts used for receiving and transmitting sonar signals and promoting seawater circulation. The sonar equipment is fixed in a mounting groove in a central partition plate of the reef body and comprises a sonar placement cabin, a sonar transceiver, a transducer and a relay, wherein the sonar transceiver, the transducer and the relay are integrated in the sonar placement cabin. The buoy is connected with the sonar equipment and the signal transceiver through transmission lines to form an underwater detection-water surface transmission system; the signal transceiver integrates a 4G module and a solar power supply system, and supports data real-time return and self-powered operation and maintenance. The limitation that a traditional fish reef is single in function is broken through, the ecological restoration and intelligent monitoring capabilities are achieved, and a new solution is provided for marine ranch resource assessment and dynamic management.

The invention discloses a method for determining an artificial fish reef structure. The method comprises the following steps: acquiring a data set according to a constructed artificial fish reef hydrodynamic simulation model; performing model training according to the data set to obtain an artificial fish reef hydrodynamic characteristic prediction model, wherein the artificial fish reef hydrodynamic characteristic prediction model is used for predicting according to the structural parameters of the artificial fish reef to obtain corresponding wake flow area comprehensive indexes; randomly generating a set group number of structure parameters in a given value range of each structure parameter of the artificial fish reef, and predicting to obtain a wake flow region comprehensive index corresponding to each group of initial structure parameters through the artificial fish reef hydrodynamic characteristic prediction model; and performing a set round of optimization iteration on each group of structure parameters, and determining the structure parameter corresponding to the optimal wake flow region comprehensive index as the structure parameter of the artificial fish reef. According to the scheme, the artificial fish reef wake flow area comprehensive index is used as an evaluation index, and the optimal structure parameter of the artificial fish reef can be efficiently searched in a given structure parameter range.

An artificial reef structure including thin tensile members as part of the structure. These tensile members readily accumulate marine life to create a more organic structure. The reef structure can accommodate a wide variety of ocean sensing and communication systems. Embedded lighting and electronic elements can be used to attract and monitor marine life.

The utility model relates to a marine fishery culture net cage, in particular to a spherical culture net cage with a longitude and latitude structure. The utility model aims to provide a high-molecular high-density polyethylene (HGPE) floating device which is made of a high-molecular HGPE material and has certain buoyancy; the production cost can be reduced, and sinking and floating of the spherical aquaculture net cage are easy to control. The utility model discloses a spherical culture net cage with a longitude and latitude structure. The spherical culture net cage comprises a spherical net rack and a netting, the spherical net rack is composed of warp-wise rods, weft-wise rods and a fixing device. The spherical net rack is characterized in that the fixing device is used for fixedly connecting the warp-wise rods and the weft-wise rods in a crossed mode; and the plurality of warp rods and the plurality of weft rods are fixed by the fixing device to form an integral spherical grid structure. The utility model has the advantages that the structure is simple, and the production cost is low; the floating type artificial reef can also be used as a floating type artificial reef.

An artificial reef module for marine ecosystem restoration comprises a base having a lattice configuration and one or more poles projecting upwardly from the base and configured to support one or more artificial inhabitation units e.g., made by 3D printing, extrusion, pultrusion, or mold specific clay. The module can be configured with one or more of the artificial inhabitation units mounted on the poles, where each inhabitation unit may comprise a plurality of holes formed therein.

The invention discloses an artificial biological reef for naturally repairing coral, a system and a preparation method. The artificial biological reef body comprises a main body structure made of a cement-based composite material, and at least one hollow cavity is formed in the main body structure; the ecological through holes penetrate through the wall thickness of the main body structure and are used for promoting water flow exchange and marine organism channels; the biological affinity surface layer is arranged on the surface of the main body structure, is made of cement-based materials mixed with seaweed extracts and has rough textures so as to promote attachment of coral larvae; and a reinforcing framework formed by a corrosion-resistant fiber reinforced material embedded in the main body structure improves the overall structural strength and impact resistance. The system comprises a plurality of reefs, special connecting pieces and a foundation stabilizing platform, and can be combined into an array for simulating a natural reef space structure. The preparation method comprises the steps of seaweed extract preparation, bioactive slurry preparation, assembly prefabrication, integrated pouring forming, maintenance and function integration, and preparation of the eco-friendly, stable-structure and multifunctional artificial reef is achieved.

This invention discloses a device and method for the propagation, release, and rewilding training of large yellow croaker fry, relating to the field of marine biological resource conservation technology. The device includes: a water tank containing water, with multiple artificial reefs placed inside; a light source positioned above the water tank; multiple wave-making pumps evenly distributed along one side of the inner wall of the water tank; a release structure for releasing predator pheromones into the water tank; a camera mounted on the inner wall of the water tank; and a controller electrically connected to the camera, light source, and wave-making pumps. The camera collects behavioral characteristic information of the large yellow croaker during rewilding training and sends this information to the controller. A fish behavior analysis system comprehensively analyzes the swimming and reef usage of the large yellow croaker fry in the water tank to determine the effectiveness of the rewilding training. The advantages of this invention are enhanced ability of large yellow croaker fry to adapt to the marine environment and improved survival rate of released fry.

An artificial reef for providing a habitat for aquatic species in water, comprising: a base arranged to be anchored to a seabed surface, at least a portion of the base being a concrete material; the plurality of organic casings are coupled to the base; and a plurality of rods having a first end coupled to the base and a second end extending away from the base, the rods being made of a natural material.

This item is an artificial reef used to create seaweed beds.

This invention discloses an acoustic assessment method for the attitude of artificial reefs. Based on side-scan sonar images, noise reduction is performed using two-dimensional empirical mode decomposition. Targets and their shadow contours in the images are extracted using fuzzy C-means and horizontal clustering algorithms. The image shadow contours are matched with shadow contours from a constructed 3D reef model library to estimate the reef's tilt angle. The height and subsidence of the reef are estimated based on the geometric relationship between the towed fish, the target length, and the shadow length, thus achieving the assessment of the artificial reef's attitude. This invention leverages the fast computation speed of fuzzy C-means clustering and the high segmentation accuracy of horizontal clustering to achieve rapid and accurate target segmentation in side-scan sonar images. Matching the target shadow contours in the side-scan sonar images with the projected contours of the constructed 3D artificial reef model enables the assessment of the artificial reef's attitude.

The present invention highlights the use of an innovative submersible structure made of concrete enriched with dead algae to promote marine biodiversity. This biodegradable material ensures better integration into aquatic ecosystems while providing a sustainable habitat for marine organisms. Furthermore, the integration of modern technologies such as sensors, sounders, cameras, GPS, modems, and underwater drones is highlighted in both texts. These tools enable real-time monitoring of artificial reefs, ensuring precise tracking of changes in marine habitats and local ecosystems. This monitoring ensures not only effective management of marine ecosystems but also enhanced protection against threats such as coastal erosion. Finally, both sections agree on the environmental and economic benefits of the project. In addition to promoting marine conservation, this invention paves the way for sustainable activities, including ecotourism, while emphasizing ecological sustainability and technological innovation. The project thus illustrates a holistic approach to addressing the environmental challenges linked to the degradation of marine ecosystems. The project represents a significant step forward in the management of marine ecosystems thanks to the combination of modern technological solutions and innovative, eco-friendly materials. By combining biodegradable artificial reefs with advanced monitoring devices, this solution offers an integrated approach to restoring marine biodiversity, protecting coastlines, and promoting sustainable activities. It represents an exemplary model of responsible and technological development, meeting current environmental conservation needs while offering viable economic opportunities.

The application discloses a kind of alkalinity slow-release materials and preparation method for promoting carbon sequestration and sink in marine artificial reef.The alkalinity slow-release material includes magnesium hydroxide, sodium carbonate, glutaraldehyde, cement, three light methyl aminomethylane buffer and water.Sodium carbonate, magnesium hydroxide and glutaraldehyde are mixed with cement, then water and three light methyl aminomethylane buffer are added for stirring.After sufficient stirring, the alkalinity slow-release material is obtained by setting and solidifying in a mold.The magnesium hydroxide and sodium carbonate of slow-release material react with free acid ions in water body to generate soluble salt that can be absorbed and salt that inhibits the growth of algae.The slow-release material increases the CO2 absorption capacity of water body and has no adverse effects on the environment.It can also be used to make artificial reefs, which can adjust the alkalinity of seawater and promote the growth of corals in addition to the function of transplantation and fixation.By using the slow-release material, the alkalinity of seawater can be maintained within a certain range, CO2 absorption and seawater acidification can be reduced, which is helpful for the recovery of coral reef community and promotes carbon sequestration and sink in seawater.

The application discloses a kind of artificial reef concrete preparation methods, comprising: preparation steel slag fine aggregate, preparation steel slag base coarse aggregate, preparation artificial reef concrete;Specifically including the steel slag that meets the condition is screened, obtains two different particle sizes steel slag particles, carries out stabilization, screening and grinding, washing treatment, then the steel slag powder obtained is two-step granulation and two-step maintenance, obtains steel slag base coarse aggregate;Finally steel slag fine aggregate, coarse aggregate, cementing material, water and admixture are mixed uniformly according to preset proportion after forming maintenance, preparation adult artificial reef concrete.The steel slag content of the present application is not less than 55%, the 28-day compressive strength of concrete is higher than 38MPa, the strength retention rate is not less than 95% after seawater immersion for 360 days, pH is stabilized at 8.39~8.46, close to natural seawater pH value 8.2.Using steel slag for artificial reef concrete can realize large-scale, high-value utilization of steel slag, adapt to the current situation of large demand for artificial reef, and also can greatly reduce the production cost of artificial reef.

This invention discloses a modified coral aggregate UHPC for islands and reefs, its preparation method, and prefabricated island and reef components. The modified coral aggregate UHPC, by mass ratio, is composed of the following raw materials: cement, 30-50 parts; ion migration inhibitor, 5-15 parts; modified coral aggregate, 40-60 parts; stainless steel fiber, 3-7 parts; notched polyethylene fiber, 0.4-0.8 parts; water-reducing agent, 0.3-0.7 parts; adhesive powder, 0.5-1.5 parts; defoamer, 0.05-0.15 parts; combined expansion agent, 1-3 parts; early strength agent, 0.5-1.5 parts; carbon fiber, 0.1-0.2 parts; carbon nanotubes, 0.05-0.1 parts; and mixing water, 9-12 parts. The modified coral aggregate UHPC prepared by this invention has self-compacting properties, high strength, high toughness, high durability and high electromagnetic shielding, and can be sourced locally. It can be used to manufacture prefabricated island and reef components such as artificial reefs and offshore platforms, meeting the needs of island and reef engineering construction and use.

The utility model provides an underwater multiplication reef for controlling fish swimming direction, which comprises a multiplication reef main body, a wave power generation device is arranged above the multiplication reef main body and floats on the sea surface, anchor chains are arranged on two sides of the wave power generation device, one end of each anchor chain is fixed with the bottom of the wave power generation device, and the other end of each anchor chain is fixed with the other end of the wave power generation device. The other end of the anchor chain is inserted into the seabed through an anchor hook, a bubble generator is installed below the motion path of a swing plate of the wave power generation device, the swing plate of the wave power generation device is directly connected with a water pump plunger of the bubble generator through a rigid connecting rod, and an exhaust pipeline is arranged below the bubble generator. The proliferation reef body comprises a first-layer reef body, a second-layer reef body and a third-layer reef body which are sequentially stacked from top to bottom, the first-layer reef body is a reef body of a cube structure, the interior of the first-layer reef body is hollow, each face of the first-layer reef body is provided with a circular through hole communicated with the interior, the second-layer reef body and the third-layer reef body are both hexagonal reef bodies, and the second-layer reef body and the third-layer reef body are both hexagonal reef bodies. And the hexagonal reef body is hollow.

The artificial reef for repairing the eucheuma comprises a base, a supporting frame, a frame shaped like a Chinese character'tian ', a mesh and a jacking mechanism, the jacking mechanism comprises an electric push rod, a normally-open button, a metal block, a spring, an electromagnet and a battery pack, the frame shaped like the Chinese character'tian' is supported through the supporting frame, the mesh arranged on the frame can be used for binding the eucheuma, and the jacking mechanism is used for jacking the eucheuma. An output shaft of the electric push rod can extend upwards and extend into a groove of the frame shaped like the Chinese character'tian ', so that the normally open button is triggered to be in a closed state, at the moment, the electromagnet magnetically attracts the metal block after receiving electric energy of the battery pack, and the metal block leaves from the limiting groove and retracts into the storage groove; the frame shaped like the Chinese character'tian 'can be moved to the upper portion of the base so that workers can check, trim and manage diseases and pests of the eucheuma conveniently, meanwhile, the electric push rod can support a new frame shaped like the Chinese character'tian' so that binding of the eucheuma can be facilitated, and the planting and repairing efficiency can be improved.

The present invention belongs to the technical field of life cycle assessment, and relates to a method for screening artificial reefs based on environmental impact. The life cycle assessment method is used to conduct an environmental impact assessment on the production of four artificial reefs made of different materials, including two common materials: reinforced concrete and steel, and two production waste resource utilization materials: shell powder replacing 20% ​​of fine aggregate to make concrete, and steel slag replacing 20% ​​of cement to make concrete. First, the life cycle boundaries of the four materials of reefs are determined; then, the raw materials, resources, energy consumption of the different reef production processes and the consumption of the two waste pretreatment processes are collected; then, GaBi software is used to build a model, and CML2001 is used for characterization and normalization analysis. The present invention compares the energy consumption and environmental impact of the four materials in their life cycles from a full life cycle perspective, identifies the consumption of the two waste pretreatment processes, judges the environmental friendliness of the four materials, and proposes corresponding improvement measures.

The utility model relates to the technical field of ocean engineering discloses a kind of ecological breakwater of submerged dike, artificial reef and mangrove composite, including artificial reef, the inside of artificial reef is provided with submerged dike, the outside of submerged dike is fixedly connected with node column, the node column is fixedly connected in the inside of artificial reef, the side of artificial reef is fixedly connected with mangrove bottom protection, the top of mangrove bottom protection is provided with multiple mangrove, artificial reef is hollow triangular structure, the top angle of artificial reef is 60 degrees, submerged dike is triangular structure, the top angle of submerged dike is 60 degrees.In the utility model, under the combination of submerged dike, mangrove and artificial reef, through double wave dissipation effect, effectively reduce the erosion of wave to structure, enhance the dissipation ability of hydrodynamic force, promote ecological restoration, reduce scour, enhance overall stability, prolong service life.

The invention belongs to the technical field of marine ecological restoration and marine ranching, and particularly relates to a marine ecological restoration device based on cooperation of an artificial reef body and seaweed transplantation. The device comprises a basic reef body, a seaweed cultivation module, a filter feeding shellfish attachment area, a sensor group, a control module and an execution mechanism, ecological coupling of seaweed and shellfish is achieved through optimized layout and intelligent regulation, water quality purification and system stability are improved, and the device is suitable for active restoration and intelligent management of the marine ecological environment.

The present disclosure discloses a dredged soil utilization-based artificial reef structure and a processing method thereof, and belongs to the technical field of artificial reefs. The dredged soil utilization-based artificial reef structure includes a dredged soil artificial reef structure, and the dredged soil artificial reef structure includes a first dredged soil reef, a second dredged soil reef, and a third dredged soil reef; annular sliding chutes are formed in eccentric positions of upper surfaces of the first dredged soil reef and the second dredged soil reef; annular metal meshes are movably connected into the two annular sliding chutes; and a heavy block, a first floating block, and a second floating block are respectively embedded into placement slots of the three reefs in sequence. The artificial reef structure is processed by using dredged soil. Dredged soil resources are from the ocean and then are returned to ocean restoration, which satisfies the concept of resource recycling. Furthermore, a surface of dredged soil has multiple grooves, which is convenient for attachment of corals to achieve the purpose of ecological restoration of coral reefs, so that habitats, breeding places, and foraging places are provided for aquatic organisms such as fish to escape from natural enemies, playing an important role in the stability of an ecological system.

comprises the following steps: S1. Pretreatment of seashells: Collect, sterilize and crush seashells to reach 2,500 meshes. S2. Preparation of 3D printing materials: Mix polyhydroxyalkanoate and additives with the calcium carbonate powder obtained in S1, and prepare 3D printing wires using an extruding machine. S3. Preparation of 3D printed artificial reef: Use the 3D printing wires to print artificial reef modules with a topological shape. S4. Installation of artificial reefs: Fix and connect the printed artificial reef modules to each other, and fix them according to different occasions, for example, fix in form of floating reefs or on benthal terrain. The invention enables efficient, environmentally friendly and customizable restoration of marine habitats. The method offers advantages such as material sustainability, topologically optimized structures that enhance water flow through artificial reefs, flexible installation, substantial ecological benefits, and lightweight artificial reefs that facilitate transportation.

The present invention relates to a computer-implemented method for designing artificial reefs (2), comprising the steps of: i) analysing geographical data (3) about a selected site (1); ii) generating a 3D model of the terrain (5) of the selected site (1) based on the geographical data (3); iii) defining constraints (41) in the 3D model of the terrain (5); iv) defining an optimised area (42) in the 3D model of the terrain (5); v) defining an optimised design (43) of the landing points (51) in the 3D model of the terrain (5), specifically intended for a system or method developed as a self-learning algorithm configuration, which allows same to perform and evolve in an open environment at sea.

The application discloses an assemblable chain type artificial fish reef, which comprises a plurality of fish rooms, the fish rooms are connected with each other through connecting rods and simple ball hinges to form a chain type structure, the fish room is in a symmetrical double-fan-shaped column structure, ball heads of the simple ball hinges are respectively installed on two end faces of the fish room, ball seats of the simple ball hinges are respectively installed on two ends of the connecting rod, the ball heads can rotate in the ball seats to stretch and fold the fish rooms, the fish rooms are connected with each other to form a chain type overall structure, the fish rooms can be nested and stacked on the bottom of a sea area with a complex structure to form a stable juvenile fish breeding field and a shelter for cephalopods, the juvenile fish breeding field and the shelter can provide a breeding environment for the juvenile fish to feed, stay and avoid enemies, improve the survival rate of the juvenile fish of reef-loving fish, and provide a habitat for cephalopods such as short octopus to avoid enemies.

The application discloses a kind of artificial reef area dissolved inorganic carbon (DIC) monitoring device, belong to marine monitoring technical field, specifically related to unmanned aerial vehicle component is adopted, corresponding negative pressure component and winding water taking component are set below it, water taking column, first spring, sliding sleeve and adjusting piece are set in water taking component;And first compression piece, second compression piece and spray head are set below unmanned aerial vehicle component;Monitoring device disclosed in the application can make water taking column in water taking component more stable, and avoid the emergence of error caused by the instability of water taking column and the instability of water waste around water taking column when taking liquid, also can avoid affecting the fluency of water inflow in sampling process and the influence of sampling water quality caused by the normal flow of surrounding water flow in sampling process;Not only can the weight be increased by the water inflow of first compression piece and second compression piece, but also the water can be squeezed out to cool unmanned aerial vehicle and water taking component.

The invention provides a device for constructing a seaweed field on a newly-built artificial fish reef, which comprises an artificial fish reef, a seaweed attachment base and an isolation layer, the isolation layer is a physical isolation layer arranged between the artificial fish reef and the seaweed attachment base and is used for blocking direct harm of artificial fish reef extract to seaweed seedlings, and the isolation layer is a physical isolation layer arranged between the artificial fish reef and the seaweed attachment base. The isolation layer is arranged on the artificial fish reef, prevents direct friction between the seaweed attachment base and the artificial fish reef, is of a sheet-shaped structure and can enable expected seaweed to adhere and grow; and the fixing assembly is used for fixing the seaweed attachment base and the isolation layer on the artificial fish reef frame, so that the seaweed seedlings and the artificial fish reef form a relatively stable spatial position relationship. An isolating layer is arranged between a newly-built artificial fish reef and seaweed seedlings, the seaweed seedlings are isolated from the artificial fish reef through the isolating layer, the seaweed seedlings are prevented from being directly damaged by extracts of the artificial fish reef, and when harmful substances in the artificial fish reef are reduced to be suitable for attachment and growth of seaweeds, the seaweed seedlings can preferentially occupy the artificial fish reef; and constructing a seaweed field according to expectation.

The invention belongs to the technical field of artificial reefs, and discloses an engineering muck-based artificial reef for seabed sand excavation pit repair and a self-sinking construction system.The engineering muck-based artificial reef comprises a ship body, a buoyancy adjusting mechanism is installed at the bottom end of the ship body, a first servo motor is fixed to the bottom end in the ship body, and an inner supporting mechanism is fixed to the bottom end of a stretching line; through cooperation of structures such as a reef body shell, a microbial carrier and an algae spore bag, the reef body shell is designed to be in a hollow cylinder shape, the reef body shell is made of engineering residue soil obtained by recycling urban construction waste as a main material, and the reef body shell is formed by screening and smashing the engineering residue soil and then adding a proper amount of Portland cement or gelling agent to be mixed; the construction waste materials are recycled while environmental pollution is reduced, and the offshore ecological environment is restored by arranging the microbial carrier and the algae spore bag in the inner cavity of the reef body shell, so that the purposes of reducing the seabed ecological restoration cost, improving the efficiency and reducing the environmental pollution are achieved.

The invention discloses an oyster ecological reef cluster specially designed for a soft substrate intertidal zone mud flat and based on timber pile fixation, and belongs to the technical field of marine ecological restoration and coast engineering. The invention provides a suspension type reef construction scheme based on the friction pile principle aiming at the problem that an existing gravity type artificial reef is prone to sedimentation on a silty and muddy beach. The ecological reef cluster is composed of a plurality of reef body units, each unit comprises a pine pile set, and net bags are hung and fixed through rope knots. Trace terpenoids released by the pine material and biological membranes on the surfaces of the scallop shells have a synergistic effect, so that the attachment rate of the oyster larvae is remarkably increased. According to the method, through a'biological armor 'mechanism, the wood piles are wrapped and protected from being corroded by ship maggots through rapid calcification of oysters, a hydrodynamic field is optimized through 50-meter large-interval staggered layout, water body exchange and bait supply are guaranteed while wave energy is reduced, and the problem that structural stability and biocompatibility are difficult to consider in ecological restoration of the soft foundation beach is solved.

The present invention discloses a three-dimensional monitoring device for artificial reefs, which relates to the field of marine ecosystems. The device comprises a protective cover and a suspension assembly. Multiple suspension assemblies are arranged around the outer side of the lower layer of the protective cover. The protective cover comprises an outer shell and an inner shell, both of which are made of transparent materials. Multiple sealing assemblies are provided between the outer and inner shells. A breeding net surrounds the bottom of the inner shell, and a monitoring device is installed on the bottom of the inner shell. The present invention aims to provide a three-dimensional monitoring device for artificial reefs that has a good clustering effect, facilitates observation, and protects the living environment.

This invention discloses an environmentally friendly composite artificial reef material and its preparation method, belonging to the field of marine ecological restoration technology. The material comprises a composite cementitious material, composite aggregate, modified biochar, shell powder, alkali activator, water, microbial slow-release microspheres, and basalt fiber. The preparation method includes microsphere and modified biochar preparation, dry mixing, wet mixing, molding and curing, and functionalization treatment. This invention addresses the problems of high alkalinity and slow bio-attachment in traditional artificial reefs by employing a solid waste-based composite cementitious system to reduce alkalinity. Microbial microspheres are embedded at specific points on the surface through geometric locking of micro-pits and anchoring with calcium alginate gel, achieving a long-term slow-release supply of microorganisms. This invention combines environmental friendliness, low alkalinity, and active microbial supply.