73 results about "Zooplankton" patented technology

A marine zooplankter identification method based on in-situ images and deep learning is used for processing a multi-stage series deep learning architecture constructed for all in-situ images, and comprises the following steps: quickly positioning and framing zooplankter individuals under a complex background based on a YOLOv8 skeleton construction model; performing pixel-level fine segmentation on individuals in the in-situ image by using a U-Net model, and extracting an accurate contour to obtain a high-quality individual image; and finally, inputting the image into a PlanktonNet network innovatively designed based on a ViT architecture, and through adaptive small-size slice embedding and introduction of a convolution word embedding layer, improving small-scale target feature extraction capability, and realizing high-precision and fine-grained classification of genera and species. The method has the advantages that target detection, semantic segmentation and recognition tasks are organically fused, the problems of low recognition efficiency and low automation degree in the prior art are effectively solved, and marine zooplankton can be quickly and accurately recognized from in-situ images on a large scale.

The invention discloses an ecological restoration system for mangrove forest wetlands, and relates to the technical field of ecological restoration of coastal wetlands, and the technical key points are as follows: the ecological restoration system comprises an algae-cleaning biocenosis: the number of algae is reduced through salt-tolerant algae-cleaning organisms, and the transparency of a water body is improved; the sea grass plant community comprises Sichuan fructus viticis and halophila acuminata, absorbs eutrophic substances in water through photosynthesis, and further purifies the water quality; aquatic animals comprise fishes, benthonic animals, shrimps and filter-feeding zooplanktons; the mangrove plant community is used for planting bruguiera gymnorrhiza, kandelia candel and aegiceras corniculatum in a layered manner according to tide and water depth so as to realize the functions of purifying water quality of an ecological system and providing a habitat; and the environment monitoring module is provided with tide monitoring equipment, observes tide water level change and salinity and alkalinity, and implements early warning and emergency measures under extreme climate conditions. According to the method, a multi-layer producer community system can be coupled and repaired, the eutrophication problem can be effectively solved by multi-dimensionally improving the biodiversity, and a new method is provided for coastal wetland repair.

The invention provides a bay water health status evaluation method, device and product, and the method comprises the following steps: S1, determining a sampling site and collecting a zooplankton eDNA sample to obtain amplicon sequence variant information; s2, annotating amplicon sequence variant information to obtain species composition information and abundance data; s3, obtaining a first evaluation candidate index according to the species composition information and the abundance data; constructing a co-occurrence network and determining a second evaluation candidate index according to the network topology parameters; combining the first evaluation candidate index with the second evaluation candidate index to obtain a third evaluation candidate index; s4, selecting a reference point and a damaged point, and obtaining key evaluation candidate indexes through an artificial neural network model; and S5, constructing a zooplankton integrity index based on the key evaluation candidate indexes, and evaluating the water quality health grade according to the zooplankton integrity index. By utilizing the technical scheme, the precision of evaluating the ecological health condition of the severely polluted bay water body can be improved, and meanwhile, the complexity of an evaluation index system is reduced.

The invention discloses a machine learning-based zooplankton intelligent identification method and system. The method comprises the steps of constructing a target detection model for aquatic organisms based on deep learning; wherein the target detection model comprises an image fusion layer, a DenseNet network and a region candidate device RPN; performing multi-focus image fusion processing on the multi-dimensional image sample of the zooplankton by using the image fusion layer to obtain a fusion feature map; performing feature extraction on the fused feature map through the DenseNet network to obtain feature maps of different levels, and positioning target information of the feature maps; generating a plurality of candidate frames based on the target information by using a region candidate RPN, and performing screening through a non-maximum suppression method based on Giou to obtain a target candidate frame with the highest score; and the target detection model classifies and locates the target candidate box to realize zooplankter identification.

The invention discloses a multi-size aquatic organism bait culture method, which is characterized in that livestock and poultry waste extract liquid prepared by the culture method is used for co-culture of Rhodospiraceae bacteria and Chlorella algae, and the obtained algae is used for co-culture of zooplankton of Brachionidae and Harpacidae to finally obtain the multi-size aquatic organism bait. Compared with the harpacticoida cultured only by algae, the harpacticoida obtained by the culture method has the advantages that the EPA content is increased by 90.53%, the DHA content is increased by 13.47%, and the nutritional value is higher; a reasonable production system provides bait with multiple sizes, and the yield of chlorella algae, brachionus and harpacticoida is effectively increased; moreover, a new way for resource utilization of livestock wastes is provided, and efficient, environment-friendly and sustainable bait production is realized.

The present application relates to the field of sewage purification, and discloses a household micro sewage treatment system and a sewage treatment method, which comprises the following steps: building a septic tank; preparing a household micro sewage treatment system, an aeration system and suspended filler for microbial attachment; pumping clarified liquid by a lifting pump, and the clarified liquid enters a contact oxidation zone, and microorganisms degrade COD and BOD in the clarified liquid; the clarified liquid at the contact oxidation zone flows into an electrocoagulation zone, and electrocatalytic flocculation is performed; then, pollutants and phosphorus in the clarified liquid are filtered by a filtering zone, and the clarified liquid forms purified water; the purified water is taken from a water outlet zone, and is used for crop irrigation; or, a landscape zone for breeding aquatic plants or plankton is arranged at the water outlet zone. In the present application, the contact oxidation zone, the electrocoagulation zone, the filtering zone and the water outlet zone are sequentially and continuously arranged from bottom to top, and the arrangement structure of the whole household micro sewage treatment system is compact, and it is more convenient to arrange the system in a separate house environment in rural areas.

The invention belongs to the field of biological trapping and monitoring devices, and discloses a zooplankton trapping and monitoring device and a working method, and the zooplankton trapping and monitoring device comprises a trapping structure, a screening structure and a negative pressure generation structure. The capturing structure comprises a capturing bin body and a capturing inlet formed in the capturing bin body, and the capturing inlet is used for guiding zooplankton to enter the capturing bin body. The screening structure comprises a screening bin body, a one-way valve and a screen. The one-way valve is installed at an inlet of the screening bin body and used for controlling the communication state between the screening bin body and the capturing bin body. When the one-way valve is opened, the screening bin body is communicated with the capturing bin body, and zooplankton collected in the capturing bin body enters the screening bin body under the action of negative pressure; the screen is arranged in the screening bin body and divides the screening bin body into a plurality of bin bodies in sequence. The negative pressure generating structure communicates with the screening bin body and is used for generating a negative pressure environment in the screening bin body. When the negative pressure generating structure works, zooplankton in the capturing bin body is sucked into the screening bin body under the action of negative pressure.

The invention relates to a tail water purification ecological treatment process and structure, and relates to the technical field of tail water purification, and the tail water purification ecological treatment process comprises the following steps: S1, ecological enhancement area treatment: tail water is primarily purified through a composite ecological filter bed, an artificial aquatic plant purification zone, a three-dimensional ecological floating bed and a stain-resistant plant purification zone; s2, treatment in an ecological buffer area: introducing the effluent of the ecological enhancement area into the ecological buffer area, and carrying out secondary purification on the tail water by virtue of submerged plants in the ecological buffer area; s3, treating in an ecological display area, introducing the tail water treated in the ecological buffer area into the ecological display area, and purifying the tail water for the third time; and S4, treating an ecological stable area, constructing an aquatic plant community in the ecological stable area, adding zooplankton, benthonic animals and microorganisms to optimize the community, and purifying the tail water for four times. Fish participation is not needed, nitrogen is directly removed through microorganism-plant cooperation, animals only assist in removing impurities, no additional nitrogen load exists, and therefore the stability of the system can be improved.

The invention provides a novel mudflat efficient photovoltaic breeding system. The novel mudflat efficient photovoltaic breeding system comprises an arc-shaped ditch bottom, a side ditch, a pool wall, floating objects, a duckweed growth layer, a photovoltaic panel frame, a photovoltaic panel, a pipeline, a control box, a photovoltaic panel support, a first-layer annular pillar lamp, a second-layer annular pillar lamp, a third-layer annular pillar lamp, a fourth-layer annular pillar lamp, a bottom table top and a sponge sleeve. The floating objects comprise phytoplankton and zooplankton, a storage battery, a control panel and a photoelectric detection device are arranged in the control box, the arc-shaped ditch bottom, the side ditch, the pond bottom, the pond wall and the bottom table top form a pond body mechanism facilitating fish gathering and fish lifting, and the photovoltaic panel support, the photovoltaic panel frame, the photovoltaic panel, the control box, the storage battery in the box and the control panel form a photovoltaic mechanism of the fishpond. The first-layer annular pillar lamp, the second-layer annular pillar lamp, the third-layer annular pillar lamp and the fourth-layer annular pillar lamp form a light supplementing mechanism beneficial to photosynthesis, namely growth of phytoplankton, growth of the phytoplankton is beneficial to growth of zooplankton, and growth of fishes is beneficial to growth of the zooplankton.

The utility model discloses a zooplankton sample separating device which comprises a bottom plate, a vertical plate is arranged at the upper end of the back face of the bottom plate, a lifting column is movably arranged on the front face of the vertical plate, a plurality of layers of lifting plates are evenly arranged on the lifting column, and detachable sample separating boxes are arranged in the lifting plates. A water collecting box is arranged at the upper end of the bottom plate, an opening is formed in the upper end of the water collecting box, and the opening is larger than the bottom of the sample separating box; the lifting column is driven by a driving device to ascend and descend. The driving device drives the lifting column to do reciprocating lifting motion, so that the lifting column drives the sample separation box to do reciprocating lifting motion through the lifting plate, the sample separation box has an up-down vibration effect, and sample separation of plankton by the sample separation box can be promoted; the sample separation box can be limited in the vertical direction through the limiting plate, the sample separation box can be limited in the front-back direction through the magnet block, the sample separation box can be prevented from moving when the driving device works, and meanwhile the sample separation box can be conveniently taken and placed.

The invention discloses a method for combining straw returning to field, pond fish culture and rice, fish and soft-shelled turtle / shrimp comprehensive planting and breeding, and belongs to the technical field of rice, soft-shelled turtle, fish and shrimp comprehensive planting and breeding. After rice in the rice field is harvested, straw is smashed and returned to the field, a hidden survival place is provided for crayfish seedlings, rotten straw and derived zooplankter provide bait for crayfish and fish, and the straw decomposition rate is increased by eating; after water in the rice field module becomes serious along with straw rotting, the water is discharged into the culture pond through tail water treatment engineering treatment, and the water fertility of the pond is increased; meanwhile, after eutrophication of the water body in the culture pond, the water body is discharged into the rice field after being treated by a tail water treatment project and flows into the culture pond again after being further purified by the rice field. According to the constructed mode, the straw is converted into the organic fertilizer through the crayfish and the fish, and the paddy field is adopted for purifying pond culture tail water. No breeding wastewater is discharged in the mode. The investment of aquatic product baits and rice field fertilizers is reduced, and the income and quality of rice and fishes are increased.

The present invention relates to: a feed composition for zooplankton, comprising biomass derived from Schizochytrium sp. microalgae; a method for culturing zooplankton using same; and an aquaculture method for fish or crustaceans. The biomass derived from Schizochytrium sp. microalgae of the present invention has the effect of nutritionally enriching zooplankton, and when zooplankton fed with the biomass is fed to fish or crustaceans, growth of fish or crustaceans is promoted and non-specific immunity is enhanced, and thus the biomass can be effectively used as a feed composition or a feed additive.

The present invention relates to an integrated microbial generation device, a mobile deployment vehicle, and a method, wherein the generation device includes an inlet water pretreatment module, a water quality monitoring and control module, an algae cultivation module, and a zooplankton expansion module, which are assembled in a box and connected in sequence. The algae cultivation module includes a multi-channel parallel pipeline algae cultivation component. The zooplankton expansion module includes an expansion tank, which is connected in sequence to a zooplankton capture component and a two-way pump through an external transmission pipeline. The inlet water pretreatment module, the water quality monitoring and control module, the algae cultivation module, and the zooplankton expansion module are all electrically connected to an integrated controller. The present invention has developed a set of microbial generation devices that connect in series the inlet water pretreatment, algae expansion, zooplankton expansion, and release. The device can be used for short-term closed cultivation for storage, transportation, and transfer, and can be deployed for long-term continuous expansion at a fixed point. It has good flexibility and can output algae and provide sufficient living zooplankton for aquaculture, water environment improvement, and water ecological restoration.

The invention provides a microorganism composite culture device and method, and belongs to the technical field of microorganism culture.The microorganism composite culture device comprises a frame, an algae pool, a microorganism culture pool and an algae-eating insect culture pool are sequentially arranged in the frame from inside to outside, a center cylinder is arranged in the middle of the algae pool, and a mounting partition plate is arranged in the lower end of the center cylinder; a water conveying device is arranged in the middle of the installation partition plate, the water pumping end of the water conveying device is located on the lower portion, the water drainage end of the water conveying device is located in the algae pond on the upper portion, the algae pond and the microorganism culture pond are separated through a first partition plate, a sunlight shed is arranged at the upper end of the first partition plate, and the microorganism culture pond and the algae-eating insect culture pond are separated through a second partition plate. A carrier frame is arranged in the microorganism culture pond; the algae pool, the microorganism culture pool and the algae-eating insect culture pool are distributed in the frame body, so that algae, bacterial microorganisms, corophium and algae-eating insects can be subjected to co-culture, and a compound microorganism culture system is constructed.

The invention relates to a zooplankton automatic enrichment and physiological phenotype and species identification integrated device, which comprises a zooplankton enrichment module, a physiological phenotype data acquisition module, a species data acquisition module and a data processing identification module, the physiological phenotype data acquisition module comprises an automatic sorting mechanism and a plurality of observation bins, the temporary storage bin is communicated with the observation bins through the automatic sorting mechanism, the species data acquisition module comprises a treatment liquid adding mechanism, a plurality of treatment bins, a sampling pump and a second collector, and the observation bins are communicated with the treatment bins in a one-to-one correspondence mode through pipelines provided with liquid supply pumps. The first collector and the second collector are both in signal connection with the data processing identification module. The method has the advantages that the efficiency of collecting and analyzing the basic information of the zooplankton in the water body is improved, and the pollution state and the future evolution pattern of the water body can be comprehensively predicted through the two-dimensional information of the physiological state and the variety diversity.

The invention relates to a method for generating a mask based on marine zooplankton instance segmentation, and the method comprises the following steps: 1, carrying out the pixel-level instance marking and preprocessing of an original marine zooplankton microscopic image, and obtaining sample data; 2, performing targeted fine adjustment and improvement to adapt to zooplankton scenes; and step 3, sending the sample data into the fine-tuned and improved neural network to obtain more accurate instance segmentation mask data of the marine zooplankton. Wherein the steps 2 to 3 are realized based on the convolutional neural network. According to the marine zooplankton instance segmentation mask generation method provided by the invention, more accurate instance segmentation mask data can be obtained under the condition of lacking semantic category information of zooplanktons, and end-to-end segmentation is realized.

This application relates to an ecological treatment process and structure for effluent purification, belonging to the field of effluent purification technology. It includes: S1, ecological enhancement zone treatment, where effluent undergoes preliminary purification through a composite ecological filter bed, artificial aquatic plant purification belt, three-dimensional ecological floating bed, and pollution-tolerant plant purification belt; S2, ecological buffer zone treatment, where effluent from the ecological enhancement zone is introduced into the ecological buffer zone for secondary purification by submerged plants; S3, ecological demonstration zone treatment, where the effluent treated in the ecological buffer zone is introduced into the ecological demonstration zone for tertiary purification; S4, ecological stabilization zone treatment, where an aquatic plant community is constructed in the ecological stabilization zone, and zooplankton, benthic animals, and microorganisms are introduced to optimize the community, resulting in a fourth purification of the effluent. This application eliminates the need for fish, relying on microorganism-plant synergy for direct denitrification. Animals only assist in removing impurities, resulting in no additional nitrogen load and thus ensuring the stability of the purification system.

The utility model relates to a water conservancy comprehensive information monitoring device for planktonic animals and plants, which belongs to the field of sampling devices and comprises a solar panel. A plurality of buoys are arranged on the solar panel; the floating cylinder comprises an upper cylinder, a lower cylinder and an upper cylinder, wherein a first cavity is formed in the upper cylinder; a top hole is formed in the upper surface of the upper cylinder, and a cover plate is arranged at the top hole; a second cavity is formed in the lower cylinder; water permeable holes; various types of sensors are respectively mounted on the upper surfaces of the second cavity and the upper cylinder; wherein collection assemblies are arranged in the two floating barrels, each collection assembly comprises a water drawing pipe, a water drawing pump, a water outlet pipe and a sampling barrel, and a connector A and a connector B are arranged on the side wall of each sampling barrel; and one end of the liquid outlet pipe is connected and communicated with the liquid outlet end of the stationary liquid pump, and the other end of the liquid outlet pipe is detachably connected with the connector B. The detection device can automatically collect zooplankton water samples and phytoplankton water samples, and can automatically add stationary liquid.

The application relates to the technical field of zooplankton culture, and discloses a culture method of cladoceran zooplankton and application of a blue light source, which comprises inoculating cladoceran zooplankton in a culture water body and feeding microalgae to culture the cladoceran zooplankton until the cladoceran zooplankton reaches a harvestable density; and during the culture process, the culture water body is irradiated with a blue light source in a light-dark alternating mode. On the basis of conventional water quality management and microalgae feeding, the culture water body of the cladoceran zooplankton is irradiated in a light-dark alternating mode by using a blue light source with a specific wavelength, the internal reproduction mechanism of the cladoceran zooplankton is regulated and optimized through the irradiation stimulation of the specific narrow-waveband blue light source, the population density of the cladoceran zooplankton is effectively improved, and the culture yield and production efficiency of the cladoceran zooplankton are significantly improved.

The utility model belongs to the technical field of aquaculture, and particularly relates to a zooplankton collecting device for a culture pond and the culture pond. The moving frame is arranged on the culture pond, the moving frame can do reciprocating motion along the culture pond under the driving of the power assembly, the moving frame comprises two first connecting parts and a second connecting part, and the two first connecting parts are located at the bottom of the second connecting part; a height adjusting assembly is arranged between the two first connecting parts and the second connecting part and used for adjusting the relative height of the first connecting parts and the second connecting part; the collecting component is detachably connected to the bottom of the moving frame, the collecting component comprises two mounting blocks and a collecting net, the collecting net is arranged between the two mounting blocks, and the collecting net is rotationally connected with the mounting blocks; the device has the beneficial effects of efficient and automatic collection, high environmental adaptability and the like.

The present application belongs to the field of environmental remediation technology, and particularly relates to a method for ecological remediation of heavily polluted water body with bottom mud. The method for ecological remediation of heavily polluted water body with bottom mud comprises the following steps: S1: putting heavy metal remediation agent into the water body; S2: putting slow-release type bottom mud remediation agent into the water body; S3: sequentially putting algae-controlling microorganism, photosynthetic bacteria and EM bacteria, and plankton into the water body; S4: planting aquatic plants according to water depth; planting emergent plants in the area with water depth less than 0.5 m, and planting submerged plants in the area with water depth greater than or equal to 1.5 m; and S5: when the coverage rate of aquatic plants in the water body is greater than or equal to 80%, putting aquatic animals into the water body. In the present application, slow-release type bottom mud remediation agent and heavy metal remediation agent are used to reduce the pollution of bottom mud, organic matter, etc., the transparency of the water body is then improved after reduction, aquatic plants are then planted, and finally aquatic animals are put into the water body, so as to construct a water ecological system and achieve the purpose of ecological remediation of the water body.

This invention provides a method for constructing an ecological lake wetland aquatic plant and animal community system. The method includes dividing the lake to be restored into two zones according to water flow direction and terrain. Then, bottom sediment improvement, planting of submerged plants, addition of amendments, and algae-controlling zooplankton are carried out in each zone. Ecological floating islands are constructed and emergent plants are planted. Aquatic animals are introduced, followed by routine management. Water purification devices containing EHBR membrane modules are installed near the lake inlet and in areas with higher terrain. This constructs an ecological lake wetland aquatic plant and animal community, achieving long-term ecological restoration of the lake. Furthermore, the introduction of EHBR membrane modules can reduce organic pollutants in the lake at lower temperatures, significantly extending the restoration time and ensuring that the lake's water quality remains stable for an extended period.

The application relates to the technical field of zooplankton sampling, and discloses a zooplankton sampling device for marine biological investigation and a method thereof, which solves the problem of low sampling efficiency, and comprises a control box, a moving camera and a propeller are arranged on the top of the control box, a power supply and a controller are arranged in the control box, a horizontal propeller rotating pair gear is arranged outside the control box, a horizontal moving propeller is arranged on the left side of the horizontal propeller rotating pair gear, a sampling box is fixed to the bottom of the control box, a light source is arranged in the sampling box, a sampling inlet pipe is arranged on the left side of the sampling box, a filter screen moving track is fixed to the bottom of the sampling box, a filter screen is arranged in the filter screen moving track, and a sampling outlet pipe is fixed to the bottom of the filter screen moving track; the light source can effectively prevent the zooplankton in the sampling box from swimming out of the sampling inlet pipe, so that the sampling effect is ensured, and the authenticity of sampling is further improved.

The invention discloses intelligent plankton analysis equipment which is characterized in that automatic loading of plankton samples is automatically completed through an automatic sampling system, then image scanning is carried out on the plankton samples through an automatic scanning system, and finally intelligent identification analysis is carried out based on scanned images through an intelligent analysis system. The whole process is automatically carried out, the phytoplankton and the zooplankton can be analyzed at the same time only through one sample, the detection time is greatly shortened, the efficiency of plankton population analysis is improved, human intervention is not needed, the recognition and analysis process is not affected by subjective factors, and the method is suitable for popularization and application. And the consistency and the accuracy of analysis results are ensured.

The invention relates to the technical field of river and lake ecological evaluation, in particular to a river and lake water system aquatic organism integrity evaluation method which comprises the following steps: collecting aquatic organisms; counting the number of functional group classes of the benthonic animals and the fishes; testing delta 15N and delta 13C of the collected aquatic organisms, making a scatter diagram, calculating a union of delta 15N and delta 13C distribution ranges of phytoplankton and zooplankton, and taking an overlapping area proportion of delta 15N and delta 13C distribution ranges of fishes as an overlapping degree; calculating the average nutrition level of the fish; and calculating and evaluating the food web structure of the aquatic organisms in the river and the lake and the integrity of the aquatic organisms in the water system according to the number of functional group classes, the overlapping degree and the average nutritional grade score of the fishes. According to the method, a certain water body is comprehensively evaluated, a clear evaluation standard is given, and the method has the advantages of being simple and easy to operate, avoiding randomness and the like.

The application discloses a blue-green algae ecological restoration system and an ecological restoration method, which comprise a regional monitoring assembly, a video real-time supervision center module, a data acquisition analysis conversion module, a customer prompt terminal and a gigabit network cloud end; a plurality of regional monitoring assemblies are arranged around the ecological water area range, and the data output end of the regional monitoring assembly is connected with the data acquisition management module end. The blue-green algae ecological restoration system and the ecological restoration method can degrade harmful substances such as ammonia nitrogen, nitrite, sulfide, BOD and COD in water, eliminate peculiar smell of water, improve water quality and water bottom, enhance photosynthesis of phytoplankton in water, promote growth of zooplankton and phytoplankton, balance reproduction of algae in water, effectively inhibit outbreak of blue-green algae, reduce heavy metal ions in water through multiple effects such as ion exchange, complexation and adsorption of biochemical metabolism, improve water transparency, adjust ecological balance of water, and maintain ecological self-purification ability of the aquatic environment.

The utility model relates to the technical field of zooplankton experiment instruments. A novel counting frame integrating zooplankton classification counting and individual anatomy measurement comprises a counting frame body, and the counting frame body comprises an anatomy area and a counting area which are arranged front and back. A strip-shaped notch is formed in the dissecting area and is connected with a dissecting bearing sheet in a sliding manner; a scale mark is arranged on the counting frame main body, and the scale mark is adjacent to the strip-shaped notch; the counting area is provided with a circuitous groove, the groove comprises transverse channels which are arranged from front to back, the adjacent transverse channels are communicated with each other through a connecting channel, the end part, far away from the dissecting area, of the groove extends to the edge of the counting frame main body, and the end part, far away from the dissecting area, of the groove is detachably connected with a plugging piece. According to the zooplankton dissecting device, zooplankton needing to be dissected can be conveniently and directly moved to the dissecting bearing piece to be And the length of the individual can be measured through the scale marks.

The invention provides a cascade development river ecosystem health condition evaluation method based on a zooplankton biological integrity index, and belongs to the field of river ecosystem protection. The invention provides a method for evaluating the health condition of an existing cascade development river ecosystem and the limitation and deficiency of long-term tracking monitoring evaluation of the existing cascade development river ecosystem health condition evaluation method. Sampling survey method based on zooplankton biological integrity, zooplankton biological integrity index evaluation basic index system, zooplankton biological integrity index evaluation selection index system construction and zooplankton biological integrity index (Z-IBI)-based zooplankton biological integrity index (Z-IBI) Through the four parts of the cascade development river ecosystem health condition evaluation criterion system, a clear, complete, detailed and quantifiable evaluation criterion system is provided for cascade development of river water ecosystem health condition change and river ecosystem long-term tracking, monitoring and evaluation. Therefore, a scientific, simple, easy and economical evaluation method is provided for optimizing a river cascade development scheme and carrying out river ecosystem health condition evaluation and fixed-point long-term tracking monitoring.

The application provides a method for evaluating ecological risk of microplastics based on population and community indexes, and belongs to the technical field of pollutant risk evaluation. The application studies the influence of microplastic concentration and particle size on the filter-feeding speed of Daphnia magna, analyzes the relationship between microplastic intake and algal morphology, and studies the influence of microplastics on the movement ability and filter-feeding of Daphnia magna after the microplastics are taken into the body, so as to evaluate the ecological risk of microplastics at a concentration far below the lethal concentration from the perspective of population and community. It is found for the first time that Daphnia magna will mistake microplastics similar in size to algal cells as food, and after the microplastics are taken into the body, the behavior characteristics of zooplankton will be affected, so that the harm of microplastics to zooplankton is comprehensively evaluated from the perspective of behavior and interspecific relationship. The application provides a new idea for evaluating ecological risk of microplastics from the perspective of population and community, and provides a basis for correctly formulating pollutant emission standards.

The invention provides an aquatic biosensor and equipment for monitoring water pollutants and water quality, living zooplankton is accommodated and exposed in a water sample to be detected through a biological sensing unit, and multi-modal data of the zooplankton is acquired through a multi-modal information acquisition unit; carrying out processing and feature extraction on the multi-modal data through a signal processing and feature extraction unit to obtain feature parameters; and performing data fusion analysis on the characteristic parameters by adopting an artificial intelligence model through a water quality evaluation and early warning decision unit to obtain a water quality comprehensive toxicity index, a pollutant type judgment result and an early warning grade. According to the technical scheme, the real-time data acquisition and analysis capability, the accurate early warning function and the pollution tracing capability can be realized, the system is suitable for various application scenes, and the continuous online water quality safety monitoring can be realized.