10 results about "Benthos" patented technology

The utility model discloses a river benthos sampling and analyzing device, and relates to the technical field of sampling devices. The sampling and analyzing assembly is used for sampling excreted sediments of river benthos, and the sampling and analyzing assembly comprises a sampling cylinder and a balancing weight fixedly arranged at the bottom end of the sampling cylinder; and the lifting assembly is used for automatically lifting the sampling analysis assembly. According to the river benthic organism sampling and analyzing device disclosed by the utility model, the sampling and analyzing component is arranged, so that when the device is used for sampling excrement of river benthic organisms, the aim of automatically sampling the excrement of the river benthic organisms is fulfilled, and in the sampling process, the excrement of the river benthic organisms can be automatically sampled. The rotation of the small motor can drive three L-shaped rods and bristles to stir the river bottom, so that excrement around the bottom end of the sampling barrel can be raised and is sucked into the sampling barrel, the purpose of sampling the periphery of the sampling barrel in a large range is achieved, and the sampling sufficiency is improved.

The utility model discloses a ship submarine organism cleaning robot, including main body frame, mobile system, cleaning execution system, adsorption balance system and identification system. Mobile system is by multi -freedom degree mechanical leg and the constitution of the Mecanum wheel, realizes the omni -directional movement on complex surface. The cleaning execution system is by rough cleaning wheel and fine cleaning wheel composition, through the gear set and transmission chain synchronous drive, utilizes the speed difference and spring pressure adjusting assembly to realize grading high -efficient cleaning. Adsorption balance system is by electromagnet, counter -thrust rudder and compressed air bag constitute, and cooperatively provide stable adhesion and attitude control. The identification system includes camera, LED lamp and main control unit, can intelligent identification ship body attachment and dynamic adjustment cleaning strategy. The utility model can be stable operation in underwater complex environment, realizes the efficient, accurate cleaning of the attachment such as acorn barnacle, algae, improves the ship operation efficiency and prolongs the service life.

The invention discloses a benthic organism distribution measurement method and device influencing the conductivity of a water body, and relates to the technical field of aquaculture, and the method comprises the steps: dividing a target water area into measuring point grids; setting background conductivity in the non-target organism area; synchronously measuring the conductivity, the temperature and the water depth of the water body at the measuring point grid, and collecting the conductivity gradient in a vertical set range; correcting the original conductivity into normalized conductivity by using the temperature coefficient and the water depth coefficient; calculating a biological conductivity difference value; when the biological conductivity difference value exceeds a preset threshold value and lasts for a certain time, biological negative anomaly is judged; inverting the position of the target organism by taking the biological conductivity difference value as input; after all the positioning points in the grid are clustered, estimating a target biomass quantity; splicing each grid result, and outputting a target biological density distribution diagram and a total amount; according to the method, the accuracy of benthic organism distribution measurement is improved through conductivity space-time mapping and a spherical intersection algorithm.

The invention discloses a tidal flat benthonic animal distribution prediction method based on remote sensing satellite data, and relates to the technical field of tidal flat benthonic animal distribution research, and the method comprises the steps: obtaining habitat feature data through inversion according to the remote sensing satellite data, and carrying out the preprocessing; sea surface temperature data are obtained according to remote sensing satellite data and preprocessed; sampling a target area to obtain samples and benthonic animal sampling data, and preprocessing the samples and the benthonic animal sampling data; dividing the preprocessed habitat feature data, sea surface temperature data and benthonic animal sampling data into a training set and a verification set, establishing a machine learning model, and pre-training the machine learning model; selecting an optimal hyper-parameter of the machine learning model based on a particle swarm optimization algorithm; and verifying the fitting degree of the machine learning model based on the verification set to screen out an optimal model, and obtaining a benthonic animal prediction distribution diagram by using the optimal model. According to the method, the benthonic organism data is fused with the optimization algorithm and the machine learning model, so that the prediction precision of the benthonic animal distribution of the tidal flat is improved.

The invention relates to the technical field of ecological monitoring, and discloses a key habitat element identification method and device for benthonic animals in a diversion lake, and the method comprises the steps: normalizing the multi-source environment and biological data of a target diversion lake, and carrying out the quality control fusion according to ecological monitoring specifications, and forming a standardized environment-biological data set; constructing a data network topological structure by taking a preset ecological mechanism library as a base, taking habitat elements as a middle layer and taking benthonic animal states as a top layer; fitting topological structure nodes and key edge parameters to obtain a parameterized causal relationship network; a habitat element node intervention value is set, anti-fact intervention simulation is carried out, and a benthonic animal state continuous response value is obtained; discretizing the response value according to a preset ecological grade standard to obtain benthonic animal state simulation distribution; quantitatively simulating the distribution causal effect intensity, and sorting the key habitat elements to form a key habitat element list; according to the invention, the key habitat element identification efficiency can be improved.

The invention discloses a modular ecological protection and scour prevention integrated device of an offshore wind power foundation and a construction and maintenance method. The device is arranged around an offshore wind power foundation and comprises an annular support, an anti-scour assembly and an ecological protection module assembly. The annular supporting and anti-impact assembly comprises a rigid inner ring plate, a rigid outer ring frame, a rigid supporting plate and an interlocking block soft mattress. The rigid inner ring plate is fixedly connected with the circumferential outer wall of the offshore wind power foundation; the rigid outer ring frame is arranged on the circumferential outer side of the rigid inner ring plate in a surrounding mode. The opposite sides of the rigid inner ring plate and the rigid outer ring frame are connected through a rigid supporting plate. An interlocking block soft body row is arranged on the upper surface of the rigid outer ring frame in a surrounding manner; the ecological protection module assembly comprises a bionic aquatic plant frame module; and the bionic aquatic plant lattice module is arranged between the rigid inner ring plate and the rigid outer ring frame. According to the offshore wind power foundation, scouring of the seabed around the offshore wind power foundation can be slowed down, meanwhile, an inhabiting space is provided for benthos, and unitized replacement and long-term monitoring are facilitated.

The present application belongs to the field of environmental pollution and environmental chemistry, and particularly relates to a model and method for simulating the marine environmental behavior and food web migration of typical persistent organic pollutants. The model comprises atmosphere, seawater (including suspended particles), sediment (including pore water), and a food web unit composed of multi-trophic level organisms (including plankton, benthos and fish of different diets). The present application integrates biological energy science and input parameters of aquaculture activities (such as feed delivery, residual feed loss, and fecal excretion), and constructs a multi-medium non-steady-state fate model of the aquaculture marine ecosystem. The model can accurately quantify the cross-medium flux of organic pollutants (such as PFAS, PCBs, DDTs, pesticides, etc.) between the "aquaculture source-environment-organism", realizes the quantitative tracing of the environmental contribution rate of aquaculture activities, and can predict the temporal and spatial distribution and enrichment level of pollutants in wild fish, thereby providing a scientific basis for the ecological risk management of the marine aquaculture area and the overall marine environment.

The utility model relates to a kind of intelligent portable deep layer collection benthos device, the top of hemispherical cover is fixed with arc handle, and the bottom plate of hemispherical cover is opened with hanging hole;Maintenance door is arranged on the opening of the side wall of hemispherical cover;Visual digital display module is embedded in the side wall of hemispherical cover;DC motor is fixed in the inside of hemispherical cover, and its output shaft is connected with winding wheel disc, winding wheel disc is wound with wire rope, and the lower end of wire rope is movably arranged in hanging hole;Internal control component is fixed in the inside of hemispherical cover;The DC motor is electrically connected with internal control component, and internal control component is connected with visual digital display module.Utilize arc handle and corresponding frame pole, through buckle interaction, increase the overall stability when the device works and facilitate staff to carry.

This invention belongs to the field of ecological risk assessment, specifically relating to a method for assessing the ecological risk of heavy metals in sediments based on the heavy metal tissue residues of benthic organisms. The method includes the following steps: (1) extracting and testing the total amount and occurrence forms of heavy metals in surface sediment samples from the target watershed, and effectively indicative of their presence in organisms. i Heavy metal content C i (2) Construct the first sediment in the target watershed. i Biosafety thresholds for heavy metals as effective indicator organisms P i (3) Based on the improved single-factor tissue residue index (TI) and the comprehensive tissue residue index N TI This invention classifies the ecological risks of a single heavy metal element in sediments to a target watershed, as well as the combined ecological risks of multiple heavy metal elements to the target watershed. This invention will provide important reference and basis for assessing the effectiveness of existing remediation measures and for developing scientific plans for the remediation of heavy metal pollution in sediments.

This invention provides a hollow reef assembly with a seaweed-like structure. The assembly comprises multiple stacked reef blocks, each a rectangular concrete block. A rectangular channel is located in the center of each reef block, with its opening on the upper surface. Four grooves connect the opening to the four sides of the rectangular channel and are communicatively connected to it. A metal mesh is installed inside the rectangular channel, and a seaweed-like structure is inserted through it, with its top extending above the upper surface of the reef block. The grooves divide the upper surface of the reef block into four areas, each covered with seaweed. This invention, by incorporating the seaweed-like structure on the reef surface, allows marine life to gather and cling, compensating for the lack of shelter during certain seasons when seaweed is absent. The metal mesh not only secures the seaweed-like structure but also provides additional support.