16 results about "Seaweed farming" patented technology

The present invention provides a seaweed fertilizer material that allows for easy and inexpensive fertilization and supplemental fertilization of seaweed, as well as enabling the strengthening and reuse of cultivation ropes, a seaweed cultivation facility equipped with this material, a method for manufacturing the seaweed fertilizer material, and a method for cultivating seaweed. [Solution] The seaweed fertilizer material 1 according to the present invention is a seaweed fertilizer material 1 for fertilizing seaweed, and contains raw rubber and shell powder obtained by grinding the shells of marine organisms into powder, and is formed in the form of a sheet or string. The shell powder may be powder from sea urchin shells, and may further contain iron fulvic acid.

A seaweed farming system for farming of seaweed in a water body is described herein. In an embodiment, the seaweed farming system includes a seaweed farm operating assembly which further includes a harvesting unit to separate vegetative portion of seaweed from mature seaweed. The mature seaweed can grow on a plantation substrate. The seaweed farm operating assembly also includes a seeding unit to receive the vegetative portion of the seaweed from the harvesting unit and to sow the vegetative portion of the seaweed in a fresh plantation substrate.

The invention relates to the technical field of sargassum fusiforme cultivation, and discloses a sargassum fusiforme male frond living environment analysis regulation and control system and method.The analysis regulation and control system comprises a multi-source data acquisition module, a gender recognition and physiological state analysis module, a dynamic environment regulation and control module, a biological prevention and control module and a risk prediction and feedback module; the analysis regulation and control method comprises the following steps: acquiring environmental parameters and frond physiological data; identifying the gender and the physiological stage of the frond; dynamically regulating and controlling environmental parameters; executing biological prevention and control; and risk prediction and feedback regulation and control are carried out. Through intelligent, dynamic regulation and control, real-time monitoring, biological prevention and control and other technologies, the survival rate of the male algae is increased, the sperm discharge period of the male algae is prolonged, the fertilization rate during manual seedling collection is increased, and sustainable development of ecological environment protection and algae culture is promoted.

The present invention relates to a system (100) and method for sensing and monitoring marine environment. The system (100) comprises the primary components of a buoy (102), at least one gateway (104), at least one data concentrator (106), and a private cloud computing unit (108). Plurality of sensors (110-1,110-2... 110-n) are embedded with the buoy (102) for the acquisition of various physical, chemical and biological data of marine environmental conditions. The invention also relates to method of organizing such buoys (102) and directed towards providing a command, control and communicating through the gateway (104), and cloud computing unit (108) which is coupled with IoTs establishing an effective functioning between plurality of buoys working in conjunction with each other. The invention also relates to providing a method of measuring various parameters in the marine environment relating to seaweed cultivation through the buoy (102).

The present application provides a kind of seaweed field habitat marine engineering equipment, which solves the problem that the existing algae, shellfish and fish culture are greatly influenced by natural factors such as ocean and weather, and the single ecological environment of culture. It comprises a main frame assembly and a culture raft assembly arranged inside the main frame assembly. The main frame assembly is a floating body frame structure that can adjust its weight by water injection or drainage. The top of the main frame assembly is provided with corresponding tensioning lifting mechanisms at both ends, and the culture raft assembly is horizontally suspended between the corresponding tensioning lifting mechanisms. The inside of the main frame assembly is provided with a net. The present application is widely used in the field of ocean engineering technology.

The application discloses a seaweed cultivation remote sensing extraction method and system based on relative darkness and time sequence stability. In view of the problems that the traditional spectral method is easily disturbed by the water environment and the deep learning method depends on a large number of samples, the application provides an unsupervised extraction scheme, and the core steps of the scheme include the following steps: a morphological structure element suitable for the size of a cultivation raft is constructed, the background of the sea surface is inhibited through morphological bottom-hat transformation, the weak'relative dark' signal of the large seaweed is reversed and enhanced into an 'absolute bright' signal with high signal-to-noise ratio, the position of the cultivation raft is fixed, the time sequence median synthesis is further conducted on the enhanced image sequence, the moving noise is automatically filtered out, and the growth cycle signal is completed, and finally, the extraction is realized through adaptive threshold segmentation. The application is free from the dependence on absolute spectral values, has high robustness and calculation efficiency, and is suitable for large-scale business mapping under complex sea conditions.

This invention discloses a red tide control method based on year-round cultivation of Gracilaria fusiforme, belonging to the field of red tide control. The method includes: selecting sea areas requiring prevention or restriction of red tide outbreaks, or adjacent sea areas, as cultivation zones; using heat-resistant and rapidly growing Gracilaria fusiforme seedlings; and implementing a year-round multi-crop rotation cultivation system centered on seedling introduction from April to September to ensure that Gracilaria fusiforme is in its vigorous growth period during the peak red tide season in summer, continuously absorbing nutrients such as nitrogen and phosphorus from the water, thus achieving dynamic regulation of nutrient levels in the sea area and suppressing red tide occurrences at the source. This invention, through year-round multi-crop rotation cultivation, precisely covers the peak red tide season in summer, breaking through the bottleneck of the misalignment between traditional seaweed cultivation and red tide control. Simultaneously, as an economically valuable seaweed, Gracilaria fusiforme can create significant socio-economic benefits during ecological restoration, forming a long-term mechanism that synergizes environmental, ecological, and economic benefits, providing an efficient, environmentally friendly, and economically valuable innovative solution for red tide control.

The application discloses a land-based factory cultivation method of red seaweed of the genus Devalera, and belongs to the technical field of seaweed cultivation. The method comprises the following steps: preparation and construction of a cultivation system; preparation of a seed fixing net; inoculation and planting of the red seaweed of the genus Devalera; red seaweed seedling supplement; daily management and environmental regulation; harvesting of the red seaweed of the genus Devalera; and continued cultivation after harvesting. The red seaweed seedlings of the genus Devalera are planted on the seed fixing net in the cultivation pond, so that the stability of the red seaweed seedlings is enhanced; the red seaweed seedlings left after harvesting can be continuously cultivated, so that the cultivation times are increased; the cultivation water is circulated to cultivate the red seaweed seedlings, so that the stability of the whole cultivation ecological environment is maintained; and the cultivation water can be directly used for animal cultivation after being output. The circulation cultivation method increases the stability of the cultivation water body, reduces the breeding of exogenous microalgae and epiphytic weeds, improves the yield and quality of the cultivated varieties, and is favorable for the popularization of the large-scale cultivation of the seaweed.

The application discloses a seaweed deep-sea cultivation floating body equipment based on a novel paper folding structure, which comprises a main rod, a plurality of cultivation rods, a plurality of auxiliary rods, an extension rod, a fixing block, a sliding block, a limiting block, a base, a plurality of cultivation paper folding floating bodies, a connecting bearing, a buoyancy ball, an anchor and an anchor chain; the fixing block and the base are fixed at the top end and the bottom end of the main rod respectively, and the sliding block is slidably sleeved on the main rod; the two ends of the extension rod are connected with the sliding block and the base respectively; the cultivation rod and the auxiliary rod are hingedly connected on the fixing block and the sliding block respectively, and the free end of the auxiliary rod is hingedly connected with the cultivation rod; the cultivation rod can change between an unfolded state and a folded state through sliding of the sliding block along the main rod; the buoyancy ball is fixed on the top end of the main rod, and the cultivation paper folding floating body is arranged on the cultivation rod; the cultivation paper folding floating body has a cavity capable of filling nutrient substances, and the surface of the shell body has a hollow structure. The seaweed deep-sea cultivation floating body equipment can meet the requirements of seaweed cultivation adhesion and nutrient carrying in deeper sea areas.

The invention provides a dynamic simulation method for a seaweed culture water environment in an open sea area, which comprises the following steps of: arranging a plurality of space observation points at a seaweed culture bay, and acquiring seawater salinity, actually measured concentration of dissolved organic carbon and geographical location information of each observation point; based on two-end-member mixed analysis of a fresh water end member and a seawater end member, constructing a hydrological background correction model, and calculating the conservative mixed concentration of dissolved organic carbon at each observation point; constructing a two-dimensional hydrodynamic exchange model, simulating a bay water body flow and exchange process, and outputting water body half-exchange time and daily average water body exchange flow of each observation point; coupling the hydrological background correction model and the hydrodynamic force exchange model, and calculating the net flux of the dissolved organic carbon of the algae source at each observation point in combination with the actually measured concentration of the dissolved organic carbon at each observation point; constructing a coupling model of algae growth and dissolved organic carbon release based on the net flux of algae source dissolved organic carbon at different culture time; the simulation and prediction of the net flux of the dissolved organic carbon of the gulf algae source along with the culture time change are realized.

The invention belongs to the technical field of life cycle evaluation methods, and relates to a seaweed cultivation carbon footprint accounting method based on life cycle evaluation, and the life cycle evaluation method is used for evaluating various environmental loads of a seaweed cultivation system, namely kelp, undaria pinnatifida, laver, eucheuma and gracilaria. First, a life cycle boundary of a seaweed culture system is determined. Secondly, data such as material input, energy consumption and waste discharge of the system are collected, and life cycle list analysis is carried out; then, modeling is carried out on the breeding system by utilizing GaBi software, and the environmental influence of the breeding system is quantified by adopting a ReCiPe 2016 v1.1 Midpoint (H) method; and finally, comprehensively analyzing the result, identifying key links influencing carbon emission, and providing corresponding optimization and improvement measures. The invention provides a scientific basis for low-carbon development of global seaweed breeding industry.

The present invention relates to a system (100) and method for sensing and monitoring marine environment. The system (100) comprises the primary components of a buoy (102), at least one gateway (104), at least one data concentrator (106), and a private cloud computing unit (108). Plurality of sensors (110-1, 110-2 . . . 110-n) are embedded with the buoy (102) for the acquisition of various physical, chemical and biological data of marine environmental conditions. The invention also relates to method of organizing such buoys (102) and directed towards providing a command, control and communicating through the gateway (104), and cloud computing unit (108) which is coupled with IoTs establishing an effective functioning between plurality of buoys working in conjunction with each other. The invention also relates to providing a method of measuring various parameters in the marine environment relating to seaweed cultivation through the buoy (102).

This invention relates to the field of water environment management and ecological restoration technology, and discloses a biofilm reactor for purifying seaweed farm water quality, including a support frame, an outer cylinder, an inner cylinder, a spiral guide plate, and a self-cleaning component. The inner cylinder is coaxially arranged inside the outer cylinder, and the annular gap between the two is filled with a spiral guide plate containing mass transfer through holes. A closed aeration pipe is provided at the bottom of the inner cylinder. The rising airflow generated by the aeration pipe drives a serrated impeller located inside the inner cylinder to rotate. The serrated impeller drives a scraper to circumferentially scrape along the inner wall of the inner cylinder through a central rotating shaft and a connecting frame. This invention utilizes the fluid kinetic energy generated by the airlift effect to enhance gas-liquid mass transfer by cutting and refining air bubbles at high speed through the serrated impeller without the need for an external motor. At the same time, it drives the scraper to automatically remove aging biofilm and scale from the inner cylinder wall, effectively solving the problems of easy clogging and low dissolved oxygen efficiency of biofilm reactors in seaweed farm water quality environments. It has the advantages of stable operation, maintenance-free operation, and low energy consumption.

A rope (1A) for seaweed cultivation comprises: a nurturing rope (5) to which seaweed is adhered; a wire (6) attached to the nurturing rope (5); and a magnesium rod (7) that is supported by the nurturing rope (5), is formed from a metal material having a higher ionization tendency than the wire (6), is electrically connected to the wire (6), and supplies electrons to the wire (6) when installed in the sea. The wire (6) may be spirally wound between the strands of the nurturing rope (5). The magnesium rod (7) may be suspended at one end of the nurturing rope (5).

The application discloses a seaweed carrying capacity intelligent evaluation method and system, and belongs to the technical field of seaweed intelligent management. The seaweed carrying capacity intelligent evaluation method comprises the following steps: collecting water quality parameters and water samples in real time, wherein the water quality parameters include dissolved inorganic nitrogen concentration, water temperature and light intensity; establishing a seaweed growth dynamic evaluation model coupled with hydrodynamics-ecosystem; dividing the target water area into multiple evaluation units according to the real-time collected data, and online calibrating the key physiological parameters in the established seaweed growth dynamic evaluation model to obtain the calibrated model; based on the calibrated model, setting multiple different seaweed cultivation density scenarios for simulation, predicting the biomass change of seaweed under each scenario and the influence of seaweed on water quality, and evaluating and outputting the seaweed carrying capacity according to the preset ecological threshold and index; and sending the seaweed carrying capacity obtained by evaluation to a remote monitoring center.