413 results about "Phytoplankton" patented technology

The cultivation of terrestrial plants in brackish water or seawater is carried out with this invention. A light-weight, floating growth medium package (FGMP) or, alternatively, a sheet of suitable material is used to support the growth of terrestrial plants floating on water bodies of various salinity, including 100% seawater in marine environments. The FGMP units can be linked together and confined in a floating, rigid or flexible framework to form a floating seawater cultivation platform (FSCP). Using the method, plants were able to grow and thrive on the FSCP floating on 100% seawater in a sustainable manner. Halophytic akulikuli (Sesuvium portulacastrum L.) can regenerate its shoot and root in seawater. Thus, the discovery will enable us to practice marine agriculture, or agriculture on the sea. The FSCP can be used for wide range of purposes, from environmental protection to landscaping to crop production.

The invention (the process, its supporting devices, and applications) serves the endeavor of shellfish aquaculture. The invention improves and innovates: 1) tidally powered systems for raising shellfish seed, 2) grow-out, 3) brood stock conditioning, 4) market conditioning, & food supplement, 5) hatchery systems, 6) hatchery/nursery integration, resource sharing and optimization, ergonomics and economics, 7) water treatment, 8) Propulsion, 9) Anchorage, 10) Security, and 11) Devices for the Integration of Neighborhood Values and Shellfish Production. Such large increased economies of production suggest new uses for shellfish. Shellfish grow-out can provide cost effective and ecologically advantageous infrastructure benefits to eroding beaches, unstable channels, and water quality and the health of estuaries in general. The system is flexible in operation so that it may maximize the use of estuarine tidal energy and phytoplankton in order to maximize the ecological and economic benefits of the operation. The system is designed with particular attention to Virginia and Federal law so that permitting needs are minimized. Moreover the system is optimized to fit in well with the estuarine community and be a desirable, unobtrusive neighbor.

The invention discloses a method for ecological restoration and water quality conservation of river water. according to the method, an aeration oxygenation system consists of a solar cell panel, a support connector, an air pump, an aeration tube and an air distribution plate and is used for maintaining the dissolved oxygen level in the water; an ecological floating bed system consists of a strong buoyancy carrier and an emergent aquatic plant and is used for removing pollutants out of water and gathering and transferring heavy metal; and a filler system is used for providing a lot of adhesion habitats for microbial flora, phytoplankton, protozoon and tiny metazoan so as to co-build and form a biological membrane which efficiently and quickly purifies the pollutants. By adopting the method, the organic matters such as COD, nitrogen, phosphorus and the like, and other pollutants in the water can be efficiently removed, the water is purified, an ecological system of the river way is improved, and the self-cleaning capacity of the water is restored.

The invention discloses a discrete three-dimensional fluorescence spectrum-based phytoplankton identification and measurement method and a discrete three-dimensional fluorescence spectrum-based phytoplankton identification and measurement device. The measurement method comprises the following steps: selecting a characteristic fluorescence peak which corresponds to different photosynthetic pigments as an analytic target according to fingerprint characteristics of a phytoplankton fluorescence spectrum, maintaining the phytoplankton characteristic information in the three-dimensional fluorescence spectrum to the greatest degree, fitting a characteristic spectrum of the sample according to each characteristic spectrum in a standard discrete three-dimensional fluorescence spectrum library, and inverting the types and the content of the phytoplankton in the sample. According to the measurement device, a multiband light-emitting diode (LED) array serves as an excitation light source, and a multiband light filter group serves as a band selector for receiving fluorescence. The device is simple and compact in structure, small in size and convenient to carry and is suitable for identification and measurement of field phytoplankton, the phytoplankton identification and measurement method provided by the invention is combined, so that rapid classified measurement on the phytoplankton site can be realized.

The invention discloses an analysis method of remote sensing inversion of water color parameters of inland class II water. According to the method, inherent optical quantity of the class II water is inverted with an improved QAA (quasi-analytical algorithm), and concentration inversion of the water color parameters such as chlorophyll a and suspended matters is realized based on the inverted inherent optical quantity of the class II water. The method comprises specific steps as follows: (1), data of remote sensing reflectance above the surface of the water is input, parameter inversion of the inherent optical quantity of the water is realized based on the improved QAA, and absorption coefficients and scattering coefficients of the water and absorption coefficients of phytoplankton are acquired; (2), concentration data of the chlorophyll a and concentration data of the suspended matters of the water at a sampling point are input, a chlorophyll a concentration quantitative inversion model is established according to the concentration data of chlorophyll a and the absorption coefficients of the phytoplankton, and a suspended matter concentration quantitative inversion model is established according to the concentration data of the suspended matters and the absorption coefficients of the water after removal of pure water; (3), hyperspectral data finishing atmospheric correction are input, and concentration inversion of the water color parameters of the inland class II water in a monitoring area is realized according to the step (1) and the step (2).

An apparatus employs a plurality of transducers distributed along a cable to sample a medium. Some of the transducers may be operated according to various sequences which specific wavelengths and/or magnitudes of emission of electromagnetic energy. Some of the transducers sample, detect or measure responses of the fluid medium to the emissions. Various other transducers may sample or measure temperature, depth or pressure, and flow characteristics of the fluid medium, and optionally flow characteristics above a surface or above a surface of the fluid medium. Such may allow identification and/or characterization of characteristics of the fluid medium and/or substances (e.g., contaminants for instance petroleum, phytoplankton, red tide microorganisms, nutrients, dissolved oxygen or other gasses). The apparatus may communicate with remote facilities, allowing monitoring, remote control, and/or analysis with or with information from other platforms.

The invention discloses a solar aeration-plant bed supported device with a biological membrane. The device is characterized in that a solar cell, a supporting connecting device, an air pump, an aeration pipe and an air distribution pipe are combined to form an aeration system, a strong buoyancy carrier and an emergent aquatic plant form an ecological floating bed system; a filler system provides a place for lots of microbial floras, phytoplanktons, protozoa and micro-metazoons to attach and live; all the systems are co-built to form a biological membrane capable of effectively and quickly purifying contaminants. The solar aeration-plant bed supported device with the biological membrane is capable of effectively removing organic matters and other pollutants such as COD (Chemical Oxygen Demand), nitrogen and phosphorus in water, purifying water, improving the ecological system of the river, helping recovering the self-cleaning ability of water and also achieving certain environment beautifying effect.

The invention aims to develop a flow-cytometry-based method for rapidly measuring heterotrophic bacteria in a eutrophic lake. The method is a flow-cytometry-based bacterium counting method. The method comprises the following steps of fixing a sample, performing ultrasonic processing, filtering, performing SYBR Green I dyeing, detecting the heterotrophic bacteria by utilizing a flow cytometer, and acquiring forward and lateral scattering light, an SYBR Green I green fluorescence signal and a chlorophyll a red fluorescence signal of autotrophic plankton, wherein the SYBR Green I green fluorescence signal is used for setting a threshold value; and eliminating the influence of the nannoplankton on bacterium detection by utilizing the forward and lateral scattering light, separating the plankton from abiological particles and cellular debris according to the intensity of the SYBR Green I green fluorescence signal, and separating the bacteria from phytoplankton according to the intensity of the chlorophyll a red fluorescence signal of the autotrophic plankton, thereby obtaining the accurate number of the heterotrophic bacteria. The method has the time-saving and labor-saving effects, the large-scale ecological survey can be developed, and the counting precision and accuracy of the bacteria are improved.

The invention relates to a remote sensing retrieval method for extracting chlorophyll concentration distribution information of a complex water body, which comprises the steps: receiving MODIS L0 data of a CMACast data transmission system in real time, and decoding to convert to a MODIS L1b data product in a hdf format; performing atmosphere correction on the MODIS L1b data product; performing dual optimization iteration chlorophyll inversion by reflection rate data subject to atmosphere correction. A GSM algorithm and a semiempirical algorithm of LI Zhongping are combined with a chlorophyll inversion algorithm, absorption scattering optical characteristics of phytoplankton are inverted by adopting twice nonlinear optimization iteration, thus avoiding influence of absorption fluorescent characteristics of CDOM on a reflection rate spectrum, more accurately extracting chlorophyll concentration information, and providing technical support for a water color remote sensing inversion algorithm.

The invention relates to a method and an apparatus for detecting living phytoplankton cells and/or microorganisms in or out of water, particularly ballast water, bodies of water, sewage, or water in swimming and bathing devices. Said method is characterized by the following steps: the variable fluorescence (Fv) is calculated by forming the difference between the maximum fluorescence (Fm) and the minimum fluorescence (Fo) in a measuring space or detecting part or all of the dynamic shape of a fluorescence induction curve in a measuring space, particularly measuring; and calculating the number of living phytoplankton cells and/or microorganisms of a reference species in the measuring space in accordance with the variable fluorescence (Fv).

The invention discloses an aquaculture microorganism substrate improver having a triplet efficacy and a preparation method thereof. A high viable content can still be kept in the production and transportation process, and the effect of the viable content can still be efficiently played under a low-oxygen-solubility condition on the bottom of a pond. Organic substances such as bait residues and manure can be decomposed, and the pathogenic microorganism can be inhibited; organic phosphorus in the water is converted into inorganic phosphorus, and the growth of phytoplankton is promoted; nitrite nitrogen in the water is converted to nitrogen to removal water, so that the content of the water nitrite nitrogen is reduced; and heavy metal ions are chelated, so that the toxicity of heavy metal is reduced, a triplet efficacy of bottom improvement, water regulation and detoxication can be realized, and the water environment is comprehensively improved. The aquaculture microorganism substrate improver is prepared from the following components in parts by weight: 1 to 3 parts of zeolite powder, 2 to 8 parts of bentonite, 0.5 to 4 parts of diatomite, 1 to 3 parts of polyglutamic acid powder, and 2 to 8 parts of composite probiotics powder.

A method for classifying underwater original position of polytoplankton by detecting concentration of polytoplankton includes setting a groove at one side of closed pressure box and a light shading cover at external side of said box; erecting LED array formed by parallel-arranged LED with center wavelength of 450nm, 525nm, 570nm 590nm and 620nm in light path at side surface of said groove; dividing polytoplankton to be five light spectrum set as green, blue, brown, red and mixture; measuring 685nm florescent intensity of five different exciting wavelength to calculate out chlorophyll concentration of each light spectrum according to known coefficient.

The invention provides a mixotrophic-cultivation system in a freshwater pearl mussel pond, which comprises a pond, a separation device, a pearl mussel mixotrophic-cultivation region and an intensive fish cultivation region. The invention also provides a method for cultivating the pearl mussel by the mixotrophic-cultivation system. The mixotrophic-cultivation system and the method make full use of the nutrition relation among the mixotrophic-cultivation species, which reduces nutrition collecting volume; by regulating water quality and water transparency as well as regulating composition of species of phytoplankton and biomass, nutrient salt, phytoplankton and level of dissolved oxygen of the water can be effectively and conveniently controlled, which can effectively keep a good ecological environment of the water. The mixotrophic-cultivation system and method of the invention can obviously accelerate growth of the pearl mussel and increment speed of the pearl.

An apparatus for cultivation of phytoplankton and other autotrophic aquatic species in an aquatic medium in one embodiment comprises a plurality of liquid-impermeable transparent baffles, each forming an elongated trough-like enclosure, depending from a transparent top chamber, each baffle in communication with the top chamber, and two end walls for enclosing the top chamber and baffles. Introduction of water into the baffles sinks the apparatus in the liquid medium to the top of the baffles, leaving the top chamber above the surface of the medium. Light to which the top panel is exposed passes through the top chamber, the water in the baffles, and the baffles to encourage growth of selected microscopic organisms in the surrounding medium.

A purifying method for river micro-pollution water body by bionic plant achieves low cost and simple process. It adopts stem, node and leaf of bionic material to produce bionic plant, they are arranged in river for purifying water body. The bottom of bionic plant is fixed on riverbed, the filling silk with rough surface adheres microbe to form biological membrane. It improves micro-pollution water body treating and purifying effect.

The invention discloses a device and a method for detecting the grain size of phytoplankton in seawater, wherein the device comprises a micro-fluidic chip bearing platform, a micro-fluidic chip, an excitation source component, a light detection component, a Coulter counting component, a data processing component, an underwater environment information collecting component, an automatic sampling component and a data transmitting and displaying component, wherein the micro-fluidic chip comprises a glass slide, a liquid storage hole A, a liquid storage hole B, a liquid storage hole C, a liquid storage hole D, a main channel, a detection channel, an impedance pulse sensing upstream detection channel and an impedance pulse sensing downstream detection channel. According to the invention, because the micro-fluidic chip acts as a detection micro device of grain size spectrum of phytoplankton, relevant photoelectric detection components and data processing components are small in volume, and the detection device internally contains a set of complete detection system including an automatic sampling component, a data transmitting and displaying component and the like, the device has the advantages of convenience in carrying, low cost, capability of detecting the grain size of underwater phytoplankton in the field in real time and the like.

The invention relates to a growth promoter for an aquaculture water phytoplankton, and belongs to the technical field of aquaculture. The growth promoter is characterized in that the growth promoter is prepared by the following steps of: weighing gibberellin, compound sodium nitrophenolate and bacillus powder in a ratio, mixing the materials uniformly at normal temperature, and packing the mixture with one bag; then weighing monoammonium phosphate, ammonium chloride, potassium chloride, sodium silicate, boric acid, sodium humate and sauce lees in a ratio, mixing the materials uniformly at normal temperature, and packing the mixture with the other bag; and finally filling the two bags into a large packing bag, and sealing the packing bag. The growth promoter is not affected by environment conditions, and has the advantages of small using amount, quick response after use and stable and durable effect. The growth promoter can quickly promote the growth and propagation of the aquaculture water phytoplankton, particularly diatom, create good water color, effectively increase the dissolved oxygen content of the water, stabilize the pH value, maintain water ecological balance, improve the survival condition of the cultured organism and provide rich natural basic bait for the growth of the cultured organism, has stable quality, is environment-friendly, and has no harm to people and aquatic animals.

The present invention relates to a method of aquaculture of at least one farmed organism, such as fish, shrimp or any organism suitable for farming in an aquatic environment. There is provided a method of aquaculture of at least one farmed organism, the method comprising steps: (i) providing an aquatic environment comprising at least one farmed organism, phytoplankton and bacteria; (ii) providing at least one phytoplankton nutrient and at least one bacteria nutrient during a first predetermined period, allowing phytoplankton and bacteria to grow in a first predetermined phytoplankton:bacteria ratio of more than 1; (iii) providing at least one phytoplankton nutrient and at least one bacteria nutrient during a second predetermined period, allowing phytoplankton and bacteria to grow in a second predetermined phytoplankton:bacteria ratio, wherein the second predetermined phytoplankton:bacteria ratio is lower than the first predetermined phytoplankton:bacteria ratio; and (iv) providing at least one phytoplankton nutrient and at least one bacteria nutrient during a third predetermined period, allowing phytoplankton and bacteria to grow in a third predetermined phytoplankton:bacteria ratio, wherein the third predetermined phytoplankton:bacteria ratio is lower than the second predetermined phytoplankton:bacteria ratio, thereby allowing the at least one farmed organism to grow.

The invention provides an MODIS remote sensing monitoring method of leucocyan in eutrophic lakes. The method comprises the following steps: images of eutrophic lakes are divided into phytoplankton bloom images and non-phytoplankton bloom images on the basis of MODIS RGB image manual interpretation and field measurement data analysis; with the combination of consecutive two years of satellite-ground synchronous data of the eutrophic lakes, an EOF decomposition-based leucocyan estimation algorithm is obtained; EOF algorithm-based leucocyan estimation results are obtained; and on the basis of the algorithm, a long-term sequence spatial and temporal distribution result of leucocyan in the eutrophic lakes is obtained. According to the method, pigment concentration is estimated after image classification. Thus, estimation result is more accurate, and a more comprehensive evaluation of water quality can be made. The method of the invention provides scientific supports for scientific decision-making of water resource management and water environment protection for water conservancy and environmental protection departments, etc.

The invention discloses a circulating type phytoplankton species and cell density detection device. The device comprises a shell, a data acquisition and processing module and an upper computer module;a flow chamber, a fluorescence detection module and a holographic imaging detection module are arranged in the shell; the fluorescence detection module comprises an excitation light source illumination light path and a fluorescence detection light path which are arranged orthogonally; the fluorescence detection module and the holographic imaging detection module are respectively connected with adata acquisition and processing module; and the data acquisition and processing module is connected with the upper computer module. According to the invention, a circulating structure is adopted to continuously detect phytoplankton species and cell concentration in seawater; a multi-channel fluorescence detection light path is constructed, and the collection efficiency of weak light signals is improved; the holographic imaging detection light path is designed to overcome the limitation of small depth of field of traditional microscopic imaging; the device has the advantages of low cost, compact structure, small size, no influence of natural environment illumination and the like, and can realize automatic identification of phytoplankton species in water and rapid measurement of cell concentration.