50 results about "Thaliacea" patented technology

The invention discloses a chlorophyll calculating method based on remote-sensing images and a water ecological model. The method comprises the steps of 1, based on remote-sensing image data, data preprocessing like radiometric calibration, atmospheric correction and image cropping and fusing is conducted; 2, a remote-sensing water quality inversion model is constructed, and respective inversion ofindexes like water temperature and chlorophyll concentration is achieved; 3, various index concentrations and future weather change which are obtained through inversion of the remote-sensing images are regarded as input conditions of the water ecological model, and the chlorophyll concentration dynamic change process of a water area environment is simulated within a future duration caused by change like nutritive substance conversion and algae growth and death under a future weather change condition. The chlorophyll calculating method is applicable to water environment monitoring and predicting, and has popularity and high calculation precision, chlorophyll concentration prediction and simulation of a large area of a drainage basin are achieved in real time under the condition of the limited monitoring site, and an integrated chlorophyll concentration predicting system integrating the remote-sensing images and the water ecological model can be formed.

The invention relates to a benthonic animal-algae-aquatic plant-fish based river water ecological environment self-remediation method. The method is to overcome problems of river water ecological environment remediation methods at present, namely short effect duration, high costs and easy generation of secondary pollution. The method includes 1) evaluating the degree of pollution of a river, 2) planting reed and seeding algae, 3) throwing in plankton and benthic mollusks, 4) planting submerged plants, 5) throwing in shrimps, herbivorous fishes, omnivore fishes and filter-feeding fishes, 6) throwing in carnivorous fishes, and 7) harvesting the reed and the submerged plants before the reed and the submerged plants die, catching the benthic mollusks and the shrimps, and catching the fishes after two years. The method is long in effect duration, low in cost and free of secondary pollution and is applied for the field of river water pollution remediation.

A pond differential niche ecological water treatment facility is characterized in that a T-shaped water partition wall is arranged in a long strip-shaped aquiculture pond along the length direction to divide the cultivation pond into an eating fish aquiculture zone and a filter feeding fish aquiculture zone; the two zones are communicated by a fishing gate, a water inlet gate, a sewage colleting pipe and an aeration pipe; a conical sewage collecting pit is arranged at the pond bottom of one end, close to the fishing gate, of the eating fish aquiculture zone as an eating and defecting zone for fishes. Fishes of different niches in the pond are cultured in a separating mode, feces and residual baits of the eating fishes are concentrated and input to the filter feeding fish aquiculture zone by pneumatic water flows, and are re-eaten, purified, disintegrated or adsorbed by algae in the filter feeding fish aquiculture zone, thus ensuring the good water quality of the eating fish aquiculture zone, facilitating the growth of eating fishes, culturing the filter feeding fishes with the feces and residual baits of the eating fishes, improving the ecological effect of the pond aquiculture and reducing culture pollution.

The invention discloses a dual-network three-dimensional cultivating system for abalones and algae and a cultivating method thereof. The cultivating system comprises a dual-barrel net cage platform including an inner barrel and an outer barrel, wherein a plurality of layers of cultivation baskets are suspended in an inner barrel net cage and are used for cultivating the abalones, a palm rope is downwards suspended in an area between the inner and outer barrel net cages, and gracilaria seedlings are clamped on the palm rope. The net cage can resist against natural enemy, therefore the problem that the abalones and the algae cannot be cultivated in a coexistence way in southern opening sea area; furthermore, an 'alga wall' can be formed by outer algae to effectively prevent the impact on the abalones in the inner net caused by ocean current, therefore the physical agility of the abalones consumed by resisting against the ocean current can be prevented; meanwhile, massive oxygen can be generated during the abalone growth, therefore the abalone in the inner net can be soaked in an oxygen-rich water environment, therefore the abalone can be promoted to grow quickly; in addition, the excreta of the abalones can be ensured to be absorbed by the algae for more time because the sieve number of an outer net is denser than that of the inner net, therefore the influence on the sea area environment can be prevented because the excreta flows out the net cage.

The invention discloses a lake eutrophication evaluation method based on water-body absorption coefficients. The lake eutrophication evaluation method includes the steps that the absorption coefficients of lake-water-body suspended particles and colored dissolved organic substances at a wave band of 400 nm are measured, and the sum of the absorption coefficients of the substances is calculated, and the water-body absorption coefficients at (440) of a lake water body at the wave band of 400 nm are obtained; after a relationship mode of the at (440) and lake comprehensive nutrition state coefficients TLI is established, the lake-nutrition-state classification standard based on the at (440) is determined according to the TLI coefficient range. Lake eutrophication is evaluated with the lake eutrophication evaluation method, measurement of fussy and nitrogen nutritive salt and measurement of alga biomass are not required, and rapid evaluation and type classification of lake eutrophication can be achieved in the mode that the absorption coefficients of the water body at 440 nm only need to be measured; operating is easy to carry out, the cost is low, and the method is easy to popularize, and the advantages of the lake eutrophication evaluation method are quite obvious; in addition, as the water-body absorption coefficients can be measured in an in-situ mode, the precondition can be provided for establishing a measurement method based on the in-situ lake eutrophication state index.

The invention provides a remote sensing estimation method for the total algae stock (token: chlorophyll a gross and dimension: t) of a eutrophic lake under the non-algae-bloom condition. The method includes the steps that NDBI threshold values of the non-algae-bloom condition of the lake are screened and judged; on the basis of photobiological model simulation and measured data, the quantitative relation between NDBI and water surface chlorophyll a concentration under the non-algae-bloom condition is acquired and generalized to MODIS satellite image data corrected by rayleigh scattering; based on measured section data, a lookup table between the total biomass of an algae surface layer and the total algae stock within different water depth ranges is acquired; based on the same-day water level of the middle temple of the Chaohu Lake and the Chaohu Floodgate Station and the underwater DEM of Chaohu Lake, the water depth space distribution of the Chaohu Lake is determined; based on the total algae stock in unit pixels of an MODIS satellite image, estimation is performed. Based on the method, the inter-annual and inter-monthly change rule and space distribution of the total algae stock of the eutrophic lake under the non-algae-bloom condition can be accurately obtained.

A method of increasing yield of cultivated algae, which entails the step of cultivating one or more species of algae in the presence of one or more species of PPFM bacteria, for at least a portion of the algae cultivation.

The invention relates to a combined biomanipulation method for water-area ecological restoration. The combined biomanipulation method includes the steps that growth of phytoplankton in a system serves as starting; zooplankton is transplanted to the water body, and algae in the water body are controlled; aquatic vegetation is planted; after aquatic plants successfully grow, freshwater shrimps, caridina, small fishes, small carnivorous fishes, large carnivorous fishes and molluscs start to be put. By means of the combined biomanipulation method, all the key technologies in biomanipulation are integrated, food chains in the water-area ecological system are entirely and systematically rebuilt, the complexity of biocenosises is prolonged and improved, the stability of the system is improved, and the fixing function and the nutriment circulation function of the system are achieved.

The invention discloses a nuttallia olivacea larva large-scale breeding method, relates to the technical field of aquaculture, and particularly belongs to the nuttallia olivacea larva large-scale breeding method. The method is characterized by comprising the following steps of four-grade bait preparation, wherein a first-stage unicellular alga species starts to be cultivated from December to January in winter or 3-4 months before spawning of parent shellfish, second-stage alga species is prepared from February to March in spring, a three-stage alga solution is produced from March to May in spring, and large-scale unicellular bait is produced in a pond from April to August in spring and summer; parent shellfish collection and spawning; fertilized egg hatching; larva breeding. The method hasthe advantages that the method is not limited by natural conditions, the yield is high, and large-scale benefits are remarkable.

The invention discloses a lake-reservoir algal bloom generating mechanism time varying model optimization and prediction method based on a taboo searching algorithm and a genetic algorithm. The method comprises the steps that first, a water bloom generating mechanism time varying model is established; second, an influence factor function model base is established; third, based on the genetic algorithm, water bloom generating mechanism time varying model parameters are optimized; fourth, based on the taboo searching algorithm, a water bloom generating mechanism time varying model structure is optimized, and influence factors are analyzed; and fifth, optimum water bloom generating mechanism time varying model prediction is carried out. According to the method, a time variable is introduced into the water bloom generating mechanism model, the water bloom generating mechanism time varying model is established, so that the method is suitable for simulating a water bloom generating process and can be used for water bloom prediction, and the problem that water bloom prediction based on a data driving model is not accurate enough, and a mechanism driving model cannot predict water bloom is solved.

Crude algae oils produced by practical extraction techniques comprise a wide range of molecular species that can be characterized by advanced analytical techniques. The algae oils comprise a complex mixture of a large number of molecules having varying sizes and therefore varying boiling points, and comprise high nitrogen, oxygen, and fatty acid content, but low sulfur, saturated hydrocarbons, and triglyceride content. Hydrogen / carbon molar ratios are typically greater than 1.6. The wide range of molecular species in the crude algae oils, while unusual compared to conventional refinery feed stocks and vegetable oils, may be upgraded into fuels by conventional refining approaches such as hydrotreating and thermal treatment. Unusual behavior of the algae oils in thermal processing and / or hydrotreatment may provide a high quality product slate, with the flexibility to adjust the product slate due to enhanced cracking behavior exhibited by these algae oils.

An environmental controlling system to better preserve cut flowers and other flora in vase water. The system uses thermoelectric modules, heat exchangers, fans, power supply, and a thermal conductor to cool and / or heat the water in a flower vase as required. By cooling the water, formation of algae and formation of a callus on the cut stem is reduced. In addition, keeping the stems in water of optimal temperature controls production of ethylene and other phytohormones. These effects prevent premature wilting, leaf abscission, flower senescence, and reduces the care required to maximize the life of cut flowers and other flora. In the event of cold ambient conditions that might cause freezing, the flow of heat can optionally be reversed, warming the water in the vase to avoid freezing the stems and / or maintain optimum temperature and other conditions for a specific variety of flora.

The invention relates to an enhancement-type artificial fish reef device for protecting and promoting the growth of juvenile fish. The enhancement-type artificial fish reef device comprises a fish reef body, and is characterized in that the fish reef body is of a hollow truncated pyramid structure and comprises a top panel, a bottom panel and side panels; the top panel and the side panels are provided with juvenile fish screening devices for fish to enter the fish reef body to hide from enemies, and the juvenile fish screening devices are composed of frames fixed to openings, grid bars fixed to the frames and made of magnetic materials, and artificial seaweed wrapping the grid bars in a winding mode; a juvenile fish nutrition device is hung on the top panel of the fish reef body, and crabshell powder is contained in the juvenile fish nutrition device and can improve the immunity of the juvenile fish, promote the growth of juvenile fish and reduce the death rate of juvenile fish; algaadherence matrixes are arranged on the outer sides of the side panels of the fish reef body, and oyster shells and gravel are contained in the fish reef body and can increase the adherence area of algae, promote the reproduction of algae and further provide adequate bait for juvenile fish. The enhancement-type artificial fish reef device is low in cost, simple in structure and long in service life, and the survival rate of juvenile fish is increased to achieve the enhancement of fishery resources.

The invention relates to a coupling technique of city watercourse dredging and sequence reestablishment from a shoal to a deep pool. The coupling technique of the city watercourse dredging and the sequence reestablishment from the shoal to the deep pool is characterized in that a sequence from the shoal to the deep pool of a river is reestablished on a city watercourse crook portion where a river bank is upright and sclerotic by combining the watercourse dredging with a bottom mud solidification technique. According to the coupling technique of the city watercourse dredging and the sequence reestablishment from the shoal to the deep pool, the shoal can provide appropriate growing environment for submerged plants and aquatic animals, and the submerged plants not only can purify water and inhibit growth of algae, but also can provide good habitat environment for the aquatic animals, and thereby further improves self cleaning capacity of a watercourse; the sequence from the shoal to the deep pool can strengthen hydrodynamic force of the watercourse, improve dissolution oxygen content in a water body, mitigate anoxic status of lower layers of the city watercourse, and improve biological activity of bottom mud, and thereby improves self cleaning capacity of the water body.

The exudate of macroalage is collected and selectively dried to produce a health supplement capable of oral, topical, or transdermal delivery to benefit the health of user. The macroalage is preferably brown macroalage of the species Macrocystis pyrifera and the exudate preferably collected within 12 to 24 hours of harvest. High purity Fucoidan derived from Macrocystis pyrifera is administered in an effective amount to benefit the health of a user. Collected exudate, dried exudate or High Purity Fucoidan may be combined with other materials such as krill oil to create a synergistic boost to Antioxidant power and health benefits.

The invention relates to the technical field of image processing, provides a method and device for recognizing diatom types of extracted diatom regions, and aims at directly extracting imaged diatom region images without removing impurities in and around diatoms through complicated experimental means. The method for recognizing diatom types of extracted diatom regions comprises the following stepsof: obtaining an image of a to-be-recognized diatom; taking an alga fitting contour frame, matched with the to-be-recognized diatom, selected according to the image of the to-be-recognized diatom asa diatom ROI (region of interest); extracting a to-be-recognized diatom image corresponding to the to-be-recognized diatom from the image of the to-be-recognized diatom according to the diatom ROI; and carrying out feature recognition on the to-be-recognized diatom image so as to determine a type of the to-be-recognized diatom.

The invention provides an eutrophic water aquatic vegetation remote sensing extraction method based on an alga index frequency method. The eutrophic water aquatic vegetation remote sensing extraction method includes S1, selecting MODIS (moderate resolution imaging spectroradiometer) images of eutrophic water with aquatic vegetation luxuriant and area stable at different periods; S2, subjecting the MODIS images selected to FAI (floating alga index) calculation; S3, according to the FAI, calculating VPF (vegetation signal appearance frequency) of pixels j at the periods; S4, defining VPF threshold values of all periods and calculating the aquatic vegetation area Aav. The eutrophic water aquatic vegetation remote sensing extraction method has the advantages that the influence of floating alga to aquatic vegetation remote sensing inversion is eliminated, and by integrating typical period dividing, frequency judgment and satellite image judgment, the influence of the floating alga and perennial alga bloom areas to the accurate aquatic vegetation area remote sensing inversion is eliminated.

Pelagic, surface floating, macroalga, Sargassum is harvested at large scale from a free-roaming farm floating freely on the ocean surface, monitored and tracked with GPS drifters and contained only by naturally occurring circular currents known as eddies or gyres, without aquaculture equipment. The farming technique occurs in open ocean through the utilization of system design and technology. Satellite imagery is interpreted to locate naturally occurring Sargassum aggregations or mats. Harvest vessel(s) travel to an identified mat, where only a portion of the natural mat is harvested as starter culture for a free-roaming farm. Cuttings are left behind to become new plants to restore the “mother mat” for no net loss of habitat and for migration for cohabitating organisms. The remainder of the biomass is transported to the identified free-roaming farm site which is in a suitable Eddie. GPS drifters are adhered with seedlings until the crop is ready for harvest.

The invention belongs to a low-carbon energy-saving method for treating polluted water quality of a lake or a landscape lake, comprising an aeration type aerobic device, floating landscape aerobic devices, aquatic floating plants and cultured fishes, wherein the aeration type aerobic device is positioned in a water inlet of the lake or the landscape lake; the floating landscape aerobic devices are positioned in the lake or the landscape lake at intervals; the aquatic floating plants are distributed on the periphery of the lake or the landscape lake; and the cultured fishes are positioned in the lake or the landscape lake. The method mainly uses biological natural purification as a main method and mechanical purification as an auxiliary method, supplies power by using a clean carbon-free energy source, circularly increases the fluidity of a water body, can effectively purify polluted water, prevents phycophyta growth, improves the living environment of organisms in water and always retains aquatic oxygen content in a higher level. The invention has the advantages of simple operation, low treatment cost, low-carbon energy saving, no pollution, no noise, attractive appearance, environmental protection and good treatment effect.

The invention discloses a method for improving water quality in deepwater areas of lakes and reservoirs and controlling cyanobacterial bloom through artificial biological carriers.The method includes the steps that A, areas are selected, wherein locations where water surface operation is easy and wind and wave avoidance is achieved are selected as construction points; B, a water surface floating platform basic framework is built, wherein a framework of a water surface floating platform is built on the bank; C, the water surface floating platform is fixed, wherein the water surface floating platform is fixed by tying underwater weights through ropes, and the parts, needed during water level raising, of the ropes are reserved; D, biological carrier materials are preprocessed, wherein the biological carrier materials are hung on nylon ropes 20 mm thick at the interval of 16 cm on the bank, and the length of the nylon ropes is the same as the internal length of the water surface floating platform.The method has high ecological benefits, is obvious in effect, free of pollution, high in continuity, good in repeatability and suitable for various kinds of water ecological repair and cyanobacterial bloom control, and provides favorable conditions for ecological reconstruction of eutrophication reservoir bays.

The invention discloses a method for culturing cod fish by using a sea cage. The method comprises the steps of sea cage preparation, fish stocking of fingerling, fish bait feeding and sea cage maintenance. The method has the advantages that the method is low in investment cost, high in culturing efficiency, less in environmental pollution and stable in cod fish production, and has good ecological benefits and social benefits. An added mixed algae water scavenging agent is immobilized algae cells, high in synthesis metabolic activity and slow in senility, can effectively remove ammonia nitrogen, nitrate and nitrite which are adhere to the sea cage, and improves the sea cage environment; the scavenging agent is easy in technology method, good in product quality and stability, low in price and good in application effect, and has good economic benefits.

The invention discloses a pelagic floating fish reef based on tide and wave power generation and belongs to the technical field of marine ranch artificial fish reefs. The pelagic floating fish reef comprises a bottom-layer fish reef, two ends of the bottom-layer fish reef are connected with a floating body through steel ropes, a plurality of power generator sets are arranged on the floating body,a netting is connected between the steel ropes, and an algal spore seeder is arranged below the middle of the netting. The pelagic floating fish reef combines a wave energy and tidal energy power generation device with a floating body structure of a floating fish reef to realize primary conversion from ocean energy to electric energy and can attract fishes to gather, so that primary productivity of a sea area is improved greatly.

The invention discloses a pollution prevention and control method for ethanol consumption bacteria in an ethanol producing genetic engineering cyanobacteria culture system and belongs to the technical field of biological energy and the technical field of algal culture. The method mainly solves the technical problem about biological pollution prevention and control over the ethanol consumption bacteria in the genetic engineering cyanobacteria ethanol production process. The method comprises the steps in the ethanol producing genetic engineering cyanobacteria culture process, through a high-pH strategy that the culture system is captured through a sodium bicarbonate carbon source, and the pH value is controlled to gradually rise to 11.0 and kept at 11.0+ / -0.5 in the culture process, breeding of the ethanol consumption bacteria and ethanol consumption in the culture process are inhibited. The method can provide reference for a large-scale cyanobacteria culture pollution control system, and has important significance on biology liquid fuel produced from genetic engineering cyanobacteria.

The invention relates to a method for lake purification and water ecological environmental renovation, comprising: a rope contact oxidation step, a pressurizing floating step, a waterweed cultivation island use step, and a lake pollution state analysis step, while an optimal use of a step is selected, whether comprehensively using the steps is selected: a rope contact oxidation selection step selecting objects needed to be treated and an operation method in the rope contact oxidation step; the method uses a rope contact oxidation device clears away pollutants in a lake or flowing from the outside of the lake to the inside of the lake, particularly organic matters and solid subjects (SS), uses a pressurizing floating method to clears away sediment and algae deposited at the bottom of the lake, uses the waterweed cultivation island use method to clear away nutrients and organic matters in the lake, and provides algae proliferation inhibition and places for fish oviposition and hiding, thereby renovating water ecological environment.

The invention relates an artificial reef body suitable for aquaculture of the seafood, such as abalone and sea cucumber and the like, in particular to a multilayer combined type sea reef suitable for shallow seabed sowing aquaculture, which solves the problem of the lack of facilities dedicated for shallow seabed sowing aquaculture of abalone and sea cucumber. The sea reef body comprises a vertical column and at least two plates, wherein, the two plates are sheathed on the vertical column in a layering manner, and each layer of plate is sheathed with the vertical column through a rectangular hole; the top part of the vertical column is provided with a lifting pull ring. The facility is easily manufactured, and can provide three-dimensional perch space and shelter for aquaculture of the abalone and the sea cucumber; the reef body has wide and rough surface area for adhesion of various macrophytic algae and benthic microalgae, and is easy to form algal bed to provide adequate bait for the aquaculture of seafood; the reef body has moderate spacing, which is easy for batch harvest of aquaculture products. Aquaculture production of the seafood can be carried out in the sea region of shallow sand and mud substrate where lack of reef and is not suitable for seabed sowing aquaculture of the abalone and the sea cucumber by applying the facility, and the facility is beneficial for developing seafood aquaculture area and increases yield of the products.

A rana spinosa polliwog metamorphosis period material nutrition material relates to the technical field of rana spinosa cultivation, and is characterized by comprising the following components by weight, 50-60 parts of pure milk, 8-10 parts of algae plant powder, 20-30 parts of fish meal, 10-15 parts of a silkworm chrysalis powder, 1-2 parts of flavomycin, 8-10 parts of glucose, 6-8 parts of calcium peroxide, 3-5 parts of egg white and 3-5 parts of egg yellow. The rana spinosa polliwog metamorphosis period material nutrition material is reasonable and comprehensive in nutrition preparation and conducive to the growth of bones, can replenish oxygen, and can control the pH of the water, the polliwog metamorphosis period survival rate is high, and the rana spinosa polliwog metamorphosis period material nutrition material is conducive to improve the economic benefit.

The invention discloses a double-wing net rack mechanism for aquaculture and an underwater net cage fish manure waste collection device. The double-wing net rack mechanism for aquaculture comprises anet curtain and double-wing nets, and each double-wing net comprises a main wing net and an assistant wing net. The underwater net cage fish manure waste collection device comprises a bottom bag and two side baffles fixed to the side face of the bottom bag to define a collection net bag with an opening in the top, and the bottom bag is formed by the double-wing net rack mechanism for aquaculture.The double-wing nets can be self-cleaned under the fluctuation action of water flow, and underwater bacteria and algae and parasites are prevented from adhering to the double-wing nets. The double-wing net rack mechanism for aquaculture and the underwater net cage fish manure waste collection device are suitable being used in for lakes, rivers, ponds and other water areas with smooth water flow for collecting manure, residual bait and other wastes in cage culture.

The invention provides a method for inhibiting algae growth by coupling modified clay with algal inhibition bacteria. The modified clay is cetyl trimethyl ammonium bromide modified sodium montmorillonite. The algal inhibiting bacteria can be lysinibacillus fusiformis J8 which is called a J8 strain for short. The J8 strain is preserved in the Guangdong microbial culture collection center on December 13th, 2017, and the preservation number is GDMCC NO. 60298. Experimental data shows that the combined application of the modified clay and the algal inhibiting bacteria (J8) has an obvious inhibition effect on algal cells, the continuous algal inhibition time can reach 168 hours, and the rebound of the number of the algae cells is avoided. The modified clay used in the method is wide in source,simple to prepare, low in cost and easy to operate; the modified clay and the algal inhibiting bacteria are combined so that the red tide can be more thoroughly inhibited; a method for inhibiting thered tide by combining the modified clay and the algal inhibition bacteria, no secondary pollution is generated, and the method is an environment-friendly method.

The invention discloses a mariculture method based on an offshore wind plant. The method includes the following steps that firstly, single-pile type wind power foundations are inserted, a wind plant area is formed in an enclosed mode, and culture facilities are fixed among the wind power foundations; secondly, an equipment platform is arranged in the center of the wind plant area, reinforcing rods are connected between the equipment platform and the wind power foundations, and algal culture devices are fixed to the lower portions of the reinforcing rods to form an upper layer culture area; thirdly, fish culture net cages are fixed to the lower portions of the reinforcing rods to form a middle layer culture area; fourthly, shellfish culture net cages are arranged on single piles of the wind power foundations to form a lower layer culture area; fifthly, different seedlings are placed on the algal culture devices according to seasons; sixthly, fry are placed in the fish culture net cages, and algae falling from the upper layer culture area serve as bait; seventhly, shellfish are placed in the shellfish culture net cages, and algae left over by fishes and fish excrement serve as bait; eighthly, artificial fish reefs are placed at the bottom of the wind plant area and used for bottom sowing of shellfishes, fishes or shrimps and other organisms.

The invention discloses a vertical lift type alga sporophyte collector which comprises a vertical collecting barrel, a lower sealing barrel, a clump weight and a pressure triggering and releasing mechanism. Openings are formed in the upper end and the lower end of the vertical collecting barrel, a spore filter screen is arranged in the vertical collecting barrel and is positioned on the lower portion of the vertical collecting barrel, and a buoyancy block is arranged on the outer side surface of the vertical collecting barrel; the lower sealing barrel is used for sealing the opening in the lower end of the vertical collecting barrel, an opening is formed in the upper end of the lower sealing barrel, the lower end of the lower sealing barrel is closed, and the sealed lower end of the vertical collecting barrel extends into the lower sealing barrel from the opening in the upper end of the lower sealing barrel; the clump weight is arranged on the lower sealing barrel. The vertical lift type alga sporophyte collector has the advantages that the vertical lift type alga sporophyte collector is convenient to operate and free of influence of sea current, the accuracy of the locations of the collecting barrel which is downwardly released to water layers at specific depths can be effectively improved, and accordingly the accuracy of research on distribution conditions of alga sporophyte can be improved by the reliable vertical lift type alga sporophyte collector.