53 results about "Seaweed farming" patented technology

The invention discloses a nori conchospore seedling collecting combination device and a seedling collecting method, which belong to the field of algal cultivation. In order to overcome the technical defects of non-uniformity in spreading nori shell conchocelis, inconvenience in seedling collecting pond management, and difficulty in seedling collecting mechanical application in the prior art, the invention provides the nori conchospore seedling collecting combination device and the seedling collecting method thereof. The nori conchospore seedling collecting combination device comprises a seedling collecting device, a seedling collecting wheel lifting device and a rope sling device. According to the nori conchospore seedling collecting combination device and the seedling collecting method, the shell conchocelis can be remarkably promoted to be spread uniformly, the nori seedling quality can be improved, the seedling collecting pond management is greatly simplified, the human cost is reduced, the mechanization level of nori seedling collecting is further improved, and the production efficiency is improved.

The invention relates to a vertical kelp seedling clamping machine. The design of the vertical structure is more reasonable, which effectively avoids or reduces the incidence of seedling shedding and injury; it is powered by a pneumatic device, and the claws controlled by the compression cylinder and the compression rod work together to realize the loosening of the seedling rope. In order to manually insert seedlings; the pressing cylinder cooperates with the walking cylinder to complete the descending of the seedling rope, thereby realizing continuous operation in a cycle. The transmission device that moves intermittently with the seedling rope realizes the timely delivery of the seedling rope after the seedlings are clamped, avoids damage to the kelp seedlings, and reduces unnecessary losses. Compared with the prior art, the present invention has high efficiency, safety, reliable performance, scientific design and strong practicability, and will have a broad market space in today's kelp breeding industry in the ascendant.

The invention discloses a scaled cultivation method of sargassum horneri based on nutrient rapid propagation and belongs to the technical field of seaweed breeding. The method comprises the following steps of: 1) selecting a cultivation sea region; 2) collecting sargassum horneri main weeds and transporting and collecting floating sargassum horneri and conveying the same to the cultivation sea region; 3) gripping and sea cultivation: gripping the sargassum horneri on seedling ropes and hanging the seedling ropes on a raft rack; 4) daily management and harvesting: selecting the main weeds, then performing cultivation and harvesting; 5) main weed conservation and aestivation: continuously breeding and aestivating the main weeds in a region which is deep, large in flow and low in temperature; and 6) planting and cultivation of the main weeds again: continuously collecting the main weeds, gripping the same, and cultivating the same to obtain the main weeds and harvesting the sargassum horneri. The method for vegetative propagation by means of nutritional branches of the floating sargassum horneri has the characteristic of yearly growth, sargassum horneri can be cultivated on a large scale conveniently and rapidly, and the method is simple to operate, time- and labor-saving and high in growing speed, is not limited by manure main weeds, a lot of main weeds can be cultivated anytime, a phenomenon of seedling elimination is avoided, and the survival rate is high.

The invention belongs to the technical field of seaweed cultivation, and relates to a seaweed cultivation method. Natural seawater is contained in a seawater tank, and the temperature and the ultraviolet lamp irradiation are controlled to conduct disinfection treatment for standby application; selected and collected seed seaweeds are washed, disinfected and dried, then conventional culture media are selected according to different seaweed types, temperature control and dim-light static cultivation are carried out, and then enzymolysis or direct cultivation is carried out; after to-be-cultivated somatic cells, to-be-cultivated gametophytes or to-be-cultivated callus mature, bolting-silk filtering, sectioning processing and / or centrifugal collecting are carried out, the somatic cells, the gametophytes or the callus are placed into the culture media according to the requirements of different kinds of seaweeds, the temperature, the illumination and the osmotic pressure are controlled for cultivation, and the somatic cells, the gametophytes / sporophores and the callus of the seed seaweeds are attached to the silk net faces in the culture media; silk nets are then manually scattered into the offshore or the tidal zone to conduct conventional seawater cultivation. The seaweed cultivation method is simple in technology, low in cost, convenient to operate, short in seedling growing time, good in cultivation effect and high in cultivation yield, and manpower is saved.

The invention discloses an algae cultivation tool. The tool comprises a floater, a supporting frame and a balancing weight, wherein the floater, the supporting frame and the balancing weight are connected in sequence through a stay cord, the supporting frame comprises a center rod, a sliding sleeve in sliding connection with the center rod, and multiple fan-shaped supporting plates arranged around the center rod, multiple algae cultivation bricks are arranged on each fan-shaped supporting plate, a connecting base is arranged on the top of the center rod, the fan-shaped supporting plates are connected with the connecting base in a rotary mode on the vertical plane, a supporting rod is hinged between the sliding sleeve and the upper surface of each fan-shaped supporting plate, the sliding sleeve is connected with the connecting base through a tension spring, the corresponding side edges of every two adjacent fan-shaped supporting plates are attached to each other when the sliding sleeve is located at the top dead center of the sliding stroke of the sliding sleeve, and a deflation valve is arranged on the floater. By the adoption of the tool, apposition growth of young algae is facilitated, young algae at the early growth stage are well protected, the survival rate of algae is increased, concentrated releasing is facilitated, and management is convenient.

The invention discloses an ocean system carbon neutralization method. A seaweed culture area is arranged on the sea surface; a burying robot and a capturing robot are arranged in the ocean; the capturing robot captures seaweeds in the seaweed culture area and then throws the captured seaweeds to the seabed; the burying robot is used for burying the seaweeds thrown by the capturing robot below the seabed at the seabed, so that the seaweeds are in an anoxic environment. Seaweed cultivation is carried out in the seaweed culture area, light above the sea surface permeates seawater to irradiate the seaweeds, so that water-soluble carbon dioxide is converted into organic matters by the seaweeds to grow and proliferate, inorganic carbon is transferred into the seaweeds from the seawater and exists in the form of organic carbon, and thus carbon in the sea is enriched to the seaweed culture area. The capturing robot captures and collects the seaweed in the seaweed culture area and puts the seaweed into the seabed, the burying robot buries the seaweed, organic carbon in the seaweed is transferred to the position below the seabed, and therefore the carbon in the seaweed is separated from ocean carbon circulation, and the purpose of carbon neutralization is achieved.

The invention relates to the technical field of ecological breeding, in particular to a seaweed breeding device combined with up-and-down breeding net cages and an application method. The seaweed breeding device comprises a flexible culturing raft frame and the up-and-down breeding net cages on two sides of the flexible culturing raft frame, wherein the flexible culturing raft frame comprises first floating ropes on two sides and a second floating rope at the middle part; hooks and floating balls are arranged on each first floating rope; floating balls are arranged on the second floating rope;two ends of each of seaweed seedling ropes are fixed on the hooks corresponding to the first floating ropes on the two sides, and are borne by the second floating rope at the middle part; chains arearranged at two ends of each of the first floating ropes and the second floating rope; a chain hook is arranged at the free end of each chain; the chains are twined on the edge of the upper end of theup-and-down breeding net cage at a corresponding end and are used for hooking any chain hole through the corresponding chain hook for binding; and fixing ropes are arranged at joints of two ends of each first floating rope and the corresponding chains, and the other end of each fixing rope is fixed to a submarine fixed seat below each up-and-down breeding net cage. According to the seaweed breeding device disclosed by the invention, the up-and-down breeding net cages are utilized to adjust a breeding water layer or avoid stormy waves, and the seaweed breeding device conforms to ecological breeding development requirements.

The invention relates to a device for generating carbon dioxide through crop waste for seaweed cultivation. The device comprises a furnace, a smoke vent, an inclined ash falling board, a purification pond and seaweed cultivation tanks. A steam cylinder is arranged at the top end inside the furnace. An ash collector is arranged at the top of the furnace. The side wall of a chimney is connected with a master air transmission pipe through a first smoke exhaust pipe. The top of the smoke vent is communicated with the master air transmission pipe through a second smoke exhaust pipe. The purification pond is filled with water. The bottom end of the master air transmission pipe extends into the purification pond. The evenly arranged seaweed cultivation tanks are arranged on one side of the purification pond. The top of each seaweed cultivation tank is connected with a carbon dioxide inlet pipe through a branch pipe. The device for generating carbon dioxide through crop waste for seaweed cultivation is reasonable in structural design, carbon dioxide generated after incineration of crop waste is filtered through the purification pond, the clean carbon dioxide enters the seaweed cultivation tanks via the carbon dioxide inlet pipes and the branch pipes, and well cultivated seaweeds can be processed into organic bacterial manure.

The invention relates to a composite seaweed farm in a marine ranching area and relates to the technical field of marine ecological breeding. The farm comprises a tower reef body put on the seabed, seaweed reef bodies uniformly distributed at the top end of the tower reef body, a long rope arranged above the seaweed reef body and a first buoy connected to the top end of the long rope through a pull rope, the long rope is used for attaching seaweed seedlings, and serves as a carrier for growth of seaweed , and the seaweed reef bodies are used for attaching the red algae plants and serve as the carrier for growth of the red algae plants. According to the farm, By cultivating macroalgae and red algae plants in the longitudinal space of the marine ranch, three-dimensional comprehensive utilization of the artificial fish reef area sea area can be achieved, the defects that a food net in marine ranch construction is simple in structure and low in nutrition level are overcome, the problem that the food net in the culture water area is single is effectively solved, the farm has positive significance on stable balance of offshore biological resource conservation and offshore biological diversity, and in addition, the convenience of picking cultured seaweeds is also improved.

The invention provides a reef used for seed fixation and germination and seedling growth of shrimp seaweed. The reef comprises a reef body with a cuboid shape, wherein the upper surface of the reef body is provided with a groove; two opposite side surfaces of the reef body each are provided with through holes; all through holes do not communicate with the groove; stainless steel wires vertical tothe groove are uniformly distributed on the groove located at the top part of the reef body; each stainless steel wire has a diameter of 3 mm and a length of no less than 8 mm; the design of the reeffacilitates fixation of shrimp seaweed seeds; the groove is an inverted quadrangular frustum pyramid-shaped groove; the distance between every two stainless steel wires is 4 to 5 mm; two above-mentioned opposite side surfaces of the reef body are also provided with blind holes; all blind holes do not communicate with the inverted quadrangular frustum pyramid-shaped groove; and the through holes and the blind holes are of a cylindrical shape, are the same in diameter and are mutually parallel. The reef provided by the invention has the advantages of simple structure, low cost, less material consumption, easy throwing, and high shrimp seaweed seed retaining efficiency, and has important significance for large-scale transplantation of the shrimp seaweed and restoration of a damaged seaweed farm in future.

The invention relates to a large yellow croaker net-cage comprehensive breeding method based on environment protection, health and high efficiency. The method comprises the following steps: selectinga sea area suitable for culturing large yellow croakers, then taking a large yellow croaker net cage breeding area a center area, arranging a shellfish breeding area which surrounds the large yellow croaker net cage breeding area on the periphery of the large yellow croaker net cage breeding area, and arranging a seaweed breeding area which surrounds the shellfish breeding area is arranged on theperiphery of the shellfish breeding area. The breeding method can be used for reducing the breeding environment pressure and improving circulating utilization efficiency of the breeding system, the breeding system is reasonable, continuous high yield of breeding products can be promoted, high-efficiency healthy sustainable development of large yellow croaker net cage breeding is promoted, and comprehensive breeding benefits are improved.

The invention belongs to the technical field of seaweed cultivation, and relates to a seaweed cultivation method. Natural seawater is contained in a seawater tank, and the temperature and the ultraviolet lamp irradiation are controlled to conduct disinfection treatment for standby application; selected and collected seed seaweeds are washed, disinfected and dried, then conventional culture media are selected according to different seaweed types, temperature control and dim-light static cultivation are carried out, and then enzymolysis or direct cultivation is carried out; after to-be-cultivated somatic cells, to-be-cultivated gametophytes or to-be-cultivated callus mature, bolting-silk filtering, sectioning processing and / or centrifugal collecting are carried out, the somatic cells, the gametophytes or the callus are placed into the culture media according to the requirements of different kinds of seaweeds, the temperature, the illumination and the osmotic pressure are controlled for cultivation, and the somatic cells, the gametophytes / sporophores and the callus of the seed seaweeds are attached to the silk net faces in the culture media; silk nets are then manually scattered into the offshore or the tidal zone to conduct conventional seawater cultivation. The seaweed cultivation method is simple in technology, low in cost, convenient to operate, short in seedling growing time, good in cultivation effect and high in cultivation yield, and manpower is saved.

The invention discloses a seaweed breeding ship, which is a rectangular flat-plate ship, comprising a metal boat frame, wherein a wooden deck is laid on the metal boat frame, a plastic foam layer loaded on the board is arranged below the wooden deck, and the plastic foam layer is coated with a waterproof coating layer. The algae breeding ship is essentially an offshore vessel so that wave resistance, stability and the like are not considered in design. The ship looks like a wall, the bottom and the deck are planar, the ship has very good bear capacity and large bearing space, and since there is no cabin structure, the seawater permeate during the harvest of seaweed will not accumulate on the ship, so the loading capacity of the ship is increased. The cost of building is also very small, the price of the ship is about 12,000 yuan, a build cycle is only 5 days. Therefore, the ship is very suitable for the production operation of seaweed culture.

The invention belongs to the technical field of seaweed cultivation, and particularly relates to an application of o-hydroxycinnamic acid in removal of harmful benthic diatom. The o-hydroxycinnamic acid is used as an algicide to remove the harmful benthic diatom, and the algicide-o-hydroxycinnamic acid used in the invention is an extract of gracilaria bailinae. Compared with a traditional diatom removal method, the application has the following remarkable advantages: (1) the diatom removal agent is easy to degrade in a natural environment and does not generate secondary pollution; (2) the effect is quick, the inhibition rate on adsorption type benthic diatom after 2 days, under the treatment of 3 mM / L o-hydroxycinnamic acid, exceeds 50%, operations are simple, and the manpower is saved; (2) the price is low and the acquisition is easy; therefore, the method for removing the harmful benthic diatom is an environment-friendly, efficient, and economical method of benthic diatom prevention and removal.

Large seaweed farms rely heavily on manual laborers during the planting and harvesting processes. A prevalent cultivation method among large farms involves placing seaweed spores on long ropes suspended beneath the sea surface. When the seaweed has grown to the desired length, laborers manually remove strands from said ropes. The present invention provides a system to automate the harvesting of seaweed from said ropes. The present invention combines propulsion, guidance, and harvesting mechanisms into a single unit cable of autonomously removing seaweed from said ropes.

The invention provides a device for cultivating alga with globigerina. According to the technical scheme, a plurality of boxes (5) are connected with welding box rings (3) on sides of the boxes through a rope above the flood tide (4) or along the sea current direction (2) to form a row, the box rings (3) at the two ends of a group of the boxes (5) are each connected with an iron anchor (1), and the two iron anchors (1) are thrown so as to straighten the connecting rope and fixe the group of the boxes (5); the cultivation boxes (5) are floated on the sea surface and parallel to lifting ropes (8) for cultivating the alga, the cultivation boxes (5) are before the sea current direction (2), and the lifting ropes (8) for cultivating the alga are behind the sea current direction (2); an alga cultivating device is mainly composed of floating ropes (6), floats (7), the lifting ropes (8), weight stones (9), seedling ropes (10) and wood piles (11). The device has the advantages that the globigerina is circularly utilized, healthy, efficient and large-scale economic alga cultivation is achieved, and the high-yield, efficient and environment-friendly requirements of modern fishery development are met.

The invention provides an algae culture method and device for artificial breeding of green sea turtles. The method comprises the following steps: S1, algae species selection, S2, algae branch collection, S3, algae branch fixation, S4, water body management, S5, illumination management, S6, pest killing management, and S7, algae cage management. The device comprises a square net structure algae frame, a cuboid algae cage and a rear side cover, wherein the square net structure algae frame is used for culturing Caulerpa racemesa and Caulerpa serrulata, the cuboid algae cage is used for containing the algae frame so that the green sea turtles can eat algae, is constructed by a stainless steel support and is provided with an opening in the rear side, and the rear side cover is located on the rear side of the algae cage and rotationally connected with the bottom surface of the algae cage through pin shafts. The algae culture method and device solve the problem that the recovery speed of the green sea turtle population is still very slow, and have the advantages that sustainable food is provided for the green sea turtles, and the green sea turtle culture environment is enlarged.

The invention relates to the technical field of seaweed cultivation devices, in particular to a drip irrigation type seaweed cultivation device. The drip irrigation type culture device for the seaweed comprises a water passing column, a drip irrigation device and a control device, wherein a buoy is arranged on the water passing column; the water passing pipe is located at the top of the water passing column and communicated with the water passing column, and a circle is defined by the water passing pipe; a plurality of water outlet pipes are arranged on the outer side of the water passing pipe; the micropore water pipe net curtain is located in a circle defined by the water passing pipe, the micropore water pipe net curtain is composed of a plurality of water pipes with micropores, the outer portions of the water pipes are each wrapped with a layer of netting formed by weaving vinylon ropes, and the micropore water pipes are communicated with the water outlet pipe. The drip irrigation type seaweed cultivation device is not limited to seaweed cultivation in deep and shallow sea areas, can also be used for cultivation on mud flat and even on land where seawater is introduced, overturns a traditional cultivation mode, is convenient to dry and dew, can freely control the seaweed drying and dew time by switching on and off the water pump at regular time, reduces seaweed diseases, improves the yield and quality, and is suitable for large-scale popularization and application. Moreover, fertilization is convenient, a nutrient solution can be added into the seawater subjected to suction filtration, manpower is saved, and the purposes of uniform fertilization and good effect are achieved.

The invention provides a seaweed farming tool with easy installation. The seaweed farming tool comprises fixing pillars, a support mechanism, farming mechanisms and counterweight mechanisms, and the fixing pillars are respectively welded to lower portions of left and right sides of the support mechanism; the farming mechanisms are respectively mounted on inner sides of the support mechanism; the counterweight mechanisms are respectively welded to lower portions of the farming mechanisms; the support mechanism comprises a cross beam, a right support, a left support, fixed pulleys, fixed hangingrings, fixed hooks and pulling ropes, and the right support is welded onto the right side of the cross beam; the left support is welded onto the left side of the cross beam; the fixed pulleys are respectively mounted on the lower portion of the cross beam. By the arrangement of the connecting hanging rings and the connecting hooks, farming tool bodies are favorably connected and are more stable in water flow; floating balls are stainless steel hollow floating balls, so that service life of the floating balls is favorably prolonged, and strength of the floating balls is improved.

The invention discloses a new type of raft for laver cultivation, which includes a live fitting, a strut, a connecting rope and a foot, and a strut is inserted and fixed between two live fittings along the axis of the transverse hole of the live fitting. The two ends of the rod are provided with pin holes, the lower end of the loose joint is inserted and fixed along the axis of the vertical hole, and the rear part of the joint is fixed with a connecting rope along the direction perpendicular to the axis of the horizontal and vertical holes. Rods and feet are made of moso bamboo, and the loose joint is made of plastic; a rope lock is fixed on the loose joint, and the connecting rope forms a W path in the rope lock. Under the pulling force of the connecting rope, the loose joint is locked. Died on the connecting rope. The invention has the advantages of good buoyancy of the breeding frame, convenient assembly and disassembly by farmers, low construction cost and high working efficiency.

The invention discloses a seaweed farm cleaning and maintaining device which comprises an air pump arranged on a ship, a traction vertical rod connected with the ship, a converging cover connected with the lower end of the traction vertical rod, an upper collecting tank connected with the converging cover and provided with an opening in the front end, a front vertical rod connected with the converging cover, a perturbator arranged at the lower end of the front vertical rod, a fish escape annular cavity formed in the outer side of the front portion of the upper collecting tank, a plurality of escape baffles arranged on the front side wall of the upper collecting tank and inclining towards the inner side of the upper collecting tank, an escape hole formed in the portion, below the escape baffles, of the side wall of the upper collecting tank, a guide cylinder arranged at the position, on the lower side of the fish escape annular cavity, of the opening in the front end, a conveying rotarydisc arranged in the rear portion of the guide cylinder, and a circular hole formed in the middle of the conveying rotary disc. The seaweed farm cleaning and maintaining device has the advantages that low-density garbage and high-density garbage above and within seaweeds of a seaweed farm can be conveniently collected, and the garbage recovery difficulty of the seaweed farm is reduced.

The invention belongs to the field of aquaculture, and particularly relates to an efficient low-death-rate feeding method for aquatic product seedlings. The bottoms of a seaweed culture pond, a flushing channel and a collecting pond are all located above the ground A. The seaweed culture pond is located at the upper portions of one sides of the flushing channel, a holothurian culture box and the collecting pond, and the distance between the bottom end of the seaweed culture pond and the ground is larger than that between the upper end faces of the flushing channel, the holothurian culture boxand the collecting pond and the ground. The holothurian culture box is detachably placed in the flushing channel, the interior of the holothurian culture box is flushed and cleaned, meanwhile, seaweedin adsorption water is captured and used for supplying food to holothurians in the holothurian culture box in the later period, the collecting pond is located at one side of an opening of the flushing channel, and the lower end of the seaweed culture pond is located at the upper portion of the upper end face of the flushing channel. The bottom end face of the flushing channel is located at the upper portion of the upper end face of the collecting pond, and water in the collecting pond returns to the seaweed culture pond again after being collected. The culture efficiency of the aquatic holothurians is improved, on one hand, impurities in the holothurian culture box are washed away by introducing water in the seaweed culture pond, and on the other hand, food is supplied to the holothurianculture box through the cooperation of the holothurian culture box and the flushing channel.

The invention relates to a three-dimensional cofferdam culture method for ginatesargassum kjellmanianum and sea cucumbers, and belongs to the field of aquaculture. For solving a plurality of problems such as water body eutrophication, low dissolved oxygen content, high illumination and bad bottom substrates which exist in the traditional single culture variety culturing process, a three-dimensional cofferdam culture method for the ginatesargassum kjellmanianum and the sea cucumbers is established by integrating the technical advantages of seaweed culturing and the technical advantages of sea cucumber culturing and learning from each other. The method comprises the steps of cofferdam building, culture environment adjusting, fry putting, culture managing, product harvesting and the like. Related experiments show that polyculture of the ginatesargassum kjellmanianum and the sea cucumbers is beneficial for improving the culture water body environment, improving the culture quality of the sea cucumbers, increasing the yield of the sea cucumbers and transforming from a traditional extensive aquaculture mode to an intensive aquaculture mode.

The invention discloses a multifunctional large-scale seaweed cultivation platform, which aims to provide the multifunctional large-scale seaweed cultivation platform that can purify water quality andsupplement seaweed groups through the diffusion of sporophytes during large-scale seaweed propagation; meanwhile, the multifunctional large-scale seaweed cultivation platform can achieve the wind wave prevention function through artificial settlement. The multifunctional large-scale seaweed cultivation platform comprises a base, a supporting floating frame, a seaweed cultivation device and a connecting and settling trigger mechanism, wherein the supporting floating frame is suspended above the base, and the supporting floating frame is connected with the base through a first connecting rope;the seaweed cultivation device comprises a floating platform, a seaweed frame and a connecting rod, wherein the floating platform is suspended above the supporting floating frame, the seaweed frame ispositioned above the floating platform, and the connecting rod is connected with the floating platform and the seaweed frame; the connecting and settling trigger mechanism comprises a counterweight block, a bottom contact release mechanism, a sliding sleeve body, a lower connecting piece and a second connecting rope, wherein the counterweight block is positioned below the supporting floating frame, the bottom contact release mechanism is arranged on the counterweight block, the sliding sleeve body is arranged in a vertical guide sleeve in a sliding manner, the lower connecting piece is arranged in the sliding sleeve body, and the second connecting rope is connected with the bottom contact release mechanism and the lower connecting piece.

The ecological protection offshore wind power system comprises a plurality of wind turbine generators used for wind power generation, a plurality of shellfish culture towers are arranged on the upstream portions of the wind turbine generators, and a plurality of seaweed culture devices are arranged on the upstream portions of the shellfish culture towers; the shellfish culture tower and the seaweed culture device are both of a floating structure. Foundation protection of an offshore wind power plant area is achieved through a marine ranch, and meanwhile the balance of income and expenditure is achieved through a mixed breeding mode so that sustainability can be achieved; the invention innovatively provides a novel shellfish culture mode which is combined with a raft type annular seaweed culture mode, so that the space can be developed and utilized to the greatest extent.

The invention discloses a method for removing hybrid algae during cultivation of gracilaria lemaneiformis, and belongs to the technical field of cultivation of algae. The method comprises the steps of: filling a pool with cultivation wastewater, fishing gracilaria lemaneiformis growing with the hybrid algae out of a cultivation land, compressing the gracilaria lemaneiformis into the cultivation wastewater, carrying out cultivation for 10-15 hours, taking out the gracilaria lemaneiformis, rinsing the gracilaria lemaneiformis with clean water, soaking the gracilaria lemaneiformis into a nutrientsolution for 1-1.5 hours, culturing the gracilaria lemaneiformis in disinfected seawater for 7-10 days, transferring the gracilaria lemaneiformis back to the cultivation land, and continuing to carryout cultivation. The method for removing the hybrid algae is simple and efficient, the hybrid algae are suffocated by virtue of the characteristic that the hybrid algae cannot survive for a long timein an environment in which the water temperature is 17-25 DEG C and no air circulates, and meanwhile, the gracilaria lemaneiformis is cultivated by virtue of the cultivation wastewater, so that on one hand, the cultivation wastewater is purified by virtue of the gracilaria lemaneiformis, a wastewater treatment operation is omitted, on the other hand, nutrients required by growth of the gracilarialemaneiformis are supplied by virtue of the cultivation wastewater, and the cost for replenishing the nutrient solution is saved.

The invention relates to a three-dimensional cofferdam culture method for ginatesargassum kjellmanianum and sea cucumbers, and belongs to the field of aquaculture. For solving a plurality of problems such as water body eutrophication, low dissolved oxygen content, high illumination and bad bottom substrates which exist in the traditional single culture variety culturing process, a three-dimensional cofferdam culture method for the ginatesargassum kjellmanianum and the sea cucumbers is established by integrating the technical advantages of seaweed culturing and the technical advantages of sea cucumber culturing and learning from each other. The method comprises the steps of cofferdam building, culture environment adjusting, fry putting, culture managing, product harvesting and the like. Related experiments show that polyculture of the ginatesargassum kjellmanianum and the sea cucumbers is beneficial for improving the culture water body environment, improving the culture quality of the sea cucumbers, increasing the yield of the sea cucumbers and transforming from a traditional extensive aquaculture mode to an intensive aquaculture mode.

The invention discloses a scaled cultivation method of sargassum horneri based on nutrient rapid propagation and belongs to the technical field of seaweed breeding. The method comprises the following steps of: 1) selecting a cultivation sea region; 2) collecting sargassum horneri main weeds and transporting and collecting floating sargassum horneri and conveying the same to the cultivation sea region; 3) gripping and sea cultivation: gripping the sargassum horneri on seedling ropes and hanging the seedling ropes on a raft rack; 4) daily management and harvesting: selecting the main weeds, then performing cultivation and harvesting; 5) main weed conservation and aestivation: continuously breeding and aestivating the main weeds in a region which is deep, large in flow and low in temperature; and 6) planting and cultivation of the main weeds again: continuously collecting the main weeds, gripping the same, and cultivating the same to obtain the main weeds and harvesting the sargassum horneri. The method for vegetative propagation by means of nutritional branches of the floating sargassum horneri has the characteristic of yearly growth, sargassum horneri can be cultivated on a large scale conveniently and rapidly, and the method is simple to operate, time- and labor-saving and high in growing speed, is not limited by manure main weeds, a lot of main weeds can be cultivated anytime, a phenomenon of seedling elimination is avoided, and the survival rate is high.