79 results about "Benthic diatom" patented technology

The invention relates to an ecological trepang culture method in silt sandy ponds in coastlands, which belongs to the aquaculture field. The method comprises the steps of setting a pond, setting trepang reefs, disinfect the pond, controlling feed water, cultivating feedstuff, stocking young trepang and managing culture. The feedstuff culture which is performed in April to May comprises the following steps: firstly, transplanting benthic diatom in a height of 0.8 to 1 m feed water depth in the pond in the prior period, with 5 to 10 L of benthic diatom liquid per Chinese acre; secondly, transplanting ruppia maritime and amphilhoe japonice, especially, integrally transplanting ruppia maritime through pulling up by the roots according to the quantity of 5 to 15m per square meter, and transplanting amphilhoe japonica according to the quantity of 1.5 to 3 kg per Chinese acre after the transplanting of ruppia maritime; thirdly, poly-culturing mussel organism; fourthly, feeding water to the pond to the depth of 3 to 4 m, and stocking prawns according to the quantity of 500 to 1500 per Chinese acre. In the method of the invention, ecological feedstuff is adopted for transplanting and polyculture, therefore, not only the cost of artificial feedstuff is saved, but also the natural ecological environment is created for trepang culture.

The invention discloses a benthic diatom culture method for growing seedlings and an abalone fry culture method, which relate to an abalone culture technology. The invention is characterized by comprising the following steps: (1) starting culturing algaes 45 days before pulling seedlings, keeping the culture water temperature at 14 DEG C and the illuminance between 20001 and 30001x, controlling the light between 10001 and 15001x at the last culture after screening and eliminating algae culture for one and half a month, and laying ovum after 7 days; (2) adding nutrient salt at primary culture,wherein the adding ratio of N:P:Si:Fe is 5:1:1:1(ppm); (3) laying ovums about 5 millions for each pool and carrying out micro inflation; (4) changing water regularly after the ovums are laid and changing water twice a measuring range which is 24 hours; (5) carrying out running water culture after the ovums swim for 5 to 6 days and are adhered; (6) controlling the illuminance within 10001x after larvas metamorphose; and (7) dumping the pool after treating copepods at about 30 days of the culture period, adjusting the illuminance between 15001 and 20001x and peeling off baby abalones after about45 days. The methods have the advantages of improving the yield and preventing and treating a plate stripping disease.

The invention relates to a treatment method of middle-late stage attaching bases in shellfish seedling breeding, in particular to a method for treating the attaching bases (mesh sheets, red palm ropesand the like) of shellfish (scallops, mussels, arca inflata reeves and the like) by using the benthic diatom film method, thereby greatly improving the larval attaching rate and the metamorphosis rate. The method has convenient operation and can treat a large number of attaching bases. The treatment method and the attaching bases after treatment have no pollution and are safe and environment-friendly; more importantly, the seedling attaching effect is significantly better than the attaching bases treated by using the traditional method.

The invention relates to a method for realizing ecological larval culture on rapana venosa. The method is characterized by comprising the following steps of: firstly selecting a pond which is convenient in water exchange, takes lithoherm and stone bottom as a substrate and is in the size of 2-5Mu; then placing mature rapana venosa with the length of 7-10cm into the pond in the quantity of 100kg per Mu, mating and spawning after the rapana venosa eats ruditapes and mussel for 2-3 days, when enough oocysts are obtained, removing the rapana venosa away, incubating the oocysts for 20-22 days at the water temperature of 20-25 DEG C to obtain planktonic larva, growing the planktonic larva by eating the planktonic larva in the pond, starting to throwing polyethylene corrugated plate adherence ortile under the condition that the water temperature is 22-25 DEG C after 15-16 days, sticking benthic diatom and the planktonic larva onto the polyethylene corrugated plate or tile, transfigurating the planktonic larva of the rapana venosa into young spiral shell after 5-6 days, growing the transfigurated young spiral shell by eating the planktonic larva and benthic diatom on the corrugated plate, wherein the survival rate of the transfigurated young spiral shell on the corrugated plate can reach more than 50%, and feeding small low-value bivalve to the young spiral shell with the length morethan or equal to 3mm. By applying the method provided by the invention, the defects that the survival rate is low and the larval yield is low as bait conversion is difficult and water is polluted when carnivorous fish mice are used as feed in indoor artificial larval culture can be overcome, and the larval yield is improved by more than 50% compared with the indoor artificial larval culture. Meanwhile, the production cost is saved as no bait is thrown into the pond, thus the method is environment-friendly, and the produced larval is strong.

The invention discloses a breeding method of actinopyga miliaris, which is characterized in that: fishing the actinopyga miliaris which is big-sized, non-injury and mature-gonaded in natural sea areas as matrix; feeding the matrix with floating mud, sargassum thunbergii, pachyrhizus, egg yolk or artificial compound feed, culturing and maturing; obtaining germ cells by the method of artificially stimulating spawning and ejaculating at nights of natural spawning and ejaculating or non-moon; placing the germ cells in the incubating pond and incubating little ear shaped larva, pouring the larva into the culturing pool and fixing up the pool for the larva culture, putting marine yeast and spirulina powder in the pool for feed and replacing the water and charging the air of the culture water in time; after the ear shaped larva grow into juveniles, putting cultch in and feeding properly with benthic diatom, sargassum thunbergii grinded liquid, artificial compound feed or sea mud and replacing the culture water in combined manners of changing and moving water and reversing the pool; collecting and stocking the juveniles which reaches the standards. The method has reasonable technique and feasible operation. The juveniles of the actinopyga miliaris cultured by the method is qualified, healthy and non-disease.

The invention provides a method for ecologically controlling artificial breeding of abalone and relates to the abalone. The method comprises the following steps of: pumping pollution-free sea water of a clean sea area; carrying out sand leach by a sand leach system; precipitating and sterilizing the sea water subjected to the sand leach; and then introducing the sea water to a breeding pond; beginning to culture benthic diatoms on an abalone adhering substance surface 2 months before collecting an abalone fry; inoculating the benthic diatoms initially; adding nutritive salt; keeping micro-aeration; controlling illumination intensity; dumping the pond every 7-10d; then adding treated fresh sea water and continuously culturing the benthic diatoms; scattering EM (Effective Microorganism) bacteria 1 week before collecting the abalone fry to promote the formation of a microorganism flora on the abalone adhering substance surface; regulating the illumination intensity according to water temperature and water quality condition in the phase of culturing a young abalone; and adding 2-5g of microbial ecological agent to a water body per cubic meter every 10-15d. The method for ecologically controlling the artificial breeding of the abalone can effectively lower the production cost of the artificial breeding of the abalone, reduce environmental pollution and improve the abalone survival rate.

The invention discloses a bionic marine antifouling paint which comprises the following raw materials in parts by weight: 30-45 parts of fluorinated acrylic ester, 20-35 parts of silicone rubber, 2-10 parts of biological antifouling agent, 15-25 parts of filler, 0.5-1 part of organic bentonite, 0.5-1 part of polyethylene wax and 2-7 parts of propylene glycol. According to the bionic marine antifouling paint disclosed by the invention, P-cinnamate sulfate in the biological antifouling agent has a remarkably strong attachment inhibiting effect on marine bacteria and barnacle; homarine can prevent attachment of marine benthic diatom and barnacle; diterpene formamide has a function of inhibiting barnacle and shellfish larvae; the rubber silicon material and fluorinated acrylic ester material have extremely low surface free energy, low friction coefficient, high hydrophobicity and high contamination release performance, so that attachments are not easily attached or are insecurely attached.

The present invention belongs to the technical field of aquaculture, and relates to a large-scale artificial fingerling cultivation method of boleophthamus pectinirostris. The method comprises the following steps: site selecting, pond establishing, cleaning the pond for eliminating the harm, cultivating benthic diatom, selecting and putting the parent fish, cultivating the parent fish, spawning and hatching, fry rearing, fingerling cultivating, etc. The method of the invention has the advantages of scientific and reasonable property, easy actualization and excellent practicability. The method can realize large-scale artificial fingerling cultivation of large-standard boleophthamus pectinirostris. Furthermore the quality of cultivated fingerling is excellent. The survival rate of cultivated fingerling is high and the economic benefit is excellent.

The invention aims to provide a method for breeding apostichopus japonicus selenka. The method comprises the following steps of: placing oosperms of the apostichopus japonicus selenka in an hatching slot for hatching; breeding apostichopus japonicus selenka larvae in a breading tank after small auricularia larvae are produced by hatching the oosperms; putting attaching bases for collecting young apostichopus japonicus selenka when 20 to 30 percent of the apostichopus japonicus selenka larvae grow into doliolaria larvae; and screening and taking the young apostichopus japonicus selenka out of the tank when the young apostichopus japonicus selenka grow to the length of between 2 and 4cm, and transferring the young apostichopus japonicus selenka into a pool for breeding. The apostichopus japonicus selenka bred in the pool is not required to be fed, and natural basic bait organisms brought by water changing are taken as feeds such as chlamydomonas and benthic diatoms primarily. The apostichopus japonicus selenka is harvested by an artificial diving fishing method when growing to the weight of between 4 pieces / kg and 6 pieces / kg.

The invention discloses an artificial breeding method for Trochus niloticus. According to the artificial breeding method, a large number of Trochus niloticus larvae are bred by the steps of preparation of an attachment medium growing with benthic diatom, collection and incubation of fertilized ova and breeding management. A spawning incubation pond and a breeding pond are integrated into a whole,so that the injury to ova and larvae in the collection process is reduced, and the incubation is promoted. Meanwhile, by taking an outdoor pond as the breeding pond, the illumination requirements of diatom in the pond can be guaranteed, the continuous growth of bait in the breeding pond is promoted, and the natural feeding of the bait is increased, so that the pond transfer number of times is reduced. The method can be applied to the large-scale artificial breeding of Trochus niloticus, the breeding success rate can be guaranteed, and the operation is simple and convenient.

The invention relates to an artificial seeding method of ear abalone. Wherein, it comprises cultivating benthic diatom, breeding ear abalone, and cultivating young abalone, while the first step adds seawater into seed pool, filters benthic diatom, and lays bait plate, to cultivate the benthic diatom on the plate; and the second step selects healthy adult abalone to train and grow, and artificially induces the parent abalones, to lay eggs, and artificially fecundate in seawater, then selecting and breeding the young ones; and the third step lays bait plate adhered with benthic diatom into seeding pool, to adhere the young one on the bait plate, and remove it to network bank when grows to older one.

The invention discloses a bait-food for promoting the growth speed of sea hedgehog living, which consists of ulva immature spore attached to an attaching base and benthic diatom. The quantity ratio between the ulva immature spore and the benthic diatom is 1 : 40-80. The preparation method has the following specific steps: natane of the ulva is put in a sea pool which the attaching base is placed. The sea pool is cultured until the attaching base has attachments with a density of 1,500-2,500 / mm<2> and the attaching base is then poured into a new pool; 20g / m<3> of nutritive salt NaNO3 and 2g / m<3> of KH2PO4 are added into the sea water in the new pool; illumination intensity is 3800-4700lux and water temperature is 18-23 DEG C; pH is 31-33.4 and the attachments are cultured in an air inflation way until the ulva immature spore is produced; the benthic diatom is gathered on the attaching base and the quantity ratio between the ulva immature spore and the benthic diatom is 1 : 2-6; 30g / m<3> of NaNO3, 3.5g / m<3> of KH2PO4 and 0.2g / m<3> of NaSiO3 are added into the sea water and the illumination intensity is 2,800-3,600lux; the ulva immature spore and the benthic diatom are cultured until the quantity ratio thereof is 1 : 40-80.

The invention discloses a breeding method of a glyptocidaris crenularis offspring seed, comprising the following steps of: cultivating chaetoceros in a high temperature season, centrifugally concentrating and then storing at low temperature; beginning to cultivate benthic diatoms 10-20 days before collecting seedling of glyptocidaris crenularis, and selecting an individual with a shell diameter of at least 8 cm, health and no damage and favorable gonadal development at 2-3 ages as an affinity choline; inducing the affinity choline to lay eggs by using a KCl solution stimulus method, artificially inseminating, then hatching the germ cells in ponds according to the density of 3-5 per ml, micro-aerating in the hatching period and timing-stirring, wherein the hatching water temperature is 15-18 DEG C; selecting healthy larvae at the upper layer, breeding according to the density of 0.4-0.6 per ml, feeding the chaetoceros stored at low temperature in the breeding period; placing the grown infantile choline into a seedling-collecting pond internally provided with a corrugated plate where the benthic diatoms grow, and breeding the choline to reach the diameter of 3-5 mm; and peeling the infantile choline from the corrugated plate to be cultivated, and cultivating the infantile choline to grow into a young choline with the diameter of more than 1 cm, at this moment, the young choline can be used for artificial culture as the offspring seed.

The invention provides a method for ecologically purifying nitrogen and phosphorus in surface sediment of an aquaculture system. By using the ecological niche and life characteristics of benthic diatom and filamentous algae and through biomass proportioning and vital activity of the benthic diatom and filamentous algae, the aims of efficiently, economically and environment-friendly purifying nitrogen and phosphorus in the sediment surface layer and overlying water in an aquaculture environment are achieved.

The invention aims to provide a stichopus japonicus and abalone integrated-breeding method. In other words, both abalone and stichopus japonicus are put into abalone breeding cages and are bred in a shallow sea raft mode, and the stichopus japonicus and abalone integrated-breeding method is free of pollution and ecological and environmentally friendly. According to the method, the stichopus japonicus is bred in abalone breeding cages, the characteristic of deposition feeding habits of the stichopus japonicus is fully utilized, feces of the abalone in the breeding cages are removed, and the pollution of the organic matter in the feces of the abalone to the seabed is reduced. Meanwhile, the stichopus japonicus feeds organic detritus, benthic diatom and the like which are attached on the breeding cages so that the breeding environment can be cleaned, and flow inside and outside the breeding cages is smooth.

The invention discloses a nutrition formula used for promoting rapid growth of benthic naviculaceae. The nutrition formula is characterized in that the nutrition formula comprises macroelements, microelements and vitamins, wherein the macroelements comprise nitrogen, phosphorus and silicon, the microelements comprise iron, zinc, copper, manganese, molybdenum and cobalt, and the vitamins comprise vitamin B1, vitamin B12 and vitamin H. According to growth characteristics of requirements of the benthic naviculaceae to different nutritive salts, the formula can achieve an objective of promoting rapid growth of purebred benthic diatom cultures. The nutrition formula has reasonable nutrition collocation, and is capable of effectively promoting rapid division growth of the naviculaceae, promoting absorption and utilization of a variety of nutrients, accelerating metabolism of naviculaceae cells and improving the production quantity.

The invention discloses a coral reef belt transect investigation method. 100m long section is distributed under water, floating balls are fixed at two ends of the section, undersea camera shooting and photographing are carried out continuously and slowly at constant speed along the section at a constant height distant from a seabed by 20cm, and living coral reef coverage, dead coral reef coverage, gorgonian coverage, large-sized benthic diatom coverage, coral reef specific composition, substrate types and coverage, living coral dominant species and living coral population diversity are calculated according to the proportions of living coral, dead coral, gorgonian, substrate and large-sized benthic diatoms to the length of 100m according to shot videotapes and cameras. The coral reef belt transect investigation method is simple in operation, low in technical requirements and wide in sources of instruments and equipment, underwater operators do not need to have professional knowledge, common divers can complete the operation, undersea operation time is saved, labor intensity is reduced, investigation data are accurate, and the method provides a reliable guarantee for protecting coral reef resources.

The invention discloses a preparation method of environment-friendly bait for pinna and belongs to the field of aquaculture. The method is characterized in that high quality benthic diatom is cultured by an optimized culture medium, magnetized water, green light, palm bark, a glass goldfish bowl and the like, and then the mixed bait for the pinna is prepared by taking the benthic diatom as a major component and adding a small amount of sheep manure, rabbit manure, porcine blood powder, yeast powder, corn distiller, potamogeton malaianus powder, water caltrop powder, hydrilla varticillata powder, bone tankage, earthworm powder, fly maggot powder, artemia powder, kelp powder, garlic powder, methionine, lysine, potato powder, locust powder, lucerne meal, clam worm powder, trash fish and spiral shell meat meal. The bait is scientific and reasonable in formulation, nutrient-rich and lower in cost, is used for feeding the pinna and does not pollute water, the pinna grows quickly, has a strong constitution and is high in survival rate, and the yield is increased by 160%.

The invention relates to an ecological sea cucumber cultivation method, which includes the following contents: establishing an artificial cultivation pond and sorting out and disinfecting it; establishing an artificial ginseng reef, injecting new water, and cultivating benthic diatom seaweed; putting sea cucumber seedlings in; controlling the pond water in the cultivation process Water temperature, water quality; catch and market. The pollution-free and high-yield sea cucumber ecological breeding technology improves the traditional extensive farming technology, can greatly increase the yield and quality of sea cucumber, improve economic benefits, and promote the development of sea cucumber breeding industry.

The invention belongs to the industry of aquaculture and particularly relates to a benthic diatom culture method used for culturing breeding feed. The method is characterized by comprising the following steps: inoculating navicula tenera obtained by separation and purification and nitzchia palea to a liquid F culture medium in certain cell density, putting a circulating pump in the liquid F culture medium, and performing intermittent circulation, namely performing circulation for 10 minutes at intervals of every 2 hours, wherein the formula of the improved F culture medium comprises 149.6mg ofNaNO3, 8.8mg of NaH2PO4, 3.9mg of FeC6H5O7.5H2O, 1mL of trace element solution mother liquor, 1mL of vitamin solution mother liquor, 1000mL of pure water, vitamin mother liquor, 100mg of vitamin B1,0.5mg of vitamin B12 and 500mL of pure water; culturing benthic diatom in a 5000mL conical flask; and normally boiling seawater by adopting the improved F culture medium, wherein the salinity is 31, the illumination intensity is 50mu mol E.m<-2>s<-1>, the illumination period is 16L:8D, and the temperature is 20 DEG C. The benthic diatom culture method is simple, convenient and fast in operation, low in cost and suitable for popularization and application.

The invention relates to an artificial optimized culture method for sea squirts, microalgae and stichopus japonicus. The artificial optimized culture method for sea squirts, microalgae and stichopus japonicus is a bio-remediation technology for realizing self-purification of a culture water body and a sustainable marine product culturing method by utilizing a biological mutual benefit mechanism of a seawater polyculture system. The bait microalgae are inoculated in culture seawater; and the stichopus japonicus and the sea squirts are put into the culture water body with increased microalgae biomass. The inorganic nutritive salt in the seawater is converted into the microalgae biomass through the bioconversion of the microalgae so as to provide abundant bait for cultured organisms and simultaneously increase the concentration of dissolved oxygen in the water body. The sea squirts filtrate a large amount of sea water to remove grains and excess microalgae in the water body and settle a large quantity of aqueous layer particulate organic matters into a substrate in the form of feces and false faces. The demersal stichopus japonicus with a detritus food habit ingest the organic debris, benthic diatoms and microorganisms in the substrate so as to improve a substrate environment and reduce water body pollution. The artificial optimized culture method for sea squirts, microalgae and stichopus japonicus utilizes the polyculture system to promote the culture proliferation of the stichopus japonicus, carry out the self-purification and remediation of the culture water body, and realize the sustainable development of stichopus japonicus culture industry.

The invention provides a mixed culture method of alga and in particular relates to a mixed culture method of conferva and benthic diatoms. By adopting the method provided by the invention, a culture space is sufficiently utilized according to biological properties of the two types of alga; the culture method is more ecological and environment-friendly; the problem in a process of culturing the benthic diatoms on a carrier is avoided and the biomass of the benthic diatoms is extremely improved, so that high-density culture of the two types of alga is realized. Meanwhile, the problem in the prior art that the benthic diatoms are not easy to harvest is also solved through the method.

The invention provides a novel device and a novel method for cultivating benthic diatoms. Under the condition that the cultivating environment is controllable, the benthic diatom cultivating device makes full use of a water space for achieving stereo high-density cultivation of the benthic diatoms. The benthic diatom cultivating device is high in water utilization rate, and can make full use of photosynthetic CO2; cultivated microalgae are large in biomass.

The invention discloses an abalone fry cultivation method. The method comprises that: A. Benthic diatoms are cultured under strong light 2000-3000lx. B. The larvae of abalone are cultured directly in 5-10 square strip ponds, and then the sieve was selected and counted. C. According to the counting results, the number of abalone seedlings in floating period is determined, and cultured in the cultivation pond of pre-placed benthic diatom according to certain density. The cultivation method changes the time of the larvae of the abalone enter a large pool in the prior art, and therefore the cultivation of planktonic larvae is conducted in large space and low density, mechanical damages of single screen dragging selection is reduced, the dilemma of deaths of a large number of abalone larvae in the period of metamorphosis is well solved, the survival rate is improved, and the metamorphosis rate of larva is improved. The costs of abalone repurchase, nurturing, spawning and personnel employment is reduced, and the production cost is reduced.

The invention relates to an ecological culture technology for a seawater industrial workshop and belongs to the technical field of aquaculture. By reforming a prior seawater industrial culture workshop, the strongest illumination of a culture water surface is controlled between 2500lx-3000lx, a PVC rack with a size of 4m*4m*0.4m is built in a culture pond (6m*6m*1m, the water depth is 0.8m), 300-450kg of swimming fishes, 20-30kg of large algae and 10-20kg of benthic shellfish are stocked in the pond, the ratio of nitrogen to phosphorus to iron to silicon in the water body is adjusted to be 10-25:1-2.5:0.1:1-2.5, and a benthic diatom stock solution (106 / ml) of 1000-2000ml is introduced. only fish feed is put into the whole culture process, ammonia nitrogen in the culture process is degradedby using the large algae, and oxygen is generated for biological utilization; the benthic diatom is utilized to degrade residual bait and excrement and simultaneously provides bait for benthic shellfish; the whole system achieves the recycling of nutrients and the self-purification of the culture process under a static water culture condition.

The invention relates to a method for cultivating stichopus japonicus in a pond. Firstly a stichopus japonicus cultivation pond is built, the bottom of the pond is designed to be a slope type, the pond is internally provided with a water inlet gate and a water outlet gate, more than 30% of water is changed everyday, a drilled PV (polyvinyl) pipe is arranged at the bottom of the pond and is taken as an air charger to supply air for stichopus japonicus; secondly, stones are thrown into the pond to be taken as stichopus japonicus reef; thirdly, healthy stichopus japonicus seeds in large specification are selected; fourthly, concentrated, fresh and live benthic diatom are thrown and fed in Spring and Autumn when the stichopus japonicus can grow fast and are not thrown or fed in Winter and Summer dormancy; fifthly, a shading net is erected for cooling at the bottom of the pond during high temperature phase in Summer; and sixthly, the pond is cleaned once after the stichopus japonicus is harvested every year, and then the pond is managed according to the conventional methods.

The invention discloses a marine antifouling nano paint, which is prepared from the following raw materials: epoxy phenolic resin, titanium dioxide, a nano biological antifouling agent, filler, an acetic acid, and glyceryl tristearate. Capsaicin in the nano-scale biological antifouling agent has a good approach-avoidance effect on marine organisms; tannic acid has an adhesion inhibition effect on barnacle and also has a paralysis function on the beetle; shogaol has strong ability of preventing adhesive ability of mussel. P-cinnamic acid sulfate has a strong adhesion inhibition effect on marine bacteria and barnacle, homarine can prevent adhesion of marine benthic diatom and barnacle, and diterpenes formamide has an effect of inhibiting the barnacle and shellfish larvae. The paint disclosed by the invention comprises a nano-scale pure natural biological antifouling agent, has the approach-avoidance effect on marine organisms, and destroys the adhesive ability of the marine organisms, so as to achieve the target of preventing and treating pollution. The marine antifouling nano paint does not generate any deleterious effect on the marine environment, is free of an injury to the marine organisms, and is purely natural and harmless.

The invention relates to a cultivating method of young snails in hemifusus tuba artificial young snail growing, and belongs to the technical field of aquaculture. The cultivating method comprises thespecific steps of starting to cultivate benthic diatom for the initially hatched young snails to ingest food in an outdoor cement pool the third day to the fifth day after hemifusus tuba parent snailsgrow oocysts, wherein adherance of the benthic diatom is white PVC plastic corrugated tiles; washing and disinfecting a young snail growing pool the second day to the third day before the young snails are hatched out of the oocysts, uniformly laying the adherance fully grown with the benthic diatom at the bottom of the young snail growing pool and loading the oocysts to a plastic frame to be putto the young snail growing pool to be hatched; sifting the size through a sifting frame the ninth day to the tenth day after the young snails are hatched, and pool dividing cultivation is conducted. The cultivating method is easy and convenient to operate, the technology is easy to grasp, requirements for the young snails who just come out of film to be opened for bait can be met, the mutual slaughter of the young snails can also be effectively lowered, the survival rate of young snail cultivation in hemifusus tuba artificial young snail growing is increased by a large margin, and the growth of the young snails is promoted.

The invention discloses a seedling device and method for preventing mass mortality of larval haliotis diversicolor. The seedling device comprises attachment plates, a breeding pool, filter sea water, nutritive salts and a shading net; the attachment plates are used for breeding and attaching benthic diatoms and the larval haliotis diversicolor; the breeding pool is used for breeding the larval haliotis diversicolor; the filter sea water is arranged in the breeding pool and used for inoculating the benthic diatoms which are attached to the attachment plates which are arranged in the filter sea water; the nutritive salts are arranged in the filter sea water so as to promote the growth of the benthic diatoms; the shading net covers the breeding pool so as to adjust the growth rate of the benthic diatoms which are attached to the attachment plates. The seedling device is simple in structure, the seedling method is easy to operate, the larval haliotis diversicolor can climb onto the new attachment plate automatically after feeding benthic diatoms of the original attachment plate and continue feeding benthic diatoms of the new attachment plate so as to feed sufficient benthic diatoms and grow rapidly, and accordingly the larval haliotis diversicolor mass mortality caused by shortage or aging of bait which is arranged on the original attachment plate is avoided in the process of seedling and the survival rate of the larval haliotis diversicolor is improved.

The invention relates to an indoor industrial aquaculture method for conomurex luhuanus. The method comprises the following steps of controlling light of an aquaculture workshop, improving a temperature control system, improving a cement aquaculture pond, culturing benthic diatom, feeding conomurex luhuanus seedlings, selecting and treating artificial baitfeed, and daily managing. The method is improved by utilizing an existing aquaculture facility, and aquaculture conditions and baitfeed conditions suitable for the growth of the conomurex luhuanus are created.