CN112471019B - Method for in-situ water treatment of portunus trituberculatus aquaculture pond - Google Patents
Method for in-situ water treatment of portunus trituberculatus aquaculture pond Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 241001533364 Portunus trituberculatus Species 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000009360 aquaculture Methods 0.000 title claims abstract description 25
- 244000144974 aquaculture Species 0.000 title claims abstract description 25
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 17
- 241000242583 Scyphozoa Species 0.000 claims abstract description 90
- 238000012258 culturing Methods 0.000 claims abstract description 14
- 239000004698 Polyethylene Substances 0.000 claims description 34
- -1 polyethylene Polymers 0.000 claims description 34
- 229920000573 polyethylene Polymers 0.000 claims description 34
- 230000000366 juvenile effect Effects 0.000 claims description 15
- 210000003608 fece Anatomy 0.000 claims description 10
- 239000010871 livestock manure Substances 0.000 claims description 10
- 239000002344 surface layer Substances 0.000 claims description 7
- 241000251468 Actinopterygii Species 0.000 claims description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000010813 municipal solid waste Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 241000272525 Anas platyrhynchos Species 0.000 claims description 5
- 241000287828 Gallus gallus Species 0.000 claims description 5
- 241000595940 Notostraca Species 0.000 claims description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 5
- 150000001413 amino acids Chemical class 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000002354 daily effect Effects 0.000 claims description 5
- 230000003203 everyday effect Effects 0.000 claims description 5
- 239000003864 humus Substances 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000009966 trimming Methods 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 241000238097 Callinectes sapidus Species 0.000 claims description 2
- 239000005416 organic matter Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 10
- 239000003337 fertilizer Substances 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 238000012851 eutrophication Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 230000004083 survival effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 241000206761 Bacillariophyta Species 0.000 description 1
- 241000239250 Copepoda Species 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009364 mariculture Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/20—Culture of aquatic animals of zooplankton, e.g. water fleas or Rotatoria
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
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- Engineering & Computer Science (AREA)
- Botany (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a method for in-situ water treatment of a portunus trituberculatus aquaculture pond, which belongs to the technical field of aquaculture and comprises the following steps: (1) preparing in the early stage of cultivation; (2) jellyfish culture; (3) culturing the portunus trituberculatus; (4) daily management; the jellyfish can eat the portunus trituberculatus residual bait and zooplankton, does not need regular fertilizer water, can reduce the culture cost and improve the growth speed of the jellyfish; compared with the traditional method for culturing the portunus trituberculatus in the single culture mode, the method saves water sources, reduces the pollution to the environment and has better ecological benefit; compared with jellyfish culture, the method reduces bait feeding, reasonably utilizes limited resources, has no secondary pollution and has better economic benefit.
Description
Technical Field
The invention relates to the technical field of aquaculture, in particular to a method for in-situ water treatment of a portunus trituberculatus aquaculture pond.
Background
In recent years, the cultivation of the portunus trituberculatus is rapidly developed. However, the bait in the culture process of the portunus trituberculatus mainly comprises wild trash fish. Not only the benefit is not high, but also the bait utilization rate is low, and the aquaculture water body is easy to pollute. Therefore, the problem of environmental pollution such as water eutrophication caused by the culture of the portunus trituberculatus is attracting more and more attention. Inorganic salts such as ammonia nitrogen, nitrite nitrogen and the like in the culture wastewater not only cause environmental pollution, but also stress the growth of the portunus trituberculatus, and even directly cause the death of a large number of portunus trituberculatus. The assimilation of phytoplankton and zooplankton in the aquaculture water is an effective measure for controlling the eutrophication of the aquaculture water. But the plankton mass propagation in the water body may consume a large amount of oxygen; in addition, the life cycle of plankton is limited. Therefore, if the plankton cannot be harvested or removed from the aquaculture water in time, the fixed nutrient salts such as inorganic nitrogen and phosphorus of the plankton after decay may cause serious pollution to the aquaculture water.
The jellyfish is a large-scale edible jellyfish and has high economic value. The jellyfish mainly takes plankton such as copepods, mesogens, telepods, cladocerans, diatoms and the like as main bait. The jellyfish has strong filter feeding property, can quickly control plankton in the aquaculture water body, can effectively control the eutrophication of the aquaculture water body, and has higher economic utilization value. The jellyfish natural resources distributed along the coast of China are limited, the output of the jellyfish is greatly influenced by environmental conditions and is unstable, but the jellyfish culture has the characteristics of low cost and high output, and is very suitable for artificial culture. In recent years, the jellyfish breeding industry is gradually paid attention to and paid attention to, becomes a new mariculture variety, and has a very wide development prospect. At present, the research on jellyfish at home and abroad mainly focuses on environmental conditions, growth and development, multi-variety mixed culture and the like.
In the prior art, in the process of culturing the portunus trituberculatus, in order to prevent the growth and survival of the portunus trituberculatus from being influenced by eutrophication of a water body, the water body of a pond is required to be regularly changed, so that the cost is increased, and the stability of the living environment of the portunus trituberculatus is influenced in the water changing process, so that the portunus trituberculatus can be killed in a large scale.
Therefore, a method for in-situ water treatment of a portunus trituberculatus aquaculture pond is provided to solve the problems.
Disclosure of Invention
The invention aims to provide a method for in-situ water treatment of a portunus trituberculatus aquaculture pond, which aims to solve the problems in the background art.
In order to realize the aim, the invention provides a method for in-situ water treatment of a portunus trituberculatus aquaculture pond, which comprises the following steps:
(1) preparation in the early stage of cultivation: trimming the pond to enable the bottom of the pond to be flat, keeping the water depth of the pond to be 2.5-3m, and enclosing a region close to the center of the pond by using a polyethylene net to serve as a jellyfish culture region, wherein the area enclosed by the polyethylene net accounts for 20-30% of the total area of the pond;
(2) jellyfish culture: stably keeping the temperature of the water body of the pond above 16 ℃, and putting the jellyfish seedlings in the jellyfish culture area, wherein the jellyfish seedling putting time is from the middle and last ten days of 5 months to the last ten days of 9 months;
(3) culturing the portunus trituberculatus: putting juvenile portunus trituberculatus into any position except a jellyfish culture area in a pond, putting juvenile portunus trituberculatus into the pond in a period II to a period V, regularly putting fairy shrimp into the pond, and regularly putting clam and fresh trash fish into the pond after juvenile portunus trituberculatus in the period V;
(4) daily management: patrolling every day and fishing out harmful organisms in the jellyfish culture area in time; cleaning the surface layer of the polyethylene net every month; fishing out dead portunus trituberculatus in time; and during the culture period, periodically detecting the water quality of the pond.
Preferably, in the step (1), after the pond is filled with water, organic matters are added into the pond.
Preferably, the organic matter comprises chicken manure, duck manure, humus and amino acid.
Preferably, the polyethylene net surrounding area is approximately circular, the upper edge of the polyethylene net is 20-30 cm higher than the water surface of the pond, and the mesh of the polyethylene net is 20-50.
Preferably, in the step (2), the seedling density in the middle and last ten days of 5 months can be controlled to 70-80 jellyfish seedlings with the diameter of 3-5cm, the seedling density in the last ten days of 6 months can be controlled to 50-60 jellyfish seedlings with the diameter of 5-7cm, and the seedling density in the last ten days of 9 months can be controlled to 30-50 jellyfish seedlings with the diameter of 7-10 cm.
Preferably, in the step (4), during water quality detection, the salinity of the pond water body is 16-24 per mill, the dissolved oxygen is not lower than 3mg/L, and the ammonia nitrogen is not higher than 0.6mg/L, PH and is 7.8-8.5; the transparency is 30-60cm, and the sulfide content is less than 0.2 mg/L.
The invention has the beneficial effects that:
the method is characterized in that the water temperature for culturing the portunus trituberculatus is generally above 18 ℃ and is matched with the survival temperature of jellyfish, the jellyfish and the portunus trituberculatus are cultured in a mixed manner in different regions, filter-feeding jellyfish is put in under the condition that the normal growth of the portunus trituberculatus is not influenced, the jellyfish mainly takes a large amount of plankton and organic debris in the water as food, the content of harmful wastes such as plankton and the like in the culture water is reduced, the risk of eutrophication of the water is reduced, zero water change or a small amount of water change in the culture process is realized, the survival rate of the portunus trituberculatus is favorably improved, and the yield of the portunus trituberculatus is increased; the culture environment can be improved, so that ecological and efficient blue crab culture is realized, meanwhile, the cost caused by regular water change is reduced, in addition, the jellyfish does not need to be fed with feed during the culture period, the jellyfish culture also brings higher economic value, and the income is increased;
compared with the traditional jellyfish pond culture mode, the jellyfish can eat the portunus trituberculatus crab residual bait and zooplankton, frequent fertilizer and water are not needed, the culture cost can be reduced, and the jellyfish growth speed can be improved; compared with the traditional method for culturing the portunus trituberculatus in the single culture mode, the method saves water sources, reduces the pollution to the environment and has better ecological benefit; compared with jellyfish culture, the method has the advantages that bait feeding is reduced, limited resources are reasonably utilized, secondary pollution is avoided, and good economic benefit is achieved;
the method has the advantages that the purpose of quickly fertilizing water is achieved by throwing organic matters into the pond, the growth of jellyfish and portunus trituberculatus is facilitated, the surface layer of the polyethylene net is cleaned every month, attachments on the surface layer of the polyethylene net are cleaned, the water body fluidity near the polyethylene net is increased, and the fact that residual baits and excrement of zooplankton and portunus trituberculatus can smoothly enter the polyethylene net enclosure is guaranteed; the invention ensures that the jellyfish grows rapidly and improves the water quality to the maximum extent by adjusting the jellyfish density in years.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A method for in-situ water treatment of a portunus trituberculatus aquaculture pond specifically comprises the following steps:
(1) preparation in the early stage of cultivation: trimming the pond to enable the bottom of the pond to be flat, keeping the water depth of the pond to be 2.5m, adding chicken manure, duck manure, humus and amino acid into the pond after water enters the pond, enclosing a region close to the center of the pond by using a polyethylene net to serve as a jellyfish culture region, wherein the area surrounded by the polyethylene net is approximately circular, the upper edge of the polyethylene net is 20cm higher than the water surface of the pond, the meshes of the polyethylene net are 20 percent, and the area of the polyethylene net accounts for 20 percent of the total area of the pond;
(2) jellyfish culture: stably keeping the temperature of the water body of the pond above 16 ℃, and putting the jellyfish seedlings in the jellyfish culture area, wherein the jellyfish seedling putting time is from the middle and last ten days of 5 months to the last ten days of 9 months;
(3) culturing the portunus trituberculatus: putting juvenile portunus trituberculatus into any position except a jellyfish culture area in a pond, putting juvenile portunus trituberculatus into the pond in a period II to a period V, regularly putting fairy shrimp into the pond, and regularly putting clam and fresh trash fish into the pond after juvenile portunus trituberculatus in the period V;
(4) daily management: patrolling every day and fishing out harmful organisms in the jellyfish culture area in time; cleaning the surface layer of the polyethylene net every month; adjusting the density of the jellyfish; fishing out dead portunus trituberculatus in time; and during the culture period, periodically detecting the water quality of the pond.
In the step (2), the seedling density in the middle and last ten days of 5 months can be controlled to 70 jellyfish seedlings with the diameter of 3cm, the seedling density in the last ten days of 6 months can be controlled to 50 jellyfish seedlings with the diameter of 5cm, and the seedling density in the last ten days of 9 months can be controlled to 30 jellyfish seedlings with the diameter of 7 cm; in the step (4), during water quality detection, the salinity of the pond water body is 16-24 per mill, the dissolved oxygen is not lower than 3mg/L, and the ammonia nitrogen is not higher than 0.6mg/L, PH and is 7.8-8.5; the transparency is 30-60cm, and the sulfide content is less than 0.2 mg/L; in the step (4), the jellyfish density is adjusted by increasing or decreasing the number of jellyfish in the purse net according to the content of zooplankton and organic debris in the purse net.
Example 2
A method for in-situ water treatment of a portunus trituberculatus aquaculture pond specifically comprises the following steps:
(1) preparation in the early stage of cultivation: trimming the pond to enable the bottom of the pond to be flat, keeping the water depth of the pond to be 2.5m, adding chicken manure, duck manure, humus and amino acid into the pond after water enters the pond, enclosing a region near the center of the pond by using a polyethylene net to serve as a jellyfish culture region, wherein the polyethylene net enclosure region is approximately circular, the upper edge of the polyethylene net is 25cm higher than the water surface of the pond, the mesh of the polyethylene net is 40, and the polyethylene net enclosure area accounts for 25% of the total area of the pond;
(2) jellyfish culture: stably keeping the temperature of the water body of the pond above 16 ℃, and putting the jellyfish seedlings in the jellyfish culture area, wherein the jellyfish seedling putting time is from the middle and last ten days of 5 months to the last ten days of 9 months;
(3) culturing the portunus trituberculatus: putting juvenile portunus trituberculatus into any position except a jellyfish culture area in a pond, putting juvenile portunus trituberculatus into the pond in a period II to a period V, regularly putting fairy shrimp into the pond, and regularly putting clam and fresh trash fish into the pond after juvenile portunus trituberculatus in the period V;
(4) daily management: patrolling every day and fishing out harmful organisms in the jellyfish culture area in time; cleaning the surface layer of the polyethylene net every month; adjusting the density of the jellyfish; fishing out dead portunus trituberculatus in time; and during the culture period, periodically detecting the water quality of the pond.
In the step (2), the seedling density in the middle and last ten days of 5 months can be controlled to be 75 jellyfish seedlings with the diameter of 4cm, the seedling density in the last ten days of 6 months can be controlled to be 55 jellyfish seedlings with the diameter of 6cm, and the seedling density in the last ten days of 9 months can be controlled to be 40 jellyfish seedlings with the diameter of 8 cm; in the step (4), during water quality detection, the salinity of the pond water body is 16-24 per mill, the dissolved oxygen is not lower than 3mg/L, and the ammonia nitrogen is not higher than 0.6mg/L, PH and is 7.8-8.5; the transparency is 30-60cm, and the sulfide content is less than 0.2 mg/L; in the step (4), the jellyfish density is adjusted by increasing or decreasing the number of jellyfish in the purse net according to the content of zooplankton and organic debris in the purse net.
Example 3
A method for in-situ water treatment of a portunus trituberculatus aquaculture pond specifically comprises the following steps:
(1) preparation in the early stage of cultivation: trimming the pond to enable the bottom of the pond to be flat, keeping the water depth of the pond to be 3m, adding chicken manure, duck manure, humus and amino acid into the pond after water enters the pond, enclosing a region near the center of the pond by using a polyethylene net to serve as a jellyfish culture region, wherein the polyethylene net surrounding region is approximately circular, the upper edge of the polyethylene net is 30cm higher than the water surface of the pond, the mesh of the polyethylene net is 50, and the polyethylene net surrounding area accounts for 30% of the total area of the pond;
(2) jellyfish culture: stably keeping the temperature of the water body of the pond above 16 ℃, and putting the jellyfish seedlings in the jellyfish culture area, wherein the jellyfish seedling putting time is from the middle and last ten days of 5 months to the last ten days of 9 months;
(3) culturing the portunus trituberculatus: putting juvenile portunus trituberculatus into any position except a jellyfish culture area in a pond, putting juvenile portunus trituberculatus into the pond in a period II to a period V, regularly putting fairy shrimp into the pond, and regularly putting clam and fresh trash fish into the pond after juvenile portunus trituberculatus in the period V;
(4) daily management: patrolling every day and fishing out harmful organisms in the jellyfish culture area in time; cleaning the surface layer of the polyethylene net every month; adjusting the density of the jellyfish; fishing out dead portunus trituberculatus in time; and during the culture period, periodically detecting the water quality of the pond.
In the step (2), the seedling density in the middle and last ten days of 5 months can control 80 jellyfish seedlings with the diameter of 5cm, the seedling density in the last ten days of 6 months can control 60 jellyfish seedlings with the diameter of 7cm, and the seedling density in the last ten days of 9 months can control 50 jellyfish seedlings with the diameter of 10 cm; in the step (4), during water quality detection, the salinity of the pond water body is 16-24 per mill, the dissolved oxygen is not lower than 3mg/L, and the ammonia nitrogen is not higher than 0.6mg/L, PH and is 7.8-8.5; the transparency is 30-60cm, and the sulfide content is less than 0.2 mg/L; in the step (4), the jellyfish density is adjusted by increasing or decreasing the number of jellyfish in the purse net according to the content of zooplankton and organic debris in the purse net.
Result detection
1. The method comprises the following steps: selecting 3 ponds of 80 mu, treating the ponds according to the methods in the embodiments 1 to 3 respectively, culturing the portunus trituberculatus in a traditional single-culture mode by using a control group, correspondingly detecting the water quality after culturing, and calculating the nitrogen and phosphorus content reduction amount by using the control group as a reference. Specific results are shown in table 1.
TABLE 1 results
In conclusion, as can be seen from table 1, the total yield of the portunus trituberculatus is improved by 16.3% by using the method of mixed culture of the jellyfish and the portunus trituberculatus in different regions, and the content of nitrogen and phosphorus in tail water is reduced by about 20%, which shows that compared with the traditional method for culturing the portunus trituberculatus in a single culture mode, the method has the advantages of saving water sources, reducing pollution to the environment and having better ecological benefit; compared with jellyfish culture, the method reduces bait feeding, reasonably utilizes limited resources, has no secondary pollution and has better economic benefit.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the method of making a high strength caliper seal to the specific embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A method for in-situ water treatment of a portunus trituberculatus aquaculture pond is characterized by comprising the following steps:
(1) preparation in the early stage of cultivation: trimming the pond to enable the bottom of the pond to be flat, keeping the water depth of the pond to be 2.5-3m, and enclosing a region close to the center of the pond by using a polyethylene net to serve as a jellyfish culture region, wherein the area enclosed by the polyethylene net accounts for 20-30% of the total area of the pond;
(2) jellyfish culture: stably keeping the temperature of the water body of the pond above 16 ℃, and putting the jellyfish seedlings in the jellyfish culture area, wherein the jellyfish seedling putting time is from the middle and last ten days of 5 months to the last ten days of 9 months;
(3) culturing the portunus trituberculatus: putting juvenile portunus trituberculatus into any position except a jellyfish culture area in a pond, putting juvenile portunus trituberculatus into the pond in a period II to a period V, regularly putting fairy shrimp into the pond, and regularly putting clam and fresh trash fish into the pond after juvenile portunus trituberculatus in the period V;
(4) daily management: patrolling every day and fishing out harmful organisms in the jellyfish culture area in time; cleaning the surface layer of the polyethylene net every month; adjusting the density of the jellyfish; fishing out dead portunus trituberculatus in time; and during the culture period, periodically detecting the water quality of the pond.
2. The method for in-situ water treatment of the portunus trituberculatus aquaculture pond of claim 1, wherein in step (1), organic matters are added into the pond after the pond is filled with water.
3. The method for in-situ water treatment of a portunus trituberculatus aquaculture pond of claim 2, wherein the organic matter comprises chicken manure, duck manure, humus and amino acids.
4. The method for in-situ water treatment of a portunus trituberculatus aquaculture pond of claim 1, wherein the area surrounded by the polyethylene net is approximately circular, the upper edge of the polyethylene net is 20-30 cm higher than the water surface of the pond, and the mesh of the polyethylene net is 20-50.
5. The method for in-situ water treatment of a swimming crab culturing pond according to claim 1, wherein in step (2), the density of the seedlings in the middle and last days of 5 months can be controlled to 70-80 jellyfish seedlings with an umbrella diameter of 3-5cm, the density of the seedlings in the last days of 6 months can be controlled to 50-60 jellyfish seedlings with an umbrella diameter of 5-7cm, and the density of the seedlings in the last days of 9 months can be controlled to 30-50 jellyfish seedlings with an umbrella diameter of 7-10 cm.
6. The method for in-situ water treatment of a portunus trituberculatus aquaculture pond of claim 1, wherein in step (4), the salinity of the water body of the pond is 16 per mill to 24 per mill, the dissolved oxygen is not less than 3mg/L, and the ammonia nitrogen is not more than 0.6mg/L, PH and is 7.8 to 8.5 when the water quality is detected; the transparency is 30-60cm, and the sulfide content is less than 0.2 mg/L.
7. The method for in-situ water treatment of a blue crab aquaculture pond according to claim 1, wherein in step (4), the jellyfish density is adjusted by increasing or decreasing the number of jellyfish in the purse net according to the content of zooplankton and organic debris in the purse net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011347404.XA CN112471019B (en) | 2020-11-26 | 2020-11-26 | Method for in-situ water treatment of portunus trituberculatus aquaculture pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011347404.XA CN112471019B (en) | 2020-11-26 | 2020-11-26 | Method for in-situ water treatment of portunus trituberculatus aquaculture pond |
Publications (2)
| Publication Number | Publication Date |
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Citations (4)
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| CN101919361A (en) * | 2010-09-01 | 2010-12-22 | 淮海工学院 | Ecological polyculture method for portunus trituberculatus mainly cultured in pond |
| CN103141426A (en) * | 2013-03-28 | 2013-06-12 | 中国水产科学研究院黄海水产研究所 | Method for efficiently breeding blue crabs |
| CN106069932A (en) * | 2016-06-27 | 2016-11-09 | 苏州市相城区阳澄湖镇剑美水产生态养殖专业合作社 | A kind of pollution-free breeding method of steamed crab |
| CN108077140A (en) * | 2018-02-08 | 2018-05-29 | 中国水产科学研究院黄海水产研究所 | A kind of method of Portunus trituberculatus Miers and the environmentally friendly seawater pond culture of stichopus japonicus |
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| CN101919361A (en) * | 2010-09-01 | 2010-12-22 | 淮海工学院 | Ecological polyculture method for portunus trituberculatus mainly cultured in pond |
| CN103141426A (en) * | 2013-03-28 | 2013-06-12 | 中国水产科学研究院黄海水产研究所 | Method for efficiently breeding blue crabs |
| CN106069932A (en) * | 2016-06-27 | 2016-11-09 | 苏州市相城区阳澄湖镇剑美水产生态养殖专业合作社 | A kind of pollution-free breeding method of steamed crab |
| CN108077140A (en) * | 2018-02-08 | 2018-05-29 | 中国水产科学研究院黄海水产研究所 | A kind of method of Portunus trituberculatus Miers and the environmentally friendly seawater pond culture of stichopus japonicus |
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