CN103814857B - A kind of fish crab culturing pool and cultural method thereof - Google Patents
A kind of fish crab culturing pool and cultural method thereof Download PDFInfo
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- CN103814857B CN103814857B CN201410052899.1A CN201410052899A CN103814857B CN 103814857 B CN103814857 B CN 103814857B CN 201410052899 A CN201410052899 A CN 201410052899A CN 103814857 B CN103814857 B CN 103814857B
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- 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
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- 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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Abstract
The invention discloses a kind of fish crab culturing pool and cultural method thereof, culturing pool is divided into fish farming area and crab farming district, described crab farming district is in centre, it is peripheral that crab farming district is located in described fish farming area, separation net is set between described fish farming area and crab farming district, water is introduced culturing pool, make the fish farming area depth of water be not less than 130cm, the crab farming district depth of water is not less than 50cm, throws in herbivorous fishes fingerling and crab kind respectively in fish farming area and crab farming district.Fish crab is supported in same environment by the present invention altogether, and the recycling of the nitrogen and phosphorus pollution thing that realizing breeds fish produces and the excess dissolved oxygen that crab farming produces and pasture and water, reaches fish crab fertile mutually.
Description
Technical field
The present invention relates to a kind of aquaculture pond, be specifically related to a kind of cultivating pool of fish crab mixed breed and use the method for this pond culture fish crab.
Background technology
In recent years, China's fresh water water quality is in continuous deterioration.Its honor of Agricultural University Of Nanjing Shen etc. shows the investigation in Taihu Lake, from body eutrophication Material Source, the nutrient contribution rate from inflow Taihu Lake, farmland accounts for 20%, accounts for 40% from aquatic products, livestock and poultry cultivation, account for 20% ~ 30% from town domestic sewage and mud, also have other sources to account for 10% ~ 20%.Illustrate that self water pollutions that aquaculture causes can not be despised.
In order to administer breeding pollution, from country to place, all take a series of behave.For Jiangsu, important culturing area has completed circulating water cultivation transformation of facility all.For this reason, Government and enterprise has all dropped into a large amount of man power and materials.
But cause the so-called pollutant of body eutrophication, mainly nitrogen and phosphorus, be also nutriment for aquaculture.These nutriments are utilized by micro-algae, micro-algae again by zooplankton and filter-feeding aquatic animal eat, thus become the natural bait of aquatic livestock directly or indirectly.Micro-algae is also produced oxygen by photosynthesis, for aquatic animal provides sufficient dissolved oxygen." when the water is too clear there are no fish ", cultivating pool requires that water quality has certain fertile degree.
Because the oxygen demand of cultivated animals is higher than micro-algae photosynthesis oxygen-producing amount, thus often there is the phenomenon that anoxic is raised the nose above water to breathe in high-density breeding pond, especially after midnight with sunrise before and after.In order to ensure fish normal growth, aerator need be equipped with.But for crab farming (Eriocheir sinensia, also river crab, crab is claimed) pond, because breeding density is very low, Yield Fish Culture Ponds river crab output also only has about 100kg, and in pond, needing to plant the shelter that a large amount of pasture and water shell as crab, its photosynthesis oxygen-producing amount far exceedes crab oxygen demand, causes pond dissolved oxygen supersaturation, especially afternoon at fine day, dissolved oxygen can reach more than 15mg/L.Meanwhile, photosynthesis consumes CO2, makes PH be raised to more than 9.5, and so high dissolved oxygen and PH are also unfavorable for river crab growth and health, also have certain negative effect to crab body colour.Simultaneously, pasture and water have competitive inhibition to micro-algae, crab farming pond clear water matter makes river crab can not obtain enough natural baits, thus also just can not to obtain in that himself can not synthesize but many micro-algaes the nutriment relevant with body colour and health such as contained astaxanthin.In addition, the pasture and water of crab farming pond undue growth also need to remove, and the pasture and water of salvaging out are often thrown away forms secondary pollution on bank.But the eel grass planted in crab farming pond, waterweed etc. can as the bait of herbivorous fishes.
Summary of the invention
Goal of the invention of the present invention is to provide a kind of fish crab culturing pool and cultural method thereof, is supported altogether by fish crab in same environment, and the recycling of the pollutant such as nitrogen, phosphorus that realizing breeds fish produces and the excess dissolved oxygen that crab farming produces and pasture and water, reaches the effect that fish crab is fertile mutually.
To achieve the above object of the invention, the technical solution used in the present invention is: a kind of fish crab culturing pool, described culturing pool area is not less than 10 mu, comprise fish farming area and crab farming district, it is peripheral that described fish farming area is positioned at crab farming district, and the described fish farming area depth of water is not less than 130cm, the described crab farming district depth of water is not less than 50cm, be provided with crab between described fish farming area and crab farming district to prevent escaping separation net, described separation net mesh size is less than 2.2cm, and the area ratio in described fish farming area and crab farming district is 3:7 to 7:3.
In technique scheme, side, described crab farming district is provided with projection, be provided with gate along protruding bearing of trend in described fish farming area, described gate upper end flushes with edge in crab farming district projection, and described projection and gate can surround a closed dispenser region in fish farming area.
In technique scheme, described height of projection is at least 30cm, and described projection is provided with anti-escape device, and described anti-escape device is generally calcium-plastic board.
In technique scheme, described culturing pool is rectangle.
Further technical scheme, as required, is also provided with aerator in described fish farming area.
A kind of fish crab cultural method, culturing pool is divided into fish farming area and crab farming district, described crab farming district is in centre, it is peripheral that crab farming district is located in described fish farming area, and between described fish farming area and crab farming district, arrange separation net, described separation net mesh size is less than 2.2cm, water is introduced culturing pool, make the fish farming area depth of water be not less than 130cm, the crab farming district depth of water is not less than 50cm, throws in fingerling and crab kind respectively in fish farming area and crab farming district.
In technique scheme, fish farming area planted agent puts the herbivorous fishes such as bream, grass carp in a suitable place to breed, is especially advisable with large size fingerling, to reduce medication probability.
The present invention is when dispenser, all surface in the bossing and the gate upper end that first cultivation pool inner water potential drop are low to moderate crab farming district, close a side gate, use water pump to make water form current to opposite side gate direction in fish farming area, utilize fish to like adverse current travelling habit fish to be drawn dispenser region and then close opposite side gate.Can reduce drug concentration by the method for changing water in applying area after dispenser, then open gate, moisturizing is to suitable water level.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1. cultivation Division is fish farming area and crab farming district by the present invention, fish crab is carried out mixed breed, the excessive dissolved oxygen in crab farming district can be that fish are used, micro-algae of fish farming area can improve crab body colour and local flavor, the pasture and water of crab farming district undue growth also can be herbivorous fishes and eaten, realize the recycling of pollutant, reduce breeding water body oxygen enrichment, realize fish crab fertile mutually.
2. the present invention is provided with projection in side, crab farming district, two gates are provided with along protruding bearing of trend in fish farming area, when water level is down to after projection surfaces, projection forms independently dispenser region with gate and edge, fish farming area, gate is opened after drug concentration in deployed dispenser region, by water level rezime to starting altitude, thus conventional application method can be reduced because of the uneven impact on fish crab of drug concentration, and simplify dispenser process.
Accompanying drawing explanation
Fig. 1 is the structural representation of culturing pool of the present invention in embodiment one.
Fig. 2 is the side sectional view of Fig. 1.
Wherein: 1, culturing pool; 2, fish farming area; 3, crab farming district; 4, separation net; 5, protruding; 6, gate; 7, anti-escape device; 8, dispenser region.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment one: shown in Figure 1, a kind of fish crab culturing pool, described culturing pool 1 area is not less than 10 mu, comprise fish farming area 2 and crab farming district 3, it is peripheral that described fish farming area is positioned at crab farming district, and the described fish farming area depth of water is not less than 130cm, the described crab farming district depth of water is not less than 50cm, be provided with crab between described fish farming area and crab farming district to prevent escaping separation net 4, described separation net mesh size is less than 2.2cm, and the area ratio in described fish farming area and crab farming district is 3:7 to 7:3.
In the present embodiment, be provided with the projection 5 being not less than 30cm in side, crab farming district, projection is provided with anti-escape device 7, is provided with gate 6 in fish farming area along protruding bearing of trend, gate upper end flushes with the upper edge of crab farming district projection, and protruding and gate can surround a closed dispenser region 8 in fish farming area.
As required, also aerator is provided with in fish farming area of the present invention.
A kind of fish crab cultural method, culturing pool is divided into fish farming area and crab farming district, described crab farming district is in centre, it is peripheral that crab farming district is located in described fish farming area, separation net is set between described fish farming area and crab farming district, water is introduced culturing pool, make the fish farming area depth of water be not less than 130cm, the crab farming district depth of water is not less than 50cm, throws in fingerling and the crab kind of herbivorous fishes respectively in fish farming area and crab farming district.
Claims (5)
1. a fish crab culturing pool, described culturing pool area is not less than 10 mu, comprise fish farming area and crab farming district, it is characterized in that: it is peripheral that described fish farming area is positioned at crab farming district, the described fish farming area depth of water is not less than 130cm, the described crab farming district depth of water is not less than 50cm, be provided with crab between described fish farming area and crab farming district to prevent escaping separation net, described separation net mesh size is less than 2.2cm, the area ratio in described fish farming area and crab farming district is 3:7 to 7:3, side, described crab farming district is provided with projection, gate is provided with along protruding bearing of trend in described fish farming area, described gate upper end flushes with edge in crab farming district projection.
2. a kind of fish crab culturing pool according to claim 1, is characterized in that: described height of projection is at least 30cm.
3. a kind of fish crab culturing pool according to claim 1, is characterized in that: described projection is provided with anti-escape device.
4. a kind of fish crab culturing pool according to claim 1, is characterized in that: described culturing pool is rectangle.
5. a kind of fish crab culturing pool according to claim 1, is characterized in that: described fish farming area is provided with aerator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410052899.1A CN103814857B (en) | 2014-02-17 | 2014-02-17 | A kind of fish crab culturing pool and cultural method thereof |
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| CN201410052899.1A CN103814857B (en) | 2014-02-17 | 2014-02-17 | A kind of fish crab culturing pool and cultural method thereof |
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| CN103814857A CN103814857A (en) | 2014-05-28 |
| CN103814857B true CN103814857B (en) | 2015-11-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105613368A (en) * | 2015-12-28 | 2016-06-01 | 朱夏峰 | Three-dimensional culture method and device |
| CN105475203A (en) * | 2015-12-28 | 2016-04-13 | 苏州市相城区太平蟹业专业合作社 | Ecological fish and crab farming method |
| CN106106285A (en) * | 2016-06-30 | 2016-11-16 | 淮南市农康生态农业有限公司 | A kind of pond natural, ecological cultural method of swimming crab |
| CN106888999A (en) * | 2017-02-28 | 2017-06-27 | 铜仁市凯盛水产养殖有限公司 | A kind of disease prevention method of cray |
| CN107691306A (en) * | 2017-11-14 | 2018-02-16 | 合肥康青源养殖有限公司 | Crucian and crab ecological cultivation method |
| CN107821289B (en) * | 2017-12-04 | 2023-07-25 | 中国水产科学研究院南海水产研究所 | Prawn culture pond suitable for siganus oramin for removing macroalgae and application method |
| CN108739553A (en) * | 2018-08-09 | 2018-11-06 | 合肥康青源养殖有限公司 | A kind of ecology ichthyophagy crab cultural method |
| CN110326557A (en) * | 2019-07-12 | 2019-10-15 | 南京帅丰饲料有限公司 | The cultural method of crab and mandarin fish |
| CN112493185A (en) * | 2020-11-30 | 2021-03-16 | 广东大麟洋海洋生物有限公司 | Ecological breeding method for golden pomfret |
| CN117981708B (en) * | 2024-04-02 | 2024-06-11 | 江苏龙腾工程设计股份有限公司 | Intelligent fishery cultivation system with complementary fishery photovoltaics |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766138A (en) * | 2010-01-13 | 2010-07-07 | 苏州大学 | Circulating-water aquaculture system and application thereof |
| CN102630626A (en) * | 2011-12-16 | 2012-08-15 | 苏州市阳澄湖消泾虾蟹产销专业合作社 | Distribution of environment-friendly aquaculture farm |
| CN102657107A (en) * | 2011-12-09 | 2012-09-12 | 大通湖天泓渔业股份有限公司 | Method for culturing river crabs and grass carps in a pond |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101766138A (en) * | 2010-01-13 | 2010-07-07 | 苏州大学 | Circulating-water aquaculture system and application thereof |
| CN102657107A (en) * | 2011-12-09 | 2012-09-12 | 大通湖天泓渔业股份有限公司 | Method for culturing river crabs and grass carps in a pond |
| CN102630626A (en) * | 2011-12-16 | 2012-08-15 | 苏州市阳澄湖消泾虾蟹产销专业合作社 | Distribution of environment-friendly aquaculture farm |
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