CN105766751A - Middle cultivating device suitable for northern demersal shellfish juvenile mollusk and method thereof - Google Patents
Middle cultivating device suitable for northern demersal shellfish juvenile mollusk and method thereof Download PDFInfo
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- CN105766751A CN105766751A CN201610366833.9A CN201610366833A CN105766751A CN 105766751 A CN105766751 A CN 105766751A CN 201610366833 A CN201610366833 A CN 201610366833A CN 105766751 A CN105766751 A CN 105766751A
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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
- 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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Abstract
The invention relates to the technical field of aquaculture, in particular to a middle cultivating device suitable for northern demersal shellfish juvenile mollusk and a method thereof. The cultivating device comprises a peripheral net cover internally provided with a hard framework and an interval net, an opening is formed in one side of the peripheral net cover, an opening zipper is arranged at the opening, and pulling ropes are arranged at the two ends of the peripheral net cover in the length direction. According to the cultivating method, the micro-ecological technology is adopted to regulate the pool environment, nutrition of natural bait in water is optimized and intensified, the survival rate and growth rate of juvenile mollusk pool middle cultivation are increased, and large-specification fry for bottom spreading can be acquired in the first year of fry rearing.
Description
Technical field
The present invention relates to technical field of aquaculture, particularly to a kind of benthic mollusca juvenile mollusk intermediate rearing device being suitable for the north and method thereof.
Background technology
Benthic mollusca is to expand the important biomolecule kind that northern China shallow sea bottom space utilizes.And the supply of appropriate gauge seed is to carry out a link critically important in artificial increasing cultivation.At present, the seed breeding that can successfully carry out the multiple benthic molluscas such as Scapharca broughtonii, Scapharca subcrenata, Concha Meretricis Seu Cyclinae is economized in Shandong, Liaoning etc., it is thus achieved that less than the juvenile mollusk of 2mm.Juvenile mollusk intermediate rearing mode adopts marine hanging culture to broadcast two kinds with the direct end, pond.But marine hanging culture operation sequence is loaded down with trivial details, and the cycle is long, cultivate juvenile mollusk in Second Year ability in spring up to broadcasting specification on earth.The mode being to have continued to use southern intertidal shellfish juvenile mollusk intermediate rearing is broadcast at the direct end, pond, but many impacts by mercury dropped when application in north China, pool water bait is not enough, it is impossible to be bred as then, and overwintering survival rate is low.Thus, in extensive artificial increasing cultivation, how benthic mollusca seed (specification is more than 10mm) is purchased from south.The backwardness of juvenile mollusk intermediate rearing mode becomes a key issue of restriction northern China benthic mollusca aquaculture industry development.
Summary of the invention
In view of this, the present invention provides a kind of benthic mollusca juvenile mollusk intermediate rearing method being suitable for the north, it is possible to solve the bait supply problem during juvenile mollusk is cultivated.
The present invention solves above-mentioned technical problem by techniques below means:
Being suitable for the benthic mollusca juvenile mollusk intermediate rearing device in the north, including peripheral net and hard skeleton, described hard skeleton is provided with spacer web, hard skeleton is arranged at intervals at peripheral net inside and two ends, and periphery net is divided into multiple cultivation unit；The side of peripheral net is provided with opening, and described opening is provided with opening zip, and the two ends on peripheral net length direction are provided with pull rope, and wherein the pull rope of one end is used for being fixed on pond bottom, and the pull rope of the other end is for being fixed on floating thing.
Further, described peripheral net is strip, long 6-8m, wide 50-70cm, high 15-25cm after expansion.
Further, described peripheral net is polyethylene knotless net, aperture 0.5-1cm.
Further, described hard skeleton material is plastic wire rod, and described plastic gauge or diameter of wire is 3-5mm, and hard skeleton is of a size of 50-70cm × 15-25cm.
Invention additionally discloses a kind of breeding method using the above-mentioned benthic mollusca juvenile mollusk intermediate rearing device being suitable for the north, comprise the steps:
1) adopt pond rearing, before pond uses, use substrate modifier to bottom material of pond for breeding disinfection, oxygen supplement facility is installed in pond；
2) juvenile mollusk is thrown in first 2-3 days, adjusts pond water level to highest order, and carries out rich water operation；
3) select calm or mild wind weather, juvenile mollusk is loaded in breeding apparatus, be invested in pond bottom, the parallel discharge of each breeding apparatus；
4) during intermediate rearing, every day opens oxygen supplement facility sooner or later, each operation 2-3 hour, within every 10-15 days, carries out a rich water operation；According to tide, supplement nature seawater once in the high-order time of tide；Every 15-25 days cleaning breeding apparatus 1 time；
5) to juvenile mollusk shell up to, during to more than 10mm, juvenile mollusk being cultivated and reclaim, and complete juvenile mollusk intermediate rearing.
Further, described step 1) in, adopt husky pond at the bottom of mud.
Further, described step 2) and step 4) in, rich water operation comprises the steps: to select fair weather, EM composite bacteria agent capable zeolite powder is mixed with flour, stir, and stand 1-2 hour under sunlight, then to splash uniformly in pond, EM composite bacteria agent capable, zeolite powder and flour make consumption and ratio be every mu of pond 1500g:5000g:250g.
Further, juvenile mollusk throws in specification is that shell is grown up in 1mm, density 7-10 ten thousand/cultivation unit.
Beneficial effects of the present invention is as follows:
The breeding apparatus of the present invention can separate cultivating juvenile mollusk with upper strata, pond aquaculture organism, it is achieved the three-dimensional culture of shellfish and shrimps, Fish, it is provided that pond waters utilization ratio；Meanwhile, this device utilizes frame structure as support, reduces bed mud alluvial, the cultivation space of separation, it is prevented that juvenile mollusk is piled up mutually, ensures the adequate space of growth and motion, operate simple and easy, it is simple to extensive juvenile mollusk is cultivated and gathers, and collapsible, easily transports.
The breeding method of the present invention is among other advantages, also breach traditional pond rich water method, micro ecological technology is adopted to carry out the regulation and control of pond environment, optimize and enhance the nutrition of natural bait in water body, improve survival rate and the speed of growth of juvenile mollusk pond intermediate rearing, can broadcast at the seed breeding First Year acquisition end and use large size seedling seed.
Figure of description
Fig. 1 illustrates the structural representation of the benthic mollusca juvenile mollusk intermediate rearing device being suitable for the north；
Fig. 2 has tried out a structure enlarged diagram cultivating unit in the benthic mollusca juvenile mollusk intermediate rearing device being suitable for the north.
Detailed description of the invention
Below with reference to example, the present invention is described in detail.
Referring to Fig. 1,2, it is suitable for the benthic mollusca juvenile mollusk intermediate rearing device in the north, including peripheral net 1 and hard skeleton 2, described hard skeleton 2 is provided with spacer web 3, hard skeleton 3 is arranged at intervals at peripheral net 1 inside and two ends, between hard skeleton 3, be advisable with about 80cm in interval, and peripheral net is divided into the cultivation unit that multiple length is about 80cm；The side of peripheral net 1 is provided with opening, described opening is provided with opening zip 4, two ends on peripheral net 1 length direction are provided with pull rope 5, and wherein the pull rope 5 of one end is used for being fixed on pond bottom, and the pull rope 5 of the other end is used for being fixed on floating thing 6.
Described peripheral net 1 is strip, long 6-8m, wide 50-70cm, high 15-25cm after expansion, it is preferred to long 7m, wide 60cm, high 20cm.
Described peripheral net 1 is polyethylene knotless net, aperture 0.5-1cm.
Described hard skeleton 2 material is plastic wire rod, and described plastic gauge or diameter of wire is 3-5mm, and hard skeleton 2 size is corresponding with peripheral net cross sectional dimensions, it is preferred to 60cm × 20cm.
Invention additionally discloses a kind of breeding method using the above-mentioned benthic mollusca juvenile mollusk intermediate rearing device being suitable for the north, comprise the steps:
1) select husky pond at the bottom of mud to cultivate, before pond uses, use substrate modifier to bottom material of pond for breeding disinfection, oxygen supplement facility is installed in pond；
2) juvenile mollusk is thrown in first 2-3 days, adjusts pond water level to highest order, and carries out rich water operation；
3) select calm or mild wind weather, juvenile mollusk is loaded in breeding apparatus, be invested in pond bottom, the parallel discharge of each breeding apparatus, non-overlapping；It is that shell is grown up in 1mm (for preventing from escaping, should be greater than the aperture of peripheral net), density 7-10 ten thousand/cultivation unit that juvenile mollusk throws in specification.
4) during intermediate rearing, every day opens oxygen supplement facility sooner or later, each operation 2-3 hour, within every 10-15 days, carries out a rich water operation；According to tide, supplement nature seawater once in the high-order time of tide；Every 15-25 days cleaning breeding apparatus 1 time, adopt the mode that original place is extracted, original place is washed away；
5) to juvenile mollusk shell up to, during to more than 10mm, juvenile mollusk being cultivated and reclaim, and complete juvenile mollusk intermediate rearing.
Above-mentioned rich water operation comprises the steps: to select fair weather, EM composite bacteria agent capable zeolite powder is mixed with flour, stir, and stand 1-2 hour under sunlight, then splashing uniformly in pond, EM composite bacteria agent capable, zeolite powder and flour make consumption and ratio be every mu of pond 1500g:5000g:250g.
Below with reference to example, the present invention is described in detail.
Example 1
For Juvenile Clam Scapharca subcrenata intermediate rearing, to adopt apparatus and method method provided by the invention to carry out the pond of intermediate rearing for test pond, what be provided without the method is comparison pond, the effect of contrast juvenile mollusk intermediate rearing.The pond that alternative condition is identical.Test pond juvenile mollusk is put in a suitable place to breed first 3 days, uses EM composite bacteria agent capable；Comparison pond is not done any water and is processed.Selecting shell length is that about 3mm juvenile mollusk is thrown in, and uses intermediate rearing cultivation apparatus, and each cultivation unit throws in juvenile mollusk 500g.After being sealed by breeding apparatus, directly it is invested in pond bottom.Every 15 days, manually being dragged by pond bottom by breeding apparatus, original place cleaning plant is cladded with silt, and original place is thrown in.Cultivating 45 days, observe and record juvenile mollusk growth and survival condition, result is table 1 below such as.Compare pond rearing juvenile mollusk after pond water temperature is lower than 15 DEG C, juvenile mollusk ghost showed increased.Adopting the present invention to provide the juvenile mollusk fast growth of breeding apparatus and method, survival rate is high, significantly improves juvenile mollusk and cultivates efficiency, and simple to operate, is suitable to use of large-scale production.
The Juvenile Clam Scapharca subcrenata growth of table 1 different ponds and survival condition contrast
Example 2
For Scapharca broughtonii juvenile mollusk intermediate rearing, contrast adopts the present invention to provide method pond intermediate rearing and tradition sea hanging culture, the difference of the growth of Scapharca broughtonii juvenile mollusk and survival benefit.JIUYUE 10 days, takes marine hanging culture Scapharca broughtonii juvenile mollusk, adopts the present invention to provide method and is installed on pond and carries out intermediate rearing.Cultivating 45 days, juvenile mollusk growth and survival condition are observed in sampling in every 15 days, and result is table 2 below such as.Visible, breeding apparatus of the present invention and method can provide more stable growing environment and sufficient food nutrition for juvenile mollusk, and juvenile mollusk rate of growth and survival rate are substantially better than marine hanging culture.
The growth of Scapharca broughtonii juvenile mollusk and survival condition contrast under table 2 different modes
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to preferred embodiment, it will be understood by those within the art that, technical scheme can be modified or equivalent replacement, without deviating from objective and the scope of technical solution of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention.
Claims (8)
1. it is suitable for the benthic mollusca juvenile mollusk intermediate rearing device in the north, it is characterized in that: include peripheral net (1) and hard skeleton (2), described hard skeleton (2) is provided with spacer web (3), hard skeleton (2) is arranged at intervals at peripheral net (1) inside and two ends, and periphery net (1) is divided into multiple cultivation unit；The side of peripheral net (1) is provided with opening, described opening is provided with opening zip (4), two ends on peripheral net (1) length direction are provided with pull rope (5), wherein the pull rope (5) of one end is used for being fixed on pond bottom, and the pull rope (5) of the other end is used for being fixed on floating thing (6).
2. it is suitable for the benthic mollusca juvenile mollusk intermediate rearing device in the north as claimed in claim 1, it is characterised in that: described peripheral net (1) is strip, long 6-8m, wide 50-70cm, high 15-25cm after expansion.
3. it is suitable for the benthic mollusca juvenile mollusk intermediate rearing device in the north as claimed in claim 2, it is characterised in that: described peripheral net (1) is polyethylene knotless net, aperture 0.5-1cm.
4. it is suitable for the benthic mollusca juvenile mollusk intermediate rearing device in the north as claimed in claim 1, it is characterised in that: described hard skeleton material is plastic wire rod, and described plastic gauge or diameter of wire is 3-5mm, and hard skeleton is of a size of 50-70cm × 15-25cm.
5. use the breeding method of the benthic mollusca juvenile mollusk intermediate rearing device being suitable for the north as according to any one of claim 1-4, it is characterised in that: comprise the steps:
1) adopt pond rearing, before pond uses, use substrate modifier to bottom material of pond for breeding disinfection, oxygen supplement facility is installed in pond；
2) juvenile mollusk is thrown in first 2-3 days, adjusts pond water level to highest order, and carries out rich water operation；
3) select calm or mild wind weather, juvenile mollusk is loaded in breeding apparatus, be invested in pond bottom, the parallel discharge of each breeding apparatus；
4) during intermediate rearing, every day opens oxygen supplement facility sooner or later, each operation 2-3 hour, within every 10-15 days, carries out a rich water operation；According to tide, supplement nature seawater once in the high-order time of tide；Every 15-25 days cleaning breeding apparatus 1 time；
5) to juvenile mollusk shell up to, during to more than 10mm, juvenile mollusk being cultivated and reclaim, and complete juvenile mollusk intermediate rearing.
6. it is suitable for the benthic mollusca juvenile mollusk intermediate rearing method in the north as claimed in claim 5, it is characterised in that: described step 1) in, adopt husky pond at the bottom of mud.
7. it is suitable for the benthic mollusca juvenile mollusk intermediate rearing method in the north as claimed in claim 5, it is characterized in that: described step 2) and step 4) in, rich water operation comprises the steps: to select fair weather, EM composite bacteria agent capable zeolite powder is mixed with flour, stir, and stand 1-2 hour under sunlight, then to splash uniformly in pond, EM composite bacteria agent capable, zeolite powder and flour make consumption and ratio be every mu of pond 1500g:5000g:250g.
8. it is suitable for the benthic mollusca juvenile mollusk intermediate rearing method in the north as claimed in claim 5, it is characterised in that: it is that shell is grown up in 1mm, density 7-10 ten thousand/cultivation unit that juvenile mollusk throws in specification.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610366833.9A CN105766751A (en) | 2016-05-26 | 2016-05-26 | Middle cultivating device suitable for northern demersal shellfish juvenile mollusk and method thereof |
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| CN201610366833.9A CN105766751A (en) | 2016-05-26 | 2016-05-26 | Middle cultivating device suitable for northern demersal shellfish juvenile mollusk and method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111011277A (en) * | 2019-12-27 | 2020-04-17 | 天津农学院 | Intermediate cultivation method suitable for benthic bivalve pond |
| CN112772481A (en) * | 2021-03-12 | 2021-05-11 | 浙江省海洋水产养殖研究所 | Temporary culture device in middle of mudflat shellfish genetic breeding family |
| CN113100147A (en) * | 2021-03-05 | 2021-07-13 | 山东省海洋生物研究院 | Ecological shellfish culture pond and culture method thereof |
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| KR100516982B1 (en) * | 2005-04-21 | 2005-09-28 | 태성건설 주식회사 | Shellfish house using to electric poles |
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| CN101288385A (en) * | 2007-10-12 | 2008-10-22 | 中国科学院海洋研究所 | Bottom-seed sea water culture facilities suitable for sediment bottom sea area |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111011277A (en) * | 2019-12-27 | 2020-04-17 | 天津农学院 | Intermediate cultivation method suitable for benthic bivalve pond |
| CN113100147A (en) * | 2021-03-05 | 2021-07-13 | 山东省海洋生物研究院 | Ecological shellfish culture pond and culture method thereof |
| CN113100147B (en) * | 2021-03-05 | 2022-12-13 | 山东省海洋科学研究院(青岛国家海洋科学研究中心) | Ecological shellfish culture pond and culture method thereof |
| CN112772481A (en) * | 2021-03-12 | 2021-05-11 | 浙江省海洋水产养殖研究所 | Temporary culture device in middle of mudflat shellfish genetic breeding family |
| CN112772481B (en) * | 2021-03-12 | 2022-11-04 | 浙江省海洋水产养殖研究所 | Intertidal shellfish genetic breeding family intermediate temporary rearing device |
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