CN103404455B - Novel adherence for industrial seedling raising of rapana venosa and use method of novel adherence - Google Patents
Novel adherence for industrial seedling raising of rapana venosa and use method of novel adherence Download PDFInfo
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- CN103404455B CN103404455B CN201310309727.3A CN201310309727A CN103404455B CN 103404455 B CN103404455 B CN 103404455B CN 201310309727 A CN201310309727 A CN 201310309727A CN 103404455 B CN103404455 B CN 103404455B
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- adherance
- rapana venosa
- rapana
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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 industrial seed production of aquaculture, in particular to a novel adherence for industrial seedling raising of rapana venosa and a use method of the novel adherence. The novel adherence adopts a non-transparent arched material provided with round holes in the rough surface, wherein bulges are arranged towards the outer sides and in the gravity center positions of the back side and the covered side of the adherence. The use method comprises the steps as follows: when 30%-50% of larvae of cultured rapana venosa grow to the four-spiral-whorl preliminary stage to the four-spiral-whorl middle stage, adherences attached with baits for changing feeding habits of rapana venosa on the surfaces are thrown into a nursery pond in a manner of laying at the pond bottom and a suspension manner under the light avoidance condition, then the processes of feeding habit change and metamorphosis are completed, and intermediate culturing of young rapana venosa is performed. With the adoption of the novel adherence and the use method, the rapana venosa larvae can smoothly complete the processes of feeding habits and metamorphosis in the industrial seedling raising.
Description
Technical field
The present invention relates to the batch production Seedling production of aquaculture, specifically a kind of novel adherance of Rapana venosa factorial seedling growth and using method.
Background technology
Rapana venosa Rapana venosa, is commonly called as " spinach spiral shell ", " conch ", belongs to Mollusca, Gastropoda, Muricidae, and red spiral shell belongs to, and adult shell Gao Keda 11-12cm, China Bohai Sea and the Huanghai Sea all have distribution.Its foot is loose especially, and delicious flavour is nutritious, very people institute eating, and economic worth is high.In the last few years, along with the decline of Rapana venosa near-coastal resources and the situation of selling well of domestic and international market, its economic worth improved constantly, and current live body price is 20-40 yuan/kilogram.
At present, Rapana venosa has the very large market demand, from the nineties in last century in China Bohai Sea and Huanghai Sea bank, some R&D institutions and nursery enterprise attempt carrying out artificial breeding, but mostly are failure, and efficiency of emerging is extremely low, also realize industrialized scale far away, cause propagating artificially and cannot carry out on a large scale.
At present, the main factor causing Rapana venosa seed breeding technology not reach a standard is the feeding habits transfer problem not solving Rapana venosa larva well.So-called feeding habits conversion refers in Rapana venosa larval metamorphosis process and needs to transfer ingestion animal bait to by the vegetal baits such as Micro Algae of ingesting.Feeding habits conversion is very crucial stage in Rapana venosa growth course, and the death of most of larva all occurs in this developmental stage.In Rapana venosa factorial seedling growth process, the animal bait major part used at present is the muddy flesh of fresh bivalve shellfish (as clam son, oyster, mussel etc.).Use bivalve shellfish muddy flesh very easily to cause water quality to ruin as animal bait, cause larva massive mortality, make nursery failure.
Summary of the invention
The object of the present invention is to provide a kind of novel adherance and using method thereof of Rapana venosa factorial seedling growth, solve the feeding habits conversion of Rapana venosa larva and abnormal and young spiral shell intermediate rearing problem.
To achieve these goals, technical scheme of the present invention is:
A novel adherance for Rapana venosa factorial seedling growth, adherance is opaque, rough surface, and the round-meshed arcuate material of surface distributed, wherein the adherance back side and clad can center of gravity place are provided with projection laterally.
Described adherance cross section is basket handle arch or skene arch, and wherein the clear height of basket handle arch is 15-20cm, and clear span is 20-40cm; The action of skene arch is 15-20cm, and chord length is 20-40cm, the long 30-60cm of straight flange of arched surface.
Described adherance is distributed with the circular hole of multiple diameter 3-6cm, circular hole is evenly distributed on the both sides of arched surface axis.
Each 2 circular holes in every side of the both sides of described arched surface axis, the circle center line connecting in homonymy two holes and the centerline parallel of arched surface length direction, the spacing of homonymy holes is 5-7cm.
The described adherance back side and clad can center of gravity place are provided with the projection of loop configuration laterally, and wherein the interior diameter of loop configuration is 0.5cm-1.0cm.
The using method of the novel adherance of Rapana venosa factorial seedling growth, when the Rapana venosa cultivated has the larvae development of 30-50% to four gyration mid-terms at gyration initial stage to four, under lucifuge condition respectively with pond at the bottom of laying type and underslung mode in nursery pond, throw in the adherance of attachment on the surface for Rapana venosa feeding habits conversion bait, Rapana venosa larva is made to be attached on the adherance of shaggy arcuate material, complete feeding habits conversion and metamorphosis process, and carry out young spiral shell intermediate rearing.
Laying type at the bottom of described pond is that directly in matrix, the mode of arrangement is layed at the bottom of pond by the adherance of arch, and the spacing between two between adherance is 30-50cm.
Many being hung with the many flat and stereos of hard pip being connected in series multiple adherance is arranged in nursery pond; Wherein every root hard pip is hung with multiple adherances of being connected by soft attachment by soft attachment.
The adherance vertical range 10.0-20.0cm between two of described series connection.
Described bait change for Rapana venosa feeding habits is oyster juvenile mollusk, bryozoan or barnacle, wherein oyster juvenile mollusk density be 5-30 individual/cm
2, oyster juvenile mollusk size is the long 0.1-3.0mm of shell; Maintain lucifuge condition at once after described input adherance, intensity of illumination is 0-10lx.
The present invention compared with prior art tool has the following advantages:
1. the present invention's oyster juvenile mollusk, bryozoan or barnacle are as the animal bait in the conversion of Rapana venosa larva feeding habits and metamorphosis process, change in the past directly to the adverse consequences of throwing in bivalve shellfish muddy flesh in Rapana venosa larvae cultivation pond and causing water quality deterioration, larva survival rate is high.
2. adherance of the present invention is opaque, and arched surface can form good dark surrounds, and research finds that Rapana venosa larva likes the environmental transport and transfer to dark in attachment stage, and therefore arcuate material is that the attachment of Rapana venosa larva provides good lucifuge condition and place.
3. adherance surface distributed of the present invention has pass structure, and the hierarchy distribution in many flat and stereos, not only take full advantage of space but also Rapana venosa larva can be facilitated to carry out vertical migration, each water layer moved in seedling water adheres to.
4. the back of the body clad can of each domes of adherance of the present invention is provided with loop configuration, adherance can be dismantled flexibly, can according to nursery pond specification, the seedling water degree of depth, regulate the quantity of hard pip in the quantity of monomer serial type structure on the quantity of arcuate material in monomer serial type structure, spacing and every root hard pip and nursery pond easily, to adapt to the nursery pond of all size, application is wide.
5. utilize the present invention to carry out Rapana venosa factorial seedling growth, larva can complete feeding habits conversion and metamorphosis process smoothly, and increase substantially the survival rate of Rapana venosa larva in feeding habits conversion and metamorphosis process, survival rate improves more than 70% than conventional method.
Accompanying drawing explanation
Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 are the structural representation of adherance of the present invention.Wherein,
Fig. 1 for the present invention be the adherance schematic diagram of the shaggy arcuate material that example provides.
Fig. 2 for the present invention be the adherance schematic diagram of the shaggy arcuate material that example provides.
Fig. 3 for the present invention be the monomer serial type structure intention in the adherance that provides of example.
Fig. 4 for the present invention be the monomer serial type structural representation being connected to arrangement in a row on hard pip that example provides.
Fig. 5 for the present invention be that the adherance suspension type that provides of example throws in schematic diagram; In figure, 1, projection; 2, shaggy arcuate material; 3, hole; 4, soft attachment; 5, dropstone; 6, hard pip.
Embodiment
The using method of the novel adherance of Rapana venosa factorial seedling growth of the present invention, detailed process is as follows:
The adherance be made up of shaggy arcuate material, before adherance is thrown in, shaggy arcuate material is adhered to oyster juvenile mollusk, bryozoan or barnacle, as the animal bait in the conversion of Rapana venosa larva feeding habits and metamorphosis process, when in nursery pond by more than 30-50% Rapana venosa larvae development to four gyration mid-terms at gyration initial stage to four time, under lucifuge condition respectively with pond at the bottom of laying type and suspension type in nursery pond, throw in above-mentioned adherance, Rapana venosa larva is made to be attached to oyster juvenile mollusk, in the shaggy arcuate material of bryozoan or barnacle, complete feeding habits conversion and metamorphosis process, and carry out young spiral shell intermediate rearing.
The illumination condition that the adherance of Rapana venosa factorial seedling growth of the present invention uses is: maintain lucifuge condition after throwing in adherance, intensity of illumination is 0-10lx.
As Figure 1-5, in the present invention, adherance is shaggy arcuate material, and concrete structure is as follows:
Shaggy arcuate material 2, cross section is basket handle arch or skene arch, the clear height of basket handle arch is 15-20cm, clear span is 20-40cm, the action of skene arch is 15-20cm, chord length is 20-40cm, and the long 30-60cm of straight flange of arched surface, shaggy arcuate material 2 is distributed with the hole 3 of diameter 3-6cm.There is the projection 1 being provided with loop configuration laterally at the back side and the clad can center of gravity place of the shaggy arcuate material in adherance used, and projection can be connected with soft attachment and fix, and the interior diameter of loop configuration is 0.5cm-1.0cm.(Fig. 1, Fig. 2).
Monomer serial type structure is made up of the arcuate material 2 of multiple series connection, and the arcuate material of the most end of its series connection connects dropstone 5 by soft attachment, is connected (Fig. 3) between arcuate material with arcuate material, between arcuate material with dropstone by soft attachment 4.
Multiple monomer serial type structure can be suspended in diverse location arrangement in a row on hard pip 5, hard pip is connected by soft attachment with between arcuate material, shaggy arcuate material, in nursery pond, is that matrix arrangement is layed in (Fig. 5) bottom nursery pond by many hard pip suspention monomer serial type Structural assignments simultaneously.
Below provide the several exemplary embodiments for Rapana venosa larva, but the present invention not merely limits in the examples below.
The experiment condition of above-described embodiment is: water temperature: 23-24 DEG C, salinity: 30-32 ‰, pH value: 7.6-7.8, larvae cultivation density: 0.1-0.2/ml, illumination 5lx, vegetal bait is thrown something and fed chrysophyceae, and adherance throws in opportunity for when 65% Rapana venosa larvae development is to four gyration initial stage to four gyration mid-term (the long 1000-1300 μm of shell); Shaggy arcuate material cross-sectional area is skene arch, chord length 30cm, action 20cm, the long 40cm of arched surface straight flange; Shaggy arcuate material is distributed with the hole of diameter 4cm.
Claims (7)
1. the using method of the adherance of a Rapana venosa factorial seedling growth, it is characterized in that: when the Rapana venosa cultivated has the larvae development of 30-50% to four gyration mid-terms at gyration initial stage to four, under lucifuge condition respectively with pond at the bottom of laying type and underslung mode in nursery pond, throw in the adherance of attachment on the surface for Rapana venosa feeding habits conversion bait, Rapana venosa larva is made to be attached on the adherance of shaggy arcuate material, complete feeding habits conversion and metamorphosis process, and carry out young spiral shell intermediate rearing;
Adherance is opaque, rough surface, and the round-meshed arcuate material of surface distributed, wherein the adherance back side and outside of belly center of gravity place are provided with projection laterally;
Described adherance cross section is basket handle arch or skene arch, and wherein the clear height of basket handle arch is 15-20cm, and clear span is 20-40cm; The action of skene arch is 15-20cm, and chord length is 20-40cm, and the wide of arched surface is 30-60cm;
Described adherance is distributed with the circular hole of multiple diameter 3-6cm, circular hole is evenly distributed on the both sides of arched surface axis.
2. according to the using method of the adherance of Rapana venosa factorial seedling growth according to claim 1, it is characterized in that: each 2 circular holes in every side of the both sides of described arched surface axis, the circle center line connecting in homonymy two holes and the centerline parallel of arched surface length direction, the spacing of homonymy holes is 5-7cm.
3. according to the using method of the adherance of Rapana venosa factorial seedling growth according to claim 1, it is characterized in that: the described adherance back side and outside of belly center of gravity place are provided with the projection of loop configuration laterally, and wherein the interior diameter of loop configuration is 0.5cm-1.0cm.
4. according to the using method of the adherance of Rapana venosa factorial seedling growth according to claim 1, it is characterized in that: laying type at the bottom of described pond is that directly in matrix, the mode of arrangement is layed at the bottom of pond by the adherance of arch, and the spacing between two between adherance is 30-50cm.
5. according to the using method of the adherance of Rapana venosa factorial seedling growth according to claim 4, it is characterized in that: many are hung with the many flat and stereos of hard pip being connected in series multiple adherance and are arranged in nursery pond; Wherein every root hard pip is hung with multiple adherances of being connected by soft attachment by soft attachment.
6. according to the using method of the adherance of Rapana venosa factorial seedling growth according to claim 5, it is characterized in that: the adherance vertical range 10.0-20.0cm between two of series connection.
7. according to the using method of the adherance of Rapana venosa factorial seedling growth according to claim 1, it is characterized in that: the described bait supplying Rapana venosa feeding habits to change is oyster juvenile mollusk, bryozoan or barnacle, wherein the density of oyster juvenile mollusk is 5-30/cm
2, oyster juvenile mollusk size is the long 0.1-3.0mm of shell; Maintain lucifuge condition at once after described input adherance, intensity of illumination is 0-10lx.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310309727.3A CN103404455B (en) | 2013-07-22 | 2013-07-22 | Novel adherence for industrial seedling raising of rapana venosa and use method of novel adherence |
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| CN201310309727.3A CN103404455B (en) | 2013-07-22 | 2013-07-22 | Novel adherence for industrial seedling raising of rapana venosa and use method of novel adherence |
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| CN103404455A CN103404455A (en) | 2013-11-27 |
| CN103404455B true CN103404455B (en) | 2015-04-15 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104705221B (en) * | 2013-12-16 | 2017-06-13 | 财团法人工业技术研究院 | Aquatic animal seedling combined type adhesion equipment |
| CN103975885A (en) * | 2014-06-03 | 2014-08-13 | 广西壮族自治区水产科学研究院 | Preparation method of Crassostrea hongkongensis fixation medium, Crassostrea hongkongensis fixation medium and application method of Crassostrea hongkongensis fixation medium |
| CN104285859B (en) * | 2014-10-13 | 2016-05-04 | 中国科学院海洋研究所 | A kind of adherance and supporting device of collecting seedling thereof of producing oyster monomer seed |
| CN105613360B (en) * | 2014-11-04 | 2018-10-26 | 中国科学院海洋研究所 | A kind of oopod acquisition of Rapana venosa industrial seedling rearing and hatching apparatus and its application method |
| CN110269016A (en) * | 2019-07-04 | 2019-09-24 | 湖南文理学院 | Artificial raise seedling method based on water pearl culture |
| CN113349117A (en) * | 2020-03-03 | 2021-09-07 | 中国海洋大学 | Method and device for ecologically breeding rapana venosa in pond |
| CN115044532B (en) * | 2022-06-23 | 2023-05-26 | 中国科学院海洋研究所 | Construction and identification method of rapana venosa embryo cell line |
| CN116391653B (en) * | 2023-02-22 | 2024-03-29 | 中国科学院南海海洋研究所 | Method for judging cement-based adhesive matrix throwing time and improving oyster larva adhesive rate |
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| CN201064133Y (en) * | 2007-07-05 | 2008-05-28 | 大连水产学院 | Sea cucumber larvae fluted sheet cultch |
| CN101940182A (en) * | 2010-09-19 | 2011-01-12 | 中国海洋大学 | Manual grow seedlings method of Rapana venosa spat |
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