CN104982364A - Breeding method for large-size dosinia laminata spats - Google Patents
Breeding method for large-size dosinia laminata spats Download PDFInfo
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- CN104982364A CN104982364A CN201510403521.6A CN201510403521A CN104982364A CN 104982364 A CN104982364 A CN 104982364A CN 201510403521 A CN201510403521 A CN 201510403521A CN 104982364 A CN104982364 A CN 104982364A
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- dosinia
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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 discloses a breeding method for large-size dosinia laminata spats. The breeding method is characterized by comprising the following steps: collecting dosinia laminata from a natural sea area as a parent sample, and carryingn out maturity promotion of the parent sample in indoor water; after maturation of sexual gland and completion of spawning and spermiation of the parent sample, collecting D-shaped dosinia laminata larvae with a landing net prepared from 260-to-300-mesh silken cloth; then tranfering the D-shaped dosinia laminata larvae to a cement pool and carrying out larva culture; after 20 to 30% of the dosinia laminata larvae appear feet and eyespots, putting sea sand with a particle size of 0.2 to 0.5 mm as an adhering substance into the cement pool for spat collection; when juvenile dosinia laminata has a shell length of 300 [mu]m and no floating dosinia laminata larva is in water, carrying out running water culture; when the juvenile dosinia laminata has a shell length of 500 to 600 [mu]m, carrying out intermediate culture in the cement pool; and when the shell length reaches 0.5 to 1 cm, spreading the dosinia laminata to a beach for breeding.
Description
Technical field
The present invention relates to a kind of mating system of clam class, particularly a kind of mating system of thin slice mirror clam large size seedling seed.
Background technology
Thin slice mirror clam (Dosinia laminata) is under the jurisdiction of the shellfish of lamellibranchiata (Lamellibranchia), curtain clam order (Veneroida), Veneridae (Veneridae), mirror clam genus (Dosinia), is distributed widely in west of pacific ocean, Japan and coastal area of china.At China coast North gets Liaodong Peninsula, all there is distribution south and Qiongzhou Strait, mainly live in intertidal zone, in the silt substrate of low tidal region.Thin slice mirror clam is commonly called as clam fork, and be the marine shellfish that a kind of economic worth is very high, have the advantages such as dressing percentage is high, meat flavour is delicious, nutritious and deeply like by masses, development potentiality is very large.But because thin slice mirror clam is in China coast distribution dispersion, the reasons such as stock number is few, its economic worth is not yet exploited.
In recent years, due to the continuous deterioration of ocean development and sea area natural environment, the stock number of thin slice mirror clam reduces increasingly.Therefore, set up the artificial breeding method of thin slice mirror clam, for protection thin slice mirror clam natural resources, develop new breed variety significant.Although thin slice mirror clam is widely distributed in China, but there is not report so far about the research that thin slice mirror clam large size seedling seed is cultivated.Therefore, establish the artificial breeding method of thin slice mirror clam large size seedling seed, can for carrying out the propagating artificially of thin slice mirror clam, protecting national resource lays the foundation.
Summary of the invention
The present invention is the above-mentioned deficiency in order to solve existing for prior art, propose a kind ofly to catch wild type by adopt in good time, parent's accelerating, larva obtain with cultivate, collect seedling, juvenile mollusk cultivates and the series of steps such as Transitional culture and the artificial breeding method of thin slice mirror clam that sets up.
Technical solution of the present invention is: a kind of mating system of thin slice mirror clam large size seedling seed, is characterized in that: described mating system is carried out according to following steps:
Adopt from natural waters and catch thin slice mirror clam as parent, and by parent's accelerating in indoor water body, parent's gonad maturity after ejaculation of laying eggs, the diddle-net made with 260 ~ 300 mesh sieve thin,tough silk collects D shape larva, D shape larva is moved in cement pit and carries out larva cultivation, after there is foot and eyespot in the larva of 20-30%, input particle diameter is that the sea sand of 0.2-0.5mm is collected seedling as adherance, when juvenile mollusk is long 300 μm and when not having floating larva in water to shell, carry out running water technology, as juvenile mollusk 500-600 μm long to shell, Transitional culture is carried out in cement pit, when shell reaches 0.5-1cm, thin slice mirror clam is sowed on beach and forms.
Between the 6-7 month, when the water temperature less than 20 DEG C of natural waters, adopt and catch described parent, parent is the individuality of 2-3 age, the long 4-6cm of shell.
In described parent's accelerating process, the initial water temperature in pond is 18 DEG C, throw something and feed Micro Algae and spirulina powder, day full dose changes water 0.5 ~ 1 time, day heats up 0.5 ~ 1.0 DEG C, constant temperature culture after water temperature rises to 22 ~ 23 DEG C, and the gonad maturity situation of observing thin slice mirror clam parent every day.
In described larva cultivation stage, condition of culture is as follows: the salinity 23-25 of breeding water body, water temperature 25-26 DEG C, and larval density 3-5/ml, changing waterside number day is 1-2 time, day quantity of exchanged water 1/3-1/2.
In the described Transitional culture stage, condition of culture is as follows: every day flowing water 1-2 hour, quantity of exchanged water is 2-3 full dose, and cultivating density is 1-2/cm
2, bait is natural bait.
Compared with the existing technology, tool has the following advantages in the present invention:
Mating system disclosed in this invention; catch wild type by adopting in good time, parent's accelerating, larva obtain with cultivate, collect seedling, juvenile mollusk cultivates and the series of steps such as Transitional culture; successfully establish the artificial breeding method of thin slice mirror clam; it can cultivate the large gauge artificial seed of thin slice mirror clam on a large scale; for the artificial breeding of thin slice mirror clam provides the foundation, simultaneously can carrying out the propagating artificially of thin slice mirror clam, to protect national resource etc. in make outstanding contribution.Therefore this mating system possesses multiple advantage, is particularly suitable for applying in the art, and its market prospects are very wide.
Embodiment
The specific embodiment of the present invention will be described below.
A mating system for thin slice mirror clam large size seedling seed, carry out according to following steps:
Gather parent: between the annual 6-7 month, when the water temperature of natural waters is in below 20 DEG C, adopt from natural waters and catch 2-3 age, shell length the thin slice mirror clam of 4-6cm as parent;
Parent's accelerating: by parent transfer in indoor water body, and by parent's accelerating, in the process of parent's accelerating, the initial water temperature in indoor pond is 18 DEG C, to throw something and feed Micro Algae and spirulina powder, day full dose change water 0.5 ~ 1 time, day heats up 0.5 ~ 1.0 DEG C, constant temperature culture after water temperature rises to 22 ~ 23 DEG C, and the gonad maturity situation of observing thin slice mirror clam parent every day;
Obtain larva: treat parent's gonad maturity and after ejaculation of laying eggs, the diddle-net collection D shape larva made from 260 ~ 300 mesh sieve thin,tough silk, then moves to D shape larva in cement pit and carries out larva cultivation;
Larva is cultivated: between larva culture period, the seawater used is through secondary sand filtration process, and its salinity is 23-25, water temperature 25-26 DEG C, larval density 3-5/ml, it is 1-2 time that day changes waterside number, and day quantity of exchanged water 1/3-1/2 is early stage in the cultivation of D shape larva, to throw something and feed lsochrysis zhanjiangensis, later stage adds feeds appropriate flat algae, and to ingest situation determination daily ration, feeding quantity according to larva, day throws something and feeds 2-4 time;
Collect seedling: when embryophore reaches about 180 μm, start to occur eyespot and foot, when occurring that the larva quantity of foot and eyespot reaches 20 ~ 30% of total amount, collecting larva with bolting silk net and cultivating to pond, and throw in particle diameter be the sea sand of 0.2-0.5 mm as adherance, collect seedling; Adopt fine sand to collect seedling as adherance, larva can be allowed in the ins and outs sand of pond to complete settlement and metamorphosis, during larva settlement and metamorphosis, need suitably to strengthen aeration quantity and daily ration, feeding quantity;
Juvenile mollusk is cultivated: form juvenile mollusk after larval metamorphosis, change a water 1-2 full dose every day, through the cultivation of 8-10d, juvenile mollusk shell to be attached reaches 300 μm, and when not having floating larva in water, carries out flowing water cultivation, suitably increases daily ration, feeding quantity simultaneously;
Transitional culture: as juvenile mollusk 500-600 μm long to shell, carry out Transitional culture in cement pit, every day flowing water 1-2 hour, quantity of exchanged water is 2-3 full dose, and cultivating density is 1-2/cm
2, bait is natural bait, carries out Transitional culture in indoor, carries out Transitional culture compared in sea area, and its survival rate can improve more than 80%;
When shell reaches 0.5-1cm, thin slice mirror clam is sowed on beach and forms.
Claims (5)
1. a mating system for thin slice mirror clam large size seedling seed, is characterized in that: described mating system is carried out according to following steps:
Adopt from natural waters and catch thin slice mirror clam as parent, and by parent's accelerating in indoor water body, parent's gonad maturity after ejaculation of laying eggs, the diddle-net made with 260 ~ 300 mesh sieve thin,tough silk collects D shape larva, D shape larva is moved in cement pit and carries out larva cultivation, after there is foot and eyespot in the larva of 20-30%, input particle diameter is that the sea sand of 0.2-0.5mm is collected seedling as adherance, when juvenile mollusk is not to the long 300mm of shell and when having floating larva in water, carry out running water technology, as juvenile mollusk 500-600mm long to shell, Transitional culture is carried out in cement pit, when shell reaches 0.5-1cm, thin slice mirror clam is sowed on beach and forms.
2. the mating system of thin slice mirror clam large size seedling seed according to claim 1, is characterized in that: between the 6-7 month, when the water temperature less than 20 DEG C of natural waters, adopted and caught described parent, and parent is the individuality of 2-3 age, the long 4-6cm of shell.
3. the mating system of thin slice mirror clam large size seedling seed according to claim 1, it is characterized in that: in described parent's accelerating process, the initial water temperature in pond is 18 DEG C, to throw something and feed Micro Algae and spirulina powder, day full dose changes water 0.5 ~ 1 time, day heats up 0.5 ~ 1.0 DEG C, constant temperature culture after water temperature rises to 22 ~ 23 DEG C, and the gonad maturity situation of observing thin slice mirror clam parent every day.
4. the mating system of thin slice mirror clam large size seedling seed according to claim 1, it is characterized in that: in described larva cultivation stage, condition of culture is as follows: the salinity 23-25 of breeding water body, water temperature 25-26 DEG C, larval density 3-5/ml, it is 1-2 time that day changes waterside number, day quantity of exchanged water 1/3-1/2.
5. the mating system of thin slice mirror clam large size seedling seed according to claim 1, is characterized in that: in the described Transitional culture stage, condition of culture is as follows: every day flowing water 1-2 hour, quantity of exchanged water is 2-3 full dose, and cultivating density is 1-2/cm
2, bait is natural bait.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510403521.6A CN104982364A (en) | 2015-07-12 | 2015-07-12 | Breeding method for large-size dosinia laminata spats |
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| CN201510403521.6A CN104982364A (en) | 2015-07-12 | 2015-07-12 | Breeding method for large-size dosinia laminata spats |
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| CN201510403521.6A Pending CN104982364A (en) | 2015-07-12 | 2015-07-12 | Breeding method for large-size dosinia laminata spats |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111670847A (en) * | 2020-07-09 | 2020-09-18 | 大连海洋大学 | Artificial cultivation method for large-specification autumn seedlings of Japanese sea clam |
-
2015
- 2015-07-12 CN CN201510403521.6A patent/CN104982364A/en active Pending
Non-Patent Citations (3)
| Title |
|---|
| 刘相全 等: "中国沿海帘蛤科贝类主要经济种育苗与养殖技术研究进展", 《动物学杂志》 * |
| 无: "文蛤"科浙1号"", 《中国水产》 * |
| 王海涛 等: "薄片镜蛤室内人工育苗技术研究", 《齐鲁渔业》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111670847A (en) * | 2020-07-09 | 2020-09-18 | 大连海洋大学 | Artificial cultivation method for large-specification autumn seedlings of Japanese sea clam |
| CN111670847B (en) * | 2020-07-09 | 2022-07-15 | 大连海洋大学 | Artificial cultivation method for autumn large-size offspring seeds of Japanese sea clam |
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Application publication date: 20151021 |