CN108575931A - The catching method of razor shell children shellfish in a kind of nursery pond - Google Patents
The catching method of razor shell children shellfish in a kind of nursery pond Download PDFInfo
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- CN108575931A CN108575931A CN201810414073.3A CN201810414073A CN108575931A CN 108575931 A CN108575931 A CN 108575931A CN 201810414073 A CN201810414073 A CN 201810414073A CN 108575931 A CN108575931 A CN 108575931A
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- shellfish
- trawlnet
- razor
- razor shell
- nursery pond
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K80/00—Harvesting oysters, mussels, sponges or the like
Abstract
The present invention relates to a kind of catching methods of razor shell children shellfish in nursery pond, belong to technical field of aquaculture.Catching method of the present invention includes the following steps：Control nursery pond water level：By water level control in the nursery pond for preparing capture razor shell children shellfish in 1 1.5m；The trawlnet of different meshes is selected to capture the razor shell children shellfish of different size：10 mesh trawlnets are selected when the razor shell children shellfish of the long 1cm or more of capture shell；Capture shell selects 20 mesh trawlnets when growing the razor shell children shellfish of 0.7 1cm；Capture shell selects 40 mesh trawlnets when growing the razor shell children shellfish of 0.5 0.7cm；Trawlnet captures razor shell children shellfish：The trawlnet time 20 up to next day 4 when.Catching method of the present invention fishes for razor shell children shellfish using the suitable trawlnet of mesh in nursery pond, the razor shell children shellfish that the individual obtained is uniform specification, Burden-Swimming Ability of KM is strong, vigor is good.
Description
Technical field
The present invention relates to a kind of catching methods of razor shell children shellfish in nursery pond, belong to technical field of aquaculture.
Background technology
Razor shell (Solen grandis) is under the jurisdiction of Mollusca (Mollusca), Bivalvia (Bivavalvia), different
Tooth subclass (Heterodonta), curtain clam mesh (Veneroida), razor clam section (Solenidae), razor clam category (Solen), China,
The states such as Philippine, Thailand, Japan, Korea, South Korea coastal area is distributed.Razor shell meat tenderness is delicious, rich in protein,
It is the higher precious marine product of nutritive value, has that the speed of growth is fast, have a very wide distribution, is adaptable, economic value is high, market is latent
The advantages that power is huge is one of the principal item of the important economic shellfish in China and shellfish enhancement releasing.In recent years due to catching
It is excessive to drag for intensity, the decline of China coast razor shell resource is serious, and the artificial breeding technique of razor shell is gradually promoted.In big bamboo
During razor clam nursery, move pond, the operations such as outbound be required for razor shell is young, young shellfish is quick, low damage, uniform specification capture side
Method.Currently, the domestic method for having young, the young shellfish capture of some razor shells is still advised by young, the young shellfish of these methods capture
Lattice are not equal, impurity is more, the death rate is higher.
Such as：Chinese Patent Application No. be CN201410307634.1 elaborate one kind bury dwell shellfish in the thin frangible juvenile mollusk of shell
Breeding method, this method refer to using special polythene net to juvenile mollusk carry out move pond measure can not be to the specification of juvenile mollusk
It is screened, and such as vigor is poor, even dead juvenile mollusk or glass can be remained on the net cage bottom polyethylene sieve
The impurity such as ascidian can be mixed into new pond with pond process is moved；Chinese Patent Application No. is that CN201320352380.6 elaborates one kind
The method being acquired to razor shell juvenile mollusk using the T-shaped siphon emergence device of razor shell juvenile mollusk, disadvantage is the siphon of emergence device
Area is smaller, time-consuming and laborious to the razor shell juvenile mollusk acquisition in larger nursery pond, juvenile mollusk is will also result in siphonic process absconds and lead
It causes juvenile mollusk acquisition incomplete, equally also can not effectively remove the impurity etc. more than strainer mesh；And traditional sieve seedling mode (mud
Husky, shellfish mixes, and seedling is sieved using the sieve of different meshes) razor shell mechanical damage can be caused, the higher death rate is caused,
The death rate is generally in 20-30%.
Invention content
The present invention is inhabited in sand daytime using razor shell, and night dives out Shamian Island, and the characteristic of diving, educates indoors in water
Miao Chizhong, in the specific time, uses the razor shell children of different mesh trawlnet fast Acquisition different sizes by controlling water level
Shellfish solves the problems, such as that existing method capture razor shell children shellfish specification does not wait, impurity is more, the death rate is high.
The present invention provides a kind of catching method of razor shell children shellfish in nursery pond, the catching method includes following step
Suddenly：
Control nursery pond water level：
By water level control in the nursery pond for preparing capture razor shell children shellfish in 1-1.5m；
The trawlnet of different meshes is selected to capture the razor shell children shellfish of different size：
10 mesh trawlnets are selected when the razor shell children shellfish of the long 1cm or more of capture shell；
20 mesh trawlnets are selected when the razor shell children shellfish of the long 0.7-1cm of capture shell；
40 mesh trawlnets are selected when the razor shell children shellfish of the long 0.5-0.7cm of capture shell；
Trawlnet captures razor shell children shellfish：
The trawlnet time 20 up to next day 4 when.
If nursery pond water level is too low, razor shell children shellfish, which easily escapes, bores sand；If nursery pond water level is excessively high, it is unfavorable for catching
Operation；Nursery pond water level control of the present invention is conducive to trawlnet operation in 1-1.5m, and razor shell children shellfish is not easy to escape, catch
Obtain rate height.
Different size of the present invention according to capture razor shell children shellfish selects different trawlnets, can be by razor shell in nursery pond
Young shellfish is descending to be captured successively.
The trawlnet time of the present invention is razor shell children's shellfish diving most frequent time.
The present invention is preferably that the control nursery pond water level step is：Daytime will prepare to capture after the latent sand of razor shell children shellfish
Water level control is in 1-1.5m in the nursery pond of razor shell children shellfish.
The present invention is preferably that trawlnet capture razor shell children's shellfish step is：0.5h is protected from light before trawlnet, is removed in nursery pond
Oxygen replenishing equipment, the trawlnet time 20 up to next day 4 when.
It is of the present invention to be protected from light, remove the diving rate that oxygen replenishing equipment in nursery pond helps to improve razor shell children shellfish.
The present invention is preferably that trawlnet capture razor shell children's shellfish step is：0.5h is protected from light before trawlnet, is removed in nursery pond
Oxygen replenishing equipment, the trawlnet time 20 up to next day 4 when, a trawlnet is completed in 2min.
The present invention is preferably that trawlnet capture razor shell children's shellfish step is：0.5h is protected from light before trawlnet, is removed in nursery pond
Oxygen replenishing equipment, the trawlnet time 20 up to next day 4 when, a trawlnet, each trawlnet interval 0.5-1h are completed in 2min.
When trawlnet of the present invention, keep quickly, at the uniform velocity, each trawlnet can catch 90% diving razor shell children shellfish.
It is of the present invention interval trawlnet purpose be：To restore the diving rate of razor shell children shellfish, nursery pond before each trawlnet
The diving rate of interior razor shell children shellfish accounts for 15-20%.
The present invention has the beneficial effect that：
1. catching method of the present invention reduces mechanical damage caused by conventional screen seedling-growing method, by the death rate from 20-
30% is down to 5% or less；
2. catching method of the present invention fishes for razor shell children shellfish using the suitable trawlnet of mesh in nursery pond, obtained
Individual be uniform specification, the razor shell children shellfish that Burden-Swimming Ability of KM is strong, vigor is good；
3. undope the impurity such as sky shell, Ciona in the razor shell children shellfish of catching method capture of the present invention.
Specific implementation mode
Following non-limiting embodiments can make those skilled in the art be more fully understood the present invention, but not with
Any mode limits the present invention.
Embodiment 1
The catching method of razor shell children shellfish, the catching method include the following steps in a kind of nursery pond：
Control nursery pond water level：
Nursery pond water body 25.46m3, silt 1.5cm, 24-26 DEG C of water temperature, salinity 24-27, pH 8.0-8.2, average shell is long
The razor shell children shellfish 6,000,000 of 0.5cm, density is big, need to move pond, will prepare daytime to capture razor shell after the latent sand of razor shell children shellfish
Water level control is in 1.2m in the nursery pond of young shellfish；
Different trawlnets are selected according to the different size of capture razor shell children shellfish：
40 mesh trawlnets are selected when the razor shell children shellfish of the long 0.5-0.7cm of capture shell；
Trawlnet captures razor shell children shellfish：
When 20,21,22 when, 23 when carry out No. 4 trawlnets, 0.5h is protected from light before trawlnet, removes oxygenation in nursery pond
Equipment, 2min is interior to complete a trawlnet, calculates quantity of the catch after each trawlnet, and the razor shell children shellfish of capture is moved into new nursery
The quantity in pond, 4 capture razor shell children shellfishes is followed successively by 1,000,000,760,000,640,000,510,000.
The latent husky rate that observation moves into the razor shell children shellfish in new pond when next day 8 is 98%.
Embodiment 2
The catching method of razor shell children shellfish, the catching method include the following steps in a kind of nursery pond：
Control nursery pond water level：
Nursery pond water body 26.60m3, silt 1.5cm, 25-27 DEG C of water temperature, salinity 24-27, pH 8.0-8.2, average shell is long
Razor shell children's shellfish outbound of the long 1cm or more of shell need to be waited for razor shell children shellfish latent sand daytime by the razor shell children shellfish 4,500,000 of 1.2cm
Afterwards by water level control in the nursery pond for preparing capture razor shell children shellfish in 1.2m；
Different trawlnets are selected according to the different size of capture razor shell children shellfish：
10 mesh trawlnets are selected when the razor shell children shellfish of the long 1cm or more of capture shell；
Trawlnet captures razor shell children shellfish：
40 divide when 2,3 when 20 divide, 4 when carry out No. 3 trawlnets, 0.5h is protected from light before trawlnet, removes oxygenation in nursery pond
Equipment, 2min is interior to complete a trawlnet, and quantity of the catch is calculated after each trawlnet, and the quantity of 3 capture razor shell children shellfishes is followed successively by 80
Wan Li, 580,000,440,000, the long 1cm of shell razor shell children shellfishes below continue to stay in cultivation in nursery pond.
Claims (5)
1. the catching method of razor shell children shellfish in a kind of nursery pond, it is characterised in that：The catching method includes the following steps：
Control nursery pond water level：
By water level control in the nursery pond for preparing capture razor shell children shellfish in 1-1.5m；
The trawlnet of different meshes is selected to capture the razor shell children shellfish of different size：
10 mesh trawlnets are selected when the razor shell children shellfish of the long 1cm or more of capture shell；
20 mesh trawlnets are selected when the razor shell children shellfish of the long 0.7-1cm of capture shell；
40 mesh trawlnets are selected when the razor shell children shellfish of the long 0.5-0.7cm of capture shell；
Trawlnet captures razor shell children shellfish：
The trawlnet time 20 up to next day 4 when.
2. catching method according to claim 1, it is characterised in that：The control nursery pond water level step is：Daytime waits for
By water level control in the nursery pond for preparing capture razor shell children shellfish in 1-1.5m after the latent sand of razor shell children shellfish.
3. catching method according to claim 2, it is characterised in that：The trawlnet captures razor shell children's shellfish step：It drags
Net before 0.5h be protected from light, remove nursery pond in oxygen replenishing equipment, the trawlnet time 20 up to next day 4 when.
4. catching method according to claim 3, it is characterised in that：The trawlnet captures razor shell children's shellfish step：It drags
0.5h is protected from light before net, removes oxygen replenishing equipment in nursery pond, the trawlnet time 20 up to next day 4 when, a trawlnet is completed in 2min.
5. catching method according to claim 4, it is characterised in that：The trawlnet captures razor shell children's shellfish step：It drags
0.5h is protected from light before net, removes oxygen replenishing equipment in nursery pond, the trawlnet time 20 up to next day 4 when, a trawlnet is completed in 2min,
Each trawlnet interval 0.5-1h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414073.3A CN108575931B (en) | 2018-05-03 | 2018-05-03 | Method for capturing juvenile Solen grandis in nursery pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810414073.3A CN108575931B (en) | 2018-05-03 | 2018-05-03 | Method for capturing juvenile Solen grandis in nursery pond |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108575931A true CN108575931A (en) | 2018-09-28 |
| CN108575931B CN108575931B (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810414073.3A Active CN108575931B (en) | 2018-05-03 | 2018-05-03 | Method for capturing juvenile Solen grandis in nursery pond |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336108A (en) * | 2000-07-31 | 2002-02-20 | 山东省日照市水产研究所 | Artificial method for breeding giant razor cham |
| CN101606496A (en) * | 2009-07-13 | 2009-12-23 | 大连獐子岛渔业集团股份有限公司 | Japanese scallop sea area breeding method |
| CN201393479Y (en) * | 2009-04-10 | 2010-02-03 | 中国海洋大学 | Trail net for shellfish seedling culture and tank transfer |
| CN102017920A (en) * | 2010-11-05 | 2011-04-20 | 大连獐子岛渔业集团股份有限公司 | Method for collecting indoors cultivated natural patinopecten yesoensis larvae by trawling |
| CN102106272A (en) * | 2010-12-30 | 2011-06-29 | 山东海益宝水产股份有限公司 | Seedlings-cultivating method of atrina pectinata |
| CN103168733A (en) * | 2013-04-15 | 2013-06-26 | 蓬莱市天保海水养殖有限公司 | Patinopecten yessoensis seedling culturing method |
-
2018
- 2018-05-03 CN CN201810414073.3A patent/CN108575931B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1336108A (en) * | 2000-07-31 | 2002-02-20 | 山东省日照市水产研究所 | Artificial method for breeding giant razor cham |
| CN201393479Y (en) * | 2009-04-10 | 2010-02-03 | 中国海洋大学 | Trail net for shellfish seedling culture and tank transfer |
| CN101606496A (en) * | 2009-07-13 | 2009-12-23 | 大连獐子岛渔业集团股份有限公司 | Japanese scallop sea area breeding method |
| CN102017920A (en) * | 2010-11-05 | 2011-04-20 | 大连獐子岛渔业集团股份有限公司 | Method for collecting indoors cultivated natural patinopecten yesoensis larvae by trawling |
| CN102106272A (en) * | 2010-12-30 | 2011-06-29 | 山东海益宝水产股份有限公司 | Seedlings-cultivating method of atrina pectinata |
| CN103168733A (en) * | 2013-04-15 | 2013-06-26 | 蓬莱市天保海水养殖有限公司 | Patinopecten yessoensis seedling culturing method |
Non-Patent Citations (2)
| Title |
|---|
| 任福海: "大竹蛏人工繁育与中间育成技术", 《河北渔业》 * |
| 王海涛: "虾夷扇贝育苗综合技术", 《中国水产》 * |
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