CN102293172B - Navodon septentrionalis spawning site and ovum harvesting method - Google Patents
Navodon septentrionalis spawning site and ovum harvesting method Download PDFInfo
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- CN102293172B CN102293172B CN2011101847276A CN201110184727A CN102293172B CN 102293172 B CN102293172 B CN 102293172B CN 2011101847276 A CN2011101847276 A CN 2011101847276A CN 201110184727 A CN201110184727 A CN 201110184727A CN 102293172 B CN102293172 B CN 102293172B
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- black scraper
- scraper puffer
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- fin black
- green fin
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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 navodon septentrionalis spawning site and an ovum harvesting method. A spermatovum harvesting device of the navodon septentrionalis spawning site comprises a plastic corrugated sheet which is taken as a base of the device, lead weights or other weights are arranged on four corners of the base of the device, and four pieces of rectangular soft plastic cloths which are mutually staggered are arranged on the base of the device. The device is placed at the bottom of the navodon septentrionalis spawning site, the soft plastic cloths which are sewn and fixed on the device are placed upward, the direction of the soft plastic cloths is vertical toward the direction of water flow, and ova adhered on the plastic corrugated sheet base and the soft plastic cloths are collected after parent fishes spawn. The device can simulate condition of the navodon septentrionalis spawning site in natural sea area, an environment which is more familiar and adaptive to the parent fishes is formed, the parent fishes can be shielded, and stress response in a parent fish rearing process is reduced, thus being more convenient for the mating and spawning of the parent fishes.
Description
Technical field
The present invention relates to cultivation place and the method for a kind of fish, be specifically related to a kind of green fin black scraper Puffer spawning ground and ovum collecting method.
Background technology
Green fin black scraper Puffer Thamnaconus modestus belongs to Tetraodontiformes Tetraodontiformes, the Monacanthus Monacanthidae of section, and the black scraper Puffer belongs to Thamnaconus, is commonly called as black scraper, bread fish, the fish that strips off the skin, the wolf etc. that strips off the skin, English name Drab filefish.Green fin black scraper Puffer belongs to the warm warm type demersal fishes in off-lying sea, is distributed in Bohai and Yellow Seas, the East Sea, the Korea peninsula and the sea of Japan of Pacific Northwest.The 1960's～1980, green fin black scraper Puffer catch is very high, and what began to become China East Sea in 1974 mainly fishes for one of object, and the 1980's China green fin black scraper Puffer annual catch can break through 300,000 tons sometimes, but long-term overfishing causes the stock number degradation, and the market price rises gradually.
In the artificial breeding process of green fin black scraper Puffer, the quantity of the fertilized egg that can obtain directly determines the quantity of prelarva, affects thereby become one of the principal element of success or failure of growing seedlings.Green fin black scraper Puffer fertilized egg is spheroidal viscosity anisolecithal egg, by the mucous membrane on ovum surface and haircuts with its adhesion, be fixed on other object, egg membrane is thick, reticulate pattern is densely covered, ovum footpath 0.59～0.63mm, yolk homogeneous transparent, heavy wool ball.Because green fin black scraper Puffer ovum individuality is very little, be difficult for to observe in spawning pond, and have larger stickiness, break away from hardly after being attached to very soon the surface of some objects after external by output, rather than drift with the tide as buoyant egg, float on the upper strata of water.At occurring in nature, the fertilized egg of green fin black scraper Puffer is attached to the surface of reef, coral, shell, algae etc. more.
In the artificial breeding process, need to concentrate to obtain a large amount of fertilized eggs for hatching, take into account the portable degree of economy and operation, therefore can't use fertilized egg adherance such as reef, the coral etc. of occurring in nature.
Present green fin black scraper Puffer parent fish rearing pond, almost completely the same with common culturing pool, be circle or rectangle, smooth without veil at the bottom of the pond.Green fin black scraper Puffer is migration fishes, and the spawning ground is for being distributed with the object gravel substrate such as algae, shell, coral reef marine site, and existing parent fish rearing pond does not possess similar feature fully.
The method of gathering at present green fin black scraper Puffer fertilized egg is mainly at the bottom of the plastic corrugated sheet that will originally be used for breading sea cucumber seedlings intersperses among the pond in green fin black scraper Puffer parent fish rearing pond, after Gunther parent fish spawning, can have the partial fertilization ovum to adhere on plastic corrugated sheet.And, because plastic corrugated sheet density is less, at the bottom of being not easy to be fixed in pond, parent fish rearing pond, very easily be overlapped in a corner in the pond by water impact.
The shortcoming of the method is, because plastic corrugated sheet is difficult for fixing, easily formed overlapping by water impact, and the surface area of corrugated plating is less, less with the contact area of current, thereby the fertilized egg quantity of using it to gather is relatively less, and most of ovums can not be collected, and can't form great waste for artificial breeding.
Therefore, simulate the similar environment in a kind of and green spawning ground of fin black scraper Puffer in natural water area, can make the parent population sensation be familiar with, reduce stress reaction, and help green fin black scraper Puffer fertilized egg to adhere in a large number, and low price, easy to operate fertilized egg adhere to, harvesting technique, are very necessary.
Summary of the invention
The objective of the invention is for the deficiencies in the prior art, a kind of green fin black scraper Puffer spawning ground and ovum collecting method are provided, overcome the fertilized egg quantity of gathering in prior art relatively less, the problem that most of ovums can not be collected.
The objective of the invention is to realize by following technological means: a kind of green fin black scraper Puffer spawning ground, comprise green fin black scraper Puffer fertilized egg recovering device, described green fin black scraper Puffer fertilized egg recovering device comprises that a plastic corrugated sheet is as the device pedestal, be provided with plummet or other weight on described device pedestal four angles, interwoven on the device pedestal have four rectangle soft plastic cloths.
The square plastic corrugated plating that described device pedestal is length of side 50cm.
Described soft plastic cloth is the rectangle of 35cm * 50cm, and its minor face is sutured on the plastic corrugated sheet pedestal by the nylon fishing line.
Described soft plastic cloth is brown, maroon, black, bottle green or blue and the corresponding macro color in natural marine site.
Scatter greater than a green fin black scraper Puffer fertilized egg recovering device in described spawning ground.
A kind of gather method of ovum of above-mentioned green fin black scraper Puffer fertilized egg recovering device that adopts, described device is positioned over bottom, green fin black scraper Puffer spawning ground, sewing up fixing soft plastic cloth on device upwards places, the direction of soft plastic cloth is head-on vertical with water (flow) direction, after Gunther parent fish spawning, collect the ovum that adheres on plastic corrugated sheet pedestal and soft plastic cloth.
Compared with prior art the present invention has following obvious advantage: this device has been simulated the situation in medium green fin black scraper Puffer spawning ground, natural marine site in the parent fish rearing pond, the situations such as the compatibile in brown, maroon, black, bottle green or blue soft plastic cloth and the spawning ground of green fin black scraper Puffer in natural marine site, coral, reef are similar, form the environment that parent population comparatively is familiar with, adapts to, for providing, parent population covers, reduce the stress reaction in the parent fish rearing process, help its mate and oviposit; Use the counterweight article such as plummet to fix this device, can avoid this device because of the flow action in the cultivation pond be subjected to displacement, overlapping, be fixed in all the time set position; Use plastic corrugated sheet as the pedestal of device, namely can play the effect of fixture, self also can adhere to, gather ovum; Use method of the present invention to receive ovum, not only adherance is difficult for because water impact is brought together, and owing to having increased soft plastic cloth as free adherance, has greatly improved the adherance surface area, makes to adopt the ovum rate and greatly improve.And the device cost of manufacture that present technique is used is cheap, and very light, convenient operation.
Description of drawings
Fig. 1 is the structural representation of the green fin black scraper of the present invention Puffer fertilized egg recovering device;
Fig. 2 is the vertical view of the green fin black scraper of the present invention Puffer fertilized egg recovering device;
In figure, 1-pedestal, 2-soft plastic cloth, 3-plummet.
Embodiment
The present invention is described in further detail below in conjunction with description of drawings and embodiment:
Green fin black scraper Puffer fertilized egg recovering device as shown in Fig. 1-2, comprise that the square plastic corrugated plating of a length of side 50cm is as device pedestal 1, be provided with plummet 3 or other weight on described device pedestal 1 four angles, the interwoven rectangle soft plastic cloth 2 that four 35cm * 50cm are arranged on device pedestal 1, its minor face is sutured on plastic device pedestal 1 by the nylon fishing line.Soft plastic cloth is brown, maroon, black, bottle green or blue and the corresponding macro color in natural marine site.A plurality of green fin black scraper Puffer fertilized egg recovering devices are scattered in the spawning ground.
When gathering ovum, recovering device is positioned over bottom, green fin black scraper Puffer spawning ground, sews up fixing soft plastic cloth on device and upwards place, the direction of soft plastic cloth is head-on vertical with water (flow) direction, after Gunther parent fish spawning, collect the ovum that adheres on device pedestal 1 and soft plastic cloth 2.
Embodiment:
6～August in 2009, in the process of green fin black scraper Puffer artificial breeding is carried out in the Yantai, Shandong Province Longkou City, initial hollow concrete block, common brick, stone, cement floor tile, the ceramic tiles etc. of using are as the egg attachment base, effect is relatively poor, hollow concrete block, common brick, stone, cement floor tile almost do not have egg attachment, the light face of ceramic tile has a small amount of egg attachment, but inconvenient operation, in operation, ceramic tile is very easily broken.
In the green fin black scraper Puffer artificial breeding in June, 2010, test uses nylon mesh sheet, soft plastic cloth, plastic corrugated sheet, plank etc. as the egg attachment base, the effect that found that plastic corrugated sheet and soft plastic cloth is all relatively good, the adherances that adopt plastic corrugated sheets to gather as ovum afterwards more, compare with using ceramic tile, plastic corrugated sheet has obviously improved the ovum recovery ratio.
Mid-July in the same year, device and technology that beginning advance copy invention comprises are simulated green fin black scraper Puffer Gunther parent fish spawning field environment, and are carried out gathering of fertilized egg.Concrete test is, uses 4 identical parent fish rearing ponds to compare, cultivation pool area 25m
2(the square cement pit of length of side 5m) at the bottom of domatic, has drainage and inflation facility, and each cultivates pool cultivated green fin black scraper Puffer parent population 60 tails left and right, cultivates water temperature, periodicity of illumination, bait throwing in, to change the control measures such as water identical.Wherein cultivate the pond and use corrugated plating as the fertilized egg adherance of gathering for 2, cultivate the pond for 2 and use method and apparatus of the present invention, the environment in spawning ground, simulating nature marine site is provided for parent population, and use this device fertilized egg of gathering.Continuous comparison through 11 days by a definite date, use 2 parent fish rearing ponds of the inventive method, gather altogether 1,170,000 pieces, green fin black scraper Puffer fertilized egg, use plastic corrugated sheet as 2 parent fish rearing ponds of egg attachment base, gather altogether 290,000 pieces, green fin black scraper Puffer fertilized egg, using the green fin black scraper Puffer fertilized egg quantity of parent fish rearing pond acquisition of technical method of the present invention to be significantly higher than the corrugated plating adherance, is approximately its 4 times, and namely efficient has improved 300%.
In production after above-mentioned comparative trial, all adopt the technology of this patent and device to cultivate green fin black scraper Puffer parent population and the fertilized egg of gathering, obtain then green fin black scraper Puffer fertilized egg and surpass 3,700,000 pieces, obtained on the whole good effect.
The above; be only a part of embodiment of the present invention, protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement are within section should be encompassed in protection scope of the present invention.
Claims (6)
1. green fin black scraper Puffer spawning ground, comprise green fin black scraper Puffer fertilized egg recovering device, it is characterized in that: described green fin black scraper Puffer fertilized egg recovering device comprises that a plastic corrugated sheet is as the device pedestal, be provided with plummet or other weight on described device pedestal four angles, interwoven on the device pedestal have four rectangle soft plastic cloths.
2. a kind of green fin black scraper Puffer according to claim 1 spawning ground, is characterized in that: the square plastic corrugated plating that described device pedestal is length of side 50cm.
3. a kind of green fin black scraper Puffer according to claim 1 spawning ground, it is characterized in that: described soft plastic cloth is the rectangle of 35cm * 50cm, and its minor face is sutured on the device pedestal by the nylon fishing line.
4. a kind of green fin black scraper Puffer according to claim 1 spawning ground, it is characterized in that: described soft plastic cloth is brown, maroon, black, bottle green, blueness, perhaps with the corresponding color of the medium-and-large-sized marine alga color in natural marine site.
5. a kind of green fin black scraper Puffer according to claim 1 spawning ground, it is characterized in that: scatter greater than a green fin black scraper Puffer fertilized egg recovering device in described spawning ground.
6. one kind is adopted the gather method of ovum of the described green fin black scraper Puffer fertilized egg recovering device of any claim of claim 1-5, it is characterized in that: described device is positioned over bottom, green fin black scraper Puffer spawning ground, sewing up fixing soft plastic cloth on device upwards places, the direction of soft plastic cloth is head-on vertical with water (flow) direction, after Gunther parent fish spawning, collect the ovum that adheres on device pedestal and soft plastic cloth.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101847276A CN102293172B (en) | 2011-07-04 | 2011-07-04 | Navodon septentrionalis spawning site and ovum harvesting method |
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| CN2011101847276A CN102293172B (en) | 2011-07-04 | 2011-07-04 | Navodon septentrionalis spawning site and ovum harvesting method |
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| CN102293172B true CN102293172B (en) | 2013-05-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102870722B (en) * | 2012-11-02 | 2013-11-13 | 海阳市黄海水产有限公司 | Large scale larva breeding method for navodon septentrionalis |
| CN105409858B (en) * | 2015-12-17 | 2017-10-20 | 天津渤海水产研究所 | For flounder and the servicing unit of the smart ovum collection of tongue sole class parent population |
| CN110074023B (en) * | 2019-06-05 | 2020-12-29 | 中国水产科学研究院黄海水产研究所 | Navodon septentrionalis fry breeding method |
Citations (2)
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| CN201054925Y (en) * | 2007-04-28 | 2008-05-07 | 大连水产学院 | Adjustable inclined plugging plate type reef cage for pool holothurian cultivation |
| CN201821754U (en) * | 2010-09-25 | 2011-05-11 | 中国海洋大学 | Optimized adhering substance for sea cucumber seedling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1075683A (en) * | 1996-09-04 | 1998-03-24 | Tadashi Sato | Artificial spawning reef for arctoscopus japonicus |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054925Y (en) * | 2007-04-28 | 2008-05-07 | 大连水产学院 | Adjustable inclined plugging plate type reef cage for pool holothurian cultivation |
| CN201821754U (en) * | 2010-09-25 | 2011-05-11 | 中国海洋大学 | Optimized adhering substance for sea cucumber seedling |
Non-Patent Citations (8)
| Title |
|---|
| マナマコ種苗の成長におよぼす飼育密度の影響;畑中宏之;《水産増殖》;19960620;第44卷(第2期);第142页第一栏第12-14行 * |
| 孟宪菊等.绿鳍马面鲀的生物学特性及人工养殖前景.《齐鲁渔业》.2009,第26卷(第6期),全文. |
| 林培振.池塘编织布造礁海参养殖技术.《中国水产》.2007,第383卷(第10期),第49页第二栏第1-10行、第19-20行. |
| 林培振.池塘编织布造礁海参养殖技术.《中国水产》.2007,第383卷(第10期),第49页第二栏第1-10行及第三栏第21-26行. |
| 池塘编织布造礁海参养殖技术;林培振;《中国水产》;20071031;第383卷(第10期);第49页第二栏第1-10行、第19-20行 * |
| 池塘编织布造礁海参养殖技术;林培振;《中国水产》;20071031;第383卷(第10期);第49页第二栏第1-10行及第三栏第21-26行 * |
| 畑中宏之.マナマコ種苗の成長におよぼす飼育密度の影響.《水産増殖》.1996,第44卷(第2期),第142页第一栏第12-14行. |
| 绿鳍马面鲀的生物学特性及人工养殖前景;孟宪菊等;《齐鲁渔业》;20090630;第26卷(第6期);全文 * |
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