CN205124719U - Big six long cobbles adherance of laying eggs - Google Patents
Big six long cobbles adherance of laying eggs Download PDFInfo
- Publication number
- CN205124719U CN205124719U CN201520978118.1U CN201520978118U CN205124719U CN 205124719 U CN205124719 U CN 205124719U CN 201520978118 U CN201520978118 U CN 201520978118U CN 205124719 U CN205124719 U CN 205124719U
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- ovum
- adherance
- plate
- hold
- fixing axis
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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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- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model discloses a big six long cobbles adherance of laying eggs, including bottom plate (1), bottom plate (1) middle part is equipped with fixed axis (6), it holds ovum board (2) to be equipped with on fixed axis (6), it is 10~70 with bottom plate (1) contained angle to hold ovum board (2), it is equipped with pocket (9) on ovum board (2) to hold. The adherance from this builded can the big six long cobble roes of effectual increase adhere to rate, the embryonated egg of improving the ovum, incubation rate and survival rate, space safe is relatively provided for the parent population simultaneously to what promote the parent population protects the ovum effect. Adherance stable in structure, simple manufacture, the material is easy, and is with low costs, forked open structure simultaneously, it is little to meet flow resistance power, and the area of hatching is big, can becoming any injury, not accord with laying eggs and protecting the ovum habit of six cobbles to the parent of laying eggs.
Description
Technical field
The utility model relates to a kind of adherance, is specifically related to a kind of greenling and lays eggs adherance.
Background technology
Greenling has another name called Hexagrammos otakii, Greenling, is commonly called as yellow croaker, belongs to Rockfish shape order, Greenling section, Greenling belongs to, and is cold warm nature coastal waters bottom rocky fishes.Mainly be distributed in Yellow Sea of China and the Bohai Sea, also see all seas of Korea, Japan and Russian Far East.This fish is low temperature resistant, survival temperature 2 ~ 26 DEG C, is grown on many cays sea area, coastal waters on the ground such as LiaoNing, China, Shandong.Its fine and tender taste, delicious flavour, have the title of " northern lithosporic ", economic worth is higher, deeply favors by consumers in general and culturist.Greenling is the desirable class of north of China cage culture, is also to carry out fish stock increasing release and develop the desirable kind that trip fishes fishery, has wide promotion prospect as the peculiar famous and precious seawater fish in the north.
In recent years, owing to reclaiming land from the sea and being growing on and on of fishery catching intensity in the construction of coastal waters and riverine area massive discharge of pollutant, some water projects, large-area lake of enclosing, the fishery resources slump of disastrous proportions in coastal waters and some waters, inland is made.Natural water area Greenling quantity falls sharply, and causes the Greenling market price to improve constantly, and the amount of fishing of coastal fisherman to Greenling strengthens gradually, and catch body is long to be reduced year by year, and resource pressure is increasing.The recovery of simple dependence resource self can not repair impaired Greenling resource, and enhancement releasing and input artificial fish shelter, the intervention of setting up the artificial strength such as protection zone, become the effective means that Greenling resource is repaired and increased.Fully holding on the basis of marine environment conditions and environment capacity, selecting suitable adherance to throw in, is the major way carrying out spawning ground reparation.
Greenling fish-egg is comparatively large, ovum footpath 1.6 ~ 2.3mm, and parent population fish brood amount is low, and belong to adhesive egg, under nature, the ovum grain of after fertilization sticks together mutually agglomerating, and the ovum of pieces of an egg inside can be affected in various degree because of anoxic, and incubation rate only has about 20%.In natural waters, greenling fecund ovum, in liver moss and reef surface, becomes flat pieces of an egg, can be laid on spawning base.Natural spawning base, due to the uncertainty of shape and structure, can condense into block rapidly after the fish-egg produced on surface meets seawater in 10min, and internal layer fish-egg the time of fertilization essence ovum contact rate is little, thus causes fertility rate and hatchability all lower.For greenling, after raun lays eggs, milter protects ovum near spawning base until the hatching of ovum grain, the protection of milter to spawning base has certain selectivity, therefore design is a kind of is applicable to Greenling egg attachment, protect the hidden novel adherance of ovum for milter provides, to improve Greenling ovum fertilization rate, incubation rate and survival rate simultaneously.The shape of spawning base is a key factor of Selection of fishes, and when ovum originates on unaccommodated spawning base by fish, be easy to peel off from spawning base before the hatching of ovum grain, the pieces of an egg of stripping can not get the nurse of milter, are easy to prey predation.Mostly the construction of artificial adherance is at present extensive style, namely directly to the waste and old ship of marine input, stone and the adherance of concrete reef as near sea fishes making simple shape, do not consider the characteristic of different ovum and the behaviors and habits of parent population, particularly the requirement of adhesive egg to spawning base is higher, is therefore stable and expansion greenling spawning ground, promotes greenling cultivation effect, need development environment friendly adherance badly, increase the resource magnitude of recruitment of tack Greenling ovum.
Utility model content
The purpose of this utility model is to provide a kind of greenling and lays eggs adherance, to make up the above-mentioned deficiency of prior art.This adherance manufacturing cost is low and durable in use, and meanwhile, it is less that adherance meets flow resistance, and area of hatching is large, is applicable to the nearshore waters that stormy waves is less.
A kind of greenling is laid eggs adherance, and comprise base plate (1), described base plate (1) middle part is provided with fixing axis (6); Described fixing axis (6) is provided with holds ovum plate (2), described in hold ovum plate (2) and base plate (1) angle be 10 ~ 70 °; Be preferably 60 °.The described ovum plate (2) that holds is provided with mesh bag (9).
Further, in technique scheme, the shape of fixing axis can be square, and rhombus is circular.
Further, in technique scheme, described in hold ovum plate (2) and base plate (1) angle be 30 ~ 60 °.
Further, in technique scheme, described fixing axis (6) is hollow structure.The design of hollow can reduce the impact of current to this artificial adherance effectively, reduces fluoran stream surface and amasss, simultaneously also for parent of laying eggs provides relatively hidden habitat.
Further, in technique scheme, described fixing axis (6) internal diameter is 30 ~ 100cm.
Further, in technique scheme, described in hold on ovum plate and have multiple circular opening (7) run through.To increase the water penetration of reefs.The diameter of circular opening (7) is 3-20cm.
Further, in technique scheme, described fixing axis is provided with 2-6 and holds ovum plate (2); Describedly hold the both sides that ovum plate (2) symmetry is arranged on fixing axis (6).
Further, in technique scheme, described fixing axis is provided with 4 and holds ovum plate (2), described in hold ovum plate (2) is arranged on fixing axis (6) both sides in fork-shaped symmetry.
Further, in technique scheme, 2 pieces bottom described fixing axis are held ovum plate and are connected with base plate;
Further, in technique scheme, described in hold ovum plate and be provided with hook (8), described mesh bag is fixed on by hook and holds on ovum plate (2).
Further, in technique scheme, the material of described mesh bag (9) is polyethylene material, and described mesh bag is filled with shell in (9).Shell mesh bag improves the water penetration of reefs as the part of adherance, and decrease concrete use, mesh bag constantly swings with current simultaneously, can increase the contact of fish-egg and oxygen.Simple concrete surface is hard and comparatively smooth, and mesh bag has irregular and open surface simultaneously, is more suitable for the attachment of greenling fish-egg.The adherance of surface irregularity can provide more safely to fish-egg and firmly adhere to, and is eaten the predation of ovum fish to reduce it.
Further, in technique scheme, described base plate is solid.Effectively can ensure the stability of this artificial adherance.
Further, in technique scheme, described base plate (1), hold ovum plate (2), fixing axis (6) is armored concrete material.
Utility model beneficial effect
The double verification of greenling adherance of the present utility model flume experiment and marine experiment, effectively can increase the adhesive rate of greenling fish-egg, improve the fertilization rate of ovum, incubation rate and survival rate; Simultaneously for parent population provides comparatively safe space, protect ovum effect with what promote parent population.Adherance Stability Analysis of Structures, make simple, material is easy to get, and cost is low, simultaneously the Open architecture of forked type, to parent of laying eggs in any injury of one-tenth, can not meet laying eggs and protecting ovum habit of Greenling.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model adherance;
Fig. 2 holds ovum plate structure schematic diagram in Fig. 1;
In figure, 1, base plate; 2, ovum plate is held; 6, fixing axis; 7, hole; 8, link up with; 9, mesh bag.
Embodiment
Following nonlimiting examples can make those of ordinary skill in the art's comprehend the utility model, but limits the utility model never in any form.
Embodiment 1
As shown in Figure 1 and Figure 2, a kind of greenling is laid eggs adherance, comprise a reinforced concrete floor 1, four blocks of rectangular armored concrete hold ovum plate 2 and one hold the fixing axis 6 of ovum plate 2 in order to fixing concrete, fixing axis 6 is armored concrete material, hollow, and the design of hollow can reduce the impact of current to this artificial adherance effectively, reduce fluoran stream surface to amass, simultaneously also for parent of laying eggs provides relatively hidden habitat.Rectangle concrete holds the both sides that ovum plate 2 symmetry is arranged on fixing axis 6, in forked type.Base plate 1 is solid, holds ovum plate 2 be connected with lower concrete, effectively can ensure the stability of this artificial adherance.Rectangle concrete holds on ovum plate 2 has multiple circular opening 7, to increase the water penetration of reefs.Its concrete holds ovum plate 2 upper surface corner and is provided with hook 8, and hold ovum plate 2 top in order to fixing concrete and be laid with mesh bag 9 for attachment greenling fish-egg, the material of mesh bag 9 is polyethylene material, is filled with shell in mesh bag 9.The design of loose structure can reduce concrete use effectively, increase the water penetration of reefs, the diversity of fluidised form and the stability of structure, make the current of different directions fully can contact with mesh bag 9 simultaneously, mesh bag 9 constantly flickers with the impact of current, and the fertilized egg being so attached to mesh bag 9 top can obtain sufficient dissolved oxygen.
Reinforced concrete floor 1, specification is length, width and height 160 × 140 × 10cm, and four blocks of rectangular armored concrete hold ovum plate 2, length, width and height 160 × 80 × 10cm and one is held the fixing axis 6 of ovum plate 2 in order to fixing concrete, fixing axis 6 is hollow, and overall diameter is: 80cm, and interior diameter is: 60cm.Rectangle concrete holds the both sides that ovum plate 2 symmetry is arranged on fixing axis 6, and in forked type, angle is respectively 120 ° and 60 °.Base plate 1 is solid, holds ovum plate be connected with lower concrete.Rectangle concrete holds on ovum plate 2 multiple hole 7, and diameter is 10cm.Its concrete holds ovum plate 2 upper surface corner and is provided with hook 8, links up with as steel matter, and hold ovum plate 2 top in order to fixing concrete and be laid with mesh bag 9 for attachment greenling fish-egg, the material of mesh bag 9 is polyethylene material, is filled with shell in mesh bag 9.
Greenling ovum meets water can condense into agglomerate in 10 minutes, lay eggs on more flat surface, ovum can condense into larger pieces of an egg, because pieces of an egg are overlapped, extruding, the dirt such as dead ovum, chorion on pieces of an egg has been covered on ovum, make internal layer ovum corrupt dead because of long term hypoxia, cause incubation rate lower, the ovum fertilization rate of pieces of an egg inside is also lower simultaneously.This forked type adherance is inclined design, greenling raun ovulates on the surface of associated ramp, ovum becomes liquid, can flow downward with inclined-plane, therefore, inclined design better can reduce the stacked number of ovum, makes fish-egg become the sheet of loose arrangement, can increase fertilization rate and the incubation rate of ovum.The simultaneously design of forked type reefs, define and have the space structure blocked more, what be more conducive to parent population protects ovum.Research finds, there is the greenling protecting ovum behavior prefer to perch at the outstanding edge of reef or groove part, to shelter, therefore the design of forked type and the structure of fixing axis 6 hollow add the complexity of adherance, define more to shelter space and perch for parent population.
Research finds, the fish shelter of surface irregularity can provide more safely to fish-egg and firmly adhere to, the predation of ovum fish is eaten to reduce it, and simple concrete surface is hard and comparatively smooth, therefore this artificial adherance adds the design of mesh bag 9, mesh bag 9 has irregular and open surface simultaneously, is more suitable for the attachment of greenling fish-egg.Mesh bag 9 is fixed on the concrete with perforate with hook 8 to be held on ovum plate 2, add the contact area of mesh bag 9 and current, and the activity of mesh bag 9, make the fertilized egg be attached on mesh bag 9 obtain more sufficient oxygen, to increase incubation rate and the survival rate of ovum.
Claims (10)
1. greenling is laid eggs an adherance, it is characterized in that: comprise base plate (1), and described base plate (1) middle part is provided with fixing axis (6); Described fixing axis (6) is provided with holds ovum plate (2), described in hold ovum plate (2) and base plate (1) angle be 10 ~ 70 °; The described ovum plate (2) that holds is provided with mesh bag (9).
2. adherance according to claim 1, is characterized in that: described in hold ovum plate (2) with base plate (1) angle be 30 ~ 60 °.
3. adherance according to claim 1, is characterized in that: described fixing axis (6) is hollow structure.
4. adherance according to claim 3, is characterized in that: described fixing axis (6) internal diameter is 30 ~ 100cm.
5. adherance according to claim 1, is characterized in that: described in hold on ovum plate and have multiple hole (7) run through.
6. adherance according to claim 1, is characterized in that: described fixing axis (6) is provided with 2-6 and holds ovum plate (2); Describedly hold the both sides that ovum plate (2) symmetry is arranged on fixing axis (6).
7. adherance according to claim 1, is characterized in that: described fixing axis is provided with 4 and holds ovum plate (2), described in hold ovum plate (2) is arranged on fixing axis (6) both sides in fork-shaped symmetry.
8. adherance according to claim 6 or 7, is characterized in that: 2 pieces bottom described fixing axis are held ovum plate and are connected with base plate.
9. adherance according to claim 1, is characterized in that: described in hold ovum plate and be provided with hook (8), described mesh bag is fixed on by hook and holds on ovum plate (2).
10. adherance according to claim 1, is characterized in that: the material of described mesh bag (9) is polyethylene material, and described mesh bag is filled with shell in (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520978118.1U CN205124719U (en) | 2015-11-30 | 2015-11-30 | Big six long cobbles adherance of laying eggs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520978118.1U CN205124719U (en) | 2015-11-30 | 2015-11-30 | Big six long cobbles adherance of laying eggs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205124719U true CN205124719U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520978118.1U Expired - Fee Related CN205124719U (en) | 2015-11-30 | 2015-11-30 | Big six long cobbles adherance of laying eggs |
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| Country | Link |
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| CN (1) | CN205124719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110754401A (en) * | 2019-11-14 | 2020-02-07 | 山东省海洋生物研究院 | Fish egg collecting device and collecting method for artificial fish reef hexagrammos otakii |
-
2015
- 2015-11-30 CN CN201520978118.1U patent/CN205124719U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110754401A (en) * | 2019-11-14 | 2020-02-07 | 山东省海洋生物研究院 | Fish egg collecting device and collecting method for artificial fish reef hexagrammos otakii |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20171130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |