CN102870711A - Device and method for recovering and rebuilding spawning sites of fishes in natural waters - Google Patents
Device and method for recovering and rebuilding spawning sites of fishes in natural waters Download PDFInfo
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- CN102870711A CN102870711A CN2012103423598A CN201210342359A CN102870711A CN 102870711 A CN102870711 A CN 102870711A CN 2012103423598 A CN2012103423598 A CN 2012103423598A CN 201210342359 A CN201210342359 A CN 201210342359A CN 102870711 A CN102870711 A CN 102870711A
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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 a device and a method for recovering and rebuilding spawning sites of fishes in natural waters. The device comprises a box body frame, float bowls, brackets, fixing rings and fish egg attachment matrixes, wherein the box body frame is a cuboid or cube structure, and two edges, which are parallel to each other, on the upper surface of the box body frame are sleeved by one float bowl respectively; the upper surface and the lower surface of the box body frame are fixedly provided with a plurality of brackets, and the brackets are sleeved by a plurality of fixing rings; the fixing rings are connected with the fish egg attachment matrixes; four top corners of the upper surface of the box body frame are connected with an anchor rope respectively; and the device is fixed in waters where the spawning sites of fishes require to be recovered and rebuilt by a bamboo anchor. By the device and the method provided by the invention, a spawning shelter and the fish egg attachment matrixes are provided for fishes, and simultaneously the fish egg attachment matrixes also provide habitats for various bait organism communities, so that the density of bait organisms is improved, the bait supply for fish larvae is guaranteed, the aim of recovering and rebuilding spawning sites of fishes is achieved, and the manual-work spawning sites of fishes formed by the device and the method can automatically rise or drop along with the change of the water level.
Description
Technical field
The invention belongs to the fish technical field of laying eggs, particularly relate to a kind of natural water area fish spawning ground restoration and reconstruction device and method.
Background technology
The fish spawning ground, as the term suggests refer to the place that the fish cluster is laid eggs, the spawning ground provides essential physics and chemistry (such as veil, fish-egg attaching substratum etc.) and biotic factor (mainly referring to the food organisms that larvae juvenile fish is required) for fish lay eggs, the fish spawning ground has irreplaceable effect for fish population procreation and continuity.Yet, owing to causing the fish spawning ground in the natural water area all over the world, the reasons such as mankind's activity, climatic variation, engineering construction are seriously damaged in recent years, and particularly outstanding is that natural water area Mesichthyes oviposition substrate is suffered to destroy and the decline of food organisms abundance.The fish spawning ground is damaged and causes fish population to present that unification trend, diversity sharply descend, endangered species increases, and directly has influence on waters fish population structure.In the face of this present situation, protect the fish spawning ground, seem particularly urgent for fish provide good egg-laying environment.At present, China fish spawning ground Protection only limits to strictly to control pollutant by environmental assessment and enters and avoid engineering construction to occupy the control measures such as fish spawning ground.Yet, yet there are no relevant report for recovery and the method for reconstructing in impaired spawning ground.
Summary of the invention
Technical problem to be solved by this invention provides a kind of natural water area fish spawning ground restoration and reconstruction device and method, can be fish, especially produce the viscid egg fish lay eggs veil and fish-egg attaching substratum are provided, simultaneously the fish-egg adherance also provides habitat for numerous food organisms group, increase food organisms density, ensure the supply of newly hatched larvae bait, thereby reach the purpose of recovering and rebuilding the fish spawning ground.
The technical solution adopted for the present invention to solve the technical problems is: a kind of natural water area fish spawning ground restoration and reconstruction device is provided, comprise box frame, floating drum, support, retainer ring, fish-egg attaching substratum, described box frame is cuboid or cube structure, and overlapping respectively on two limits that are parallel to each other of described box frame upper surface has one or more floating drums; Described box frame upper surface and lower surface are fixed with respectively some supports that are parallel to each other and are parallel to long limit, the number of holders of upper surface and lower surface equate and the position corresponding, cover has several retainer rings and fixing on the described support; The retainer ring of correspondence position connects respectively the up and down two ends of fish-egg attaching substratum on described two supports; Four drift angle places of described box frame upper surface connect respectively anchor line.
Galvanized pipe or steel pipe that described box frame employing diameter is 40～60mm are made by direct welding or with the mode of cross buckle fastening.
Described floating drum is cylindrical, adopts foamed plastics to make.
Described support adopts galvanized pipe or steel pipe, is fixed on the box frame by the mode of welding, and described retainer ring is fixed on the support by the mode of welding.
Described fish-egg attaching substratum is palm sheet or the piece of sack.
Described anchor line adopts pvc material to make, and length is more than 2 times of waters maximum water depth.
A kind of natural water area fish spawning ground restoration and reconstruction method comprises the following steps:
1) several described restoration and reconstruction devices is linked together by described anchor line, form the conjuncted case of laying eggs;
2) in the waters that needs restoration and reconstruction fish spawning ground, use the bamboo anchor to squeeze into 3～5m depths in the mud of seabed;
3) use described anchor line that the conjuncted case of laying eggs is linked to each other with the bamboo anchor.
In the described step 1, four described restoration and reconstruction devices link together in the mode of sphere of movements for the elephants shape.
Beneficial effect
The present invention can be fish, especially produce the viscid egg fish lay eggs veil and fish-egg attaching substratum are provided, simultaneously the fish-egg adherance also provides habitat for numerous food organisms group, increase food organisms density, ensure the supply of newly hatched larvae bait, thereby reach the purpose of recovering and rebuilding the fish spawning ground, formed Technique in Fishes spawning ground can just change automatic lifting with water level.
Description of drawings
Fig. 1 is apparatus of the present invention vertical view;
Fig. 2 is apparatus of the present invention end view (cutaway view);
Fig. 3 is that the present invention uses the state vertical view;
1. box frame 2. floating drums 3. anchor lines 4. supports 5. retainer rings 6. fish-egg attaching substratums
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Such as Fig. 1～shown in Figure 3, a kind of natural water area fish of the present invention spawning ground restoration and reconstruction device, comprise box frame 1, floating drum 2, support 4, retainer ring 5, fish-egg attaching substratum 6, described box frame 1 is cuboid or cube structure, and overlapping respectively on two limits that are parallel to each other of described box frame 1 upper surface has one or more floating drums 2; Described box frame 1 upper surface and lower surface are fixed with respectively some supports 4 that are parallel to each other and are parallel to long limit, support 4 quantity of upper surface and lower surface equate and the position corresponding, cover has several retainer rings 5 and fixing on the described support 4; The retainer ring 5 of correspondence position connects respectively the up and down two ends of fish-egg attaching substratum 6 on described two supports 4; Four drift angle places of described box frame 1 upper surface connect respectively anchor line 3.
Galvanized pipe or steel pipe that described box frame 1 employing diameter is 40～60mm are made by direct welding or with the mode of cross buckle fastening.
Described floating drum 2 is cylindrical, adopts foamed plastics to make.
Described support 4 adopts galvanized pipe or steel pipe, is fixed on the box frame 1 by the mode of welding, and described retainer ring 5 is fixed on the support 4 by the mode of welding.
Described fish-egg attaching substratum 6 is palm sheet or the piece of sack.
Described anchor line 3 adopts pvc material to make, and length is more than 2 times of waters maximum water depth.
A kind of natural water area fish spawning ground restoration and reconstruction method comprises the following steps:
1) several described restoration and reconstruction devices is linked together by described anchor line 3, form the conjuncted case of laying eggs;
2) in the waters that needs restoration and reconstruction fish spawning ground, use the bamboo anchor to squeeze into 3～5m depths in the mud of seabed;
3) use described anchor line 3 that the conjuncted case of laying eggs is linked to each other with the bamboo anchor.
In the described step 1, four described restoration and reconstruction devices link together in the mode of sphere of movements for the elephants shape.
Device provided by the present invention is comprised of box frame 1, floating drum 2, support 4, retainer ring 5, fish-egg attaching substratum 6, anchor line 3 six parts.
Box frame 1 is rectangular structure, and box frame 1 material is galvanized pipe or the steel pipe of diameter 40～60mm, directly welds or use the cross buckle fastening; Box frame 1 height is advisable with 1.2～1.5m.
Floating drum 2 is 4～6 cylindrical foamed plastics, is enclosed within on two limits that are parallel to each other of box frame 1 upper surface.
Support 4 is galvanized pipe or the steel pipe of diameter 20～30mm, directly is welded on upper surface and the lower surface of box frame 1, and support 4 spacings are 600～800mm.
Fish-egg attaching substratum 6 materials are palm sheet, the piece of sack etc., are connected on the retainer ring 5 by diameter 8mm left and right sides PVC rope;
The mode of four restoration and reconstruction devices with sphere of movements for the elephants shape linked together, form the conjuncted case of laying eggs; Select impaired waters, fish spawning ground to throw in the conjuncted case of laying eggs; Before the conjuncted case of laying eggs is thrown in, squeeze into the conjuncted case of laying eggs with the bamboo anchor first and throw in 3～5m depths in the mud of seabed, waters, then by anchor line 3 the conjuncted case of laying eggs is linked to each other with the bamboo anchor, play the effect of the fixing conjuncted case of laying eggs; A plurality of conjuncted lay eggs case each other spacing be 5～8m, be beneficial to water body circulation exchange.
Because anchor line 3 length are more than 2 times of the depth of water, the conjuncted case of laying eggs can fully waft and float on the surface, and can be with morning and evening tides (water surface just changes) automatic lifting.By dropping into the conjuncted case of laying eggs of many groups, can be fish the large-area habitat of laying eggs is provided, thereby realize recovery and the reconstruction in fish spawning ground.
Claims (8)
1. natural water area fish spawning ground restoration and reconstruction device, comprise box frame (1), floating drum (2), support (4), retainer ring (5), fish-egg attaching substratum (6), it is characterized in that: described box frame (1) is cuboid or cube structure, and overlapping respectively on two limits that are parallel to each other of described box frame (1) upper surface has one or more floating drums (2); Described box frame (1) upper surface and lower surface are fixed with respectively some supports that are parallel to each other and are parallel to long limit (4), support (4) quantity of upper surface and lower surface equate and the position corresponding, the upper cover of described support (4) has several retainer rings (5) and fixing; The retainer ring (5) of the upper correspondence position of described two supports (4) connects respectively the up and down two ends of fish-egg attaching substratum (6); Four drift angle places of described box frame (1) upper surface connect respectively anchor line (3).
2. a kind of natural water area fish spawning ground restoration and reconstruction device as claimed in claim 1 is characterized in that: it is that galvanized pipe or the steel pipe of 40～60mm made by direct welding or with the mode of cross buckle fastening that described box frame (1) adopts diameter.
3. a kind of natural water area fish spawning ground restoration and reconstruction device as claimed in claim 1 is characterized in that: described floating drum (2) adopts foamed plastics to make for cylindrical.
4. a kind of natural water area fish spawning ground restoration and reconstruction device as claimed in claim 1, it is characterized in that: described support (4) adopts galvanized pipe or steel pipe, mode by welding is fixed on the box frame (1), and described retainer ring (5) is fixed on the support (4) by the mode of welding.
5. a kind of natural water area fish spawning ground restoration and reconstruction device as claimed in claim 1, it is characterized in that: described fish-egg attaching substratum (6) is palm sheet or the piece of sack.
6. a kind of natural water area fish spawning ground restoration and reconstruction device as claimed in claim 1 is characterized in that: described anchor line (3) adopts pvc material to make, and length is more than 2 times of waters maximum water depth.
7. a natural water area fish spawning ground restoration and reconstruction method is used a kind of natural water area fish spawning ground restoration and reconstruction device as claimed in claim 1, it is characterized in that, comprises the following steps:
1) several described restoration and reconstruction devices is linked together by described anchor line (3), form the conjuncted case of laying eggs;
2) in the waters that needs restoration and reconstruction fish spawning ground, use the bamboo anchor to squeeze into 3～5m depths in the mud of seabed;
3) use described anchor line (3) that the conjuncted case of laying eggs is linked to each other with the bamboo anchor.
8. a kind of natural water area fish spawning ground restoration and reconstruction method as claimed in claim 7 is characterized in that: in the described step 1, four described restoration and reconstruction devices link together in the mode of sphere of movements for the elephants shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103423598A CN102870711A (en) | 2012-09-14 | 2012-09-14 | Device and method for recovering and rebuilding spawning sites of fishes in natural waters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012103423598A CN102870711A (en) | 2012-09-14 | 2012-09-14 | Device and method for recovering and rebuilding spawning sites of fishes in natural waters |
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| CN102870711A true CN102870711A (en) | 2013-01-16 |
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| CN2012103423598A Pending CN102870711A (en) | 2012-09-14 | 2012-09-14 | Device and method for recovering and rebuilding spawning sites of fishes in natural waters |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103749352A (en) * | 2014-01-03 | 2014-04-30 | 中国长江三峡集团公司 | Honeycomb type fry predator avoiding device and application method thereof |
| CN104285865A (en) * | 2014-10-22 | 2015-01-21 | 湖南省水产科学研究所 | Composite artificial roe collector and arranging method thereof |
| CN105519469A (en) * | 2016-01-20 | 2016-04-27 | 中国水产科学研究院东海水产研究所 | Tidal water area fish egg attaching substratum fixing device and sampling method |
| CN105613381A (en) * | 2016-01-20 | 2016-06-01 | 中国水产科学研究院东海水产研究所 | Screening experiment device of roe adhering matrix material and sampling method |
| CN109555075A (en) * | 2019-01-28 | 2019-04-02 | 中国水产科学研究院黑龙江水产研究所 | A kind of natural river salmon-type spawning ground substrate habitat rehabilitation and method for reconstructing |
| CN109657940A (en) * | 2018-12-05 | 2019-04-19 | 北京师范大学 | Based on fish in response to determining that Migration system restores the method for factor priority |
| CN111543369A (en) * | 2020-05-28 | 2020-08-18 | 水利部中国科学院水工程生态研究所 | Artificial fish nest capable of automatically moving along with water level change |
| CN112243902A (en) * | 2020-09-08 | 2021-01-22 | 浙江省海洋水产研究所 | Attach ovum rope formula cuttlefish attachment device that lays eggs |
| CN112655608A (en) * | 2020-12-18 | 2021-04-16 | 浙江省海洋水产研究所 | Sinking type attachment base based on oviposition habit of cuttlefish |
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Cited By (14)
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| CN103749352B (en) * | 2014-01-03 | 2015-09-09 | 中国长江三峡集团公司 | Cellular prelarva evades device and the using method thereof of harmful animal |
| CN103749352A (en) * | 2014-01-03 | 2014-04-30 | 中国长江三峡集团公司 | Honeycomb type fry predator avoiding device and application method thereof |
| CN104285865B (en) * | 2014-10-22 | 2017-02-08 | 湖南省水产科学研究所 | Composite artificial roe collector and arranging method thereof |
| CN104285865A (en) * | 2014-10-22 | 2015-01-21 | 湖南省水产科学研究所 | Composite artificial roe collector and arranging method thereof |
| CN105519469B (en) * | 2016-01-20 | 2018-07-24 | 中国水产科学研究院东海水产研究所 | Tidal waters fish-egg attaching substratum fixing device and the method for sampling |
| CN105613381A (en) * | 2016-01-20 | 2016-06-01 | 中国水产科学研究院东海水产研究所 | Screening experiment device of roe adhering matrix material and sampling method |
| CN105519469A (en) * | 2016-01-20 | 2016-04-27 | 中国水产科学研究院东海水产研究所 | Tidal water area fish egg attaching substratum fixing device and sampling method |
| CN109657940A (en) * | 2018-12-05 | 2019-04-19 | 北京师范大学 | Based on fish in response to determining that Migration system restores the method for factor priority |
| CN109555075A (en) * | 2019-01-28 | 2019-04-02 | 中国水产科学研究院黑龙江水产研究所 | A kind of natural river salmon-type spawning ground substrate habitat rehabilitation and method for reconstructing |
| CN111543369A (en) * | 2020-05-28 | 2020-08-18 | 水利部中国科学院水工程生态研究所 | Artificial fish nest capable of automatically moving along with water level change |
| CN112243902A (en) * | 2020-09-08 | 2021-01-22 | 浙江省海洋水产研究所 | Attach ovum rope formula cuttlefish attachment device that lays eggs |
| CN112243902B (en) * | 2020-09-08 | 2022-02-18 | 浙江省海洋水产研究所 | Attach ovum rope formula cuttlefish attachment device that lays eggs |
| CN112655608A (en) * | 2020-12-18 | 2021-04-16 | 浙江省海洋水产研究所 | Sinking type attachment base based on oviposition habit of cuttlefish |
| CN112655608B (en) * | 2020-12-18 | 2022-02-18 | 浙江省海洋水产研究所 | Sinking type attachment base based on oviposition habit of cuttlefish |
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Application publication date: 20130116 |