CN1219431C - Net cage and net cage breed aquatics method - Google Patents
Net cage and net cage breed aquatics method Download PDFInfo
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- CN1219431C CN1219431C CNB021514984A CN02151498A CN1219431C CN 1219431 C CN1219431 C CN 1219431C CN B021514984 A CNB021514984 A CN B021514984A CN 02151498 A CN02151498 A CN 02151498A CN 1219431 C CN1219431 C CN 1219431C
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- net cage
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- crawl
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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
Abstract
To provide a crawl apparatus preventing a crawl from being drifted or broken and stably carrying out culturing even under severe conditions such as installation in a water area at a high water current speed or rough seas or stormy weather by, as necessary, arranging the crawl on or in the water and to provide a method for culturing in the crawl. The apparatus is equipped with the crawl 12, a buoyancy means 16, as necessary, changing and setting the position of the crawl in an optional sinking position on and in the water while supporting the the crawl 12 on or in the water with buoyancy and mooring means 14 for suppressing planar movement of the crawl 12 and mooring and supporting the crawl. For example, the apparatus is designed to locate the crawl 12 in water with relatively calm waves and float the crawl 12 on the water during operation such as feeding. Thereby, the crawl 12 can be used without being broken even in the open sea, etc., with violent waves and culturing in the crawl can stably be carried out. (C)2004,JPO.
Description
Technical field
The present invention relates to a kind of net cage device and cage culture method that is used for aquaculture.
Background technology
In the past; the breed of aquatic products be with net cage (give birth to け The) be configured in that flow velocity is slow, wave coastal waters, land or inland bay etc. stably; float for example is installed in the net cage frame come-up that is assembled into timber or bamboo etc. at sea, opens and be located at the aquaculture product that fences up in the water being suspended on net on the net cage frame.
As in the past, net cage had been configured in the occasion of the slow inland bay of flow velocity etc., and existing the residue of feeding the bait of giving the interior fish of net cage to be deposited to seabed mudization and cause the problem of marine pollution.And, in the few closed waters of the replacement of the such water of inland bay, the disease that infects fish easily.Particularly in recent years because elements such as the nitrogen that contains in the draining of family or factory etc., phosphorus flow into marine and cause (seawater) eutrophication easily, red tide takes place on the sea make aquatic products be subjected to harmful effect.And in the gulf in the limited space during a large amount of the breed, the intensive configuration net cage of having to, the meltage that has a water oxygen is not enough and cause the danger of fish death.And, when high wind such as typhoon,, thereby produce that net cage drifts about, breakage because floating across the sea net cage frame directly is subjected to the fluctuating or the influence of current fast of the strong ripple that high wind etc. produces, even, produce big infringement owing to the net cage breakage is run away aquatic products.On the other hand, for Marine Pollution not or to not influence and when net cage is configured in the off-lying sea such as aquatic products, because net cage always directly is subjected to the fluctuating of strong ripple or the influence of current fast, the same during with typhoon, net cage drifts about, the dangerous height of breakage, and the setting of net cage in the off-lying sea is difficult.
Summary of the invention
The present invention is exactly in view of above-mentioned existing issue, its objective is a kind of like this net cage device and the cage culture method of providing: freely drift along by making it, even in the fast waters of flow velocity or the stronger off-lying sea of wave etc., also can be configured in where necessary and prevent drift or damaged in the water, can culture well.And another object of the present invention provides and a kind ofly can cushion, disperse to support the tension force of the rope etc. of net cage, stably supports the net cage device and the cage culture method of net cage.And, a further object of the invention provide a kind of when guaranteeing to make the net cage come-up operability and prevent the distortion of net cage net, protect the net cage device and the cage culture method of aquatic products.
In order to address the above problem, net cage device of the present invention is characterized in that, comprising: net cage; Buoyant device, its with net cage buoyancy be supported in waterborne or the water, and where necessary change of location net cage is set in the position that sinks arbitrarily in waterborne and the water; With hitch device, its plane to net cage is moved and is controlled, and is hitched and support,
Described buoyant device comprises that the buoyancy adjustment that can adjust self buoyancy is with float with always net cage buoyancy is supported in fixed buoyancy float waterborne.
And net cage 12 also can be made of the tectosome that sinks in the water in free state.
And can comprise and hitch the tension force snub rope mechanism 33 that device 14 is connected, cushions the tension force around the net cage and supports net cage.
And tension force snub rope mechanism 33 also can comprise with net cage 12 and being connected, according to the layback rope 32 that around this net cage 12, disposes like that.
And, hitch device 14 and comprise anchor (anchor) 36 and the anchor line 38 that an end is connected with anchor 36, the other end is connected with layback rope 32; And, hitching on the binding site P that float 40 is connected anchor line 38 and layback rope 32, buoyancy is supported this binding site P.
And net cage 12 can also comprise that come-up the time can become the upper frame body 18 at the foothold that operation uses and is installed on the upper frame body 18, opens the net cage net 20 that is located in the water; Lower end side at net cage net 20 is equipped with lower frame body 22.
And, cage culture method of the present invention, following formation: on one side be supported in net cage 12 buoyancy waterborne with buoyant device 16 or water in, on one side where necessary on the water with water in arbitrarily the position of sinking carry out the change of location setting, Yi Bian culture; Above-mentioned net cage comprises from sink to framework 18 water in free state and hangs down and be configured in net in the water.
Description of drawings
Fig. 1 is the perspective view of an example of net cage device of the present invention
Fig. 2 is the vertical view that has dispensed the net cage device of a part of Fig. 1
Fig. 3 is the end view of the net cage device of Fig. 1
Fig. 4 is the key diagram of effect of the net cage device of Fig. 1
Fig. 5 is the key diagram of embodiment that has connected the net cage device of a plurality of Fig. 1
Embodiment
The example of net cage device of the present invention and cage culture method is described with reference to the accompanying drawings.Net cage device of the present invention, be on one side be supported in net cage buoyancy waterborne or water in, on one side change of location is set the position of any sinking for as required, thus, state that one side conversion framework as required floats on the surface and framework sink to being configured in the state in the water, Yi Bian the net cage device of culturing.
Fig. 1～Fig. 4 has represented the example of net cage device of the present invention, in example, net cage device 10 comprise net cage 12, buoyant device 16 and hitch support net cage hitch device 14.
In Fig. 1, net cage 12 comprises upper frame body 18 and net cage net 20.Net cage 12 is frame mountings of band culturing net, this frame mounting with framework for example always be configured in waterborne, the net cage net is hung down and the fish that will culture the juvenile fish of porgy, Yellowtail, Yellowtail of object and other breed objects is put device inside into and cultures from framework; In order not allow the fish of culturing object run away, the net cage net form becomes in the square shape that the end is arranged and the water that hangs down.As shown in Figure 2, upper frame body 18 is to overlook framework for rectangle with what metals such as steel pipe were for example formed, forms big rectangular aperture in central authorities, and in order to make the foothold that can become around it for the people, is assembled into the shape of the inside and outside double frame of certain width.Upper frame body 18 is constituted as the intensity of the impact of the weight of withstanding the people and certain current or ripple.And upper frame body 18 is not limited to steel pipe, also can constitute with any material that certain intensity and corrosion resistance are arranged.And package assembly is not limited to overlook and is rectangle, also can be assembled into triangle, pentagon and other polygonal, perhaps circular, oval and other shapes arbitrarily.As shown in Figure 3, railing 19 is installed on upper frame body 18, this railing 19 be subjected to the upright support of being located at the vertical pole on the inside casing and identical with the inside casing shape, in example for overlooking quadrangle.Framework 18 is by buoyant device 16 buoyancy supports, and this buoyant device 16 has a plurality of floats 24,26 of narration later on.In this example, because upper frame body 18 forms by steel pipe, so under separately promptly not by the free state of the buoyant device support of big buoyancy such as float, the weight ratio buoyancy of upper frame body self is big, sinks in the water.Upper frame body 18 in the time of on floating to the sea, becomes operator's foothold, and for example the operation of feeding bait or catching etc. of aquatic products is good.
In this example, as Fig. 1, shown in Figure 3, net cage net 20, be positioned at upper frame body 18 central opening portion under, form the shape of solid rectangle case for example appearance, open and be located in the water.Net cage net 20 surrounds all around up and down six, forms the space of taking in aquatic products in inside.The net of upper face side also can make a part of freely openable as feeding the cover net that bait is used.And the shape of net cage net is arbitrarily, with the shape of upper frame body accordingly, surround three-dimensional polygon or cylindrical shape and other shape.Net cage net 20 is formed by for example wire netting.Because wire netting has certain rigid,, also be not easy distortion even use in the waters or the strong waters of wave of current urgency.And net cage net 20 is not limited to wire netting, also can be the rope that forms with chemical fibre such as polyethylene or rope etc., and other is suitable for the material of culturing net.And, be supported in when waterborne by buoyancy at upper frame body 18,, do not watch out for by net in order to make aquatic products because of contacting the wave sound that produces with water, and the net cage net 20 of upper face side is preferably disposed on the position higher than the water surface.
As shown in Figure 3, the lower end side of net cage net 20 is fixed with lower frame body 22.As Fig. 1, shown in Figure 3, lower frame body 22 is by forming with the same steel pipe of upper frame body 18, and it is rectangular box-like to be connected into net cage at the quadrangle periphery of net cage net 20 bottom surface sides.This lower frame body 22 prevents net cage net 20 owing to current are out of shape, and prevents unexpected net-fault of aquatic products and injured.And, because lower frame body 22 is fixed on the lower end side of net cage net 20 with weighing body, so make the center of gravity of net cage 12 be positioned at the below, keep the stability of net cage in water.
In this example, net cage 12, the weight construction body of the upper frame body 18 that is formed by steel pipe or wire netting etc., assembling net cage net 20 is formed, therefore promptly has only net cage 12 (in this example, comprising upper and lower framework 18,22 and net cage net 20) and during the state do not supported by big buoyancy such as floats, net cage can sink in the water in free state.As shown in Figure 3, net cage 12 usefulness buoyant devices 16 buoyancy are being supported.
In this example, buoyant device 16 is the buoyancy supportive device of net cage 12, and it is supported in position waterborne and that as required the net cage change setting is sunk arbitrarily in the water with net cage 12 buoyancy.In this example, buoyant device 16 comprises fixed buoyancy float 24 and buoyancy adjustment float 26 shown in Fig. 2,3.Shown in Fig. 2,3, fixed buoyancy float 24 is configured to for example be roughly the shape of straw bag, and fixed configurations has a plurality of below upper frame body 18.Fixed buoyancy float 24 inside are filled with air, always with certain buoyancy in net cage 12.Fixed buoyancy float 24 alleviates the weight of net cage 12 in water, to alleviate the holding power that hitches device 16 when net cage sinks.Fixed buoyancy float 24, if to the buoyancy equalization of net cage 12 effect and be balanced good configuration, then net cage is stable, and is comparatively desirable.Be the opposite side that is configured in upper frame body 18 symmetrically in this example, make to be configured to the same buoyancy of 4 limits acquisition.Because fixed buoyancy float 24 rises and falls integratedly with net cage 12, so fixed buoyancy float 24 usefulness form the high material of hydraulic pressure resistance to pressure.
As shown in Figure 4, when net cage 12 is sunk, discharge air by opening air valve 28 on one side, make water on every side from the plumbing mouth enter float hollow inside (thereby), to reduce the buoyancy of buoyancy adjustment usefulness float, the weight that makes net cage is greater than buoyancy, and net cage is sunk.On the other hand, when making net cage 12 come-ups, from air valve 28 force feed air, the water of inside is discharged, increase buoyancy once more so that net cage floats to waterborne from discharge outlet with compressor C.Pushing inlet pressure by plus-minus compressor C etc. changes the rate of change of internal buoyance, thereby changes the speed of net cage come-up.Make all a plurality of buoyancy adjustment with float 26, always reach identical buoyancy and be pressed into, discharge air.Net cage 12 float to waterborne after, close the buoyancy adjustment with the air valve 28 of float 26, in case air accidental release or water enter, reduce to prevent buoyancy.In addition, this example is the compressor of force feed air though the buoyancy adjustment uses when buoyancy is adjusted with float, also can with pump etc. make the adjustment of water turnover buoyancy with the inside of float, adjust buoyancy.The number of air valve and discharge outlet is arbitrarily, and its desired location also can be arbitrarily.Buoyancy adjustment float if making net cage when come-up, buoyancy is set to maximum so that upper frame body is configured to be higher than the water surface, is not flushed to by wave in the time of then can making pin step down on the upper frame body, can make the operation of feeding bait etc. good.
As shown in Figure 2,32 following in layback rope is established: plane earth forms the framework that is roughly rectangle than upper frame body 18 big overlooking around net cage 12; Layback rope 32 is configured in the position of any degree of depth in the water as shown in Figure 3.Layback rope 32 is connected with net cage 12, and is configured to around this net cage, and forms the tension force snub rope mechanism 33 that the tension force from the relative net cage around the net cage is cushioned.Herein, tension force snub rope mechanism 33 with hitch the tension force buffer unit that device 14 is connected, cushions the tension force around the net cage 12 and supports net cage 12.In example, dimetric 4 angles that layback rope 32 forms are connected by connection cord 34 respectively with 4 angles of upper frame body 18.On each angle of the rectangle frame of layback rope 32, connecting the other end of anchor line 38 respectively, always by anchor from around 4 directions haul equably and support.
When net cage 12 floated on the surface, an end was fixed on the support tension force primary action of the anchor line 38 on the anchor 36 in layback rope 32, and supported net cage 12 indirectly by the connection cord 34 that is connected with this layback rope.Therefore, with this state when the waters weather for example, the tension force that 4 anchor lines 38 that for example connect by being fixed at the angle extending direction produce, impose on connection cord 34, and the corresponding rope in each limit of layback rope that connects into square shape is each other while cushioning pulling, making even tensionization, and each connection cord 34 that is connected with the position, angle of layback rope, be with homogenising stable tension, stretch to support the device of the upper frame body 18 of net cage from the position, angle.In addition, when for example anchor line 38 directly being connected with net cage 12, big moment tension force during weather etc., irregular and play shape ground and directly impose on net cage, exist damaged or damage and make device self or the breed fish runs away and produces big danger such as infringement.
And, on the binding site P of layback rope 32 and anchor line 38, connecting and swimming in the float 40 that hitches waterborne by hitching rope 42.Layback rope 32, because binding site P is hitched float 40 buoyancy and is being supported, so the holding power that produces by anchor line 38 to the tension force of seabed side, with the support equilibrium of forces that hitches that rope 42 produces to the buoyancy of sea side, be maintained in the water certain position of the degree of depth arbitrarily.And, layback rope 32, for its when making net cage 12 sink in the water, do not sink because of the weight of net cage 12, set fixed buoyancy float 24 or hitched the buoyancy of float 40.Layback rope 32 has nothing to do, always is supported on certain position with the state of net cage 12.
As shown in Figure 4, by the depth location of layback rope 32 configurations and the length of connection cord 34, the minimum subsidence position H (amplitude that net cage moves up and down) of decision net cage 12.In this example, the set positions that layback rope 32 is disposed in water is 1/2nd of minimum subsidence position H, and connection cord 34 is in the roughly state of tension in the time of on net cage 12 floats to and below sinking to, and stably hitches and supports net cage 12.Therefore, because having limited net cage 12 sinks to the seabed, therefore can prevent that net cage net 20 from producing damaged or distortion owing to contacting with the seabed,, can be implemented in the depth of water (hydraulic pressure) position that is suitable for aquatic products and use net cage even net cage can not sink too deeply in the position of the depth of water yet.If allow the net cage net sink to the bottom, then exist the end of net cage net to contact the generation breakage with the seabed, or in the marine site of the depth of water because hydraulic pressure and cause bad influence, owing to make the air supply elongated or make the resistance to pressure of float uprise the situation that increases material cost with flexible pipe to aquatic products.And, because the layback rope is configured in the water, for example when allowing ship, there is not interference near net cage 12, can prevent that the screw etc. of ship from cutting off rope.If the bottom side according to net cage net 20 does not contact the minimum subsidence position H that sets net cage 12 like that with the seabed, then layback rope 32 is configured, remains on position certain in the water.And because net cage 12 is to rise and fall under the state that is surrounded by layback rope 32, when therefore having prevented net cage 12 moving up and down and when sinking more effectively in come-up, the deviation of plan-position.And, because this layback rope 32 directly is connected with anchor line respectively in water and connects into the i.e. quadrangle that goes in ring, thus can prevent anchor line in water owing to current produce big bending, have the function that helps the net cage of buoyancy support stably in water.
Fig. 5 has represented to have connected the embodiment of a plurality of net cages 12 on layback rope 32.As shown in Figure 5, around connecting a plurality of net cages 12, centering on them, the layback rope is set like that, and each angle of net cage is being connected with the layback rope.Carry out on one side that a plurality of net cage devices can be unified to hitch and the ground buoyancy support of rising and falling, and in water, carry out the protection etc. of net cage on one side.In addition, the layback rope is not limited to the rectangle frame shape, can open according to the allocation position of net cage or anchor to be set as shape arbitrarily.
The following describes the effect of the net cage device relevant and the example of cage culture method of the present invention with this example.Net cage device 10 for example is accommodated in aquatic products in the net cage net 20, makes net cage 12 swim in the sea as shown in Figure 3 always and is configured, and hitches support with hitching device 14, is limiting moving of plane.At this moment, the buoyancy adjustment of buoyant device 16 has been enclosed air with float inside, with fixed buoyancy float 24, play the buoyancy function that net cage 12 can be swum in the water surface.For example when high wind such as storm, discharge with the air valve 28 of float 26, with the air of inside and seawater is poured into from each buoyancy adjustment by plumbing mouth 30, to alleviate buoyancy net cage is sunk in the water.Marine by net cage is sunk to and since marine great waves than the sea a little less than, can make net cage died down by the influence of wave, prevent that net cage from drifting about or destroyed.So, after high wind is calmed down, with the air valve 28 of float compressed air is sent into the buoyancy adjustment from the buoyancy adjustment with compressor C etc. and with the inside of float and from plumbing mouth 30 water is discharged and make buoyancy increase, once more net cage be floated on the sea.And,,, can sink to the marine influence of avoiding aquatic products equally because red tide occurs in water surface side even when red tide takes place.
And, as other use form, can be used in always net cage to be sunk to and be subjected in the littler water of the influence of wave than the water surface, only make the net cage come-up in case of necessity feeding bait or catch operation etc.Therefore, even the net cage device is placed on fast waters of flow velocity or the stronger marine site of wave, also can be by net cage being configured in the breakage that prevents net cage in the water.Owing to can use in the fast place of water velocity, be difficult for causing therefore that dissolved oxygen lacks or marine pollution, can improve breed efficient.And, can keep the environment good to aquatic products because the variations in temperature in the water is littler than the sea.
Net cage device of the present invention is not limited to above-mentioned example, can do any change in not exceeding essential scope of the present invention.For example, net cage device, fixed buoyancy float, buoyancy adjustment can be set arbitrarily with the shape of float etc., size etc.And fixed buoyancy float, buoyancy adjustment also are arbitrarily with number, the allocation position of float etc., and be just passable according to the buoyancy stepless action is installed like that.And also can make the buoyancy adjustment is the structure of bog with float or other float.
The invention effect
As mentioned above, according to net cage device of the present invention, it comprises: net cage; Be supported in net cage buoyancy in waterborne or the water and as required change of location, net cage is set in waterborne and the water buoyant device of the position that sinks arbitrarily; Move and hitch the device that hitches of supporting net cage with the plane of restriction net cage; Therefore, net cage is is freely risen and fallen, the degree of freedom of the position that net cage is arranged on inside and outside the bay etc. according to current, weather conditions is improved by leaps and bounds, particularly net cage is configured in than the water surface and is subjected in the littler water of the influence of wave, can prevent that net cage from drifting about or destroyed.And make net cage when high wind keep out of the way with and subsequent reset and can carry out simply.And, utilize net cage owing to can be implemented in the stronger off-lying sea of the fast gulf external water area of water velocity or wave etc., therefore can solve marine pollution, the infection of aquatic products disease, the generation of red tide and the oxygen deficiency of dissolving etc. when being arranged on the grade bay in, that cause owing to the mudization of the bait that is deposited to the seabed variety of issues such as infringement aquatic products.
And, by net cage is become by sink to the structure that the tectosome in the water constitutes in free state, make the net cage frame constitute the tectosome of high strength such as metal tube, and can easily control sink-float and can reduce manufacturing cost with net cage itself as the weight utilization that net cage sinks.
By buoyant device being become comprise the buoyancy adjustment that to adjust self buoyancy structure with float, can increase the buoyancy adjustment as required with the buoyancy of float, be supported in net cage buoyancy waterborne, perhaps reduce buoyancy net cage is configured in the water position that sinks arbitrarily, can realize the structure that net cage freely rises and falls.
And, by being become, buoyant device comprises the structure that always net cage buoyancy is supported in fixed buoyancy float waterborne, not only can obtain the net cage necessary buoyancy that floats, and when being sunk, net cage make buoyancy in net cage, alleviate the weight of net cage in water, can alleviate the holding power that hitches device.
By it being become comprise and hitching the structure that device is connected, cushions the tension force around the net cage and supports the tension force snub rope mechanism of net cage, can disperse tension force to net cage, support net cage with uniform tension force, even net cage is arranged on the fast waters of flow velocity or under harsh condition such as stormy weather, weather, also can stably carries out the breed of aquatic products.
And be connected by tension force snub rope mechanism being become comprise with net cage, according to the structure of the layback rope that around this net cage, disposes like that; not only can be with simple structure, around net cage, support net cage with uniform tension stability ground, and can reach height and position in water of setting net cage when in water, disposing, net cage simultaneously and be subjected to the protection etc. of anchor line.
Mooring device is become comprise the anchor line that anchor is connected with anchor with an end, the other end is connected with the layback rope, and make the structure that the mooring float is connected on the binding site of anchor line and layback rope, buoyancy is supported this binding site, pass through said structure, can buoyancy support the binding site of layback rope and anchor line and the layback rope is remained on the position of certain depth in the water, can prevent to restrict and realize the various functions of layback rope because current produce bending effectively.
And; can become the upper frame body at the foothold that operation uses when net cage being become comprise come-up and be installed on the upper frame body, open the net cage net that is set in the water; and the lower end side of net cage net is equipped with the structure of lower frame body; pass through said structure; not only the operation when operation such as for example feed bait or catch is good; and can prevent the distortion or the breakage of net cage net, and can protect aquatic products.
And, if according to cage culture method of the present invention, by under free state, on one side buoyancy be supported in waterborne or the water and in case of necessity on the water with water in the position that sinks arbitrarily carry out change of location and set, culture on one side, can improve net cage is arranged on inside and outside the bay etc. the position according to current or weather conditions degree of freedom by leaps and bounds, particularly net cage is arranged on be subjected to wave influence than in the little water of the water surface, can prevent that net cage from drifting about or destroyed.And keeping away of net cage moved back and subsequent resetted and can carry out simply during high wind.And, even in the fast waters of flow velocity or swellings, heaving and subsiding strong waters, by little marine of the influence that net cage is always sunk to be subjected to ripple, only when feeding operation such as bait, net cage is floated up, also can alleviate net cage be subjected to wave influence, prevent the net cage breakage, carry out good breed.And utilize net cage owing to can be implemented in the stronger off-lying sea of the fast bay external water area of flow velocity or wave etc., therefore can solve when being arranged in the bay generation of disease propagation, red tide of marine pollution that the mudization owing to the bait that is deposited to the seabed produces, aquatic products and dissolved oxygen deficiency etc. and cause variety of issues such as infringement aquatic products.
Claims (7)
1. a net cage device is characterized in that, comprising: net cage; Buoyant device, its with net cage buoyancy be supported in waterborne or the water, and where necessary change of location net cage is set in the position that sinks arbitrarily in waterborne and the water; With hitch device, its plane to net cage is moved and is controlled, and is hitched and support,
Described buoyant device comprises that the buoyancy adjustment that can adjust self buoyancy is with float with always net cage buoyancy is supported in fixed buoyancy float waterborne.
2. net cage device as claimed in claim 1, net cage is made of the tectosome that sinks in the water in free state.
3. as any described net cage device in the claim 1～2, it is characterized in that, comprise and hitch the tension force snub rope mechanism that device is connected, cushions the tension force around the net cage and supports net cage.
4. net cage device as claimed in claim 3, tension force snub rope mechanism comprises with net cage and being connected, centers on the layback rope that is configured of this net cage on every side.
5. net cage device as claimed in claim 4 hitches device and comprises: anchor; The anchor line that one end is connected with anchor, the other end is connected with the layback rope; And, hitching on the binding site that float is connected anchor line and layback rope, buoyancy is supported this binding site.
6. net cage device as claimed in claim 5, net cage comprise that come-up the time can become the upper frame body at the foothold that operation uses and is installed on the upper frame body, opens the net cage net that is located in the water; Lower end side at the net cage net is equipped with lower frame body.
7. cage culture method, it is characterized in that, on one side with buoyant device with net cage buoyancy be supported in waterborne or the water, and where necessary on the water with water in the position that sinks arbitrarily carry out the position change setting, culture on one side, described net cage comprises from sink to framework the water in free state and hangs down, is configured in net in the water.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002276494A JP2004113003A (en) | 2002-09-24 | 2002-09-24 | Crawl apparatus and method for culturing in crawl |
| JP276494/2002 | 2002-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1484948A CN1484948A (en) | 2004-03-31 |
| CN1219431C true CN1219431C (en) | 2005-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021514984A Expired - Fee Related CN1219431C (en) | 2002-09-24 | 2002-11-22 | Net cage and net cage breed aquatics method |
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| Country | Link |
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| JP (1) | JP2004113003A (en) |
| CN (1) | CN1219431C (en) |
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| WO2011102693A2 (en) * | 2010-02-22 | 2011-08-25 | 인하대학교 산학협력단 | Photobioreactor for mass culture of microalgae, and method for culturing microalgae by using same |
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-
2002
- 2002-09-24 JP JP2002276494A patent/JP2004113003A/en active Pending
- 2002-11-22 CN CNB021514984A patent/CN1219431C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100502647C (en) * | 2007-07-09 | 2009-06-24 | 中国海洋大学 | Convenient lifting rope type marine culture mesh cage |
| CN107114287A (en) * | 2016-02-25 | 2017-09-01 | 金成旭 | Cultivation apparatus in salmon class water |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004113003A (en) | 2004-04-15 |
| CN1484948A (en) | 2004-03-31 |
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