CN106577563A - Lossless catching method for wild rabbitfish siganus oramin - Google Patents
Lossless catching method for wild rabbitfish siganus oramin Download PDFInfo
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- CN106577563A CN106577563A CN201611012838.8A CN201611012838A CN106577563A CN 106577563 A CN106577563 A CN 106577563A CN 201611012838 A CN201611012838 A CN 201611012838A CN 106577563 A CN106577563 A CN 106577563A
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- fish
- wild
- macula lutea
- lossless
- catching
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 241001274981 Siganus canaliculatus Species 0.000 title abstract description 9
- 241000251476 Chimaera monstrosa Species 0.000 title abstract 8
- 241000251468 Actinopterygii Species 0.000 claims abstract description 72
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 241000728028 Kentrocapros rosapinto Species 0.000 claims description 91
- 210000002189 macula lutea Anatomy 0.000 claims description 79
- 241000206588 Gracilaria tenuistipitata Species 0.000 claims description 13
- 235000003913 Coccoloba uvifera Nutrition 0.000 claims description 12
- 240000009212 Coccoloba uvifera Species 0.000 claims description 12
- 235000013305 food Nutrition 0.000 claims description 10
- 206010038743 Restlessness Diseases 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 6
- 239000013535 sea water Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000009360 aquaculture Methods 0.000 claims description 3
- 244000144974 aquaculture Species 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000004459 forage Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000003643 water by type Substances 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000009395 breeding Methods 0.000 abstract description 4
- 230000001488 breeding effect Effects 0.000 abstract description 4
- 230000003542 behavioural effect Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 230000000877 morphologic effect Effects 0.000 abstract 1
- 230000003938 response to stress Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000036541 health Effects 0.000 description 4
- 241000195493 Cryptophyta Species 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 241000222065 Lycoperdon Species 0.000 description 1
- 241000276618 Perciformes Species 0.000 description 1
- 241000768494 Polymorphum Species 0.000 description 1
- 241001275794 Siganidae Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 244000038280 herbivores Species 0.000 description 1
- 230000000366 juvenile effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000017448 oviposition Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000384 rearing effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002435 venom Substances 0.000 description 1
- 210000001048 venom Anatomy 0.000 description 1
- 231100000611 venom Toxicity 0.000 description 1
- 238000003809 water extraction Methods 0.000 description 1
- 239000009916 yin-huang Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K69/00—Stationary catching devices
- A01K69/06—Traps
- A01K69/08—Rigid traps, e.g. lobster pots
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/02—Receptacles specially adapted for transporting live fish
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a lossless catching method for wild rabbitfish siganus oramin. The lossless catching method comprises selection of a catching sea area, making of a catching device, selection of catching season and time, and live fish transport. Through the lossless catching method, according to the life habits, morphological structure and behavioral characteristics of the rabbitfish siganus oramin, with the integration of the selection of the catching sea area, selection of the catching device, selection of the catching season and time, live fish transport and other technical steps, the wild rabbitfish siganus oramin does not leave water in the whole catching process, stress responses caused by catching are reduced, and meanwhile, the condition of mutual puncturing injuries caused by crowding is avoided. Through the lossless catching method, the present catching problem of the healthy wild rabbitfish siganus oramin can be solved effectively, robust parent fishes are provided for artificial breeding of the rabbitfish siganus oramin, meanwhile, healthy seedling is provided for cultivation of the rabbitfish siganus oramin, and finally, the cultivation benefit of the rabbitfish siganus oramin is increased.
Description
Technical field
The present invention relates to fish culture technical field, more particularly to a kind of wild macula lutea basket fish is lossless to catch the method for grabbing.
Background technology
Macula lutea basket fish (Siganus oramin) is commonly called as that mud is violent, smelly tripe fish, is under the jurisdiction of Perciformess, siganidae, basket
Fish belongs to, and is offshore small fishes, and distribution is wide, is distributed in East China Sea, the South Sea and Taiwan marine site.Its fine and tender taste, taste
Deliciousness, it is deep to be liked by consumer；Due to the feeding habits feature of its omnivorous inclined phytophagous, and eating periphtic algae, it is easy with feed source
Solve, aquaculture cost is low, premunition is strong, cleanable etting, many advantages, such as breeding cycle is short.In recent years, send out in the South China coastal
Exhibition is rapid, it has also become coastal seawater cage culture is main to support and raise together with one of ominivore-fish new object, and the market demand is increasing,
With huge cultivation potentiality to be exploited.But the complete artificial biological control of macula lutea basket fish not yet obtains substantive breakthroughs, at present,
China macula lutea basket fish culture seed is mainly the Direct Acquisition from natural waterses, and its quality and quantity is all difficult to meet its cultivation
The development of industry.Parent fish rearing is to develop the key issue that macula lutea basket fish first has to solve, and successfully obtains the wild parent fish of health
It is the primary work of macula lutea basket fish whole artificial propagation needs solution, meanwhile, before large-scale artificial breeds seed success, greatly
The fish wild seed supply of amount health remains macula lutea basket fish culture industry urgent need to solve the problem,
The stress of macula lutea basket fish is very strong, and fish body body colour is drastically deepened and rebounded when frightened, and adult fish compares juvenile fish
More very.Will be dead within water very short time, meanwhile, length has hard and long on the dorsal fin of macula lutea basket fish, anal fin, tail fin
Thorn, the root of thorn can secrete venom, be pierced and then can feel severe pain, be caught with tradition and grab wild macula lutea basket fish method, Chang Yinhuang
The raising in later stage that stress cause with stabbing each other of speckle basket fish fails.
The content of the invention
In order to solve above-mentioned the deficiencies in the prior art, a kind of wild macula lutea basket fish of present invention offer is lossless to catch the method for grabbing,
Aim to solve the problem that tradition catch grab during wild macula lutea basket fish it is easily injured in response to sharp strong reaction the problems such as.
The technical problem to be solved is achieved by the following technical programs：
A kind of wild macula lutea basket fish is lossless to catch the method for grabbing, and comprises the following steps：
（1）Catch the selection for grabbing sea area
Select Shallow sea bay；, there is natural screening in the semi-open sea area of the 5-15m depth of waters, and sea area physical features is flat,
Silt quality and tide sea water unobstructed, the cm/s of ocean current flow velocity 20 ~ 50 of flowing, 18 ~ 28 DEG C of surface temperature, the mg/ of dissolved oxygen 6
More than L, the m of transparency 0.5 ~ 1.5, pH 7.2 ~ 8.5；
（2）It is lossless to catch the making for grabbing device
The cylindric cylinder mould for grabbing device including a top closing bottom opening is caught, the cylinder mould bottom connects water storage fish bottom
Box, the size and shape of the cylinder mould bottom opening is consistent with the open-topped size of water storage fish back box and shape, institute
State cylinder mould be provided with one from the dictyosome of the cylinder mould to the cylinder mould inside the half elliptic that tapers into enter fish passage, it is described enter
Fish channel bottom sets a food calling platform；
（3）Catch and grab season with the selection of time
The wild macula lutea basket fry kind of the South China coastal is caught and grabs selection in May-July；Wild catching for macula lutea basket fish adult fish grabs choosing
Select whole year to catch and grab；Wild macula lutea basket fish parent fish is selected in January-March and catches and grab；Catch, dark relatively low in water temperature of grabbing selection of time
17. -20 points or the point of 5:00 AM -7；
（4）The transport of live fish
By above-mentioned steps（2）It is described catch to grab device and be put into lossless the catching of Shallow sea bay catch after wild macula lutea basket fish, by wild Huang
Speckle basket fish is temporarily supported in small-sized net cage, and a dark cover net is covered on net cage, shelters from personnel's operation, and off the net with rope in cover
Son uniformly hangs over Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape in net cage, increases veil, it is to avoid basket fish is crowded in subenvironment
In stress and cause restless and accelerate travelling；With fishing boat by it is temporary support net cage be dragged to bank harbour, with upper strata be permeable fishing net layer,
Lower floor is that the landing-spoon of fluid-tight plastic layer composition repeatedly reaps work in batches on a small quantity by the macula lutea basket fish in net cage is temporarily supported
Fish transport vehicle, being transformed on the transfer cask of the live fish carrier of similar temporarily foster net cage a dark cover net is covered, and shelters from people
Member's operation, and uniformly hang over Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape in transfer cask in cover rope off the net, increase veil,
Avoid basket fish it is crowded in subenvironment stress and cause restless and accelerate travelling.
Preferably, the food calling platform is provided with elastic stainless steel bar or clip to fixed bait.
Preferably, it is described enter fish passage height be the 1/3 to 1/2 of the cylinder mould height.
Preferably, the bottom of water storage fish back box includes a fixed plate and a portable plate, the fixed plate with it is described
By gemel connection, the portable plate is provided with one first drawstring to portable plate, and the first drawstring other end passes through the cylinder mould
Inside extends to the cylinder mould over top.
Preferably, the hinge is elastic hinge.
Preferably, the portable plate edge is provided with sealing ring.
Preferably, the water storage fish back box internal edge is provided with the portion of fixed Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape
Part.
Preferably, the cylinder mould material is rustless steel, galvanized wire or wooden.
Preferably, catching for wild macula lutea basket fish adult fish grabs selection in water temperature height, and bait enriches, macula lutea basket fish forage frequency
Numerous May-September.
The present invention has the advantages that：Wild macula lutea basket fish is lossless catches the method for grabbing for this, according to macula lutea basket fish
Life habit, morphosiss, ingest and behavioral characteristic, comprehensively catch grab the selection in sea area, catch grab the making of device, catch grab season with
The technical steps such as selection, the transportation of live fish of time, make entirely to catch grab during macula lutea basket fish not from water, reduce and cause because catching to grab
Stress, while avoiding crowded and stabbing each other.The difficulty of the current healthy wild macula lutea basket fish of the method energy effectively solving
To catch the difficult problem grabbed, healthy and strong parent fish is provided for macula lutea basket fish artificial breeding, meanwhile, the cultivation for macula lutea basket fish provides strong
The seed of health, finally improves its culture benefit.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Structure according to these accompanying drawings obtains other accompanying drawings.
Fig. 1 is that wild macula lutea basket fish is lossless in the present invention catches the overall structure diagram for grabbing device；
Fig. 2 is the overlooking the structure diagram that water stores up fish back box；
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 110 | Cylinder mould | 111 | Enter fish passage |
| 120 | Water stores up fish back box | 121 | Fixed plate |
| 122 | Portable plate | 123 | Hinge |
| 124 | Sealing ring | 130 | Food calling platform |
| 131 | Clip | 140 | First drawstring |
| 141 | Draw ring | 150 | Second drawstring |
The realization of the object of the invention, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly and completely
Description, it is clear that described embodiment a part of embodiment only of the invention, rather than the embodiment of whole.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, the scope of protection of the invention is belonged to.
It is to be appreciated that the directional instruction of institute in the embodiment of the present invention（Such as up, down, left, right, before and after ...）Only use
In explanation in a certain particular pose（As shown in drawings）Under relative position relation, motion conditions between each part etc., if should
When particular pose changes, then directionality indicates also correspondingly to change therewith.
In addition, the description for being related to " first ", " second " etc. in the present invention is only used for describing purpose, and it is not intended that referring to
Show or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", "
Two " at least one this feature can be expressed or be implicitly included to feature.In addition, the technical scheme between each embodiment can
To be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when the combination of technical scheme occurs
It is conflicting or when cannot realize should people think that the combination of this technical scheme is not present, also not in the protection of application claims
Within the scope of.
The present invention proposes that a kind of wild macula lutea basket fish is lossless and catches the method for grabbing.
It is that wild macula lutea basket fish of the invention is lossless with reference to Fig. 1 and Fig. 2, Fig. 1 to catch lossless catching in the method for grabbing and grab device
Overall structure diagram；Fig. 2 is the overlooking the structure diagram that water stores up fish back box；
A kind of wild macula lutea basket fish is lossless to catch the method for grabbing, and comprises the following steps：
(1) selection for grabbing sea area is caught
Select Shallow sea bay；, there is natural screening in the semi-open sea area of the 5-15m depth of waters, and sea area physical features is flat,
Silt quality and tide sea water unobstructed, the cm/s of ocean current flow velocity 20 ~ 50 of flowing, 18 ~ 28 DEG C of surface temperature, the mg/ of dissolved oxygen 6
More than L, the m of transparency 0.5 ~ 1.5, pH 7.2 ~ 8.5；Macula lutea basket fish mainly lives in the abundant Shallow sea bay of bait, likes
Cluster, and be mostly single fingerling group activity, like the algae adhered on reef of ingesting.Macula lutea basket fish feeding habits are omnivorous inclined herbivore
Property, the cage culture area in Shallow sea bay is more due to cultivating bait throwing in, and macula lutea basket fish assembles outside net cage robs food and leak through net cage
Bait, select in the Shallow sea bay for having aquaculture net cage to be distributed it is therefore preferred that catching and grabbing wild macula lutea basket fish；
(2) it is lossless to catch the selection for grabbing device
The cylindric cylinder mould 110 for grabbing device including a top closing bottom opening is caught, the bottom of the cylinder mould 110 connects water storage
Fish back box 120, size and shape and the open-topped size of water storage fish back box 120 of the bottom opening of the cylinder mould 110
And shape is consistent, the cylinder mould 110 be provided with one from the dictyosome of the cylinder mould 110 to the cylinder mould 110 inside taper into
Half elliptic enters fish passage 111, it is described enter the bottom of fish passage 111 set a food calling platform 130.
Specifically, the shape of cylinder mould 110 is not limited only to cylindrical shape, alternatively cuboid or square shape；
Specifically, the food calling platform 130 is provided with elastic stainless steel bar or clip 131 to fixed bait.
Specifically, it is described enter the bottom of fish passage 111 be located at the cylinder mould 110 and water storage fish back box 120 is connected
In plane.But not limited to this, it is described enter fish passage 111 also can be located at the top and bottom of cylinder mould 110 between other positions.
Specifically, it is described enter fish passage 111 height be the 1/3 to 1/2 of the height of the cylinder mould 110.
Specifically, the bottom of the water storage fish back box 120 includes a fixed plate 121 and a portable plate 122, the fixation
Plate 121 is connected with the portable plate 122 by hinge 123, and the portable plate 122 is provided with one first drawstring 140, and described first
The other end of drawstring 140 extends to the over top of the cylinder mould 110 through inside the cylinder mould 110.Extend to the cylinder mould 110 to push up
The end of the first drawstring 140 above portion connects a draw ring 141, and the aperture of the draw ring 141 is more than the mesh hole of the cylinder mould 110
Footpath, so that the draw ring 141 is outside the cylinder mould 110, to pull the pull-up portable plate 122 of the first drawstring 140 at any time.It is fixed
Plate 121 is not limited to 1 with the size of portable plate 122:1.
Specifically, the hinge 123 is elastic hinge.With during preventing from wild macula lutea basket fish from catching grabbing, portable plate 122
Wash open to the inside of cylinder mould 110 because of seawater surge, it is to avoid catch the basket fish for grabbing and escape.
Specifically, the edge of the portable plate 122 is provided with sealing ring 124.Sealing ring 124 can prevent water storage fish back box 120
In water spill after cylinder mould 110 goes out the water surface by lifting.
Specifically, the internal edge of water storage fish back box 120 is provided with fixed Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape
Part（It is not shown）.This part can be hook or tied rope, also can arrange several nylon in the alternate internal of water storage fish back box 120
Rope, is fixed on Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape on nylon rope with iron core binding band；The cloth in water storage fish back box 120
Put the natural veil that Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape can increase in back box, reduction be caught grab basket fish stress.
Specifically, the color of water storage fish back box 120 is black, brown, Lycoperdon polymorphum Vitt or navy blue, to reduce capture process
Middle light stress to the macula lutea basket fish that is caught.
Specifically, the material of the cylinder mould 110 is rustless steel, galvanized wire or wooden.But not limited to this.
Specifically, the top of the cylinder mould 110 is uniformly distributed at least two second drawstrings 150 to by the cylinder mould
110 fix and are suspended in water；Preferably, three second drawstrings 150 are set.Typically cylinder mould 110 is fixed on into marine net cage
In peripheral frame.
(3) catch and grab season with the selection of time
The wild macula lutea basket fry kind of the South China coastal is caught and grabs selection in 5-7 months；Wild macula lutea basket fish adult fish selects annual
Catch and grab；Wild macula lutea basket fish parent fish is selected in catch in 1-3 months and grabs；Catch and grab that selection of time is relatively low in water temperature, 17 points of dark-
20 points or the point of 5:00 AM -7；
The wild macula lutea basket fish mating period of the South China coastal is 3-5 months, therefore seed catches to grab and may be selected in 5-7 months；Into
Fish can catch and grab whole year, but May-September water temperature is high, and bait enriches, and macula lutea basket fish forage frequently, is easier to catch and grabs；Wild Huang
Speckle basket fish parent fish can be selected in catch in 1-3 months and grab, and fatten the egg-laying season because the season wild macula lutea basket fish is in, and parent fish ingests
Many, activity is big, easily catches and grabs.
Catch and grab selection of time in 17. -20 points or the point of 5:00 AM -7, because now water temperature is relatively low, dark, macula lutea basket
The stress of sub- fish is relatively small.
(4) transport of live fish
By above-mentioned steps（2）Described catching is grabbed device and is put into Shallow sea bay, and lossless catching is caught after wild macula lutea basket fish, by wild Huang
Speckle basket fish is temporarily supported in small-sized net cage, and a dark cover net is covered on net cage, shelters from personnel's operation, and off the net with rope in cover
Son uniformly hangs over Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape in net cage, increases veil, it is to avoid basket fish is crowded in subenvironment
In stress and cause restless and accelerate travelling；With fishing boat by it is temporary support net cage be dragged to bank harbour, with upper strata be permeable fishing net layer,
Lower floor is that the landing-spoon of fluid-tight plastic layer composition repeatedly reaps work in batches on a small quantity by the macula lutea basket fish in net cage is temporarily supported
Fish transport vehicle, being transformed on the transfer cask of the live fish carrier of similar temporarily foster net cage a dark cover net is covered, and shelters from people
Member's operation, and uniformly hang over Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape in transfer cask in cover rope off the net, increase veil,
Avoid basket fish it is crowded in subenvironment stress and cause restless and accelerate travelling.
The wild macula lutea basket fish of the present invention is lossless to catch the method for grabbing, and life habit, morphosiss according to macula lutea basket fish, takes the photograph
Food and behavioral characteristic, comprehensively catch and grab the selection in sea area, catch and grab the making of device, catch selection, the transportation of live fish for grabbing season and time
Deng technical step, make entirely to catch grab during macula lutea basket fish not from water, to reduce and grab the stress for causing because catching, while avoiding
Crowded and situation about stabbing each other.At present healthy wild macula lutea basket fish is difficult to catch the difficult problem grabbed to the method energy effectively solving, is
Macula lutea basket fish artificial breeding provides healthy and strong parent fish, meanwhile, the cultivation for macula lutea basket fish provides the seed of health, finally carries
High its culture benefit.
Catch catch in the method for grabbing grab device realize that process is as follows：Catch in marine placement cylinder mould 110 and grab wild macula lutea basket fish
Before, first on the coast or bait being fixed on food calling platform 130 on ship, the portable plate 122 for storing up the bottom of fish back box 120 by water is opened
By macro, such as Entermorpha, Gracilaria tenuistipitata, Alga Sgrgassi Enervess are suspended in cylinder mould 110 mouth, and the portable plate 122 that closes.Use the second drawstring
150 lift whole cylinder mould 110, be placed into it is marine, by the second drawstring 150 be fixed on marine float, net cage frame or hull week
Enclose, cylinder mould 110 is suspended in water, adjust the second drawstring 150, make cylinder mould 110 hang on certain depth of water, marine macula lutea basket
Fish is swum into inside cylinder mould 110, because the design for entering fish passage 111 is outer width naturally under the attraction of bait from fish passage 111 is entered
It is interior narrow, swim into after cylinder mould 110 after macula lutea basket fish, will be unable to turn round and swim out of.After certain hour, treat the trapping of cylinder mould 110 to necessarily
The macula lutea basket fish of quantity, the second drawstring 150 of lifting lifts cylinder mould 110, and cylinder mould 110 is left after the water surface, because bottom is deposited
Water storage fish back box 120, the macula lutea basket fish for grabbing that is caught will focus in water storage fish back box 120, will not be from water, and due to water
Storage fish back box 120 is the dark light-proof material such as black, brown, and is furnished with macro as veil, and macula lutea basket fish exists
Also will not produce in water storage fish back box 120 this subenvironment it is too big stress, by cylinder mould 110 from water extraction to purpose net cage or
Behind pond, water is stored up the portable plate of the bottom of fish back box 120 by the first drawstring 140 for the draw ring 141 at the top of pull-up cylinder mould 110
122 pull-ups, so that the basket fish and water in water storage fish back box 120 is flowed into together in purpose net cage or pond, so as to nothing
Complete catching for macula lutea basket fish with damaging grab and transport raising operation.
According to it is above-mentioned catch method of grabbing contrast it is traditional catch the method for grabbing, arrest result of the test as follows：
Explanation：The catching of the wild macula lutea basket fish of tradition is caught to grab device and lack the present invention in the method for grabbing and catches the water storage fish grabbed in device
Reduce in back box and back box be caught grab basket fish stress natural veil, such as Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape.Grab
The macula lutea basket fish being caught during catching is from water and crowded in cylinder mould bottom, cause macula lutea basket fish occur it is strong stress be anti-
Should, it is easily dead during water, it is crowded easily to stab each other in cylinder mould bottom.
The preferred embodiments of the present invention are the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every at this
Under the inventive concept of invention, the equivalent structure transformation made using description of the invention and accompanying drawing content, or directly/use indirectly
It is included in the scope of patent protection of the present invention in other related technical fields.
Claims (10)
1. a kind of wild macula lutea basket fish is lossless catches the method for grabbing, it is characterised in that comprise the following steps：
（1）Catch the selection for grabbing sea area
Select Shallow sea bay；, there is natural screening in the semi-open sea area of the 5-15m depth of waters, and sea area physical features is flat,
Silt quality and tide sea water unobstructed, the cm/s of ocean current flow velocity 20 ~ 50 of flowing, 18 ~ 28 DEG C of surface temperature, the mg/ of dissolved oxygen 6
More than L, the m of transparency 0.5 ~ 1.5, pH 7.2 ~ 8.5；
（2）It is lossless to catch the making for grabbing device
The cylindric cylinder mould for grabbing device including a top closing bottom opening is caught, the cylinder mould bottom connects water storage fish bottom
Box, the size and shape of the cylinder mould bottom opening is consistent with the open-topped size of water storage fish back box and shape, institute
State cylinder mould be provided with one from the dictyosome of the cylinder mould to the cylinder mould inside the half elliptic that tapers into enter fish passage, it is described enter
Fish channel bottom sets a food calling platform；
（3）Catch and grab season with the selection of time
The wild macula lutea basket fry kind of the South China coastal is caught and grabs selection in May-July；Wild catching for macula lutea basket fish adult fish grabs choosing
Select whole year to catch and grab；Wild macula lutea basket fish parent fish is selected in January-March and catches and grab；Catch, dark relatively low in water temperature of grabbing selection of time
17. -20 points or the point of 5:00 AM -7；
（4）The transport of live fish
By above-mentioned steps（2）Described catching is grabbed device and is put into Shallow sea bay, and lossless catching is caught after wild macula lutea basket fish, by wild Huang
Speckle basket fish is temporarily supported in small-sized net cage, and a dark cover net is covered on net cage, shelters from personnel's operation, and off the net with rope in cover
Son uniformly hangs over Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape in net cage, increases veil, it is to avoid basket fish is crowded in subenvironment
In stress and cause restless and accelerate travelling；With fishing boat by it is temporary support net cage be dragged to bank harbour, with upper strata be permeable fishing net layer,
Lower floor is that the landing-spoon of fluid-tight plastic layer composition repeatedly reaps work in batches on a small quantity by the macula lutea basket fish in net cage is temporarily supported
Fish transport vehicle, being transformed on the transfer cask of the live fish carrier of similar temporarily foster net cage a dark cover net is covered, and shelters from people
Member's operation, and uniformly hang over Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape in transfer cask in cover rope off the net, increase veil,
Avoid basket fish it is crowded in subenvironment stress and cause restless and accelerate travelling.
2. as claimed in claim 1 wild macula lutea basket fish is lossless catches the method for grabbing, it is characterised in that selection is having aquaculture net cage
The Shallow sea bay of distribution grabs sea area as catching.
3. as claimed in claim 1 or 2 wild macula lutea basket fish is lossless catches the method for grabbing, it is characterised in that on the food calling platform
Elastic stainless steel bar or clip are provided with to fixed bait.
It is 4. as claimed in claim 3 that wild macula lutea basket fish is lossless catches the method for grabbing, it is characterised in that it is described enter fish passage height
Spend for the 1/3 to 1/2 of the cylinder mould height.
5. as claimed in claim 1 wild macula lutea basket fish is lossless catches the method for grabbing, it is characterised in that the water stores up fish back box
Bottom include a fixed plate and a portable plate, the fixed plate with the portable plate by gemel connection, on the portable plate
One first drawstring is provided with, the first drawstring other end extends to the cylinder mould over top through inside the cylinder mould.
6. as claimed in claim 5 wild macula lutea basket fish is lossless catches the method for grabbing, it is characterised in that the hinge is elasticity conjunction
Page.
7. wild macula lutea basket fish as described in claim 5 or 6 is lossless to catch the method for grabbing, it is characterised in that the movable edges of boards
Edge is provided with sealing ring.
8. as claimed in claim 1 wild macula lutea basket fish is lossless catches the method for grabbing, it is characterised in that the water stores up fish back box
Internal edge is provided with the part of fixed Entermorpha, Alga Sgrgassi Enervess, Gracilaria tenuistipitata or sea grape.
9. as claimed in claim 1 wild macula lutea basket fish is lossless catches the method for grabbing, it is characterised in that the cylinder mould material is not for
Rust steel, galvanized wire or wooden.
10. as claimed in claim 1 wild macula lutea basket fish is lossless catches the method for grabbing, it is characterised in that wild macula lutea basket fish
The catching of adult fish grabs that selection is high in water temperature, and bait enriches, macula lutea basket fish forage frequently May-September.
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| CN115176770B (en) * | 2022-07-01 | 2023-06-13 | 中国水产科学研究院东海水产研究所 | Experimental device and experimental method for selectively fishing fish cage |
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