CN104126553A - Collecting net - Google Patents
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- CN104126553A CN104126553A CN201410398512.8A CN201410398512A CN104126553A CN 104126553 A CN104126553 A CN 104126553A CN 201410398512 A CN201410398512 A CN 201410398512A CN 104126553 A CN104126553 A CN 104126553A
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Abstract
The invention provides a collecting net. The collecting net comprises a net head, a net bag and a net rod just like an ordinary collecting net, and further at least comprises one or more of a wear-resistant frame, an inner container net, an outer net cover and a quantitative frame.
Description
Technical field
The present invention relates to a kind of aquatile sampling apparatus, relate in particular to the collection net of a kind of inland waters zoobenthos.
Background technology
Zoobenthos (Zoobenthos, Benthic animals) be the important monoid of Freshwater ecosystems, mainly refer to that the whole or most of the time of the history of life moves in the aquatic animal group of water bottom, generally comprise aquatic annelids, aquatic mollusk, crustacean and aquatic insect.The object of zoobenthos investigation is to understand species composition, branch and the averag density to zoobenthos in water body unit are of zoobenthos in water body and biomass and makes comparisons and estimate reliably, thereby for the index of putting in a suitable place to breed of demersal fishes in water body provides certain foundation, can also comment by these survey datas the pollution level of water body.
In the time gathering, analyze zoobenthos, D-type net is a kind of very effective zoobenthos sampling instrument, it not only can carry out qualitative collection, and but also can substitute to a certain extent rope uncle net and carry out quantitative collection, can also be used in conjunction with the inferior bottom sampler of Peter simultaneously, the bed mud that the inferior bottom sampler collection of Peter is come up is sieved and washed, to obtain zoobenthos, therefore it is a kind of widely used sampling instrument in zoobenthos gathers.
On structure composition, as shown in Figure 1, existing D-type net is generally made up of net 2, the string bag (body) 3 and net bar 1, the harder materials such as that net 2 is generally is wooden, plastic material or metal material are made, surround closed frame shape by straight base and dual-side, be connected with net bar 1 in dual-side joint.The string bag 3 is generally circular cone or bag-shaped, conventionally adopts cotton synthetic fibre material, to collect and filter zoobenthos.When the string bag 3 of D-type net is connected with net 2, normally by the material of string bag oral area with the mode of the parcel net 2 of reeling, and then be engaged in it 3, the string bag by the fixed form such as sewing up or bonding, thereby the string bag 3 be fixed on net 2.
According to physical condition, conventionally select the bank of lake, reservoir to sample, and sampled point is as far as possible cobble is more or Aquatic Higher Plants is intensive or submerged plant is abundant phytal zone or silt bottom bank, and general each sampled point to repeatedly be sampled.When actual acquisition, hand-held net bar 1, will net a 2 deep bottom, gather operation with actions such as " thorn ", " copying ", " scraping ".Wherein, " thorn " and " copying " refers generally to the medium-and-large-sized water plants in area of slack water and tends to occupy very large-area habitat, during to this area sampling, and can be by net 2 bottom of directly thrusting aquatic macrophyte, along its direction of growth, net 2 is moved on shake water plants limit in limit; Or in the time of hydrostatic area sampling, substrate is stirred with pin, now with net head, the zoobenthos being suspended in water layer is copied in the string bag 3." scrape " and refer generally in the time of soft substrate, make net 2 be close to river bed, and promotion net 2 reach, certain thickness river bed substrate is all scraped in body, in the time that substrate is cobble substrate, make net 2 be close to river bed, substrate and the zoobenthos of certain area before network interface are all adopted in body with spades or creeper.
In the time using D-type net to sample, in the time that substrate is cobble, a large amount of cobbles can enter in the string bag, in follow-up zoobenthos sort process, need to first the cobble of large be sorted away one by one in bucket, otherwise be unfavorable for the stirring to substrate in bucket, this process is comparatively loaded down with trivial details time-consuming, and meanwhile, a large amount of cobbles enter in the string bag, to the string bag to pull active force larger, also can reduce the service life of the string bag.
In addition, when tow D-type net at the bottom, the string bag can cause with the bottom friction wearing and tearing of the string bag, the string bag that collection thing has particularly been housed produces comparatively serious friction with the bottom under the Action of Gravity Field that gathers thing, particularly in the time that the bottom is cobble, the wearing and tearing of the string bag are even more serious, can greatly reduce the service life of the string bag.
In addition, in the time sampling in the mode such as " thorn ", " scraping ", comparatively serious to being wound in the string bag fret wear at a net base place, easily reduce service life of the string bag.
In addition, using D-type net to carry out the quantitative sampling (sampling of specific water-bed area, be generally the quantitative area of 0.3m × 0.3m) time, because its neither one can be quantitative instrument, so in the time carrying out quantitative collection, sampling area can only artificially be estimated conventionally, impacts for the accuracy of collection result.
Summary of the invention
The inventor is participating in, after a large amount of actual zoobenthos collection activities, developing the present invention for the deficiency of above-mentioned D-type net.
For achieving the above object, a technical scheme of the present invention is a kind of net that gathers, and comprising: net head, surrounds the fixing closed frame shape of shape by straight base and dual-side; The string bag, the ground, at least described base of the described net head of its network interface part coiling is fixed on described net head relatively; And abrasionproof frame, be fixed on the described outside, base that is at least wound with the described string bag of netting head.
The described abrasionproof frame of above-mentioned collection net can be served as reasons and be had the circular tube shaped that the high-abrasive material of shape memory is made, and have along its length and inner gap can be inserted in in the base that is at least wound with the described string bag of described net head, described in crack that to make its cross section be most toroidals.
Above-mentioned collection net can also comprise inner bag net, have shape and described net head and match, can be embedded in an inner bag net head for described net head, and mesh is greater than mesh and the firmer inner bag body of the more described string bag of the described string bag; Described net head and/or described inner bag net head are provided with connector, and described inner bag net head can be fixed or semifixed in described net head relatively.
Above-mentioned collection net can also comprise outer etting, be enclosed within the outside of the described string bag outward, relatively be fixed on described net head by being located at the connector of its network interface part and/or described net head, mesh is more than or equal to the mesh of the described string bag, and at least it uses the material that the part by water-bed side is better than the described string bag by wearability when state to form.
Above-mentioned collection net can also comprise quantitative frame, be formed U-shaped, the two ends of its U-shaped opening are respectively by defaulting in the base of these two ends and/or described net head and the connector of dual-side angle is connected in described net head, thereby are encircled into the fixing acquisition zone of area with the described base of described net head.
By technique scheme, collection net of the present invention can have respectively or simultaneously one or more of following technique effect:
(1) preventing from entering the weight such as cobble that gathers net causes undue pullling to the string bag and makes the string bag damaged or reduce service life;
(2) the protection string bag 3, make its not with water-bed direct friction, effectively extend service life of the string bag.
(3) protection is wound on the string bag notch portion on net head, makes it not because the wearing and tearing in using reduce service life.
(4) in the time of quantitative collection, improved the precision that gathers net quantitative collection.
Brief description of the drawings
Fig. 1 is the structural representation of the D-type net of prior art.
Fig. 2 is the structural representation of the D-type net with inner bag net of the embodiment of the present invention 1, (a) of Fig. 2 is the structural representation of the net body of the D-type net of embodiment 1, (b) of Fig. 2 is the structural representation of the inner bag net of the D-type net of embodiment 1, and (c) of Fig. 2 is the schematic diagram of the assembling mode of inner bag net and net body.
Fig. 3 is the structural representation of the D-type net of the outer etting of band of the embodiment of the present invention 2.
Fig. 4 is the structural representation of the D-type net with abrasionproof frame of the embodiment of the present invention 3.
Fig. 5 is the schematic sectional view in the A-A' direction cross section of Fig. 4.
Fig. 6 is another routine structural representation of the abrasionproof frame of the embodiment of the present invention 3.
Fig. 7 is the structural representation of the D-type net of the quantitative frame of band of the embodiment of the present invention 4.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.
Fig. 1 is the schematic diagram of the D-type net of prior art.As shown in Figure 1, existing D-type net is generally made up of net 2, the string bag (body) 3 and net bar 1, and net 2 surrounds closed frame shape by straight base and dual-side, and likeness in form " D " type, is connected with net bar 1 in dual-side joint.The string bag 3 is generally circular cone or bag-shaped, normally by oral area with the mode of the parcel net 2 of reeling, and then sew up or be bonded in it 3, the string bag, thereby be engaged in net 2.Below, the D-type net of the prior art, also referred to as net body, and is illustrated to embodiments of the invention based on this.
(embodiment 1)
As previously mentioned, in the time that the substrate of sampling site is cobble, a large amount of cobbles can enter in the string bag, in follow-up zoobenthos sort process, need to first the cobble of large be sorted away one by one in bucket, otherwise be unfavorable for the stirring to substrate in bucket, this process is comparatively loaded down with trivial details time-consuming, and meanwhile, a large amount of cobbles enter in the string bag, to the string bag to pull active force larger, also can reduce the service life of the string bag.For head it off, the inventor expects following technical scheme.
Fig. 2 is the structural representation of the D-type net with inner bag net of the embodiment of the present invention 1, (a) of Fig. 2 is the structural representation of the net body of the D-type net of embodiment 1, (b) of Fig. 2 is the structural representation of the inner bag net of the D-type net of embodiment 1, and (c) of Fig. 2 is the schematic diagram of the assembling mode of inner bag net and net body.
As shown in Fig. 2 (a), the D-type net of the present embodiment 1 comprises net body (net bar 1, net 2, the string bag 3), and near the top of net 2, i.e. net 2 and net bar 1 junction or its, the interior side-prominent hook 4 of direct net head 2, in addition, locate to be respectively provided with one at two base angles (angle of base and dual-side) of net 2 to side-prominent stop member 5 in net.Thus, hook 4 and two stop members 5 form triangular arrangement.
In addition,, as shown in Fig. 2 (b), inner bag net comprises inner bag net head 6 and inner bag body 7, the material that inner bag net head 6 is difficult for deformation by wooden, duroplasts or metal etc. is made, the shape of the net of its shape and D-type net 2 is basically identical, and undersized is in net 2, to be flush-mounted in net 2.The mesh of inner bag body 7 is greater than the mesh of the string bag 3, to can tackle larger cobble, water plants etc., but can not stop and needs the zoobenthos of sampling analysis to enter into the string bag 3 by the mesh of inner bag body 7.For improving the compactedness of inner bag body 7, can adopt the more solid materials such as wire netting, inner bag body 7 can be the basket of the such solid shape of draining basket, can be also the flexible net of soft pocket formula.
As shown in Fig. 2 (c), in the time that inner bag net is assemblied in to D-type net, to in inner bag body 7, be placed in the string bag 3, tangle the top of inner bag net head 6 by the hook 4 of net 2, two base angles difference engagings of inner bag net head 6 are in the stop member 5 at net 2 liang of base angles place, thus, its frame is chimericly semifixed in net 2, completes assembling.When actual use, inner bag net is along with the net of D-type net is static or push ahead, inner bag net because of inner bag net head 6 be hung on hook 4 and engaging in stop member 5, and can not drop into the string bag 3 inside, and the shape of inner bag net head 6 and net 2 match, are embedded in net 2, so the sample gathering can first fall into inner bag net, now bulky cobble etc. is stayed in inner bag net by inner bag net filtration, and the zoobenthos that volume is little and water plants enter the string bag 3 through the mesh of inner bag net.
Thus, D-type net being towed or is picked up along the bottom and when the sorting in later stage, the objects such as volume is large, the cobble of Heavy Weight are lived and can not pull the string bag 3 under Action of Gravity Field by the more solid inner bag string bag, thereby make the string bag 3 obtain certain protection.
In addition, can also as Fig. 2 (b) as shown in, on inner bag net head 6, handle be set, so that lifted inner bag net or be convenient to and the dislodging of netting 2.
In the above description, hook 4 and stop member 5 are to be loaded on the net 2 of D-type net, but be not limited to this, also can on inner bag net head 6, be provided with hook 4 and to the outstanding stop member 5 in inner bag net head 6 outsides, or hook 4 and stop member 5 be divided on net 2 and inner bag net head 6, to make inner bag net head 6 and to net 2 relative fixing.
In addition, inner bag net is also not limited to above-mentioned hook 4, stop member 5 with the build-up member of net 2, for example, can also adopt the various connectors such as clip, take-up strap, double buckle, as long as the inner bag net head of inner bag net can fix or semifixed in netting 2 relatively.
(embodiment 2)
As previously mentioned, when tow D-type net at the bottom, the string bag 3 can cause with the bottom friction wearing and tearing of the string bag 3, the string bag 3 that collection thing has particularly been housed produces comparatively serious friction with the bottom under the Action of Gravity Field that gathers thing, when water-bed cobble or rubble are when more, the wearing and tearing of the string bag 3 are even more serious, can greatly reduce the service life of the string bag 3.For head it off, the inventor expects following technical scheme.
Fig. 3 is the structural representation of the D-type net of the outer etting of band of the embodiment of the present invention 2.As shown in Figure 3, the D-type net of embodiment 2 comprises net body (net bar 1, net 2, the string bag 3) and outer etting 9.Net 2 is provided with multiple hooks 8 (shown in Fig. 3 of the present embodiment being 4) along its periphery, for tangling outer etting 9.Outer etting 9 is for example made up of more cheap or more wear-resisting materials such as coarse cloth, plastics or metals, its mesh is more than or equal to the mesh of the string bag 3, such as, can invalidly not lived by outer net pocket with the water and the foreign material (fine sand stone etc.) that make to filter out from the string bag 3.When assembling, outer etting 9 is coated to the string bag 3, then outer etting 9 is suspended on the hook 8 of net 2, make it relatively be fixed on net 2.
Thus, in the time that reality is used the D-type net of embodiment 2, because the string bag 3 outer cover have more cheap or more wear-resisting outer etting 9, therefore tow D-type net during at the bottom, the string bag 3 is subject to the protection of outer etting 9 and avoids wearing and tearing, can greatly extend the service life of the string bag 3.
In addition, outer etting 9 is hung over the string bag 3 outsides by 4 hooks that pass through shown in Fig. 3, but hook 8 quantity is obviously not limited to 4, as long as more than two, can make outer etting 9 relatively be fixed on to a certain extent net 2.In addition, hook 8 is not limited to be located on net 2, can be also that the network interface periphery of etting 9 outside has such hook, can also be that net 2 and outer net ginning outturn do not have hook 8.In addition, the connected mode that outer net clothing is fitted on net 2 is also not limited to hook, can also be the various connectors such as clip, take-up strap, double buckle, as long as can make outer etting 9 relatively be fixed on net 2.In addition, embodiment 2 China and foreign countries ettings 9 entirety are for being coated at identical material bag-shaped of the string bag 3, but are not limited to this, for example, can be also that only having by the latter half of water-bed side is wear-resistant material, and the first half is more cheap material, or there is no the first half.
(embodiment 3)
As previously mentioned, in the time using D-type net to sample in the mode such as " thorn ", " scraping ", to being wound in, to net the string bag fret wear at a base place the most serious, if this part breakage will have to change the whole string bag, easily reduces the service life of string bag entirety.For solving this technical problem, the inventor expects following technical scheme.
Fig. 4, Fig. 5, Fig. 6 are the structural representations of the D-type net with abrasionproof frame of the embodiment of the present invention 3, and wherein, Fig. 5 is the schematic sectional view in the A-A' direction cross section of Fig. 4.Compared with the D-type net of prior art, it is characterized in that, on net 2, abrasionproof frame 10 is housed.Abrasionproof frame 10 for example adopts the wear-resistant material such as metal or duroplasts, main establishes along the most easily the base part of wearing and tearing the occurring of net 2, and also can extend as required the lateral section that is set to net head.
As shown in Figure 4, the string bag 3 ground that clip this base of reeling between abrasionproof frame 10 and the base of net 2 are fixed on net 2, and thus, the outside of the string bag 3 on the base of abrasionproof frame 10 in the net 2 of reeling, protects this part string bag 3 not frayed.Now, preferably as shown in Figure 5, with respect to the plane at net 2 place, abrasionproof frame 10 is installed on net 2 in the slightly outstanding mode in opposition side to string bag place side,, the line that connects the center in the cross section on the base of the center in cross section of abrasionproof frame and net 2 is certain angle of inclination with respect to the plane at net 2 place, and preferably this angle is 45 degree.Thus; the direction of advance (upper direction in Fig. 5) of abrasionproof frame 10 in the time that net 2 uses and water-bed direction (left in Fig. 5 to) all protrude from the outside of the string bag 3 on the base of netting 2 of reeling, thereby can protect the string bag 3 in this two direction.In Fig. 5, omit the diagram of the string bag 3 that is clipped between abrasionproof frame 10 and the base of net 2 etc.
In addition, abrasionproof frame 10 is fixed on net 2 on the string bag 3 to the mode of the impact of the assembling of net 2 to reduce as far as possible, for example by multi-point welding or welding and fixed engagement on the base or side of net 2.
Fig. 6 illustrates another example of abrasionproof frame, this abrasionproof frame 11 is shape and net 2 half inclusion enclave that match, for example, in the time that the cross section of net 2 be circle, the pipe of abrasionproof frame 11 for cracking along its length, there is the material of shape memory by employing, when assembling, push cracking of abrasionproof frame 11 aside, the bottom of the net 2 that installs the string bag 3 is filled in this gap, make abrasionproof frame 11 because shape memory resiles, thereby partly wrap net 2 bottom that the string bag 3 is housed.The material that what is called has shape memory refers to, when member is subjected to certain external force and occurs after deformation, can have the material of the potential energy recovering to original shape, such as rubber, elastic metallic etc.What is called is cracked, and is to instigate the cross sectional shape of abrasionproof frame 11 for mostly round.
(embodiment 4)
As previously mentioned, using existing D-type net to carry out the quantitative sampling (sampling of specific water-bed area, be generally the quantitative area of 0.3m × 0.3m) time, because its neither one can be quantitative instrument, so in the time carrying out quantitative collection, sampling area can only artificially be estimated conventionally, impacts for the accuracy of collection result.For head it off, the inventor expects following technical scheme.
Fig. 7 is the structural representation of the D-type net of the quantitative frame of band of the embodiment of the present invention 4.In Fig. 7, for ease of understanding, omit the diagram of the string bag 3.As shown in Figure 7, the D-type net of embodiment 4 is external except netting this, also comprise a dismountable quantitative frame 12, this quantitative frame 12 is U-shaped, and the two ends of its U-shaped opening have respectively hanging hole 14, in the time that needs carry out quantitative collection, the hanging hole of quantitative frame 12 14 can be hung on the net correspondence that establish in place, a 2 liang of base angles hook 13, the D-type net of quantitative this band frame 12 is being put into behind the bottom, made quantitative frame 12 be affixed on the bottom, quantitatively the base of frame 12 and net 2 is encircled into area and fixes (for example 0.09m
2) acquisition zone, thereby can accurately determine need gather area.
In addition, in above-mentioned, be to link up with 13 to be connected quantitative frame with the cooperation of hanging hole 14, but be not limited to this, for example also the two can be connected by modes such as hinged, riveted joints, quantitatively frame 12 can be detachable member, can be also the member that is fixed on net 2, in addition, according to the difference of connected mode, quantitatively frame 12 can be taking the base of net 2 as axle rotates with respect to net 2, also can relatively be fixed at an angle in advance net 2.
Above embodiment while collection taking zoobenthos conventional D-type net be illustrated as basis, but as long as having the collection net that similarly possesses net head, the string bag with D-type mesh-shaped, all applicable the present invention, for example, can also be applicable to right angle net, the triangulation network etc.In addition, above-described embodiment 1～4 has illustrated respectively the collection net with inner bag net, outer etting, abrasionproof frame, quantitative frame, but these several features can combine mutually, for example there is inner bag net, outer etting, abrasionproof frame, quantitative two or more of frame simultaneously, now, the technical scheme forming is by the relevant art effect that has individual features and bring simultaneously.
The above, only the preferred embodiments of the present invention, not the present invention is done to any pro forma restriction, although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, when can utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solution of the present invention, any simple modification of above embodiment being done according to technical spirit of the present invention, equivalent variations and modification, all belong to protection scope of the present invention.
(label declaration)
1, net bar, 2, net head, 3, the string bag, 4, hook, 5, stop member, 6, inner bag net head, 7, inner bag body, 8, hook, 9, outer etting, 10, abrasionproof frame, 11, abrasionproof frame, 12, quantitative frame, 13, hook, 14, hanging hole.
Claims (7)
1. gather a net, it is characterized in that, comprising:
Net head, surrounds the fixing closed frame shape of shape by straight base and dual-side,
The string bag, the ground, at least described base of the described net head of its network interface part coiling is fixed on described net head relatively, and
Abrasionproof frame, is fixed on the described outside, base that is at least wound with the described string bag of netting head.
2. collection net as claimed in claim 1, is characterized in that,
With respect to the plane at a described net place, described abrasionproof frame is slightly outstanding to the opposition side of described string bag place side, in at least described bottom side portion, the line that connects the center in cross section of described abrasionproof frame and the center in the cross section of described net head is certain angle of inclination with respect to the plane at a described net place.
3. collection net as claimed in claim 2, is characterized in that,
Described angle of inclination is 45 degree.
4. collection net as claimed in claim 1, is characterized in that,
Described abrasionproof frame is served as reasons and is had the circular tube shaped that the high-abrasive material of shape memory is made, and has along its length and inner gap can be inserted in in the base that is at least wound with the described string bag of described net head, described in crack that to make its cross section be most toroidals.
5. the collection net as described in any one of claim 1 to 4, is characterized in that, also comprises:
Inner bag net, has shape and described net head matches, can be embedded in the described inner bag net head of netting head, and mesh is greater than mesh and the firmer inner bag body of the more described string bag of the described string bag;
Described net head and/or described inner bag net head are provided with connector, and described inner bag net head can be fixed or semifixed in described net head relatively.
6. the collection net as described in any one of claim 1 to 4, is characterized in that, also comprises:
Outer etting, be enclosed within the outside of the described string bag outward, relatively be fixed on described net head by being located at the connector of its network interface part and/or described net head, mesh is more than or equal to the mesh of the described string bag, and at least it uses the part by water-bed side when state to be made up of the material more wear-resisting or more cheap than the described string bag.
7. the collection net as described in any one of claim 1 to 4, is characterized in that, also comprises:
Quantitatively frame, be formed U-shaped, the two ends of its U-shaped opening are respectively by defaulting in the base of these two ends and/or described net head and the connector of dual-side angle is connected in described net head, thereby are encircled into the fixing acquisition zone of area with the described base of described net head.
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| CN201410398512.8A CN104126553B (en) | 2014-08-13 | 2014-08-13 | Gather net |
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| CN201410398512.8A CN104126553B (en) | 2014-08-13 | 2014-08-13 | Gather net |
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| CN104126553A true CN104126553A (en) | 2014-11-05 |
| CN104126553B CN104126553B (en) | 2016-08-24 |
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| CN201410398512.8A Active CN104126553B (en) | 2014-08-13 | 2014-08-13 | Gather net |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108719218A (en) * | 2018-07-25 | 2018-11-02 | 佛山科学技术学院 | It is a kind of to be used to catch the fishing net that spoon refers to shrimp |
| CN109845706A (en) * | 2019-01-30 | 2019-06-07 | 中国科学院东北地理与农业生态研究所 | It sweeps and scrapes formula marsh wetland aquatic invertebrate collector and its application method |
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| CN201640219U (en) * | 2010-03-15 | 2010-11-24 | 吴光志 | Fish scoop |
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| CN102283181A (en) * | 2010-06-21 | 2011-12-21 | 沈卫 | Fishing device |
| CN203058127U (en) * | 2013-02-13 | 2013-07-17 | 杨成胜 | Telescopic anti-escape dip net with long handle |
| CN204104557U (en) * | 2014-08-13 | 2015-01-21 | 张�浩 | Gather net |
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| GB1330498A (en) * | 1970-11-20 | 1973-09-19 | Auger Accessories Ltd | Fish-landing nets |
| CN201640219U (en) * | 2010-03-15 | 2010-11-24 | 吴光志 | Fish scoop |
| CN102283181A (en) * | 2010-06-21 | 2011-12-21 | 沈卫 | Fishing device |
| CN201805816U (en) * | 2010-09-19 | 2011-04-27 | 许江 | Escape-proof fish take-up bag |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108719218A (en) * | 2018-07-25 | 2018-11-02 | 佛山科学技术学院 | It is a kind of to be used to catch the fishing net that spoon refers to shrimp |
| CN108719218B (en) * | 2018-07-25 | 2023-09-26 | 佛山科学技术学院 | Handsheet net for fishing spoon and finger shrimp |
| CN109845706A (en) * | 2019-01-30 | 2019-06-07 | 中国科学院东北地理与农业生态研究所 | It sweeps and scrapes formula marsh wetland aquatic invertebrate collector and its application method |
| CN109845706B (en) * | 2019-01-30 | 2024-02-20 | 中国科学院东北地理与农业生态研究所 | Sweeping and scraping type herbaceous marsh wetland aquatic invertebrate collector and application method thereof |
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| Publication number | Publication date |
|---|---|
| CN104126553B (en) | 2016-08-24 |
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