CN102960278A - Catching net cage for purse net aquiculture - Google Patents
Catching net cage for purse net aquiculture Download PDFInfo
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- CN102960278A CN102960278A CN2012104889665A CN201210488966A CN102960278A CN 102960278 A CN102960278 A CN 102960278A CN 2012104889665 A CN2012104889665 A CN 2012104889665A CN 201210488966 A CN201210488966 A CN 201210488966A CN 102960278 A CN102960278 A CN 102960278A
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- etting
- net cage
- fish
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- fishing
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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
The invention discloses a catching net cage for purse net aquiculture, which is characterized in that the catching net cage comprises a barrel-shaped frame, a classification gate and a netting, wherein the classification grate is arranged on the side of the frame and consists of a plurality of grids in parallel; gaps for fish less than certain body width escaping from the net cage are formed among the grids; the netting comprises a first netting, a second netting and a third netting; the first netting and the second netting are arranged at the top and bottom of the frame; and the third netting is arranged on the side face of the frame by an opening-closing mechanism in an opening and closing manner. Compared with the prior art, the net cage has the advantages that the net cage adopts an opening-closing device to catch large fish and release small fish according to the relation between the weight and body width of the fish and the fish evading behavior, and the fish can be classified while the catching is finished.
Description
Technical field
The present invention relates to a kind of net cage of fishing for, this fishes for net cage can be applied to fishing in the seining cultivation.
Background technology
It is as follows that existing purse seine is fished for process: at first in the impact that is to a certain degree adding around the seine net, the shoal of fish is caught up with edge from purse seine; Then close the engine of ship, throw in the fresh bait of fish happiness food, lure collection to the harvesting position of appointment fish, meanwhile, with draw in the net lightly along the net wall around put down, treat that most fish attracted to the position of appointment, assigned address is drawn in the net in towing lentamente, make fish be enclosed in the harvesting position of appointment, then utilize diddle-net to catch to ship.The classification of fish is processed after the harvesting.Utilize the harvesting hierarchy system of purse seine that fish is carried out the classification processing aboard ship, this machine classification is wanting the fish of classification to slide to the tilted-putted hierarchy system that the adjacent grid spacing is increased to the bottom gradually by the top via a funnel, the characteristics that this system utilizes fish to glide under the effect of self gravitation, make the fish of small dimension can pass through from level to level grid, the fish of large specification is after can not passing through certain grade of grid, along this grid through leading the fish groove toward lower slider, final this rank that arrives is received lymphogranuloma inguinale, the fish less than this grade Grill space then arrives the next stage grid by this grade grid, as not passing through, then arrive corresponding receipts lymphogranuloma inguinale along leading accordingly the fish groove, down landing separates fish at last fully successively.This kind hierarchy system processing speed is fast and reduce fish do not contact the death that water causes because of long-time when classification.But the obvious more complicated of above process is difficult to operation, and, to fish for and draw in the net in the process to the easy injury of fish, quality is caught in impact, and it is dried up too early not reach the fish of Catchable size, impact is further formed.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of seining cultivation with fishing for net cage for the above-mentioned state of the art.
Another technical problem to be solved by this invention is to provide a kind of classification to be easy to seining cultivation with fishing for net cage for the above-mentioned state of the art.
Another technical problem to be solved by this invention provides a kind of easy to operate seining cultivation with fishing for net cage.
Another technical problem to be solved by this invention provides a kind of catching and stays greatly little seining cultivation with fishing for net cage.
The present invention solves the problems of the technologies described above the technical scheme that adopts: a kind of seining cultivation is with fishing for net cage, it is characterized in that comprising framework, classification grid and the etting of tubular, aforementioned classification grid are located at frame facet and are formed side by side by a plurality of grids, have between the aforesaid grid for fleeing from the gap of net cage less than certain wide fish of body, aforesaid etting comprises the first etting, the second etting and the 3rd etting, aforesaid the first etting and the second etting are located at respectively frame roof and bottom, and aforesaid the 3rd etting is by being located to folding frame facet with mechanism for opening/closing.
Described the 3rd etting comprises first module etting and second unit etting, described mechanism for opening/closing can comprise slide fastener, pulling buckle and pull rope, aforesaid slide fastener is two and is located at respectively the first module etting and second unit etting side, described pulling buckle is connected as a single entity aforesaid two slide fasteners and can moves up and down to realize that folding between first module etting and the second unit etting, aforesaid pull rope are connected in also can drive pulling buckle on the pulling buckle and move up and down.
Described grid is by connecting line and be sheathed on the sleeve pipe that can freely rotate on the connecting line and form.Sleeve pipe 32 can rotate freely, and can eliminate in the classification process damage to the fish body fully
Be further to improve entrapping function, have on described the first etting and be funnel shaped trapping mouth.The inboard of described framework is provided with the articles holding table that annular arranges for decoy, and this articles holding table has the net sheet to be made.
As preferably, framework is formed by the circular hollow steel-pipe welding.
Compared with prior art, the invention has the advantages that: adopt headstock gear, utilize the wide relation of fish body weight and body and fish avoidance behaviour, make the wide fish less than classification grid grid spacing of body by the classification grid, be trapped in the net cage and body is wider than the fish that equals classification grid grid spacing, fish for, catch and put greatly little purpose thereby reach classification.The wide little individual fish less than classification grid grid spacing of body can be swum out of by grid like a cork, and body is wider than the large individual fish of separate gate spacing and then stays in the net cage.Grill space is different, the identical separate gate of size is installed on the removable fixing Hierarchical Network in addition, can satisfy the multi-stage separation of multiple fish.Overall structure is simple, makes easily, and processing ease.
Description of drawings
Fig. 1 is the example structure schematic diagram.
Fig. 2 is the decomposition texture schematic diagram behind removal the 3rd etting among Fig. 1.
Fig. 3 is the decomposition texture schematic diagram of the 3rd etting and framework.
Fig. 4 is the structural representation of the 3rd etting when opening.
Fig. 5 is the structure for amplifying schematic diagram of grid.
State diagram when Fig. 6 is the embodiment operation.
Embodiment
Below in conjunction with embodiment and comparative example the present invention is described in further detail.
Such as Fig. 1 ~ shown in Figure 4, fish for net cage and comprise framework 1, classification grid and the etting of tubular, the classification grid are located at the side of framework 1 and are formed side by side by a plurality of grids 3, have between the grid 3 for fleeing from the gap of net cage less than certain wide fish of body, etting comprises the first etting 21, the second etting 22 and the 3rd etting 23, the first etting 21 and the second etting 22 are located at respectively framework 1 top and bottom, and the 3rd etting 23 is by being located to folding framework 1 side with mechanism for opening/closing.Whole framework 1 in the present embodiment all adopts hollow steel pipe to be welded, and the upper and lower opening of framework 1 is circular.
As shown in Figure 3, the 3rd etting in the present embodiment is two, lay respectively at framework 1 both sides, every the 3rd etting 23 comprises first module etting 231 and second unit etting 232, mechanism for opening/closing comprises slide fastener 41, pulling buckle 42 and pull rope 43, slide fastener 41 is two and is located at respectively first module etting 231 and second unit etting 231 sides, pulling buckle 42 is connected as a single entity two slide fasteners 41 and can moves up and down to realize folding between first module etting 231 and the second unit etting 232, pull rope 43 is connected on the pulling buckle 42 and can drives pulling buckle 42 and moves up and down, and the slide fastener 41 in the present embodiment adopts sews up the steel work.
As shown in Figure 5, grid 3 is by connecting line 31 and be sheathed on the sleeve pipe 32 that can freely rotate on the connecting line and form, and sleeve pipe 32 has long and short.Adopt flexible connection mode in the design, each section sleeve pipe 32 that forms the classification grid can be rotated freely, therefore, can eliminate in the classification process damage to the fish body fully.It is 1.45g/m3 that sleeve pipe 32 adopts pvc pipe density, its density ratio seawater is bigger, more moderate, and have the advantages such as smooth surface, intensity are higher, seawater corrosion resistance, sleeve pipe 32 as adopt metal material, because matter is heavy, limited the size of classification grid surface areas, be difficult to make fish to swim out of easily the classification grid, and can have caused operational difficulty, in addition because its rough surface easily causes the damage of fish body.As about the about 0.95g/m3 of the density that adopts polyvinyl piping materials, less than the proportion of water, in water, easily float during nature, thereby the classification grid can not well be opened, reduced accordingly the area of classification grid.
In conjunction with shown in Figure 2, have on the first etting 21 and be funnel shaped trapping mouthfuls 211.The inboard of framework 1 is provided with the articles holding table 5 that annular arranges for decoy, and this articles holding table 5 has the net sheet to be made.
As shown in Figure 6, during use, fish for the bait that has fish happiness food on the articles holding table 5 of net cage 10, fishing boat 100 utilizes crane will fish for net cage 10 and is transported to harvesting position in the purse seine 101, open the 3rd etting 23, then will fish for net cage 10 with crane and winch to the harvesting water surface, and slow decreasing is until fish for the top of net cage 10 and just flush with the water surface.When in fishing for net cage 10, luring the shoal of fish of collection to reach certain density, utilize headstock gear to close rapidly to fish for the 3rd etting of net cage 10 to close, then carry on slowly with crane and fish for net cage 10, in the process of carrying, the classification grid carry out the classification processing to the fish of harvesting, so that the fish of harvesting meet the requirement of Catchable size, when fishing for after net cage 10 mentions fishing boat 100, slowly put into the live fish hold of filling with seawater fishing for net cage 10, the pulling buckle 42 in the headstock gear of net cage 10 sides is fished in utilization, opening enclosed imports the fish of fishing in the cabin.
Claims (6)
1. a seining cultivation is with fishing for net cage, it is characterized in that comprising framework, classification grid, headstock gear and the etting of tubular, aforementioned classification grid are located at frame facet and are formed side by side by a plurality of grids, have between the aforesaid grid for fleeing from the gap of net cage less than certain wide fish of body, aforesaid etting comprises the first etting, the second etting and the 3rd etting, aforesaid the first etting and the second etting are located at respectively frame roof and bottom, and aforesaid the 3rd etting is by being located to folding frame facet with mechanism for opening/closing.
2. seining cultivation according to claim 1 is with fishing for net cage, it is characterized in that described the 3rd etting comprises first module etting and second unit etting, described mechanism for opening/closing comprises slide fastener, pulling buckle and pull rope, aforesaid slide fastener is two and is located at respectively the first module etting and second unit etting side, described pulling buckle is connected as a single entity aforesaid two slide fasteners and can moves up and down to realize that folding between first module etting and the second unit etting, aforesaid pull rope are connected in also can drive pulling buckle on the pulling buckle and move up and down.
3. seining cultivation according to claim 1 is characterized in that described grid by connecting line and is sheathed on the sleeve pipe that can freely rotate on the connecting line forming with fishing for net cage.
4. seining cultivation according to claim 1 is with fishing for net cage, it is characterized in that having on described the first etting being funnel shaped trapping mouthful.
5. seining cultivation according to claim 1 is characterized in that with fishing for net cage the inboard of described framework is provided with the articles holding table that annular arranges for decoy, and this articles holding table has the net sheet to be made.
6. seining cultivation according to claim 1 is characterized in that with fishing for net cage described framework is formed by the circular hollow steel-pipe welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210488966.5A CN102960278B (en) | 2012-11-26 | 2012-11-26 | Catching net cage for purse net aquiculture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210488966.5A CN102960278B (en) | 2012-11-26 | 2012-11-26 | Catching net cage for purse net aquiculture |
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| CN102960278A true CN102960278A (en) | 2013-03-13 |
| CN102960278B CN102960278B (en) | 2014-09-03 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104938439A (en) * | 2015-05-28 | 2015-09-30 | 浙江海洋学院 | Fishing net for enclosure culture |
| CN105432512A (en) * | 2014-09-01 | 2016-03-30 | 耿泽平 | Protective net applied to sea cucumber culture |
| CN107318729A (en) * | 2017-09-04 | 2017-11-07 | 来安县天绿生态农业科技有限公司 | A kind of fish culture box |
| CN111387113A (en) * | 2019-09-12 | 2020-07-10 | 浙江海洋大学 | Intelligent device for fishing deep-sea purse net cultured fishes |
| CN112273285A (en) * | 2020-11-03 | 2021-01-29 | 浙江海洋大学 | Double-layer aquaculture purse seine with cleaning device |
| CN112568197A (en) * | 2020-12-09 | 2021-03-30 | 浙江海洋大学 | Open-air gathering structure of east sea large yellow croaker |
| CN113575483A (en) * | 2021-09-01 | 2021-11-02 | 哈尔滨工业大学（威海） | Sweep net structure and cylinder mould |
| CN113615621A (en) * | 2021-08-30 | 2021-11-09 | 中国水产科学研究院东海水产研究所 | Method for grading and catching cultured fishes |
| CN114009407A (en) * | 2021-11-09 | 2022-02-08 | 中国海洋大学 | Automatic catching device for deep water live fish with different specifications |
| CN115211410A (en) * | 2022-08-30 | 2022-10-21 | 四川农业大学 | Underwater grading fishing device and method for small-sized culture fishpond |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105432512A (en) * | 2014-09-01 | 2016-03-30 | 耿泽平 | Protective net applied to sea cucumber culture |
| CN104938439B (en) * | 2015-05-28 | 2017-05-17 | 浙江海洋学院 | Fishing net for enclosure culture |
| CN104938439A (en) * | 2015-05-28 | 2015-09-30 | 浙江海洋学院 | Fishing net for enclosure culture |
| CN107318729A (en) * | 2017-09-04 | 2017-11-07 | 来安县天绿生态农业科技有限公司 | A kind of fish culture box |
| CN111387113A (en) * | 2019-09-12 | 2020-07-10 | 浙江海洋大学 | Intelligent device for fishing deep-sea purse net cultured fishes |
| CN112273285B (en) * | 2020-11-03 | 2022-03-01 | 浙江海洋大学 | Double-layer aquaculture purse seine with cleaning device |
| CN112273285A (en) * | 2020-11-03 | 2021-01-29 | 浙江海洋大学 | Double-layer aquaculture purse seine with cleaning device |
| CN112568197A (en) * | 2020-12-09 | 2021-03-30 | 浙江海洋大学 | Open-air gathering structure of east sea large yellow croaker |
| CN113615621A (en) * | 2021-08-30 | 2021-11-09 | 中国水产科学研究院东海水产研究所 | Method for grading and catching cultured fishes |
| CN113575483A (en) * | 2021-09-01 | 2021-11-02 | 哈尔滨工业大学（威海） | Sweep net structure and cylinder mould |
| CN113575483B (en) * | 2021-09-01 | 2022-09-13 | 哈尔滨工业大学（威海） | Sweep net structure and cylinder mould |
| CN114009407A (en) * | 2021-11-09 | 2022-02-08 | 中国海洋大学 | Automatic catching device for deep water live fish with different specifications |
| CN114009407B (en) * | 2021-11-09 | 2022-07-01 | 中国海洋大学 | Automatic catching device for deep water live fish with different specifications |
| CN115211410A (en) * | 2022-08-30 | 2022-10-21 | 四川农业大学 | Underwater grading fishing device and method for small-sized culture fishpond |
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| CN102960278B (en) | 2014-09-03 |
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Effective date of registration: 20160118 Address after: Shu Road Aojiang town Pingyang County Zhejiang city Wenzhou province 325401 Patentee after: Pingyang County Blue seazan Seafood Development Co. Ltd. Address before: 316111 Putuo Institute of science and technology, Datong Road, Zhujiajian, Zhejiang, Zhoushan, No. 127, Patentee before: Zhejiang Ocean University |