CN202232608U - Pool fishing tool for freshwater shrimp seeds - Google Patents
Pool fishing tool for freshwater shrimp seeds Download PDFInfo
- Publication number
- CN202232608U CN202232608U CN2011203855677U CN201120385567U CN202232608U CN 202232608 U CN202232608 U CN 202232608U CN 2011203855677 U CN2011203855677 U CN 2011203855677U CN 201120385567 U CN201120385567 U CN 201120385567U CN 202232608 U CN202232608 U CN 202232608U
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- net
- net cage
- shrimp
- tongue
- cage
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Abstract
The utility model discloses a pool fishing tool for freshwater shrimp seeds. The pool fishing tool for the freshwater shrimp seeds is characterized by comprising a seed collecting net cage and a shrimp expelling net, wherein the seed collecting net cage is provided with a bottom without a cover and is a cuboid, three sidewall nets of the seed collecting net cage are fixed, one short sidewall net is movable to form a net cage tongue, the net cage tongue is as wide and high as the net cage, a pull rope is arranged on the edge of the net cage tongue, and the net cage tongue can be overturned to be sunk into the bottom of a pool; the shrimp expelling net is a strip-shaped net sheet, the upper part of the strip-shaped net sheet is provided with buoys and is tighter, and the lower part of the strip-shaped net sheet is provided with weights and is looser; a high-direction side frame of the net cage tongue of the seed collecting net cage is movably and detachably connected with one end of the shrimp expelling net; and the sidewall nets of the seed collecting net cage and the strip-shaped net sheet of the shrimp expelling net are dense nets having the apertures within 0.2-0.25cm. Compared with a normal net-pulling fishing method, a method utilizing the pool fishing tool for the freshwater shrimp seeds, disclosed by the utility model, has the advantages of easiness, simpleness and convenience for operation, fewer required labors, lighter damage on shrimp seeds and capability of improving the survival rate of the shrimp seeds by more than 20%.
Description
Technical field
The utility model relates to shrimps and fishes for technology, particularly relates to a kind of design, assembling of freshwater shrimp seedling catching net.
Background technology
Freshwater shrimp, the formal name used at school Japanese macrobrachium supernbum (
Macrobrachium nipponense), belong to Arthropoda, Crustachia, Decapoda, Palaemonidae, pond crayfish genus.Be individual bigger a kind of shrimps in the fresh water shrimp, its fine and tender taste, delicious flavour, and the culture-cycle is short, and growth is fast, and economic worth is high, is the important shrimps in culture of China.At present, the whole nation has 21 provinces, cities and autonomous regions to carry out shrimp culture, and cultured area occupies first of fresh water shrimps.More than 20 ten thousand tons of shrimp culture annual productions, more than 100 hundred million yuan of annual value of production.Along with the continuous expansion of culturing scale, the improving constantly of intensification degree, it is more and more important that the large-scale production of freshwater shrimp seed just seems; Fishing for of freshwater shrimp seed is a big important step and the technical barrier in the large-scale production of freshwater shrimp seed; Because freshwater shrimp shrimp in autumn put in a suitable place to breed the time early July to early August, high temperature season at a time when this, water temperature Gao Shikeda in pond is more than 35 ℃; Add when the freshwater shrimp seedling grows to 2～3 centimetres and just begin to sink to the bottom, difficulty is fished for.As shown in Figure 1 with traditional pulling method, arrow carries out extensive shrimp seedling and fishes for used netting gear bottom line sinker requirement high for drawing in the net direction; Operation easier is big, and common 3335 square metres pond needs could operate more than 6 people; Not only workload is big, works that to catch efficient low, and is prone to bring a large amount of bed muds in the net into; The damage of prawn seedling is serious, presses for to find a kind of freshwater shrimp seedling pond catching method that damages easy and simple to handle, efficient, low.
Summary of the invention
The purpose of the utility model provides a kind of pond of freshwater shrimp shrimp seedling and fishes for instrument and catching method thereof.Through design, assembling and the use of freshwater shrimp seedling catching net, improve rising of shrimp seedling and catch rate, reduced the shrimp seedling damage in catching, reduce the labour intensity of fishing for.
The main technical schemes that realizes the utility model purpose is following:
Instrument is fished in a kind of pond of freshwater shrimp seedling, it is characterized in that: it comprises collection seedling net cage and catches up with the shrimp net, and is not with cover at the bottom of the said collection seedling net cage band; Be cuboid, three sidewall nets of said collection seedling net cage are fixed, and a short sidewall net is movable; Form the net cage tongue, the net cage tongue is wide wide identical with net cage, and is high quite high with net cage; Net cage tongue limit is provided with drag-line, but the overturning of net cage tongue is sunk at the bottom of the pond; The said shrimp net of catching up with is that the top is provided with the band shape net sheet that float bottom is provided with sinker, and it is looser that bottom is tightened in the top; Saidly catch up with shrimp to net that the high direction frame of an end and said collection seedling net cage net cage tongue end case flexibly connects and detachable; Said collection seedling net cage sidewall net is that the aperture is 0.2～0.25 centimetre a close net with catching up with shrimp net net sheet.
Preferably: long 10 meters of said collection seedling net cage, wide 3.5～4 meters, high 1.2 meters; The said shrimp net net sheet of catching up with is high 1.5 meters, and the distance between the float of top is about 20 centimetres, and said sinker is the iron chains of 6 millimeters of diameters, and length is 35～40 meters.
A kind of pond catching method of freshwater shrimp seedling comprises the steps:
(1) collection seedling net cage is provided with: the point midway that abuts against a long limit of collection seedling net cage on the long Bian Chi of the nursery pond ridge.At the bottom of the net cage tongue of collection seedling net cage is swung to the pond along the pond long side direction;
(2) catch up with shrimp net to connect: an end of catching up with the shrimp net to be arranged on one jiao of the collection seedling net cage open outer side, to catch up with one side that the shrimp net is equipped with float, near being to be the bottom of sinker with the iron chains at the bottom of the pond last;
(3) draw in the net to catch up with shrimp: haul and catch up with the other end of shrimp net to sweep a circle, the shrimp seedling is caught up with in the collection seedling net cage along nursery pond four limits;
(4) pack up net cage tongue close Set seedling net cage: when catching up with the shrimp net to move near collection seedling net cage opening, pack up gradually and catch up with the shrimp net, catch up with final stage the shrimp net to seal collection seedling net cage opening part temporarily, pull-up net cage tongue is removed to open and is caught up with the shrimp net, close Set seedling net cage then.
This seed shrimp seedling catching method and the common catching method that draws in the net are operated easily easy; The manpower that needs is less; General one 3335 square metres pond only needs 2～3 people just can operate, and common pulling method needs 5～6 people at least, so reduce by 50～120% workload than the common catching method that draws in the net.The damage of prawn seedling is also very light, and the survival rate that can improve the shrimp seedling is more than 20%.
Description of drawings
Fig. 1 fishes for instrument sketch map (catching up with the shrimp net to omit the net sheet) for the pond of freshwater shrimp seedling;
Fig. 2 is existing shrimp seedling catching method sketch map, and arrow is for drawing in the net direction;
Fig. 3 is the utility model shrimp seedling catching method sketch map, and arrow is for drawing in the net direction;
1, collection seedling net cage; 2, net cage tongue; 3, catch up with the shrimp net; 4, iron chains; 5, float; 6, drag-line; 7, the shrimp seedling draws in the net;
8, nursery pond.
Embodiment
Further the utility model is elaborated through specific embodiment below.
Embodiment 1:
Certain shrimp culture field, 3335 square metres of nursery pond areas.Use 1 10 meters * 4.0 meters * 1.2 meters in collection seedling net cage, long limit of net cage is parallel with long limit, pond and near long limit, pond, the point midway on collection seedling net cage 1 length limit in the pond.Collection seedling net cage 1 movable short side is that net cage tongue 2 is wide wide identical promptly 4.0 meters with net cage, high and net cage high quite (about 1.2 meters).Catching up with shrimp to net 3 is long 75 meters of two combinations, and the net sheet is high 1.5 meters, and the distance that the top float is 5 is 20 centimetres, and following fixing on it with Ф 6mm iron chains 4 made sinker, and by the method for above-mentioned introduction, 3 people draw in the net to fish for.First has netted the rate of catching 89%, and the shrimp shoot survival percent improves 25%.
Embodiment 2:
Certain shrimp culture family, 2000 square metres of nursery pond areas.Use 1 10 meters * 3.5 meters * 1.2 meters in collection seedling net cage, long limit of net cage is parallel with long limit, pond and near long limit, pond, the point midway on collection seedling net cage 1 length limit in the pond.The movable short side of collection seedling net cage is that net cage tongue 2 is wide wide identical promptly 3.5 meters with net cage, high and net cage high quite (about 1.2 meters).Catch up with shrimp to net long 65 meters of 3 two combinations, the net sheet is high 1.5 meters, and the distance that the top float is 5 is 20 centimetres, and following fixing on it with Ф 6mm iron chains 4 made sinker, and by the method for above-mentioned introduction, 3 people draw in the net to fish for.First has netted the rate of catching 91%, and the shrimp shoot survival percent improves 23%.
Embodiment 3:
Certain breed company, 6000 square metres of freshwater shrimp nursery pond areas.Use 1 10 meters * 4.0 meters * 1.2 meters in collection seedling net cage, long limit of net cage is parallel with long limit, pond and near long limit, pond, the point midway on collection seedling net cage 1 length limit in the pond.Collection seedling net cage 1 movable short side is that net cage tongue 2 is wide wide identical promptly 4.0 meters with net cage, high and net cage high quite (about 1.2 meters).Catch up with shrimp to net long 100 meters of 3 three combinations, the net sheet is high 1.5 meters, and the distance that the top float is 5 is 20 centimetres; Following fixing on it with Ф 6mm iron chains 4 made sinker, and by the method for above-mentioned introduction, 3 people draw in the net to fish for; First has netted the rate of catching 85%, and the shrimp shoot survival percent improves 27%.
Claims (2)
1. instrument is fished in the pond of a freshwater shrimp seedling, it is characterized in that: it comprises collection seedling net cage and catches up with the shrimp net, and is not with cover at the bottom of the said collection seedling net cage band; Be cuboid, three sidewall nets of said collection seedling net cage are fixed, and a short sidewall net is movable; Form the net cage tongue, the net cage tongue is wide wide identical with net cage, and is high quite high with net cage; Net cage tongue limit is provided with drag-line, but the overturning of net cage tongue is sunk at the bottom of the pond; The said shrimp net of catching up with is that the top is provided with the band shape net sheet that float bottom is provided with sinker, and it is looser that bottom is tightened in the top; Saidly catch up with shrimp to net that the high direction frame of an end and said collection seedling net cage net cage tongue end case flexibly connects and detachable; Said collection seedling net cage sidewall net is that the aperture is 0.2～0.25 centimetre a close net with catching up with shrimp net net sheet.
2. instrument is fished in the pond of a kind of freshwater shrimp seedling according to claim 1, it is characterized in that: long 10 meters of said collection seedling net cage, and wide 3.5～4 meters, high 1.2 meters; The said shrimp net net sheet of catching up with is high 1.5 meters, and the distance between the float of top is about 20 centimetres, and said sinker is the iron chains of 6 millimeters of diameters, and length is 35～40 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203855677U CN202232608U (en) | 2011-10-10 | 2011-10-10 | Pool fishing tool for freshwater shrimp seeds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203855677U CN202232608U (en) | 2011-10-10 | 2011-10-10 | Pool fishing tool for freshwater shrimp seeds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202232608U true CN202232608U (en) | 2012-05-30 |
Family
ID=46093939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203855677U Withdrawn - After Issue CN202232608U (en) | 2011-10-10 | 2011-10-10 | Pool fishing tool for freshwater shrimp seeds |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202232608U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102742556A (en) * | 2011-10-10 | 2012-10-24 | 中国水产科学研究院淡水渔业研究中心 | Pond fishing tool and fishing method for freshwater shrimp seeds |
| CN103782971A (en) * | 2012-11-01 | 2014-05-14 | 南京市水产科学研究所 | Pelteobagrus fulvidraco capturing method |
-
2011
- 2011-10-10 CN CN2011203855677U patent/CN202232608U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102742556A (en) * | 2011-10-10 | 2012-10-24 | 中国水产科学研究院淡水渔业研究中心 | Pond fishing tool and fishing method for freshwater shrimp seeds |
| CN102742556B (en) * | 2011-10-10 | 2014-04-02 | 中国水产科学研究院淡水渔业研究中心 | Pond fishing tool and fishing method for freshwater shrimp seeds |
| CN103782971A (en) * | 2012-11-01 | 2014-05-14 | 南京市水产科学研究所 | Pelteobagrus fulvidraco capturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20140402 |
|
| RGAV | Abandon patent right to avoid regrant |