CN103210885B - Fishing device and fishing method for wild giant salamander resource investigation - Google Patents
Fishing device and fishing method for wild giant salamander resource investigation Download PDFInfo
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- CN103210885B CN103210885B CN201310140638.0A CN201310140638A CN103210885B CN 103210885 B CN103210885 B CN 103210885B CN 201310140638 A CN201310140638 A CN 201310140638A CN 103210885 B CN103210885 B CN 103210885B
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- giant salamander
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- rod iron
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Abstract
The invention discloses a fishing device and a fishing method for a wild giant salamander resource investigation. The giant salamander fishing device comprises a steel bar, a plurality of fishhooks which are used for placing baits and are arranged side by side, a fish wire which enables the fishhooks and the steel bar to be connected and a fixed pile which is connected with the steel bar. According to the fishing device and the fishing method for the wild giant salamander resource investigation, the structure is simple, the fishing effect to giant salamanders is good, harm to the giant salamanders is little, and the demand for the investigation of acquiring the resource quantity of the giant salamanders with different specifications in the wild environment is met.
Description
Technical field
The present invention relates to Resources of Megalobatrachus Davidianus research field, relate in particular and a kind ofly fish for device and catching method for the investigation of wild Resources of Megalobatrachus Davidianus amount.
Background technology
Giant salamander (Andrias davidianus), is commonly called as: the giant salamander, belong to Amphibia, Caudata, Cryptobranchidae, and be one maximum in existing Caudata, be the distinctive large-scale amphibian of China.Giant salamander is very ancient species, is " living fossil " that tellurian develops, has important scientific value at aspects such as research earth evolution, organic evolution, the changes of circumstances.In addition, giant salamander also has very high nutritive value and ornamental value, and giant salamander is described as again " living person's ginseng in water ".In recent years, due to the destruction of natural environment and illegally catch and kill, add the reasons such as giant salamander regeneration capacity is poor, wild Resources of Megalobatrachus Davidianus amount sharply declines, and faces the danger of resource exhaustion, and therefore China has classified giant salamander as national secondary endangered wild watching for animals.
In order to protect better this resource; the work of giant salamander enhancement releasing has been carried out in domestic multiple province; but; after increment is released, effect how; the unified standard of also not assessing at present, wherein maximum obstacle is exactly that the giant salamander in field is difficult for fishing for, and also just has no idea giant salamander quantity resource to investigate; patent publication No. is that the Chinese invention patent that CN102475583A, date of publication are 2012.05.30 discloses a kind of giant salamander fixator, but it is not suitable for fishing for the giant salamander in field.
Summary of the invention
The object of the invention is for the deficiencies in the prior art part, provide a kind of and fish for device and catching method for the investigation of wild Resources of Megalobatrachus Davidianus, it is simple in structure, easy to make, good to the fishing efficiency of giant salamander, injure littlely, met for the demand of obtaining the investigation of different size Resources of Megalobatrachus Davidianus amount in wild environment.
In order to solve the problems of the technologies described above, technical scheme of the present invention is as follows: a kind of device of fishing for for the investigation of wild Resources of Megalobatrachus Davidianus, comprises rod iron, for the fishing line of placing multiple fish hooks that are set up in parallel of bait, described fish hook is coupled together with described rod iron and the spud pile being connected with described rod iron.
After giant salamander enhancement releasing, how these being discharged to field giant salamander fishes for, and then carry out stock number investigation, it is a difficult problem in the industry always, giant salamander skin is thin, be easy to be subject to wound in the process of fishing for, and then bacteria infection threat to life, and its individuality is larger, major part, and large mouth has tooth can sting people, the ability of runing away extra-heavy, by land or underwater exercise comparatively quick, and the top of climbing is heavy, if adopting traditional fishing net fishes for, the line of fishing net easily damages giant salamander delicate skin, make its bacteria infection, serious can cause giant salamander death, and giant salamander after fishing for need to be put and returned field after detecting, and, giant salamander is hidden by day and come out at night, also be not easy to adopt fishing net to fish for, if adopting fishing rod fishes in the mode of fishing, one is that efficiency is low, need certain quantity because carry out resource investigation, the mode efficiency of fishing is too low, in addition, giant salamander is hidden by day and come out at night, the place of its existence mostly is mountain area, natural environment is poor, fish very difficult, the more important thing is, giant salamander is amphibian, by land or underwater exercise comparatively quick, large mouth has tooth can sting people, once misoperation, be easy to cause injury to personnel, the applicant is by repeatedly studying, after test, manufacture experimently out the device of fishing for of the present invention, it is good to the fishing efficiency of giant salamander, damage little, and do not need personnel installing on limit and guarding always when fishing for, also can in fishing for, not damage the skin of giant salamander, complete after Biological Detection, giant salamander can be put and returns field, do not affect its normal growth.
As preferably, described spud pile is connected with described rod iron by elastic rope, between described elastic rope and described rod iron, is provided with adjustable rope.
Adjustable rope can regulate length, structure can adopt common backpack strip or other known structures, it can determine length according to the actual requirements, make the distance between rod iron and spud pile suitable, ensure fishing efficiency, elastic rope has certain elasticity, can be in catching giant salamander, when giant salamander struggles, provide certain buffering, reduce the injury to giant salamander.
As preferably, every three of described fish hook is one group, and every group of fish hook model is followed successively by 17#, 9# and 5#.
The fish hook of different size, for the giant salamander of different sizes, improves and fishes for probability.
As preferably, described fishing line is the transparent fish silk thread of 250-300 pound.
Transparent fish silk thread, can improve fishing efficiency.
As preferably, described rod iron comprise have left screw, right screw middle rod iron, have and the left rod iron of the right double-screw bolt that described left screw matches and having and the right rod iron of the left double-screw bolt that described right screw matches.
Whole rod iron is divided into three parts, can determine as required length, in the time that the river course of fishing for is narrow, can just use middle rod iron, if wider, can select left rod iron or right rod iron, improves adaptability, ensures fishing efficiency.
As preferably, described adjustable rope comprise with described in the middle of the adjustable rope in a left side that matches of the adjustable rope in centre that is connected of rod iron and described left rod iron and and the adjustable rope in the right side that matches of described right rod iron.
As preferably, described elastic rope is connected with the adjustable rope in described centre by intermediate connecting ring, and described intermediate connecting ring cover has two collars that are connected with the adjustable rope in a described left side and right adjustable rope.
Utilize described giant salamander to fish for device and carry out the catching method that giant salamander is fished for, comprise the following steps:
A) choose sampled point; The selection intermountain streams that the water flows gently, periphery has Cave distribution or stone matter small stream beach are as sampled point;
B) fishing for device fixes; Rod iron is put into water, then spud pile is fixed on to bank;
C) obtaining of bait; In selected sampled point, fish for Forage fishes, then the Forage fishes of the work capturing is suspended on fish hook, after 24-48 hour, observe and whether have giant salamander to be hunted down;
D) sample acquisition; For the giant salamander capturing, first fish hook is taken together with giant salamander, then fish hook is taken out from giant salamander mouth with tweezers, and giant salamander oral cavity wound is carried out disinfection with Iodophor, then carry out associated biomolecule and learn and detect.
This catching method, fishing efficiency is good, and giant salamander injury is reduced to minimum, and the bait of catching at sampled point, living adopting, and has further increased and has fished for success rate.
As preferably, in described step a), sampled point water velocity is at 0.2-1.5m/s, depth of water 0.5-1.5m, water temperature 18-23 DEG C, water clarity >=50cm.
Under above-mentioned condition, be easy to catching of giant salamander.
As preferably, in described step c), described Forage fishes is light lip fish, loach, Kuan Qi Lap or small crucian.
Beneficial effect of the present invention is:
Of the present invention a kind of for the investigation of wild Resources of Megalobatrachus Davidianus fish for device and catching method, it is simple in structure, good to the fishing efficiency of giant salamander, injures littlely, has met for the demand of obtaining different size Resources of Megalobatrachus Davidianus amount investigation in wild environment.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is described further:
Fig. 1 is the structural representation of one embodiment of the invention.
In figure:
1-rod iron; 2-fish hook; 3-fishing line; 4-spud pile; 5-elastic rope; Adjustable rope under 6-; 7-intermediate connecting ring; The 8-collar.
Embodiment
The following stated is only preferred embodiment of the present invention, not scope of the present invention is limited.
Embodiment, see accompanying drawing 1, a kind of device of fishing for for wild Resources of Megalobatrachus Davidianus investigation, comprise rod iron 1, for placing multiple fish hooks that are set up in parallel 2 of bait, the fishing line 3 that described fish hook 2 is coupled together with described rod iron 1 and the spud pile 4 being connected with described rod iron 1, spud pile 4 is diameter 5cm, the steel column of length 20-30cm, its one end has tip, be used for inserting soil, spud pile 4 can be fixed fast, spud pile 4 is connected with elastic rope 5, elastic rope 5 length are 10m, diameter is 3-4cm, adjustable rope 6 between described elastic rope 5 and described rod iron 1, on rod iron 1, be fixed with connecting ring, fishing line 3 is arranged on connecting ring, be convenient to install, dismounting.
Fishing line 3 is the transparent fish silk thread of 250-300 pound, can bear enough large pulling force and not rupture, and prevents that giant salamander from runing away.Be fixed on fish hook on rod iron 12 for multiple, arranged side by side settings, each other apart from 10-15cm, and every three of fish hook 2 is one group, and every group of fish hook 2 models are followed successively by 17#, 9# and 5#, fish for probability to improve, rod iron 1 diameter is 1cm, length is 190cm, whole rod iron 1 is made up of three parts, rod iron 101 in the middle of ensureing, left rod iron and the right rod iron at rod iron 101 two ends, left and right in the middle of being screwed onto, middle rod iron 101 has left screw 101a, right screw 101b, left rod iron 102 has the right double-screw bolt 102a matching with described left screw 101a, right rod iron 103 has the left double-screw bolt 103a matching with described right screw 101b, right double-screw bolt 102a, left double-screw bolt 103a screw thread specification is M8, length 10-20cm, same, left screw 101a, the screw thread specification of right screw 101b is also M8, degree of depth 10-20cm, the 1.15-1.2 that middle rod iron 101 length are left rod iron and right rod iron length is doubly for good, fishing efficiency is good, better, the diameter of middle rod iron 101 is left rod iron and right rod iron diameter 1.15-1.2 times, in present embodiment, middle rod iron 101 length 70cm, left rod iron and right rod iron length are 60cm, such structure not only can be selected the length of rod iron 1 according to actual needs, when river course is narrow, 101 1 of rod irons in the middle of just adopting, in wider, select as required to install again left rod iron 102 and/or right rod iron 103, if river course is wider, can by by left rod iron 102 and right rod iron 103 to an inner rotary part, and then increase the length of whole rod iron 1, improve and fish for probability.
Described adjustable rope 6 comprise with described in the middle of the adjustable rope 602 in a left side that matches of the adjustable rope 601 in centre that is connected of rod iron 101 and described left rod iron 102 and and the adjustable rope 603 in the right side that matches of described right rod iron 103; Described elastic rope 5 is connected by the adjustable rope 601 in intermediate connecting ring 7 and described centre, described intermediate connecting ring 7 covers have two collars 8 that are connected with the adjustable rope 602 in a described left side and right adjustable rope 603, wherein, preferably left adjustable rope 602,1 one-tenth 30 ° of angle of right adjustable rope 603 and rod iron, middle adjustable rope 601, left adjustable rope 602 and right adjustable rope 603 are the nylon cotton rope of 200-300 pound, intermediate connecting ring 7, the collar 8 cross-sectional diameters are 1-1.5cm, intermediate connecting ring 7, the collar 8 external diameter 5-8cm.
Utilize giant salamander to fish for device and carry out the catching method that giant salamander is fished for, comprise the following steps:
A) choose sampled point; The selection intermountain streams that the water flows gently, water quality is limpid, periphery has Cave distribution or stone matter small stream beach are as sampled point, sampled point water velocity is at 0.2-1.5m/s, depth of water 0.5-1.5m, water temperature 18-23 DEG C, water clarity >=50cm, time is preferably chosen in dusk, wherein, taking depth of water 1.0m, water velocity 20 DEG C of 0.8m/s, water temperature as good;
B) fishing for device fixes; Rod iron 1 is put into water, rod iron 1 is sunk under water, and then spud pile 4 is fixed on to bank, the tip of spud pile 4, then regulates the length of adjustable rope 6 down, makes the distance between spud pile 4 and rod iron 1 suitable, is convenient to catch giant salamander;
C) obtaining of bait; In selected sampled point, fish for Forage fishes, described Forage fishes is light lip fish, loach, Kuan Qi Lap or small crucian, again the Forage fishes of the work capturing is suspended on fish hook 2, after 12-24 hour, observes and whether have giant salamander to be hunted down, wherein, taking 24 hours as good, time is too short, easily startles giant salamander, reduces and fishes for probability, overlong time, likely can cause damage to the giant salamander catching;
D) sample acquisition; For the giant salamander capturing, first fish hook 2 is taken together with giant salamander, then fish hook 2 is taken out from giant salamander mouth with tweezers, and giant salamander oral cavity wound is carried out disinfection with Iodophor, then carry out associated biomolecule and learn and detect, after detecting, giant salamander is put and returns field, do not affect its normal growth.
More than explanation is only explanation of the invention, make those of ordinary skill in the art's can completely implement this programme, but be not limitation of the present invention, those skilled in the art are reading after this specification and can make to the present embodiment the amendment that there is no creative contribution as required, and these are all not creative amendments.But as long as within the scope of claim of the present invention, be all subject to the protection of Patent Law.
Claims (8)
1. an employing carries out for the device of fishing for of wild Resources of Megalobatrachus Davidianus investigation the catching method that giant salamander is fished for, it is characterized in that: for the device of fishing for of wild Resources of Megalobatrachus Davidianus investigation, comprise rod iron (1), for the fishing line (3) of placing multiple fish hooks that are set up in parallel (2) of bait, described fish hook (2) is coupled together with described rod iron (1) and the spud pile (4) being connected with described rod iron (1); Described spud pile (4) is connected with described rod iron (1) by elastic rope (5), between described elastic rope (5) and described rod iron (1), is provided with adjustable rope (6); Catching method comprises the following steps:
A) choose sampled point; The selection intermountain streams that the water flows gently, periphery has Cave distribution or stone matter small stream beach are as sampled point;
B) fishing for device fixes; Rod iron (1) is put into water, then spud pile (4) is fixed on to bank;
C) obtaining of bait; In selected sampled point, fish for Forage fishes, then it is upper that the Forage fishes of the work capturing is suspended on to fish hook (2), after 24-48 hour, observes and whether have giant salamander to be hunted down;
D) sample acquisition; For the giant salamander capturing, first fish hook (2) is taken together with giant salamander, then fish hook (2) is taken out from giant salamander mouth with tweezers, and giant salamander oral cavity wound is carried out disinfection with Iodophor, then carry out associated biomolecule and learn and detect.
2. a kind of employing according to claim 1 carries out for the device of fishing for of wild Resources of Megalobatrachus Davidianus investigation the catching method that giant salamander is fished for, it is characterized in that: in described step a), sampled point water velocity is at 0.2-1.5m/s, depth of water 0.5-1.5m, water temperature 18-23 DEG C, water clarity >=50cm.
3. a kind of employing according to claim 1 carries out for the device of fishing for of wild Resources of Megalobatrachus Davidianus investigation the catching method that giant salamander is fished for, and it is characterized in that: in described step c), described Forage fishes is light lip fish, loach, Kuan Qi Lap or small crucian.
4. a kind of employing according to claim 1 carries out for the device of fishing for of wild Resources of Megalobatrachus Davidianus investigation the catching method that giant salamander is fished for, and it is characterized in that: every three of described fish hook (2) is one group, and every group of fish hook (2) model is followed successively by 17#, 9# and 5#.
5. a kind of employing according to claim 1 carries out for the device of fishing for of wild Resources of Megalobatrachus Davidianus investigation the catching method that giant salamander is fished for, and it is characterized in that: described fishing line (3) is the transparent fish silk thread of 250-300 pound.
6. carry out for the device of fishing for of wild Resources of Megalobatrachus Davidianus investigation the catching method that giant salamander is fished for according to a kind of employing described in claim 3 or 4 or 5, it is characterized in that: described rod iron (1) comprises having left screw (101a), the middle rod iron (101) of right screw (101b), have and the left rod iron (102) of the right double-screw bolt (102a) that described left screw (101a) matches and have the right rod iron (103) of the left double-screw bolt (103a) matching with described right screw (101b).
7. a kind of employing according to claim 6 carries out for the device of fishing for of wild Resources of Megalobatrachus Davidianus investigation the catching method that giant salamander is fished for, and it is characterized in that: described adjustable rope (6) comprise with described in the middle of the adjustable rope in a left side (602) that matches of the adjustable rope in centre (601) that is connected of rod iron (101) and described left rod iron (102) and and the adjustable rope in the right side (603) that matches of described right rod iron (103).
8. a kind of employing according to claim 7 carries out for the device of fishing for of wild Resources of Megalobatrachus Davidianus investigation the catching method that giant salamander is fished for, it is characterized in that: described elastic rope (5) is connected with the adjustable rope in described centre (601) by intermediate connecting ring (7), described intermediate connecting ring (7) cover has two collars (8) that are connected with the adjustable rope in a described left side (602) and right adjustable rope (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310140638.0A CN103210885B (en) | 2013-04-23 | 2013-04-23 | Fishing device and fishing method for wild giant salamander resource investigation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310140638.0A CN103210885B (en) | 2013-04-23 | 2013-04-23 | Fishing device and fishing method for wild giant salamander resource investigation |
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| Publication Number | Publication Date |
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| CN103210885A CN103210885A (en) | 2013-07-24 |
| CN103210885B true CN103210885B (en) | 2014-08-27 |
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| CN201310140638.0A Expired - Fee Related CN103210885B (en) | 2013-04-23 | 2013-04-23 | Fishing device and fishing method for wild giant salamander resource investigation |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106614272A (en) * | 2016-09-30 | 2017-05-10 | 贵州省正安县农业科技大鲵发展有限公司 | Breeding pond easy for fishing giant salamander |
| CN107045705B (en) * | 2017-01-19 | 2021-05-07 | 中国水产科学研究院珠江水产研究所 | Fishery fishing resource amount investigation method based on fish body length distribution frequency |
| CN108719222A (en) * | 2018-05-28 | 2018-11-02 | 合肥森印科技有限公司 | A kind of fishing tackle for the auto-angling that is not easy to break off relations |
| CN115956543A (en) * | 2022-07-15 | 2023-04-14 | 生态环境部南京环境科学研究所 | Fishing device and fishing method for wild giant salamander resource investigation |
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| US3435552A (en) * | 1966-06-27 | 1969-04-01 | L & H Mfg Co | Floatable trotline |
| CN2179696Y (en) * | 1993-08-31 | 1994-10-19 | 肇恒哲 | Group hook with floating fishing |
| KR200186668Y1 (en) * | 1999-12-30 | 2000-06-15 | 정연화 | Fishing tackle |
| WO2005067711A1 (en) * | 2004-01-20 | 2005-07-28 | Savewave B.V. | Method and apparatus for camouflaging fish bait to protect against catch of unwanted species, as well as fishing tackle with camouflaged bait |
| US20060230666A1 (en) * | 2005-04-18 | 2006-10-19 | Moffitt Patrick E | Method and apparatus for long line and recreational bait fishing |
| AU2005203594B1 (en) * | 2005-08-12 | 2006-02-02 | Ronald Vanderdrift | Multiple hook bait rig |
| JP3140792U (en) * | 2008-01-29 | 2008-04-10 | 成幸 中務 | Carp fishing hook |
| CN201640227U (en) * | 2010-04-13 | 2010-11-24 | 朱锟 | Device capable of paying off two fishing lines |
| CN101940196A (en) * | 2010-07-26 | 2011-01-12 | 杨志光 | Using method of suspended line fishing gear |
| CN102475583A (en) * | 2010-11-26 | 2012-05-30 | 兴山水木清华鲵业生物科技有限公司 | Giant salamander fixator |
| JP5270708B2 (en) * | 2011-03-18 | 2013-08-21 | 博子 中務 | Marine fishing rod device |
| CN202773812U (en) * | 2012-02-13 | 2013-03-13 | 张春平 | Flowing fishing device |
| CN202504066U (en) * | 2012-03-26 | 2012-10-31 | 朱培池 | Automatic fishing rod |
| CN203219826U (en) * | 2013-04-23 | 2013-10-02 | 浙江省淡水水产研究所 | Fishing device for survey of wild giant salamander resources |
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