CN102919215A - Method for efficiently trapping trachemys scripta elegans - Google Patents
Method for efficiently trapping trachemys scripta elegans Download PDFInfo
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- CN102919215A CN102919215A CN2012104340126A CN201210434012A CN102919215A CN 102919215 A CN102919215 A CN 102919215A CN 2012104340126 A CN2012104340126 A CN 2012104340126A CN 201210434012 A CN201210434012 A CN 201210434012A CN 102919215 A CN102919215 A CN 102919215A
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Abstract
The invention discloses a method for efficiently trapping trachemys scripta elegans. The method includes that smelling bait is fresh dried fish and fresh dried shrimps; vision bait is little alive freshwater fish and alive river shrimps; a trapping device comprises a cage with an externally covered net, a transparent inlet baffle board is respectively arranged at cage ports at two ends of the cage and hanged above the cage ports, stopping rods are horizontally erected at positions of the cage ports, the positions of the cage ports correspond to the outer sides of lower portions of the inlet baffle boards, a plurality of small holes are arranged on the inlet baffle boards, weight increasing metal bars are arranged on the inner sides of lower edges of the inlet baffle boards, a floating device is arranged on the side wall in the middle of the cage, a bait bottle is arranged in the cage, a plurality of small holes are arranged on the wall of the bait bottle, a transparent box is arranged in the cage, and a plurality of small holes are arranged on the transparent box; and the trapping device is placed in a water area where the trachemys scripta elegans are to be trapped, a part of the bait bottle is immersed in the water by means of the floating device, the other part of the bait bottle floats on the water, the transparent box is immersed in the water, then the smelling bait is filled in the bait bottle, the vision bait is filled in the transparent box, and finally the trapping device is fixed for trapping the trachemys scripta elegans.
Description
Technical field
The invention belongs to aquatic animal trapping and fishery and fish for the field, be specifically related to a kind of method of efficient trapping Trachemys scripta.
Background technology:
Trachemys scripta (Trachemys scripta elegans) also claims red ear tortoise, originates in cen.am., is evaluated as one of 100 invasive species of Most danger by World Conservation Union.The Trachemys scripta adaptive capacity to environment is strong, reproduction speed fast, omnivorousness, take the ovum of bird fish, shrimp, spiral shell, insect, tadpole, the frog, snake, water plants and the waters near and nestling as food, propagate Salmonella, with invasion ground Hard-shelled Freshwater Turtles competition existence resource, belong to typical external Harmful species, can the bio-diversity of culture fishery and invasion ground Freshwater ecosystems be done great damage.At present successfully invasion in the world wides such as America beyond Europe, Africa, Australia, Asia and the U.S. original producton location of this kind to causing serious ecological hazard and heavy economic losses with invading.
Because the Chelonian international trade, Trachemys scripta constantly enters Chinese market, the in addition amount reproduction of domestic foster tortoise field, and Trachemys scripta extensively has been full of Chinese Chelonian trading market in recent years, becomes the most cheap the most common tortoise kind on the present Chinese Chelonian market.Because China lacks the Trachemys scripta trade, cultivates and free movable strict control; common people's prevention awareness lacks; lose one's parents, enforce the law and the phenomenon long-term existence such as blindly free so that escape, pet are freeed, cultivated to religion; cause Trachemys scripta to enter Chinese Main Waters; open-air ubiquity; even the entering part nature reserve, ecological hidden danger and potential hazard are very large, have caused the attention of relevant expert and government department.
For the Trachemys scripta that enters wild environment, movable of mysterious movements, to the people near the time reaction responsive, be difficult to thoroughly remove, relatively environmental protection and effective way are traped exactly, and most important factor is exactly attractant effect and the trapping method of bait in the trapping process.At present, also there be not special bait and trapping method for Trachemys scripta, usually adopt the fishing gear of traditional fishing and terrapin to catch, do not use bait, or use the meats such as pork, chicken, the flesh of fish as bait, these baits will rot in the short time in water, the forfeiture attractant effect, do not have durability and reusable characteristics, do not have the effect that vision is lured yet, therefore conventional method is low to the capturing efficiency of Trachemys scripta, consuming time many, the bait waste is large, the while, traditional fishing gear also damaged other rare Chelonians easily.
Summary of the invention:
The method that the purpose of this invention is to provide a kind of efficient trapping Trachemys scripta is utilized the trapping Trachemys scripta that the method can persistent high efficiency, and time saving and energy saving, saves bait, and easy to operate, Environmental Safety is for field trapping Trachemys scripta provides solid technical support.
The method of efficient trapping Trachemys scripta of the present invention is characterized in that, may further comprise the steps:
(a) bait: comprise sense of smell bait and vision bait, described sense of smell bait is that fresh fish is done and bright dried shrimps, makes with complete small fish and shrimp, and its salinity is no more than 5%; Described vision bait is fresh and alive fresh water small fish and river prawn;
(b) trapping device: this trapping device comprises the cage body that is covered with net, cage mouth place respectively is provided with a transparent inlet baffle at cage body two ends, hang on cage mouth top, at the corresponding cage mouth place of inlet baffle lower outside, crossbearer makes the inlet baffle can only be to side oscillation in the cage mouth, and obstruction bar that can not side oscillation outside the cage mouth, inlet baffle is provided with several apertures, be provided with the weightening finish bonding jumper in inlet baffle lower limb inboard, sidewall at cage body middle part is provided with flotation gear, also is provided with the bait bottle in the cage body, has several apertures on the bottle wall of bait bottle, in the cage body, also be provided with transparent box, have several apertures on the transparent box;
(c) trapping device is put into the waters that wish is traped Trachemys scripta, by flotation gear a bait bottle part is immersed in the water, a part is on the water surface in addition, transparent box is immersed in the water, then the sense of smell bait is loaded in the bait bottle, again the vision bait is loaded in the transparent box, then fixes trapping device trapping Trachemys scripta.
It is strong that described fresh water small fish and river prawn are preferably vitality, and motility is strong, and is bright-colored, such as fishes and shrimps red and white.Preferably, be provided with stationary rope at the sidewall of cage body, by stationary rope trapping device be fixed near the bank of trapping ground water body, and when checking trapping device, can move trapping device to bank by stationary rope.
Described cage body is cuboid.
The net of the external cover of described cage can be net or the plastic gauze of soft cord braiding, and the mesh size can not be by being advisable with Trachemys scripta children tortoise.
Described levitating device can make the cage body swim on the water surface for empty plastic bottle or the rubber air bag of sealing, guarantees that cage body appropriateness emerges.
The lid of described bait bottle does not have the hole, can prevent that rainwater from entering in the bottle, and the bottom has several holes.
Described transparent box is preferably the transparent plastic box of cuboid, makes with colourless transparent plastic, and this has lid above plastic casing, all has some apertures on the wall of box, bottom and the lid.
Described bait bottle preferably hangs on the middle part of cage body, and described transparent box also hangs on the middle part of cage body, is positioned at the below of bait bottle.
In the described step (c), half is immersed in the water preferably to make the bait bottle by flotation gear, and half is on the water surface in addition.
The present invention is based on prolonged and repeated experimental study, taken into full account the characteristics of utilizing of sense of smell and vision in the Trachemys scripta predation process, the good bait of screening attractant effect, and bait carried out using cleverly, thus realized the attractant effect of persistent high efficiency.Use the method, can effectively trap Trachemys scripta in the open air, experiment shows, under the same terms, trapping efficient in 5 days is more than 2 times of traditional trapping method (using the fresh meat bait), aspect the service time of bait, traditional fresh meat bait is (the meat flavour forfeiture after soaking in water that is generally 2-3 days of trapping phase effectively, rot, lost efficacy), effective trapping phase of the bait that this method adopts is more than 30 days, the energy continuity, long-time performance trapping effect, and the tortoise of traping can be drowned phenomenon, and the method is time saving and energy saving, saves bait, easy to operate, Environmental Safety, cost is low, is conducive to utilization and extention.
Description of drawings:
Fig. 1 is the structural representation of trapping device of the present invention and uses schematic diagram, and inlet baffle is by the schematic diagram before and after strutting; Wherein 1, cage body; 21,22, inlet baffle, 23,24, stop bar; 25,26, weightening finish bonding jumper; 3, flotation gear; 4, bait bottle; 41, aperture; 42, fresh fish is done and bright dried shrimps; 5, stationary rope; 6, the water surface; 7, the cage body part that surfaces; 8, timber; 9, bank; 10, transparent plastic box; 11, fresh and alive fresh water small fish and river prawn.
Embodiment:
Following examples are to further specify of the present invention, rather than limitation of the present invention.
Embodiment 1:
As shown in Figure 1, the method for the efficient trapping Trachemys scripta of present embodiment may further comprise the steps:
Bait: comprise sense of smell bait and vision bait, the fresh fish that described sense of smell bait is fresh water is done and bright dried shrimps, and its salinity mass content is no more than 5%; Described vision bait be fresh and alive, that vitality is strong, motility is strong, bright-colored, such as red and white fresh water small fish and river prawn.
Trapping device: this trapping device comprises and is cuboid, be covered with the cage body 1 of the net of soft cord braiding, cage mouth place, cage body 1 two ends respectively is provided with a water white poly (methyl methacrylate) plate as inlet baffle 21,22, this inlet baffle 21,22 hang on cage mouth top, on poly (methyl methacrylate) plate, also be provided with some apertures, make things convenient for current to pass through, inlet baffle 21,22 is sagging under Action of Gravity Field, at the corresponding cage mouth place of inlet baffle lower outside, crossbearer makes the inlet baffle can only be to side oscillation in the cage mouth, and obstruction bar 23 that can not side oscillation outside the cage mouth, 24, cage mouth both sides are fixed at its two ends, along inlet baffle 21,22 lower limb inboards are provided with weightening finish bonding jumper 25,26, the weightening finish bonding jumper can for the higher bonding jumper of density (such as iron bar, the metal bar), it can increase the weight of inlet baffle lower end, wash inlet baffle open to prevent water stream, establish the flotation gear 3 that Packed empty plastic bottle is made at the middle part of the both sides of cage body 1 sidewall, be hung with bait bottle 4 at the middle part of cage body 1, have some apertures 41 on the bottle wall of bait bottle 4 and the bottom, diameter 0.5cm, on bottle cap, do not have the hole, can prevent that rainwater from entering in the bait bottle 4, also be provided with the transparent plastic box 10 that is shaped as cuboid at cage body 1 middle part, transparent plastic box 10 usefulness colourless transparent plastics are made, this has lid above plastic casing, the wall of box, all have some apertures on bottom and the lid, aperture size can not be escaped from fishes and shrimps and be advisable, transparent plastic box 10 inner space sizes should be able to guarantee the fish as bait, shrimp can move about freely, this transparent plastic box 10 hangs on the middle part of cage body 1, be positioned at the below of bait bottle 4, on cage body 1 right-hand member sidewall, also be fixed with stationary rope 5.
Trapping device is put into lake or the slow position of rivers brook current of trapping Trachemys scripta, flotation gear 3 can make trapping device float on the water surface, half is immersed in the water to make bait bottle 4 by flotation gear 3, half is on the water surface in addition, transparent plastic box 10 is immersed in the water, then with sense of smell bait-do and bright dried shrimps 42(fresh fish is done the 20-30 gram from the fresh fish of fresh water, bright dried shrimps 20-30 gram, its salinity does not all have to surpass 5%) be loaded in the bait bottle 4, again with vision bait-fresh and alive, vitality is strong, motility is strong, fresh water small fish and the river prawn 11 of bright-colored (such as red and white) are loaded in the transparent plastic box 10, put fresh water small fish 5-8 bar in each transparent plastic box 10, river prawn 5-8 only, then be fixed on the timber 8 on bank 9 by stationary rope 5, prevent that current from floating trapping device walk, and can be when checking trapping device, can move trapping device to bank by stationary rope 5.The smell that bait-fresh fish in the bait bottle 4 is done and dried shrimps 42 distributes is dispersed in the water and air by aperture 41, the fresh and alive fresh water small fish and the river prawn 11 that are contained in the transparent plastic box 10 can be lured Trachemys scripta by vision, when Trachemys scripta smells the smell that fresh fish is done and dried shrimps 42 distributes or sees fresh and alive fresh water small fish and river prawn 11, will swim to trapping device, then push easily the water white poly (methyl methacrylate) plate of luring entrance office open with head and back and enter in the cage, after Trachemys scripta enters, poly (methyl methacrylate) plate is sagging sealing cage mouth under Action of Gravity Field, and tortoise is enclosed in the trapping device.Because bait-fresh fish is done and dried shrimps 42 is contained in the bait bottle 4, tortoise can't be had bait-fresh fish and be done and dried shrimps 42, bait-fresh fish is done and dried shrimps 42 can use for a long time, vision bait-fresh and alive small fish and river prawn 11 is loaded in the transparent plastic box 10, tortoise also can't be had, thereby do not need to change frequently, being enclosed in Trachemys scripta in the trapping device can lean out head the water surface 6 and be exposed to the cage body part 7 that surfaces, breathe, thereby avoid being drowned of Trachemys scripta, realize continuity, for a long time trapping.
In 2 identical open-air ponds, natural environment, the pond size is 50m * 50m, the inside respectively is placed with 20 Trachemys scriptas, 6 trappings of fixing selection points in two ponds.
The therein trapping of 6 in pond points, according to the method trapping Trachemys scripta of above-described embodiment 1, experiment periods is 5 days-30 days, observes quantity and the bait qualitative change of trapping tortoise every day.
6 trapping points in the another one pond are traped according to the method for routine, namely put fish pot at the trapping point, put into beef or pork in the fish pot, trap Trachemys scripta, and experiment periods is 5-30 days, observes quantity and the bait qualitative change of trapping tortoise every day.
The result is, conventional method (fresh meat) trap effect on the same day is good, and bait is lost trap effect substantially after 2-3 days, needs to change bait.The cage trap that conventional method is used does not have flotation gear, and the cage body sinks to the bottom, needs check every day and catches cage, in time take out the tortoise of traping, otherwise the tortoise of traping can be drowned in cage.The entrance of luring of conventional method is generally the funnel device that rope is made, and still have an opportunity to escape from cage by funnel after the tortoise that build is less enters, and entrance of the present invention is comprised of inlet baffle and obstruction bar, and Trachemys scripta can't be out once entering.The method of above-described embodiment 1 had good trap effect in 10 days, bait still had preferably trap effect in 11-30 days, and phenomenon can not appear being drowned in the tortoise that catches in cage, entered the phenomenon that cage also can not appear escaping from the interior tortoise of cage.The average cage trap of conventional method was traped 6 tortoises in 5 days, and the average cage trap of the method for above-described embodiment 1 was traped 13 tortoises in 5 days.
Claims (10)
1. the method for an efficient trapping Trachemys scripta is characterized in that, may further comprise the steps:
(a) bait: comprise sense of smell bait and vision bait, described sense of smell bait is that fresh fish is done and bright dried shrimps, makes with complete small fish and shrimp, and its salinity is no more than 5%; Described vision bait is fresh and alive fresh water small fish and river prawn;
(b) trapping device: this trapping device comprises the cage body that is covered with net, cage mouth place respectively is provided with a transparent inlet baffle at cage body two ends, hang on cage mouth top, at the corresponding cage mouth place of inlet baffle lower outside, crossbearer makes the inlet baffle can only be to side oscillation in the cage mouth, and obstruction bar that can not side oscillation outside the cage mouth, inlet baffle is provided with several apertures, be provided with the weightening finish bonding jumper in inlet baffle lower limb inboard, sidewall at cage body middle part is provided with flotation gear, also is provided with the bait bottle in the cage body, has several apertures on the bottle wall of bait bottle, in the cage body, also be provided with transparent box, have several apertures on the transparent box;
(c) trapping device is put into the waters that wish is traped Trachemys scripta, by flotation gear a bait bottle part is immersed in the water, a part is on the water surface in addition, and transparent box is immersed in the water, then the sense of smell bait is loaded in the bait bottle,
Again the vision bait is loaded in the transparent box, then fixes trapping device trapping Trachemys scripta.
2. the method for efficient trapping Trachemys scripta according to claim 1 is characterized in that, described fresh water small fish and river prawn are that vitality is strong, and motility is strong, brightly painted fishes and shrimps.
3. the method for efficient trapping Trachemys scripta according to claim 2 is characterized in that, described brightly painted fishes and shrimps refer to the fishes and shrimps of redness or white.
4. the method for efficient trapping Trachemys scripta according to claim 1 is characterized in that, is provided with stationary rope at the sidewall of cage body.
5. the method for efficient trapping Trachemys scripta according to claim 1 is characterized in that, described cage body is cuboid.
6. the method for efficient trapping Trachemys scripta according to claim 1 is characterized in that, the net of the external cover of described cage is net or the plastic gauze of soft cord braiding.
7. the method for efficient trapping Trachemys scripta according to claim 1 is characterized in that, described levitating device is empty plastic bottle or the rubber air bag of sealing.
8. the method for efficient trapping Trachemys scripta according to claim 1 is characterized in that, the lid of described bait bottle does not have the hole, and the bottom has several holes.
9. the method for efficient trapping Trachemys scripta according to claim 1 is characterized in that, described bait bottle hangs on the middle part of cage body, and described transparent box also hangs on the middle part of cage body, is positioned at the below of bait bottle.
10. the method for efficient trapping Trachemys scripta according to claim 1 is characterized in that, in the described step (c), half is immersed in the water to make the bait bottle by flotation gear, and half is on the water surface in addition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434012.6A CN102919215B (en) | 2012-11-02 | 2012-11-02 | Method for efficiently trapping trachemys scripta elegans |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210434012.6A CN102919215B (en) | 2012-11-02 | 2012-11-02 | Method for efficiently trapping trachemys scripta elegans |
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| CN102919215A true CN102919215A (en) | 2013-02-13 |
| CN102919215B CN102919215B (en) | 2014-03-26 |
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| CN201210434012.6A Active CN102919215B (en) | 2012-11-02 | 2012-11-02 | Method for efficiently trapping trachemys scripta elegans |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109792981A (en) * | 2018-11-20 | 2019-05-24 | 广东省生物资源应用研究所 | A kind of trap and its method for entrapping for traping red ear tortoise |
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| US4437259A (en) * | 1981-05-06 | 1984-03-20 | Holyoak Hugh K | Turtle trap and process of trapping turtles |
| KR20080096632A (en) * | 2007-04-28 | 2008-10-31 | 하흥용 | Animal trap |
| CN201282699Y (en) * | 2008-09-12 | 2009-08-05 | 谢小平 | Novel mouse trap |
| CN201846712U (en) * | 2010-10-14 | 2011-06-01 | 钱子炯 | Simple mouse-luring mousetrap |
| CN102273425A (en) * | 2011-06-21 | 2011-12-14 | 广东省昆虫研究所 | Safe and efficient terrapin trapping device |
-
2012
- 2012-11-02 CN CN201210434012.6A patent/CN102919215B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4437259A (en) * | 1981-05-06 | 1984-03-20 | Holyoak Hugh K | Turtle trap and process of trapping turtles |
| KR20080096632A (en) * | 2007-04-28 | 2008-10-31 | 하흥용 | Animal trap |
| CN201282699Y (en) * | 2008-09-12 | 2009-08-05 | 谢小平 | Novel mouse trap |
| CN201846712U (en) * | 2010-10-14 | 2011-06-01 | 钱子炯 | Simple mouse-luring mousetrap |
| CN102273425A (en) * | 2011-06-21 | 2011-12-14 | 广东省昆虫研究所 | Safe and efficient terrapin trapping device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109792981A (en) * | 2018-11-20 | 2019-05-24 | 广东省生物资源应用研究所 | A kind of trap and its method for entrapping for traping red ear tortoise |
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| CN102919215B (en) | 2014-03-26 |
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