CN104604771A - Acoustic tag tracking method for parent crabs of Yangtze estuary eriocheir sinensis - Google Patents
Acoustic tag tracking method for parent crabs of Yangtze estuary eriocheir sinensis Download PDFInfo
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- CN104604771A CN104604771A CN201510046709.XA CN201510046709A CN104604771A CN 104604771 A CN104604771 A CN 104604771A CN 201510046709 A CN201510046709 A CN 201510046709A CN 104604771 A CN104604771 A CN 104604771A
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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
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Abstract
Provided is an acoustic tag tracking method for parent crabs of Yangtze estuary eriocheir sinensis. The method is characterized by comprising the steps that acoustic tags are fixed to back shells of the parent crabs; evaluation tests are carried out on the signed crabs, and if the signed crabs are not obviously different from a control crab, it indicates that the signed crabs can be used for release study; areas coinciding with the migration site of the natural population parent crabs in the same day are selected as the release water area of the signed crabs, longitude and latitude data of a release site are recorded through a GPS instrument, and release time is recorded; after a headphone finds acoustic signals in the signal monitoring stage, a directional monitoring headphone is put at the position two meters deep in water, and a monitor records the signal strength and time of all the acoustic signs; the received signal strength is converted into the position of the signed crabs according to the regression equation of the signal strength of the acoustic signs and the distance, and the GPS data of the signed crabs are recorded; the migration speed of each signed crab is calculated according to a migration speed formula and the GPS data, and the moving positions of the parent crabs are connected to obtain a migration route; when the signed crabs reach a spawning ground, the signed crabs stay still and carry legs for reproduction, and the water area is the spawning ground of the parent crabs.
Description
Technical field
The invention belongs to fishery resources monitoring technology, especially the acoustic signature tracking of ParentEriocheir sinensis.
Background technology
Eriocheir sinensia, also known as river crab, steamed crab.In recent years along with the change of the Changjiang river aquatic life habitat, waterwork increase and the increasing of catching intensity, Eriocheir sinensia abundance index and distribution also there occurs great variety.Eriocheir sinensia widely distributes in In Middle And Lower Reaches of Changjiang River, from Yangtze River estuary area until the river Duan Jun such as the Shashi in Hubei have ripe ParentEriocheir sinensis (being called for short close crab).Tided over for two ages in autumn every year when young crab is fattened in the inland freshwaters such as river, river, lake, storehouse, sexual gland is gradually ripe, and start to move to the Hekou District entering sea in a group, in the brackish water that river mouth and shallow sea cross, mating is bred, and defines the breeding migration of close crab.Yangtze River estuary area parent crab peak period, generally in late November, defines the winter crab crab flood of Yangtze River estuary area.During the parent crab migration of the Changjiang river; accurate grasp close crab migration rule is fished for scientific research all significant for production; but the current migration velocity for close crab and route are studied less; substantially qualitative description and empirical evaluation stage is in; lack and assess numerical value accurately; therefore in the urgent need to inventing a kind of method for quantitatively determining measuring the Changjiang river parent crab migration velocity, migration route and spawning ground scope; the eigen value of accurate grasp close crab migration rule, so as entrance of Changjiang River parent crab fish for, habitat protection, enhancement releasing, restoration of the ecosystem etc. provide theoretical foundation.Along with technical development, acoustics tracking and monitoring technology can be applied in aquatic ecology research.This technology utilizes ultrasonic tags, realizes carrying out continuing study to aquatic animal behavior in natural environment, helps scientist to understand the features such as aquatic animal migratory behaviour, breeding regulation, scope of activities in depth.Acoustic signature biotelemetry has the advantage of home position observation, can draw the reference data such as migration route, migration velocity, spawning ground scope accurately.
Summary of the invention
The technical problem that the present invention solves is to provide the acoustic signature method for tracking and positioning of a kind of entrance of Changjiang River ParentEriocheir sinensis, for the migration feature such as migration route, migration velocity, spawning ground scope of accurate evaluation parent crab.
Technical scheme of the present invention is fixed by close crab acoustic signature, mark impact evaluation, input indicates close crab, receiver monitor signal, mark crab ranging localization, migration parameter calculate 6 steps and form, and it is characterized in that:
Parent crab acoustic signature fixes 502 glue adopting self-locking nylon cable tie, plastic tab, waterproof, the width 3mm of self-locking nylon cable tie; Plastic tab is rectangle, and length and width are respectively 2.8 centimetres and 2.2 centimetres, and one of them bottom surface is rough crude structure; Be separated by the middle part of plastic tab 1.8 centimetres and respectively bore 2 holes, 2 self-locking nylon cable ties are entangled acoustic signature tension through hole, contact part at self-locking nylon cable tie with acoustic signature and coat 502 glue; Then choose the ParentEriocheir sinensis of more than 200 grams, coat 502 glue at its shell on the back, 502 glue are also coated in the bottom surface crude at plastic tab, make both fully contact and cement;
Mark impact evaluation adopts behaviouristics culture experiment system to conduct a research, and the close crab marked is put into respectively 3 behaviouristics culture experiment systems, and carries out behaviouristics contrast experiment with not marked close crab in other 3 behaviouristics culture experiment systems, cultivating water box base plate is placed through the plastic plate that straight line divides the little lattice of quadrate, utilize the close crab active situation of infrared camera and electronic brain timing record two experimental group, after being recorded by 10 day time, add up the video recording be kept in computer, calculate mark crab and the total quantity contrasting crab and get over square little lattice, thus draw displacement numerical value, if indicate crab after statistical analysis and contrast displacement there was no significant difference between crab, show that this group mark crab can be used for research of releasing, otherwise, then show that this group mark crab vigor is poor, mark has a negative impact to it, experiment of releasing can not be used for,
When throwing in the close crab of mark, multiple gill net is utilized to fish for close crab, thus tentatively draw the migration position of natural population, the border circular areas being selected in the overlapping diameter 500 meters in the same day and natural population parent crab migration site is waters, close for mark crab is released in estuary area, by the longitude and latitude data that GPS instrument record is released a little, and record is released the time;
The receiver monitor signal stage is equipped with 2 monitoring speedboats, every speedboat is equipped omni-directional monitoring receiver and orthotype monitoring receiver; Omni-directional monitor energy 360 degree receives acoustic signals, and orthotype monitoring receiver can only receive the acoustic signal in 150 degree, front; Omni-directional being monitored receiver ties up on rod, put into water 2 meters of deep location, then the signal whether finding to indicate crab is monitored on the monitor, when after discovery acoustic signal, orthotype is monitored receiver and put into water 2 meters of deep location, monitor can record automatically signal strength signal intensity and the time of each acoustics mark, each acoustic signature has different coding;
According to the regression equation of acoustics marking signal intensity and distance, the signal strength signal intensity received can be converted into the distance of mark crab distance monitoring speedboat, it is the center of circle that mark crab is positioned at monitoring speedboat, distance be radius circumferentially; Figure draws the circumference that 2 monitoring speedboat monitor signals are converted into, then the front intersection point of 2 circumference is the position of mark crab, then converts and records its gps data;
Migration velocity V=S ÷ (T1-T2), wherein S is the distance of releasing a little and indicating between crab, is calculated by gps data, and T1 is the time monitoring mark crab, T2 is the time of releasing, and can calculate every migration velocity only indicating crab every day according to migration velocity formula; Connect release site and the position monitoring close crab, the migration route of mark crab can be drawn; Motionless when indicating that crab can stop when finally arriving spawning ground, start oogenesis breeding, then show that this waters is the spawning ground of close crab.
Outstanding feature of the present invention is migration velocity, migration route and spawning ground scope by assessing close crab after acoustics mark ParentEriocheir sinensis continuously exactly; for entrance of Changjiang River parent crab is fished for and protects the reference data providing science, compensate for the blank of migration velocity, migration route and the spawning ground technological means lacking accurate evaluation parent crab.
Accompanying drawing explanation
Fig. 1 is the device schematic diagram for fixing ParentEriocheir sinensis acoustic signature.
Fig. 2 is the behaviouristics culture experiment system schematic of close crab mark impact evaluation.
Fig. 3 is receiver monitoring acoustics marking signal schematic diagram.
Fig. 4 is mark crab ranging localization schematic diagram.
Fig. 5 is the regression equation figure of acoustics marking signal intensity and distance.
Embodiment
First choose the close crab of the wild migration in the Changjiang river, acoustic signature 1 (see Fig. 1), at 200 grams ~ 250 grams, is fixed on the shell on the back of close crab by body weight.Parent crab acoustic signature fixes the materials such as 502 glue adopting self-locking nylon cable tie 2, plastic tab 3, waterproof, the width 3mm of self-locking nylon cable tie; Plastic tab is rectangle, and length and width are respectively 2.8 centimetres and 2.2 centimetres, and one of them bottom surface is rough crude structure; Be separated by the middle part of plastic tab 1.8 centimetres and respectively bore 2 holes, 2 self-locking nylon cable ties are entangled acoustic signature tension through hole, cuts off unnecessary band; Contact part at self-locking nylon cable tie with acoustic signature and coat 502 glue; Then choose the ParentEriocheir sinensis of more than 200 grams, coat 502 glue at its shell on the back, 502 glue are also coated in the bottom surface that plastic tab is crude, make both fully contact and cement.By above method of operating mark 3 close crabs.
Evaluation test is carried out to 3 the close crabs marked, the impact evaluation of parent crab mark adopts behaviouristics culture experiment system (see Fig. 2) to carry out, behaviouristics culture experiment system by cover plate 4, lanyard 5, water tank 6, plastic plate 7, camera 9, data line 10, display 11, display transmission line 12, host computer 13 form, the close crab marked is put into respectively 3 behaviouristics culture experiment systems, and carry out behaviouristics contrast experiment with not marked 3 close crabs of cultivating in other 3 behaviouristics culture experiment systems.The base plate 8 of water tank 6 is placed the plastic plate 7 that straight line divides the little lattice of quadrate, each square length of side is 2 centimetres, utilize the close crab active situation of infrared camera 9 and electronic brain timing record two experimental group, after being recorded by 10 day time, statistical analysis is kept at the video recording in computer, calculate every only mark crab and the quantity contrasting crab and get over square little lattice, thus draw displacement numerical value, if indicate crab and contrast there was no significant difference between crab, show that mark crab can be used for research of releasing, otherwise, then show that this group mark crab vigor is bad, mark is to which creating adverse effect, experiment of releasing can not be used for.
When throwing in the close crab of mark, gill net is utilized to fish for the migration position of monitoring natural population, then the border circular areas being selected in the overlapping diameter 500 meters in the same day and natural population parent crab migration site is waters, 3 close crabs of mark are released in estuary area, by the longitude and latitude data that GPS instrument record is released a little, and record is released the time.
The receiver monitor signal stage (see Fig. 3) is equipped with 2 monitoring speedboats 15, every speedboat is equipped omni-directional monitoring receiver and orthotype monitoring receiver.Omni-directional monitor energy 360 degree receives acoustic signals, and orthotype monitoring receiver can only receive the acoustic signal in 150 degree, front.Omni-directional being monitored receiver 17 ties up on rod 16, put into river 2 meters of deep location, then on monitor 14, monitor the signal whether finding to indicate crab 18, when after discovery acoustic signal, orthotype is monitored receiver and put into river 19 2 meters of deep location, monitor can record automatically signal strength signal intensity and the time of each acoustics mark, each acoustic signature has different coding.
According to the regression equation of acoustics marking signal intensity and distance, the signal strength signal intensity received is converted into the distance of mark crab distance monitoring speedboat, it is the center of circle that mark crab is positioned at monitoring speedboat, and distance is radius circumferentially (see Fig. 4).According to the circumference that 2 monitoring speedboat monitor signals are converted into, then the front intersection point of 2 circumference is the position of mark crab, then converts and records its gps data.
Migration velocity V=S ÷ (T1-T2), wherein S is the distance of releasing a little and indicating between crab, is calculated by gps data, and T1 is the time monitoring mark crab, T2 is the time of releasing, and can calculate every migration velocity only indicating crab every day according to migration velocity formula; Connect release site and the position monitoring close crab, the migration route of mark crab can be drawn.Motionless when indicating that crab can stop when finally arriving spawning ground, start oogenesis breeding, then show that this waters is the spawning ground of close crab.
Claims (1)
1. the acoustic signature tracking of entrance of Changjiang River ParentEriocheir sinensis, is characterized in that the close crab first choosing the wild migration in the Changjiang river, and acoustic signature, at 200 grams ~ 250 grams, is fixed on the shell on the back of close crab by body weight; Parent crab acoustic signature fixes 502 glue adopting self-locking nylon cable tie, plastic tab, waterproof, the width 3mm of self-locking nylon cable tie; Plastic tab is rectangle, and length and width are respectively 2.8 centimetres and 2.2 centimetres, and one of them bottom surface is rough crude structure; Be separated by the middle part of plastic tab 1.8 centimetres and respectively bore 2 holes, 2 self-locking nylon cable ties are entangled acoustic signature tension through hole, cuts off unnecessary band; Contact part at self-locking nylon cable tie with acoustic signature and coat 502 glue; Then choose the ParentEriocheir sinensis of more than 200 grams, coat 502 glue at its shell on the back, 502 glue are also coated in the bottom surface crude at plastic tab, make both fully contact and cement, by above method of operating mark 3 close crabs;
Evaluation test is carried out to 3 the close crabs marked, the impact evaluation of parent crab mark adopts behaviouristics culture experiment system to carry out, behaviouristics culture experiment system is made up of cover plate, lanyard, water tank, plastic plate, camera, data line, display, display transmission line, host computer, the close crab marked is put into respectively 3 behaviouristics culture experiment systems, and carry out behaviouristics contrast experiment with not marked 3 the close crabs of other 3 behaviouristics culture experiment systems, the base plate of water tank is placed the plastic plate that straight line divides the little lattice of quadrate, each square length of side is 2 centimetres, utilize the close crab active situation of infrared camera and electronic brain timing record two experimental group, after being recorded by 10 day time, statistical analysis is kept at the video recording in computer, calculate every only mark crab and the quantity contrasting crab and get over square little lattice, thus draw displacement numerical value, if indicate crab and contrast displacement there was no significant difference between crab, show that mark crab can be used for research of releasing, otherwise, then show that this group mark crab vigor is bad, mark has a negative impact to it, experiment of releasing can not be used for,
When throwing in the close crab of mark, gill net is utilized to fish for the migration position of monitoring natural population, then the border circular areas being selected in the overlapping diameter 500 meters in the same day and natural population parent crab migration site is waters, 3 close crabs of mark are released in estuary area, by the longitude and latitude data that GPS instrument record is released a little, and record is released the time;
The receiver monitor signal stage is equipped with 2 monitoring speedboats, every speedboat is equipped omni-directional monitoring receiver and orthotype monitoring receiver, omni-directional monitor energy 360 degree receives acoustic signals, and orthotype monitoring receiver can only receive the acoustic signal of the 150 degree of scopes in front, omni-directional being monitored receiver ties up on rod, put into the Changjiang river saliva 2 meters of deep location, then the signal whether finding to indicate crab is monitored on the monitor, when after discovery acoustic signal, orthotype is monitored receiver and put into the Changjiang river saliva 2 meters of deep location, monitor can record automatically signal strength signal intensity and the time of each acoustics mark, each acoustic signature has different coding,
According to the regression equation of acoustics marking signal intensity and distance, the signal strength signal intensity received is converted into the distance of mark crab distance monitoring speedboat, it is the center of circle that mark crab is positioned at monitoring speedboat, distance be radius circumferentially; According to the circumference that 2 monitoring speedboat monitor signals are converted into, then the front intersection point of 2 circumference is the position of mark crab, then converts and records its gps data;
Migration velocity V=S ÷ (T1-T2), wherein S is the distance of releasing a little and indicating between crab, is calculated by gps data, and T1 is the time monitoring mark crab, T2 is the time of releasing, and often only indicates the migration velocity of crab every day according to migration velocity formulae discovery; Connect release site and the position monitoring close crab, draw the migration route of mark crab; Motionless when indicating that crab can stop when finally arriving spawning ground, start oogenesis breeding, then show that this waters is the spawning ground of close crab.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927331A (en) * | 2019-05-24 | 2020-03-27 | 四川省林业科学研究院 | Oncomelania activity detection device and activity detection and snail-expelling liquid drug effect detection method |
| CN111587826A (en) * | 2020-06-08 | 2020-08-28 | 中国水产科学研究院东海水产研究所 | Ecological migration channel of eriocheir sinensis and reconstruction method thereof |
| CN113016677A (en) * | 2021-03-01 | 2021-06-25 | 中国水产科学研究院淡水渔业研究中心 | Device and method for identifying ovarian development degree of eriocheir sinensis |
-
2015
- 2015-01-29 CN CN201510046709.XA patent/CN104604771B/en active Active
Non-Patent Citations (2)
| Title |
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| 曹侦: "长江口中华绒螯蟹养殖亲蟹的放流、生理适应及与洄游亲蟹形态判别", 《中国优秀硕士学位论文全文数据库》 * |
| 童剑锋等: "基于声学摄像仪的溯河洄游幼香鱼计数", 《渔业现代化》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927331A (en) * | 2019-05-24 | 2020-03-27 | 四川省林业科学研究院 | Oncomelania activity detection device and activity detection and snail-expelling liquid drug effect detection method |
| CN111587826A (en) * | 2020-06-08 | 2020-08-28 | 中国水产科学研究院东海水产研究所 | Ecological migration channel of eriocheir sinensis and reconstruction method thereof |
| CN113016677A (en) * | 2021-03-01 | 2021-06-25 | 中国水产科学研究院淡水渔业研究中心 | Device and method for identifying ovarian development degree of eriocheir sinensis |
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