CN104982393B - A kind of fishing device in quickly river health microbial administration method directly perceived - Google Patents
A kind of fishing device in quickly river health microbial administration method directly perceived Download PDFInfo
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- CN104982393B CN104982393B CN201510350468.8A CN201510350468A CN104982393B CN 104982393 B CN104982393 B CN 104982393B CN 201510350468 A CN201510350468 A CN 201510350468A CN 104982393 B CN104982393 B CN 104982393B
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- 230000036541 health Effects 0.000 title claims abstract description 67
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000000813 microbial effect Effects 0.000 title claims abstract description 28
- 241000251468 Actinopterygii Species 0.000 claims abstract description 313
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 230000033001 locomotion Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 230000001133 acceleration Effects 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 230000009182 swimming Effects 0.000 claims description 4
- 230000006378 damage Effects 0.000 abstract description 10
- 208000027418 Wounds and injury Diseases 0.000 abstract description 7
- 208000014674 injury Diseases 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 4
- 230000003862 health status Effects 0.000 description 18
- 239000000126 substance Substances 0.000 description 17
- 239000000090 biomarker Substances 0.000 description 15
- 241000894007 species Species 0.000 description 13
- 230000000694 effects Effects 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 4
- 230000001960 triggered effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000012216 screening Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 241000195493 Cryptophyta Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K69/00—Stationary catching devices
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Mechanical Means For Catching Fish (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The present invention is a kind of fishing device in quickly river health microbial administration method directly perceived, including a fish frame, a drawstring, a flexible clamp piece, a fish frame lid, a motor and a pressure transducer；The fish frame, its inner bottom part are connected with described drawstring one end；The drawstring, its one end are connected with the fish frame, and the other end is connected with the motor, and the motor controls the lifting flexible clamp piece of the fish frame by the drawstring, and which is arranged on the drawstring, to the fixation fish frame lid；The fish frame lid, its center are provided with a fish frame lid centre bore, and the fish frame lid is fixed by the flexible clamp piece through the fish frame lid centre bore, prevents fish from escaping from；The pressure transducer, which is arranged on the drawstring, controls the operation of the motor.The design of fish frame of the present invention, fish hook in different and traditional fishing, fishing net fishing can cause certain damage to fish, and it will not be to fish generation injury in fishing operations.
Description
Technical field
The present invention relates to a kind of fishing device, more particularly to it is a kind of in quickly river health microbial administration method directly perceived
Fishing device.
Background technology
Rivers health status comprehensive descision is the basis that the original Ecosystem Service of restoration of the ecosystem and river is carried out to river
Work.But the rivers health status evaluation index that at present, China adopts also is only limitted to dissolved oxygen (DO), COD (COD)
Deng physical and chemical index, the important component part-hydrobiological health status of urban river ecosystem health are have ignored, it is impossible to complete
Face science judgment rivers health status and pressure, will cause river ecosystem restoration and protection target indefinite, it is impossible to reflect water thing
Relation between amount chemical index and aquatic ecosystem health.Meanwhile, physical and chemical index is without the public of the normal direction without Professional knowledge
The rivers health status are expressed intuitively, the public is not easy to understand straight between the change of the indexs such as DO, COD and aquatile health
Contact is seen, so as to affect the enthusiasm of river two sides community public participation stream protection.However, traditional aquatile investigation,
It is related to various hydrobiological samplings such as Fish, zoobenthos, algae, water plant and identification, not only wastes time and energy, and into
This is huge, so in practical situations both, researcher is difficult to carry out complete survey to the aquatile in studied river.Therefore, lead to
Some can preferably indicate that the Biological indicators of rivers health status are investigated often to need screening.But, both at home and abroad to aquatic life
The screening of thing index has no unified approach, and the acquisition workload of some indexs is big, and cannot intuitively reflect rivers health status, no
Rivers health status are understood by the index beneficial to the public.Therefore, with a kind of quickly river health microbial administration method directly perceived
To judge the health status in river.
Need to study the quantity and species of fish in river in the method, and the fishing device of prior art is worked
Cheng Zhonghui causes certain injury to Fish, causes the death of Fish, therefore is not suitable in the method.
Therefore the present invention provides a kind of fishing device in quickly river health microbial administration method directly perceived to solve
The problems referred to above.
The content of the invention
It is an object of the present invention to provide a kind of fishing in quickly river health microbial administration method directly perceived
Device, to overcome above-mentioned technological deficiency.
For achieving the above object, the technical solution used in the present invention is that a kind of intuitively quick river health that is used for is given birth to
Fishing device in thing indicating means, including a fish frame, a drawstring, a flexible clamp piece, a fish frame lid, a motor and a pressure sensing
Device；
The fish frame, its inner bottom part are connected with described drawstring one end；
The drawstring, its one end are connected with the fish frame, and the other end is connected with the motor, and the motor is by the drawing
The lifting flexible clamp piece of the rope control fish frame, which is arranged on the drawstring, to the fixation fish frame lid；
The fish frame lid, its center are provided with a fish frame lid centre bore, and the flexible clamp piece passes through the fish frame lid centre bore
The fish frame lid is fixed, prevents fish from escaping from；
The pressure transducer, which is arranged on the drawstring, controls the operation of the motor, the pressure transducer with
The distance of the fish frame lid vertical direction is h, and its computing formula is：
Wherein, s is the length of the fish frame lid bucket wall, and r is the radius of the fish frame lid drum head, VLFor the fish frame upwards
The speed of motion, x is the distance of the fish frame lid bucket wall lower end to the fish frame vertical direction, VYFor the most quick of fish swimming
Degree, g is acceleration of gravity, and ρ is the density of material of the fish frame lid, and V is the displacement of volume that the fish frame lid is entered in water, and m is
The quality of the fish frame lid.
Preferably, the fish frame lid outer wrap has the fish framework of a tubulose, described fish framework one end and an elastic hose
It is connected, the other end is provided with multiple fish framework apertures, and the pressure transducer passes through fish framework aperture described in and is fixed on
On the fish framework, the drawstring can be moved in the fish framework.
Preferably, the elastic hose is wrapped in outside the drawstring, described elastic hose one end and the fish inframe bottom
Portion is connected, and the other end is connected with the fish framework.
Preferably, the flexible clamp piece is claw type, the part-structure of the flexible clamp piece is stretched out from the fish framework aperture,
The fish frame lid is fixed.
Preferably, a runner is provided with the motor, it is connected with the drawstring by the runner, the motor passes through
Control the length that the runner rotates to control the drawstring straight portion.
Preferably, barrel-like structure of the fish frame for opening upwards, and several apertures on the fish frame, are provided with, reduce institute
State resistance of the fish frame in water exercise.
Preferably, the fish frame lid is the barrel-like structure that Open Side Down, its opening diameter is more than the fish frame bucket footpath.
Preferably, the pressure transducer outer wrap has bait, to attract Fish.
Preferably, multiple apertures are provided with the fish frame lid, to reduce its resistance in water exercise.
Preferably, the fish frame cover material density is more than the density of water, the fish frame is covered when not acted on by external force in water
Middle sinking, to accelerate the fish frame lid to close with the fish frame.
Compared with the prior art the beneficial effects of the present invention is：The design of fish frame of the present invention, different and traditional fishing
Middle fish hook, fishing net, traditional fishing can cause certain damage to fish, and the present invention will not produce injury to fish in fishing operations；
Bait is pecked by fish and triggers fishing device switch, increase the probability of capture fish；As the flexible clamp piece in fish framework is designed so that fish
Frame lid is fixed on fish framework, there is space with the fish frame so that fish can enter fishing from space of the fish frame lid with fish frame
Device；Fish framework is connected by the elastic hose with the fish frame, can not only make fish framework with drawstring shorten and rise while
Due to the cushioning effect of the elastic hose, flexible clamp piece is departed from into fish framework, so that fish frame lid is no longer secured to fish framework
On so that fish frame is closed with the fish frame lid, so as to capture and which not damaged fish.
Description of the drawings
Fig. 1 is structure chart of the present invention for the fishing device in quickly river health microbial administration method directly perceived；
Fig. 2 is that the local of I in fishing device Fig. 1 that the present invention is used in quickly river health microbial administration method directly perceived is put
It is big to scheme.
Specific embodiment
It is below in conjunction with accompanying drawing, above-mentioned to the present invention to be described in more detail with other technical characteristic and advantage.
Fig. 1 is referred to, is structure of the present invention for the fishing device in quickly river health microbial administration method directly perceived
Figure.The fishing device includes fish frame 1, drawstring 2, fish frame lid 3, fish framework 5, flexible clamp piece 6, pressure transducer 7, elastic hose 8,
Runner 9 and motor 4.
The fish frame 1 is barrel-like structure, to capture Fish, arranges the aperture that several fishes cannot be walked thereon, is reduced described
Resistance of the fish frame 1 in water exercise.
Incorporated by reference to shown in Fig. 2, being the present invention for the fishing device in quickly river health microbial administration method directly perceived
Partial schematic diagram, which is the partial enlargement structural representation in I portions in Fig. 1.The fish framework 5 is tubular structure, its one end and institute
State elastic hose 8 to be connected, on the other end, be provided with multiple fish framework apertures 51.8 one end of the elastic hose and the fish framework 5
It is connected, the other end is connected with 1 inner bottom part of fish frame, 2 one end of the drawstring passes through the fish framework 5 and the elastic hose 8
Internal to be connected with 1 inner bottom part of fish frame, its other end is wrapped on the runner 9, and the runner 9 is connected with the motor 4,
The motor 4 controls the lifting of the fish frame 1, the drawstring 2 by controlling the drawstring 2 being wrapped on the runner 9
Can be vertically movable in the fish framework 5.It is provided with a flexible clamp piece 6 on the drawstring 2, the flexible clamp piece 6 is claw type, institute
State the fish framework aperture 51 of a part for flexible clamp piece 6 through described 5 one end of fish framework, flexible clamp piece 6 described in the present embodiment
Card holder 61 partially pass through the fish framework aperture 51 of described 5 one end of fish framework, the card holder 61 is the flexible clamp piece 6
Claw.
The fish frame lid 3 is barrel-shaped for what Open Side Down, and its opening is matched more than 1 barrel of footpath of the fish frame and with the fish frame 1
Close, the fish frame lid 3 includes drum head 32 and bucket wall 31.The fish frame lid 3 is provided centrally with a fish frame lid centre bore 33, the fish
Framework 5 passes through the fish frame lid centre bore 33, and the fish frame lid 3 is fixed on the card holder 61 for stretching out the fish framework aperture 51
On., in original state, the fish frame lid 3 is not closed with the fish frame 1, there is space between the two for the fishing device.It is described
Multiple holes are provided with fish frame lid 3, reduce its resistance in water exercise.The fish frame lid 3 can be prevented in fishing operations
Fish escapes.
The pressure transducer 7 is connected with the drawstring 2, and is fixed on the fish through the aperture on the fish framework 5
On framework 5.7 outer wrap of the pressure transducer has bait, and the pressure transducer 7 can be triggered when fish pecks bait, triggering
Afterwards, trigger message is passed to the pressure transducer 7 control system of the motor 4, so as to controlled motor 4 is rotated.
The distance of the pressure transducer 7 and 3 vertical direction of fish frame lid is h, and its needs swims out of fish frame 1 according to fish
The time t2 that shortest time t1 and fish frame 1 are closed with fish frame lid 3 is setting.
The shortest time t1 that wherein fish swims out of fish frame 1 is：
The time t2 that the fish frame 1 is closed with the fish frame lid 3 is：
Wherein VGSubsidence velocity when not acted on by external force in water for the fish frame lid 3, its computing formula is：
VG=a × t1
Wherein a is the acceleration sunk when the fish frame lid 3 is not acted on by external force in water, and which in computing formula is：
Work as t1=t2When, fish can be captured by fishing device, therefore
Determine that the height that pressure transducer is arranged for h is from above-mentioned formula：
Wherein, s is the length of the fish frame lid bucket wall 31, and r is the radius of the fish frame lid drum head 32, VLFor fish frame 1 to
The speed of upper motion, x is the distance of described 3 barrels of wall lower ends of fish frame lid to 1 vertical direction of fish frame, VYFor the most fast of fish swimming
Speed, g are acceleration of gravity, and density of material of the ρ for fish frame lid 3, V are the displacement of volume that fish frame lid 3 is entered in water, and m is fish frame
The quality of lid 3.
After the height h is according to formula determination, space can be closed before fish escapes from the fishing device, raising is caught
The success rate of fish, and close when fish reaches fishing device edge, will not fish be caused to damage, the damage of fish when reducing fishing
Rate.
The present invention the course of work be：Will be the fishing device submerged in water, fish frame lid 3 and the fish frame during original state
1 separates, and there is the space that swim across can fish.When fish is swum in fish frame 1, pressure transducer 7, triggering are triggered when bait is pecked
Afterwards, trigger message is passed to the pressure transducer 7 control system of the motor 4, and the control system controls the electricity
Machine 4 runs, and the motor 4 controls the runner 9 and rotates, and drawstring 2 is wrapped on runner 9, pulls fish frame 1 with this, due to fish frame
Frame 5 is connected with the fish frame 1 by elastic hose 8, and when fish frame 1 is moved, elastic hose 8 shrinks, and plays cushioning effect, fish framework 5
Original resting state is kept, so as to produce relative motion with the drawstring 2, therefore, the flexible clamp piece 6 being arranged on drawstring 2
Move together with drawstring 2, the card holder 61 departs from fish framework aperture 51 so that fish frame lid 3 is separated with the fish framework 5, fish frame
Lid 3 is moved downward, and is closed up with the fish frame 1 for moving upwards, most fish capture at last.
The design of fish frame of the present invention, fish hook, fishing net in different and traditional fishing, traditional fishing can cause a setting loss to fish
Wound, and the present invention will not produce injury to fish in fishing operations；Bait is pecked by fish and triggers fishing device switch, increase capture fish
Probability；As the flexible clamp piece 6 in fish framework 5 is designed so that fish frame lid 3 is fixed on fish framework 5, deposit with the fish frame 1
In space so that fish can enter fishing device from space of the fish frame lid 3 with fish frame 1；Fish framework 5 is with the fish frame 1 by described
Elastic hose 8 is connected, and fish framework 5 is shortened with drawstring 2 and is risen, simultaneously because the buffering of the elasticity soft 8 is made
With flexible clamp piece 6 being departed from fish framework 5, so that fish frame lid 3 is no longer secured on fish framework 5 so that fish frame 1 and the fish
Frame lid 3 is closed, so as to capture and which not damaged fish.
Reflect that incomplete, aquatile investigation work amount is big, refer to solve chemical index during rivers health status judge
Mark chooses not science, the reflection non-intuitive problem of health status, and the quickly river health microbial administration a kind of directly perceived for providing
Method.
Quickly river health microbial administration method directly perceived is realized according to the following steps：
1. Biological indicators screening
Fish are located at aquatile food chain top, the features such as with economic worth height, life-span length, strong mobility, together
When some endemic species and cleaning kind of Fish water quality and environmental change are obvious responsed to, with stronger river health microbial administration
Effect.Therefore, in some river health assessments, Fish index has been assigned bigger weight.Meanwhile, the concerned degree of Fish
Height, the public whether can to judge river health come " directly perceived " by the change of these Fish quantity, compensate for public's feelings and pass
The discordance of system water quality index, improves the enthusiasm that the public protects water environment.Based on the above-mentioned characteristic of Fish index, according to
The Fish Communities compositing characteristic in different type river, chooses following index to indicate river health：1. total catch：Refer in regulation
The individual amount of all Fish is captured in time using certain method；2. local catch by species：Refer to
Determine the individual amount that method captures one or more local peculiar fingerling.Here, concrete rule are not made to Fish catching method
It is fixed, but the method for step 1 must be identical with the method for step 2.
But need to study the quantity and species of fish in river in the method, while to fish no longer in fishing operations
The injury that class is caused, therefore fished using the fishing device being used in quickly river health microbial administration method directly perceived.
The fishing device includes fish frame 1, drawstring 2, fish frame lid 3, fish framework 5, flexible clamp piece 6, pressure transducer 7, elasticity
Flexible pipe 8, runner 9 and motor 4.
The fish frame 1 is barrel-like structure, to capture Fish, arranges the aperture that several fishes cannot be walked thereon, is reduced described
Resistance of the fish frame 1 in water exercise.
The fish framework 5 is tubular structure, and its one end is connected with the elastic hose 8, and multiple fishes are provided with the other end
Framework aperture 51.8 one end of the elastic hose is connected with the fish framework 5, and the other end is connected with 1 inner bottom part of fish frame, institute
State 2 one end of drawstring to be connected with 1 inner bottom part of fish frame through inside the fish framework 5 and the elastic hose 8, its other end is twined
It is wound on the runner 9, the runner 9 is connected with the motor 4, the motor 4 is wrapped on the runner 9 by control
Controlling the lifting of the fish frame 1, the drawstring 2 can be vertically movable in the fish framework 5 for the drawstring 2.On the drawstring 2
A flexible clamp piece 6 is provided with, the flexible clamp piece 6 is claw type, and a part for the flexible clamp piece 6 is through the fish framework 5 one
The fish framework aperture 51 at end, the card holder 61 of flexible clamp piece 6 described in the present embodiment partially pass through the described of described 5 one end of fish framework
Fish framework aperture 51, claw of the card holder 61 for the flexible clamp piece 6.
The fish frame lid 3 is barrel-shaped for what Open Side Down, and its opening is matched more than 1 barrel of footpath of the fish frame and with the fish frame 1
Close, the fish frame lid 3 includes drum head 32 and bucket wall 31.The fish frame lid 3 is provided centrally with a fish frame lid centre bore 33, the fish
Framework 5 passes through the fish frame lid centre bore 33, and the fish frame lid 3 is fixed on the card holder 61 for stretching out the fish framework aperture 51
On., in original state, the fish frame lid 3 is not closed with the fish frame 1, there is space between the two for the fishing device.It is described
Multiple holes are provided with fish frame lid 3, reduce its resistance in water exercise.The fish frame lid 3 can be prevented in fishing operations
Fish escapes.
The pressure transducer 7 is connected with the drawstring 2, and is fixed on the fish through the aperture on the fish framework 5
On framework 5.7 outer wrap of the pressure transducer has bait, and the pressure transducer 7 can be triggered when fish pecks bait, triggering
Afterwards, trigger message is passed to the pressure transducer 7 control system of the motor 4, so as to controlled motor 4 is rotated.
The distance of the pressure transducer 7 and 3 vertical direction of fish frame lid is h, and its needs swims out of fish frame 1 according to fish
The time t2 that shortest time t1 and fish frame 1 are closed with fish frame lid 3 is setting.
The shortest time t1 that wherein fish swims out of fish frame 1 is：
The time t2 that the fish frame 1 is closed with the fish frame lid 3 is：
Wherein VGSubsidence velocity when not acted on by external force in water for the fish frame lid 3, its computing formula is：
VG=a × t1
Wherein a is the acceleration sunk when the fish frame lid 3 is not acted on by external force in water, and which in computing formula is：
Work as t1=t2When, fish can be captured by fishing device, therefore
Determine that the height that pressure transducer is arranged for h is from above-mentioned formula：
Wherein, s is the length of the fish frame lid bucket wall 31, and r is the radius of the fish frame lid drum head 32, VLFor fish frame 1 to
The speed of upper motion, x is the distance of described 3 barrels of wall lower ends of fish frame lid to 1 vertical direction of fish frame, VYFor the most fast of fish swimming
Speed, g are acceleration of gravity, and density of material of the ρ for fish frame lid 3, V are the displacement of volume that fish frame lid 3 is entered in water, and m is fish frame
The quality of lid 3.
The course of work for the fishing device in quickly river health microbial administration method directly perceived is：By the fishing device
Submerged in water, during original state, fish frame lid 3 is separated with the fish frame 1, and there is the space that swim across can fish.When fish swims over to
In fish frame 1, pressure transducer 7 is triggered when bait is pecked, after triggering, trigger message is passed to described by the pressure transducer 7
The control system of motor 4, the control system control the motor 4 and run, and the motor 4 controls the runner 9 and rotates, drawstring
2 are wrapped on runner 9, pull fish frame 1 with this, as fish framework 5 is connected with the fish frame 1 by elastic hose 8, when fish frame 1
During motion, elastic hose 8 shrinks, and plays cushioning effect, and fish framework 5 keeps original resting state, so as to produce with the drawstring 2
Relative motion, therefore, the flexible clamp piece 6 being arranged on drawstring 2 is moved together with drawstring 2, and it is little that the card holder 61 departs from fish framework
Hole 51 so that fish frame lid 3 is separated with the fish framework 5, fish frame lid 3 is moved downward, and is closed up with the fish frame 1 for moving upwards, finally
Fish is captured.
The design of the fishing device fish frame, fish hook, fishing net in different and traditional fishing, traditional fishing can cause one to fish
Setting loss is hindered, and the present invention will not produce injury to fish in fishing operations；Bait is pecked by fish and triggers fishing device switch, increase is caught
Obtain the probability of fish；As the flexible clamp piece 6 in fish framework 5 is designed so that fish frame lid 3 is fixed on fish framework 5, with the fish frame
1 has space so that fish can enter fishing device from space of the fish frame lid 3 with fish frame 1；Fish framework 5 passes through institute with the fish frame 1
State elastic hose 8 to be connected, fish framework 5 is shortened with drawstring 2 and is risen, simultaneously because the buffering of the elasticity soft 8
Effect, flexible clamp piece 6 is departed from into fish framework 5, so that fish frame lid 3 is no longer secured on fish framework 5 so that fish frame 1 with it is described
Fish frame lid 3 is closed, so as to capture and which not damaged fish.So utilize and refer to for quickly river health biology directly perceived
Show that fish is captured by the fishing device in method, then its quantity, species can be calculated and classified.
2. Biological indicators reference value determines
The determination of Biological indicators reference value adopts following methods：Choose reference point in different types of river respectively, pass through
Using total catch and endemic species fishery harvesting quantity two indices with identical method measurement reference point in step 1, index is obtained
Reference value.Here, the definition of reference point can be：Within the specific limits without or without obvious mankind's activity interference, water quality and
The sampled point of aquatile habitat situation equivalent or access expansion state.The selection of reference point should be as far as possible true using quantization method
It is fixed, i.e., determined by measuring water quality index and habitat index.Such as the reference point without the condition of being adapted to, then should be provided according to pertinent literature
The method that material, historical data and expert opinion combine, determines the reference value of Biological indicators.
3. Biological indicators Health Category is passed judgment on
Biological indicators Health Category is passed judgment on and is adopted with the following method：If in a certain type river, a sampled point total catch refers to
A is designated as, local catch by species index is b, and reference point total catch index is R1, and local catch by species index is R2, then this is adopted
The total catch index of sampling point must be divided into the ratio of a and Ra, i.e. a/R1；Local catch by species index must be divided into the ratio of b and R2,
That is b/R2.As invasion Fish in other places may be included in total catch index in some cases, it is impossible to completely true to reflect
The hydrobiological health status in river, and the quantity of endemic species Fish more can truly reflect the health status in the type river, because
Local catch by species index score (b/R2) is given higher weight when Biological indicators health score value Bio_H is calculated by this：
Bio_H=(weight 1) × (a/R1)+(weight 2) × (b/R2)
Wherein, the big I of weight determined by expert consulting method, but weight 2 should be greater than weight 1.
When Bio_H values are 0～0.2, the sampled point Biological indicators Health Category is " very poor "；Bio_H values be 0.2～
When 0.4, the sampled point Biological indicators Health Category is " poor "；When Bio_H values are 0.4～0.6, the sampled point Biological indicators are good for
Health grade is " general "；When Bio_H values are 0.6～0.8, the sampled point Biological indicators Health Category is " preferable "；Bio_H values are
When 0.8～1, the sampled point Biological indicators Health Category is " fine ".
4. river health grade Comprehensive Evaluation
The state of Fish index reflects the hydrobiological health status in river, be pass judgment on rivers health status key according to
According to.On this basis, using physical and chemical index as auxiliary foundation, Comprehensive Evaluation river health grade.Physical and chemical index
Health Category determination methods are consistent with the method for step 2 and 3：The reference value of physical and chemical index is determined first, then basis
Sampled point monitor value and the ratio of reference value, determine the healthy score value PC_H of thing amount chemical index.The health of thing amount chemical index
Grade is divided into two classes：When PC_H values are 0～0.6, physical and chemical index Health Category is " bad "；When PC_H values are 0.6～1,
Physical and chemical index Health Category is " good ".The river health grade of physical and chemical index and Fish index is combined by with lower section
Method is determined：
When physical and chemical index Health Category is " good ", then river health grade is consistent with Biological indicators Health Category；
When thing amount chemical index Health Category is " bad ", if Fish index Health Category is " fine " or " preferable ",
It is " preferable " or " general " that then river health grade declines a grade；
When thing amount chemical index Health Category be " bad " when, if Fish index Health Category be " general ", " poor " or
" very poor ", then river health grade is consistent with Fish index Health Category.
The Fish index that river health microbial administration method is adopted directly perceived quickly substantially, is recognized due to piscine organism feature
Degree is high, is not required to, through special Sample preservation and taxonomic identification, to obtain, therefore judge using the index when sampling at the scene
River health is easy to be quick, workable, is adapted to various types of rivers, it is easy to promote.Meanwhile, total catch and endemic species
Catch intuitively embodies the health status in river, compensate for the public for conventional physical chemical index, complex biological index are recognized
The low problem of degree of knowing, is conducive to promoting public participation central to river environment protection.The method with Biological indicators as Main Basiss,
It is auxiliary foundation Comprehensive Evaluation rivers health status with physicsizations index, embodies the river ring with Ecology health as theory
Purpose is protected in border, affects the water quality pressure of aquatile health while being capable of identify that, with relatively strong scientific and novelty.
In the quickly river health microbial administration method directly perceived, two kinds of Fish of total catch and local catch by species refer to
Obtain by when being marked on scene, it is simple and quick, it is easy to operate, it is easy to promote.And according to the healthy score value of Fish index, quickly can sentence
Disconnected rivers health status, Fish index is easy-to-understand, consistent to the direct feel of river health " many fishes of fish are few " with the public.Simultaneously
With Fish index as Main Basiss, water body physical and chemical index is auxiliary foundation to the method, it is considered to which factor is more comprehensive, embodies
River health assessment new concept based on protection Ecology health.
Presently preferred embodiments of the present invention is the foregoing is only, is merely illustrative for the purpose of the present invention, and it is non-limiting
's.Those skilled in the art understanding, can carry out many changes to which in the spirit and scope limited by the claims in the present invention,
Modification, in addition it is equivalent, but fall within protection scope of the present invention.
Claims (10)
1. a kind of fishing device in quickly river health microbial administration method directly perceived, it is characterised in that including a fish frame,
One drawstring, a flexible clamp piece, a fish frame lid, a motor and a pressure transducer；
The fish frame, its inner bottom part are connected with described drawstring one end；
The drawstring, its one end are connected with the fish frame, and the other end is connected with the motor, and the motor is by the drawstring control
Make the lifting of the fish frame；
The flexible clamp piece, which is arranged on the drawstring, to the fixation fish frame lid；
The fish frame lid, its center are provided with a fish frame lid centre bore, and the flexible clamp piece passes through the fish frame lid centre bore by institute
State fish frame lid to fix；
The pressure transducer, which is arranged on the drawstring, controls the operation of the motor；The pressure transducer with it is described
The distance of fish frame lid vertical direction is h, and its computing formula is：
Wherein, s is the length of the fish frame lid bucket wall, and r is the radius of the fish frame lid drum head, VLMoved for the fish frame upwards
Speed, x is the distance of the fish frame lid bucket wall lower end to the fish frame vertical direction, VYFor the prestissimo of fish swimming, g is
Acceleration of gravity, ρ are the density of material of the fish frame lid, and V is the displacement of volume that the fish frame lid is entered in water, and m is the fish
The quality of frame lid.
2. the fishing device in quickly river health microbial administration method directly perceived according to claim 1, its feature
It is that the fish frame lid outer wrap has the fish framework of a tubulose, described fish framework one end is connected with an elastic hose, the other end
Multiple fish framework apertures are provided with, the pressure transducer passes through fish framework aperture described in and is fixed on the fish framework
On, the drawstring can be moved in the fish framework.
3. the fishing device in quickly river health microbial administration method directly perceived according to claim 2, its feature
It is that the elastic hose is wrapped in outside the drawstring, described elastic hose one end is connected with the fish inframe bottom, another
End is connected with the fish framework.
4. the fishing device in quickly river health microbial administration method directly perceived according to claim 3, its feature
It is that the flexible clamp piece is claw type, and the part-structure of the flexible clamp piece is stretched out from the fish framework aperture, to the fish frame
Lid is fixed.
5. the fishing device in quickly river health microbial administration method directly perceived according to claim 1 and 2, which is special
Levy and be, on the motor, be provided with a runner, be connected with the drawstring by the runner, the motor is described by control
The length that runner rotates to control the drawstring straight portion.
6. the fishing device in quickly river health microbial administration method directly perceived according to claim 5, its feature
It is, barrel-like structure of the fish frame for opening upwards, and on the fish frame, is provided with several apertures, reduces the fish frame in water
Resistance during middle motion.
7. the fishing device in quickly river health microbial administration method directly perceived according to claim 6, its feature
It is that the fish frame lid is the barrel-like structure that Open Side Down, and its opening diameter is more than the fish frame bucket footpath.
8. the fishing device in quickly river health microbial administration method directly perceived according to claim 7, its feature
It is that the pressure transducer outer wrap has bait, to attract Fish.
9. the fishing device in quickly river health microbial administration method directly perceived according to claim 8, its feature
It is to be provided with multiple holes on the fish frame lid, to reduce its resistance in water exercise.
10. the fishing device in quickly river health microbial administration method directly perceived according to claim 9, its feature
It is that density of the fish frame cover material density more than water, the fish frame are covered and sunk in water when not acted on by external force, to add
The speed fish frame lid is closed with the fish frame.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510350468.8A CN104982393B (en) | 2015-06-23 | 2015-06-23 | A kind of fishing device in quickly river health microbial administration method directly perceived |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510350468.8A CN104982393B (en) | 2015-06-23 | 2015-06-23 | A kind of fishing device in quickly river health microbial administration method directly perceived |
Publications (2)
| Publication Number | Publication Date |
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| CN104982393A CN104982393A (en) | 2015-10-21 |
| CN104982393B true CN104982393B (en) | 2017-04-05 |
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| CN201510350468.8A Expired - Fee Related CN104982393B (en) | 2015-06-23 | 2015-06-23 | A kind of fishing device in quickly river health microbial administration method directly perceived |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112161683B (en) * | 2020-09-23 | 2022-03-29 | 株洲华利生态农牧发展有限公司 | Intelligent weighing device for fixed-point fixed-track of livestock |
| CN112243915B (en) * | 2020-11-03 | 2022-05-06 | 浙江海洋大学 | Purse net catching device and using method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831774A (en) * | 1987-06-04 | 1989-05-23 | Gonzales Thomas R | Marine life trap |
| US5555666A (en) * | 1994-07-22 | 1996-09-17 | Glatzer; Mark | Crab fishing by remote monitoring |
| CN203618592U (en) * | 2013-11-29 | 2014-06-04 | 马玉华 | Folding lifting net with escape prevention function |
| CN203762091U (en) * | 2014-01-13 | 2014-08-13 | 中国长江三峡集团公司 | Lifting type Jiang net auxiliary sampling device for early-stage fish resources |
| CN204206941U (en) * | 2014-09-24 | 2015-03-18 | 威海海斯特钓具股份有限公司 | Light auxiliary trapping fish pot |
-
2015
- 2015-06-23 CN CN201510350468.8A patent/CN104982393B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831774A (en) * | 1987-06-04 | 1989-05-23 | Gonzales Thomas R | Marine life trap |
| US5555666A (en) * | 1994-07-22 | 1996-09-17 | Glatzer; Mark | Crab fishing by remote monitoring |
| CN203618592U (en) * | 2013-11-29 | 2014-06-04 | 马玉华 | Folding lifting net with escape prevention function |
| CN203762091U (en) * | 2014-01-13 | 2014-08-13 | 中国长江三峡集团公司 | Lifting type Jiang net auxiliary sampling device for early-stage fish resources |
| CN204206941U (en) * | 2014-09-24 | 2015-03-18 | 威海海斯特钓具股份有限公司 | Light auxiliary trapping fish pot |
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| Publication number | Publication date |
|---|---|
| CN104982393A (en) | 2015-10-21 |
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