CN110235808A - A method of diving investigation islands and reefs area coral section - Google Patents
A method of diving investigation islands and reefs area coral section Download PDFInfo
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- CN110235808A CN110235808A CN201910394640.8A CN201910394640A CN110235808A CN 110235808 A CN110235808 A CN 110235808A CN 201910394640 A CN201910394640 A CN 201910394640A CN 110235808 A CN110235808 A CN 110235808A
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- 235000014653 Carica parviflora Nutrition 0.000 title claims abstract description 126
- 241000243321 Cnidaria Species 0.000 title claims abstract description 115
- 238000011835 investigation Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 46
- 230000009189 diving Effects 0.000 title claims abstract description 33
- 244000132059 Carica parviflora Species 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000011160 research Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 16
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 239000013049 sediment Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 7
- 238000012800 visualization Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- 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
- A01K61/00—Culture of aquatic animals
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- 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
- A01K61/00—Culture of aquatic animals
- A01K61/90—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
The invention discloses a kind of methods of diving investigation islands and reefs area coral section, it is desirable to provide one kind can effective guarantee diver safety, security performance is high;It is big to investigate section area coverage, investigation efficiency can be improved;Universality is wide, the method for the diving investigation islands and reefs area coral section applied suitable for different hydrological environment sea areas.It is successively the following steps are included: (one), investigation section is determining and positions, along vertical coastline direction in seabed laying scale rope, to determine and position investigation section;(2) underwater observation and record coral type and quantity, observe and record coral type and quantity to the ground using three diver's dives;(3) coral type, coral quantity and the coral cover (CD) in investigation section are determined, wherein the coral type in investigation section is the coral type of three divers record;Investigate the coral quantity that the coral quantity (Ti) in section is three divers record;Coral cover (CD), CD=Ti/SA.
Description
Technical field
The present invention relates to marine resources investigations and research field, and in particular to a kind of dive under water investigates islands and reefs area coral section
Method.
Background technique
Currently, carrying out the means of investigation and research for ocean space or resource, there are two main classes: one kind is contact tune
Cha Fa is more traditional investigation method, obtains related data by acquisition target;Another kind of is untouchable investigation
Method is to obtain number by means such as Underwater Camera, satellite remote sensing, acoustics based on visualization or detectable technique for investigation
According to the development of underwater visualization investigation (UVC) technology, the technologies such as underwater robot and underwater camera have been widely used in
In the observation in seabed.Underwater robot (ROV) technology is the undersea detection technology gradually risen in recent years, be based on imaging system into
Row analysis or measurement, but this technology has certain limitation, the contingency and repeatability such as captured, and Cross-sectional studies
Stability line measurement is carried out because being influenced to ensure by ocean current in the process.The observation of underwater camera technology is a kind of nondestructive water
(UVC) method is investigated in lower visualization, and diver's investigation will not generate too big effect of driving to it, but investigation result there are still
Certain limitation, is mainly reflected in: firstly, the case where video and photo have the emphasis of focusing, and what can be presented is focal zone;
Secondly, the deviation that the analysis of the data of video and photo judges there are the later period, though it can be made up by multiple video clips,
It inevitably will appear the careless omission of repeated observation.
Summary of the invention
It, being capable of effective guarantee the purpose of the invention is to provide a kind of method of diving investigation islands and reefs area coral section
Diver's safety, security performance are high;It is big to investigate section area coverage, investigation efficiency can be improved;Universality is wide, is suitable for different water
It is applied in literary environment sea area.
The technical scheme is that
A method of diving investigation islands and reefs area coral section, successively the following steps are included:
(1), investigation section is determining and positions, and scale rope is laid in seabed along vertical coastline direction, to determine and position investigation
Section;The both ends of the scale rope are connected with fixed anchor, specifically, firstly, inciting somebody to action after research vessel reaches investigation sea area or region
The fixation anchor of scale rope first end throws the initial point position in offshore;Then, research vessel is along vertical coastline direction toward offshore one
Skidding is sailed, and the scale rope being connected with the fixation anchor of initial point position is straightened in the operator on research vessel in this process, and
Gradually scale rope is discharged into it is marine, after research vessel drives to setting position, by the fixation anchor of scale rope second end throw from
The final position of bank, to lay the scale rope perpendicular to coastline direction in seabed;It so, it is possible to guarantee scale rope along vertical
Coastline direction lineal layout, is not influenced by ocean current, is applied suitable for different hydrological environment sea areas, universality is wide;
(2) underwater observation and record coral type and quantity,
Coral type and quantity are observed and recorded to the ground using three diver's dives, are carved wherein a diver is located at
The surface of rope is spent, in addition two divers are located at the two sides of scale rope, and two adjacent divers pass through connection with a scale
Rope is connected, and the length of connecting rope is twice of the horizontal visibility (HV) in the seabed where scale rope;Three divers are by originating
Point position is moved about along scale rope toward final position side by side parallel, keeps connecting rope to be in tensioned state in this process, simultaneously
Every diver observe and record its it is observed that in the range of coral type and quantity;
In this way, passing through the connected underwater exchange and parallel shifting for being not only convenient for diver of connecting rope with a scale using three divers
It is dynamic, and can effectively ensure diver's safety, the various emergency situations occurred in fact-finding process can be successfully managed, for example,
When emergency situations occurs in a certain position diver, it can be exchanged by connecting rope with other divers, enable other divers
It is enough timely to take measures to be handled, sue and labour, to ensure that diver's safety, security performance are high;
In addition, in addition two divers are located at the two sides of scale rope since a wherein diver is located at the surface of scale rope,
Two adjacent divers are connected by connecting rope with a scale, and the length of connecting rope is the horizontal energy in the seabed where scale rope
Twice of degree of opinion (HV), and the process that three divers are moved about along scale rope toward final position side by side parallel from initial point position
In, keep connecting rope to be in tensioned state, in this process, every diver observes can observe on its left and right sides direction
Coral type and quantity in the range of arriving, i.e. the area SA=2HV × F for the investigation section that every diver observes, HV are to carve
The horizontal visibility in the seabed where degree rope, F are the length of scale rope, in this way, diver's observation can be improved to the greatest extent
The area of the investigation section arrived, improves investigation efficiency, provides relatively reliable data branch for investigation sea area coral type and quantity
Support;Simultaneously as the length of connecting rope is twice of the horizontal visibility (HV) in seabed, in this way, can guarantee three divings
The coral type in the region between member can be observed with quantity, and can be weighed to avoid between two neighboring diver
Multiple observation, and the problem of the accuracy for the coral type and quantity that influence is observed;
(3) coral type, coral quantity and the coral cover (CD) in investigation section are determined, wherein
Investigate the coral type that the coral type in section is three divers record;
Investigate the coral quantity that the coral quantity (Ti) in section is three divers record;
Coral cover (CD), CD=Ti/SA, wherein
Ti is the coral quantity investigated in section,
SA is the area for investigating section, and SA=2HV × N × F, HV are the horizontal visibility in the seabed where scale rope, and N is diving
Member's number, F are the length of scale rope.
The method of the diving investigation islands and reefs area coral section of this programme, using three divers, operation can be protected effectively together
Hinder diver's safety, security performance is high;It is moved about using three divers along scale rope side by side parallel, two adjacent divers are logical
It crosses connecting rope with a scale to be connected, the length of connecting rope is twice of the horizontal visibility (HV) in the seabed where scale rope, such as
This can effectively improve investigation section area coverage, and investigation efficiency can be improved;Using the determination of scale rope and positioning investigation section, and
By diver's dive operation, universality is wide, applies suitable for different hydrological environment sea areas.
Preferably, the diver positioned at the surface of scale rope, should while observing coral in (two) step
Diver records the scale on the scale rope of its position;The sum of the vertical range of the scale and initial point position to seashore,
Offshore distance when as diver observes coral, i.e. the offshore distance of coral.
Preferably, the diver positioned at scale rope two sides stops when observing coral along scale in (two) step
The direction travelling for restricting parallel, then moves about along the direction vertical with scale rope at scale rope, and record the scale rope of the position
On scale;The scale and initial point position to the sum of the vertical range of seashore, as diver observe offshore when coral
Distance, i.e. the offshore distance of coral.
As another preferred embodiment, wherein a diver wears underwater camera, which is being located at scale rope just
Top, in addition two divers wear underwater display, and underwater display is connected by signal wire with underwater camera,
The underwater camera is used to show the scale rope image of underwater camera shooting for shooting scale rope, underwater display, with
The diver positioned at the two sides of scale rope is set to pass through underwater display Synchronous scale rope;In (two) step, it is located at scale
The diver of rope two sides observes the scale on scale rope when observing coral, through underwater display, and records underwater display
The scale on scale rope that device is shown at this time.In this way, the diver being located at left and right sides of scale rope can pass through underwater display
With the diver for the surface for being located at scale rope, Synchronous scale rope, when the diver for being located at scale rope two sides is observing
When coral, the scale on scale rope can be observed by underwater display, and record the scale rope that underwater display is shown at this time
On scale, to obtain the offshore distance of coral.
Preferably, every diver respectively wears dive computer table, in (two) step, every diver is being observed
While coral, which records the depth of water, water temperature and sediment types of its position by the dive computer table worn.
Preferably, every diver's head-mount has Underwater Camera, shot by Underwater Camera.In this way,
Can be by Underwater Camera into shooting, tradition is most effective, record of most accurately diving under water (is taken the photograph under water with underwater visualization investigation
Camera) highly merge, by the video shot to Underwater Camera, carries out interpretation and count coral type and coral quantity (example
Interpretation and counting are such as carried out to shooting video using Jiugongge method), and be compared with the data of diving record, finally determine coral
Coral type, the quantity of coral, coral cover and other information relevant to coral, to improve the accuracy of data.
Preferably, several clump weights have been hung on scale rope, so that scale rope is tightly attached to seabed.So, it is ensured that
Scale rope is tightly attached to seabed.
Preferably, the both ends of scale rope are respectively equipped with a floating ball, floating ball is connected by the end of connecting line and scale rope
It connects, floating ball floats across the sea, for demarcating the position on the water surface.In this way, can be convenient with ship personnel's observation survey section
Position can also be lifted scale rope by floating ball, after a certain Cross-sectional studies in order to recycle the scale rope in seabed.
Preferably, the position for demarcating starting point by GPS locator with ship personnel in (one) step, on research vessel
With the position of terminal.
Preferably, in (one) step, the investigation date with ship personnel record's initial point position on research vessel, investigation
Time, longitude and latitude, the depth of water, salinity and water temperature information.
The beneficial effects of the present invention are: using three divers together operation can effective guarantee diver safety, safety
Performance is high;It is moved about using three divers along scale rope side by side parallel, two adjacent divers pass through connecting rope with a scale
It is connected, the length of connecting rope is twice of the horizontal visibility (HV) in the seabed where scale rope, so can effectively improve tune
Section area coverage is looked into, investigation efficiency can be improved;Using the determination of scale rope and positioning investigation section, and made by diver's dive
Industry, universality is wide, applies suitable for different hydrological environment sea areas;Tradition is most effective, most accurately dive under water record and water
Lower visualization investigation (Underwater Camera) height merges, and by the video shot to Underwater Camera, carries out interpretation and counts coral
Coral type and coral quantity (interpretation and counting are carried out to shooting video for example, by using Jiugongge method), and the data with diving record
It is compared, it is final to determine coral type, the quantity of coral, coral cover and other information relevant to coral, to mention
The accuracy of high data.
Detailed description of the invention
Fig. 1 is that a kind of a kind of structure of the method for diving investigation islands and reefs area coral section of the invention during the process of the investigation is shown
It is intended to.
In figure:
Scale rope 1;
Fixed anchor 2;
Clump weight 3
Floating ball 4.
Specific embodiment
To keep technical solution of the present invention embodiment purposes, technical schemes and advantages clearer, with reference to the accompanying drawing to this
The technical solution of inventive embodiments carries out clearly explanation and illustration, but following embodiments are merely a preferred embodiment of the present invention,
Rather than whole embodiments.Based on the implementation example in the implementation mode, those skilled in the art are not making creative work
Under the premise of obtained other embodiments, belong to protection scope of the present invention.
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining this programme, and cannot be construed to the limitation to the present invention program.
Referring to following description and drawings, it will be clear that these and other aspects of the embodiment of the present invention.In these descriptions
In attached drawing, some particular implementations in the embodiment of the present invention are specifically disclosed to indicate to implement the embodiment of the present invention
Principle some modes, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary, reality of the invention
Applying example includes all changes, modification and the equivalent fallen within the scope of the spirit and intension of attached claims.
In the description of the present invention, it is to be understood that, term " thickness ", "upper", "lower", "horizontal", "top", "bottom",
The orientation or positional relationship of the instructions such as "inner", "outside", " circumferential direction " be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In the description of the present invention, " multiple "
It is meant that at least two, such as two, three etc., unless otherwise specifically defined, " several " are meant that expression one
Or it is multiple.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral: can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other;It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
Specific embodiment one: as shown in Figure 1, a kind of method of diving investigation islands and reefs area coral section, successively includes following
Step:
(1), investigation section is determining and positions, and scale rope 1 is laid in seabed along vertical coastline direction, to determine and position tune
Look into section;The both ends of the scale rope are connected with fixed anchor 2, specifically,
Firstly, the fixation anchor of scale rope first end is thrown the starting point in offshore after research vessel reaches investigation sea area or region
Position (initial point position is to investigate the initial point position of section);
Then, research vessel is travelled along vertical coastline direction toward offshore side, in this process the operator on research vessel
The scale rope being connected with the fixation anchor of initial point position is straightened, and gradually scale rope is discharged into it is marine, when research vessel drives to
Behind setting position, the fixation anchor of scale rope second end is thrown and (as investigates section in the final position in the final position of offshore
Final position), to lay the scale rope perpendicular to coastline direction in seabed;It so, it is possible to guarantee scale rope along vertical sea
Water front direction lineal layout, is not influenced by ocean current, is applied suitable for different hydrological environment sea areas, universality is wide;
(2) underwater observation and record coral type and quantity,
Coral type and quantity are observed and recorded to the ground using three diver's dives, are carved wherein a diver is located at
The surface of rope is spent, in addition two divers are located at the two sides of scale rope, and two adjacent divers pass through connection with a scale
Rope is connected, and the length of connecting rope is twice of the horizontal visibility (HV) in the seabed where scale rope;Three divers are by originating
Point position is moved about along scale rope toward final position side by side parallel, keeps connecting rope to be in tensioned state in this process, simultaneously
Every diver observe and record its it is observed that in the range of coral type and quantity, specifically, every diver
Observe and record its left and right sides direction on it is observed that in the range of coral type and quantity;Specifically, every diving
Member carries data board dive, and the coral type and quantity that diver will be observed that are recorded on data board;
In this way, passing through the connected underwater exchange and parallel shifting for being not only convenient for diver of connecting rope with a scale using three divers
It is dynamic, and can effectively ensure diver's safety, the various emergency situations occurred in fact-finding process can be successfully managed, for example,
When emergency situations occurs in a certain position diver, it can be exchanged by connecting rope with other divers, enable other divers
It is enough timely to take measures to be handled, sue and labour, to ensure that diver's safety, security performance are high;
In addition, in addition two divers are located at the two sides of scale rope since a wherein diver is located at the surface of scale rope,
Two adjacent divers are connected by connecting rope with a scale, and the length of connecting rope is the horizontal energy in the seabed where scale rope
Twice of degree of opinion (HV), and the process that three divers are moved about along scale rope toward final position side by side parallel from initial point position
In, keep connecting rope to be in tensioned state, in this process, every diver observes can observe on its left and right sides direction
Coral type and quantity in the range of arriving, i.e. the area SA=2HV × F for the investigation section that every diver observes, HV are to carve
The horizontal visibility in the seabed where degree rope, F are the length of scale rope, in this way, diver's observation can be improved to the greatest extent
The area of the investigation section arrived, improves investigation efficiency, provides relatively reliable data branch for investigation sea area coral type and quantity
Support;Simultaneously as the length of connecting rope is twice of the horizontal visibility (HV) in seabed, in this way, can guarantee three divings
The coral type in the region between member can be observed with quantity, and can be weighed to avoid between two neighboring diver
Multiple observation, and the problem of the accuracy for the coral type and quantity that influence is observed;
(3) coral type, coral quantity and the coral cover (CD) in investigation section are determined, wherein
Investigate the coral type that the coral type in section is three divers record;
Investigate the coral quantity that the coral quantity (Ti) in section is three divers record;
Coral cover (CD), CD=Ti/SA, wherein
Ti is the coral quantity investigated in section,
SA is the area for investigating section, and SA=2HV × N × F, HV are the horizontal visibility in the seabed where scale rope, and N is diving
Member's number, F are the length of scale rope.
Above-mentioned (one), (two) and (three) step, the fact-finding process of as one investigation section.During factual survey,
Investigate the selection of section according to covering comprehensively, it is random uniformly, control stress point, take into account general section and lay principle, investigation section
Setting direction it is vertical with coastline, investigation section, which is uniformly distributed and cover, entirely investigates sea area or region, investigates the number of section
Amount no less than 3, the fact-finding process of each investigation section is referring to above-mentioned (one), (two) and (three) step, until preset tune
Looking into section, all investigation is completed.
Above-mentioned investigation section refers to that three divers are moved about along scale rope toward final position side by side parallel from initial point position
During observed by range.
Further, as shown in Figure 1, having hung several clump weights 3 on scale rope, so that scale rope is tightly attached to seabed.Such as
This, it is ensured that scale rope is tightly attached to seabed.
Further, as shown in Figure 1, the both ends of scale rope are respectively equipped with a floating ball 4, floating ball passes through connecting line and scale
The end of rope connects, and floating ball floats across the sea, for demarcating the position on the water surface.It is observed in this way, can be convenient with ship personnel
The position of investigation section can also be lifted scale rope by floating ball, after a certain Cross-sectional studies in order to recycle seabed
Scale rope.
Further, the position for demarcating starting point by GPS locator with ship personnel in (one) step, on research vessel
With the position of terminal.
Further, in (one) step, the investigation date with ship personnel record's initial point position on research vessel, investigation
Time, longitude and latitude, the depth of water, salinity and water temperature information.
Further, every diver respectively wears dive computer table, and in (two) step, every diver is being observed
While coral, which records the depth of water, water temperature and sediment types of its position, example by the dive computer table worn
Such as, chiltern substrate or shale substrate or rock matter substrate etc..After diver returns to research vessel, number in dive computer table can be exported
According to table, for example, the information such as every 5S mono- data, including the instantaneous depth of water, water temperature.
Every diver's head-mount has Underwater Camera, is shot by Underwater Camera.In this way, water can be passed through
Lower video camera is into shooting, and tradition is most effective, most accurate diving record and underwater visualization investigation (Underwater Camera) are highly
Fusion carries out interpretation and counts coral type and coral quantity (for example, by using nine palaces by the video shot to Underwater Camera
Lattice method carries out interpretation and counting to shooting video), and be compared with the data of diving record, it is final to determine coral type, coral
Quantity, coral cover and other information relevant to coral of coral, to improve the accuracy of data.
Specific embodiment two: the method reference specific embodiment one of the diving investigation islands and reefs area coral section of the present embodiment,
The difference is that:
In (two) step of specific embodiment one, the diver positioned at the surface of scale rope while observing coral,
The diver records the scale on the scale rope of its position;The scale and initial point position to seashore vertical range it
With offshore distance when as diver observes coral, i.e. the offshore distance of coral.
In (two) step of specific embodiment one, the diver positioned at scale rope two sides stops when observing coral
The direction parallel along scale rope is moved about, and is then moved about along the direction vertical with scale rope at scale rope, and record the position
Scale on scale rope;The sum of the vertical range of the scale and initial point position to seashore, when as diver observes coral
Offshore distance, i.e. the offshore distance of coral.
Specific embodiment three: the method reference specific embodiment one of the diving investigation islands and reefs area coral section of the present embodiment,
The difference is that:
Wherein a diver wears underwater camera, which is located at the surface of scale rope, in addition two divers
Underwater display is worn, underwater display is connected by signal wire with underwater camera, in the present embodiment, signal wire edge
Connecting rope extends, and is bundled in connecting rope, to avoid the underwater movement for influencing diver.Underwater camera is for shooting scale
Rope, underwater display are used to show the scale rope image of underwater camera shooting, so as to be located at the diver of the two sides of scale rope
Pass through underwater display Synchronous scale rope.
In (two) step of specific embodiment one, the diver positioned at the surface of scale rope is observing the same of coral
When, which records the scale on the scale rope of its position;The vertical range of the scale and initial point position to seashore
The sum of, offshore distance when as diver observes coral, i.e. the offshore distance of coral.
In (two) step of specific embodiment one, the diver positioned at scale rope two sides passes through when observing coral
Scale on underwater display observation scale rope, and record the scale on the scale rope that underwater display is shown at this time.In this way, position
Diver at left and right sides of scale rope can be synchronous to see by the diver of underwater display and the surface for being located at scale rope
Examine scale rope, when be located at scale rope two sides diver when observing coral, can pass through underwater display observe scale rope
On scale, and the scale on the scale rope that underwater display is shown at this time is recorded, to obtain the offshore distance of coral.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention
Technical spirit any simple modification, change and equivalent transformation to the above embodiments, still fall within the technology of the present invention side
The protection scope of case.
Claims (10)
1. it is a kind of diving investigation islands and reefs area coral section method, characterized in that successively the following steps are included:
(1), investigation section is determining and positions, and scale rope is laid in seabed along vertical coastline direction, to determine and position investigation
Section;The both ends of the scale rope are connected with fixed anchor, specifically,
Firstly, the fixation anchor of scale rope first end is thrown the starting point in offshore after research vessel reaches investigation sea area or region
Position;
Then, research vessel is travelled along vertical coastline direction toward offshore side, in this process the operator on research vessel
The scale rope being connected with the fixation anchor of initial point position is straightened, and gradually scale rope is discharged into it is marine, when research vessel drives to
Behind setting position, the fixation anchor of scale rope second end is thrown in the final position of offshore, to lay in seabed perpendicular to seashore
The scale rope in line direction;
(2) underwater observation and record coral type and quantity,
Coral type and quantity are observed and recorded to the ground using three diver's dives, are carved wherein a diver is located at
The surface of rope is spent, in addition two divers are located at the two sides of scale rope, and two adjacent divers pass through connection with a scale
Rope is connected, and the length of connecting rope is twice of the horizontal visibility (HV) in the seabed where scale rope,
Three divers are moved about along scale rope toward final position side by side parallel from initial point position, keep connection in this process
Rope be in tensioned state, while every diver observe and record its it is observed that in the range of coral type and quantity;
(3) coral type, coral quantity and the coral cover (CD) in investigation section are determined, wherein
Investigate the coral type that the coral type in section is three divers record;
Investigate the coral quantity that the coral quantity (Ti) in section is three divers record;
Coral cover (CD), CD=Ti/SA, wherein
Ti is the coral quantity investigated in section,
SA is the area for investigating section, and SA=2HV × N × F, HV are the horizontal visibility in the seabed where scale rope, and N is diving
Member's number, F are the length of scale rope.
2. a kind of method of diving investigation islands and reefs area coral section according to claim 1, characterized in that in (two) step
In, for the diver positioned at the surface of scale rope while observing coral, which records the scale of its position
Scale on rope.
3. a kind of method of diving investigation islands and reefs area coral section according to claim 2, characterized in that in (two) step
In, the diver positioned at scale rope two sides stops moving about along the parallel direction of scale rope, then edge and quarter when observing coral
Restrict vertical direction of degree is moved about at scale rope, and records the scale on the scale rope of the position.
4. a kind of method of diving investigation islands and reefs area coral section according to claim 2, characterized in that wherein dive for one
Water person wears underwater camera, which is located at the surface of scale rope, and in addition two divers wear underwater aobvious
Show that device, underwater display are connected by signal wire with underwater camera, the underwater camera is for shooting scale rope, under water
Display is used to show the scale rope image of underwater camera shooting, so that the diver for being located at the two sides of scale rope passes through under water
Display Synchronous scale rope;
In (two) step, the diver positioned at scale rope two sides observes scale when observing coral, through underwater display
Scale on rope, and record the scale on the scale rope that underwater display is shown at this time.
5. a kind of method of diving investigation islands and reefs area coral section according to claim 1 or 2 or 3 or 4, characterized in that
Every diver respectively wears dive computer table, and in (two) step, every diver is while observing coral, the diving
Member records the depth of water, water temperature and sediment types of its position by the dive computer table worn.
6. a kind of method of diving investigation islands and reefs area coral section according to claim 1 or 2 or 3 or 4, characterized in that
Every diver's head-mount has Underwater Camera, is shot by Underwater Camera.
7. a kind of method of diving investigation islands and reefs area coral section according to claim 1 or 2 or 3 or 4, characterized in that
Several clump weights are hung on the scale rope, so that scale rope is tightly attached to seabed.
8. a kind of method of diving investigation islands and reefs area coral section according to claim 1 or 2 or 3 or 4, characterized in that
The both ends of the scale rope are respectively equipped with a floating ball, and floating ball is connect by connecting line with the end of scale rope, and floating ball is swum in
On sea, for demarcating the position on the water surface.
9. a kind of method of diving investigation islands and reefs area coral section according to claim 1 or 2 or 3 or 4, characterized in that
In (one) step, the position of the position for demarcating starting point by GPS locator with ship personnel and terminal on research vessel.
10. a kind of method of diving investigation islands and reefs area coral section according to claim 1 or 2 or 3 or 4, characterized in that
In (one) step, on research vessel with the investigation date of ship personnel record's initial point position, control time, longitude and latitude, the depth of water,
Salinity and water temperature information.
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