CN103355250A - Underwater video observation positioning device and spawning scale evaluation method for Chinese sturgeon spawning ground - Google Patents
Underwater video observation positioning device and spawning scale evaluation method for Chinese sturgeon spawning ground Download PDFInfo
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- CN103355250A CN103355250A CN2013102925587A CN201310292558A CN103355250A CN 103355250 A CN103355250 A CN 103355250A CN 2013102925587 A CN2013102925587 A CN 2013102925587A CN 201310292558 A CN201310292558 A CN 201310292558A CN 103355250 A CN103355250 A CN 103355250A
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Abstract
The invention provides an underwater video observation positioning device and a spawning scale evaluation method for a Chinese sturgeon spawning ground. The device adopts the structure that a winch is mounted on a deck of a research ship, a cable on the winch is equipped with a stainless steel framework and a fish lead, an underwater camera and an underwater light source are mounted in the framework, and a GPS positioning system is mounted at the top end of a bracket. The spawning scale evaluation method comprises the following steps: firstly, preparation: well assembling the underwater video device according to figures; secondly: video acquisition; thirdly: accurate positioning of the spawning range and scale evaluation. According to the invention, actual video observation of the Chinese sturgeon spawning ground is designed and realized for the first time, the bed material features and the zygote adhesion distribution of the Chinese sturgeon spawning ground can be visually known; based on video observation and GPS positioning, the Chinese sturgeon spawning range can be accurately positioned, and the Chinese sturgeon spawning scale can be effectively evaluated; therefore, the spawning scale evaluation method is more accurate and scientific than conventional methods.
Description
Technical field
The present invention relates to the fisheries resources conservation technical field, specially refer to a kind of Chinese sturgeon spawning underwater video observation positioner and the scale appraisal procedure of laying eggs.
Background technology
Mandarin sturgeon is the first-grade state protection aqua-marine life, because ecological iris action, the transition of Ge Zhou Ba dam are fished for and the factor affecting such as pollution, mandarin sturgeon in the Changjiang river, rely perch procreation perch a large amount of forfeitures in habitat or quality descends in various degree to some extent.Mandarin sturgeon has formed a unique natural spawning field at present under the Ge Zhou Ba fortunately, and this spawning ground has great importance to keeping of mandarin sturgeon Natural Population.Carrying out mandarin sturgeon natural propagation effect monitoring is to formulate and implement the basis that mandarin sturgeon is effectively protected countermeasure.How the scale of Efficient Evaluation mandarin sturgeon natural propagation, the site of accurately locating the mandarin sturgeon natural spawning are difficult problems always.Mandarin sturgeon as the river at the bottom of the bottom fish that lay eggs, the ovum that produces sticks at the bottom of the river in the cobble slit hatching and grows, and can directly just can collect the ovum seedling by gathering net unlike the fish of the products drift gamogenetic eggs such as four large Chinese carps, thereby estimate the scale of natural propagation.Existing researcher adopts the mode of adopting the ovum net at the bottom of the river to collect mandarin sturgeon fertilized egg and the embryo locates the mandarin sturgeon Oviposition site, yet can only collect fertilized egg or the embryo who sweeps away from the upstream according to adopting the ovum net at the bottom of the river, can't accurately locate the upper area of Chinese sturgeon spawning, also have by mandarin sturgeon being carried out ultrasonic remote measurement location and determine the breeding site, but the accuracy error of ultrasonic remote measurement location is about 1km, can not obtain the lay eggs exact position of scale of mandarin sturgeon.Therefore, how Chinese sturgeon spawning is accurately located, it is to carry out lay eggs the also objective requirement of a difficult problem of fish research of the bottom such as mandarin sturgeon that the scale of laying eggs is carried out Efficient Evaluation.And lay eggs observation and the research of fertilization rate coherent condition, hatching and embryo development procedure of fish is the difficult point of research always for bottoms such as mandarin sturgeons, and is if can realize direct observation to the situation of laying eggs at the bottom of the river, significant for going deep into of studying.
Summary of the invention
The object of the present invention is to provide a kind of Chinese sturgeon spawning underwater video observation positioner and the scale appraisal procedure of laying eggs.Its purpose one is: directly observe mandarin sturgeon natural spawning field fertilized egg coherent condition by video, the accurate location in mandarin sturgeon natural propagation site provides basic basis, thereby sets up a kind of effective ways of natural spawning scale assessment; Purpose two is: according to video observation data acquisition mandarin sturgeon natural spawning field bed material habitat characteristics data, in conjunction with the assessment of mandarin sturgeon natural propagation scale, thereby provide basic data for answering the research of mandarin sturgeon natural propagation ecological demand.
For achieving the above object, technical scheme of the present invention is:
A kind of Chinese sturgeon spawning underwater video observation positioner, comprise winch, the GPS navigation system, support, steel cable, stainless steel frame, Underwater Camera, underwater light source and fish lead, on the deck of research vessel winch is housed, steel cable one end on the winch is equipped with stainless steel frame, fish lead is equipped with in the bottom of stainless steel frame, one side of stainless steel frame is equipped with rudder, Underwater Camera and underwater light source are housed in the stainless steel frame, steel cable is done stainless steel frame by support and is moved up and down, cantilever tip is equipped with the GPS navigation system, and the GPS navigation system is connected with GIS navigation system on the research vessel.
A kind of Chinese sturgeon spawning scale appraisal procedure of laying eggs, described method follows these steps to carry out:
1, preparation: Underwater Camera and underwater light source are installed in the stainless steel frame, and be connected with steel cable on the winch, fish lead is loaded onto in the bottom of stainless steel frame, by support the underwater video device that assembles is put into water with winch outside ship side, the GPS navigation system is connected with GIS navigation system on the ship;
2, video acquisition: in the GIS navigation system, adopt the section survey method, river, mandarin sturgeon natural spawning field section is measured wiring, 100 sections are set, each section spacing is 30 meters, 1 monitoring point is set on each section, very steady research vessel in the scope of monitoring point, start winch the underwater video device that assembles is down to the bottom, riverbed, open underwater light source, with video camera production under water 2-4 minute, with the underwater video device emersion water surface, this moment, then underwater video data and GPS synchronous recording carried out data acquisition to the monitoring point one by one;
3, the accurate location of scope and the scale assessment of laying eggs: gather finish after, according to mandarin sturgeon fertilized egg and embryo number in the per unit video, set up fertilized egg area corresponding to GPS anchor point and abundance tables of data, data are inputted in geography information (ARCGIS) system, adopt equidistant weight interpolation method (IDW) to obtain Chinese sturgeon spawning area and abundance distribution figure, Chinese sturgeon spawning area, zone and egg laying amount are directly calculated by system based on geography information (ARCGIS).
Good effect of the present invention is:
1, the present invention designs the actual video observation that has realized mandarin sturgeon natural spawning field first, can recognize intuitively that Chinese sturgeon spawning bed material feature, fertilized egg adhere to distribution;
2, based on video observation and GPS location, can realize the mandarin sturgeon scope of laying eggs is accurately located, the mandarin sturgeon scale of laying eggs is carried out Efficient Evaluation, more accurate than method in the past, science more;
3, the inventive method easily operates, and correlation technique can be used for carrying out other underwater video investigation and measures.
Description of drawings
Fig. 1, Chinese sturgeon spawning underwater video observation positioning device structure schematic diagram;
Fig. 2, Chinese sturgeon spawning bed material distribution;
Fig. 3, typical bed material degree of filling video image (white dashed line is shown the sand fill areas);
Fig. 4, underwater video obtain mandarin sturgeon naturally fertilized egg coherent condition photo.
Embodiment
Further specify the specific embodiment of the present invention below in conjunction with accompanying drawing 1.
1, preparation: referring to Fig. 1, Underwater Camera 8 and underwater light source 9 are contained in the stainless steel frame 6, stainless steel frame 6 is fixed on position, the terminal 1 meter left and right sides of steel cable 5 on the winch 2, steel cable 5 passes stainless steel frame 6 and connects endways the fish lead 10 of a 50kg, winch 2 is fixed on the deck of research vessel 1, winch 2 stretches out the ship side outside by support 4 with the underwater video device that assembles, GPS navigation system 3 is installed in the top of support 4, and GPS navigation system 3 is connected with navigation system on the research vessel 1;
2, video acquisition: in the GIS navigation system, adopt the end surface measurement method, Chinese sturgeon spawning river section is measured wiring, 100 sections are set altogether, each section is spaced apart 30 meters, 1 monitoring point is set on each section, open research vessel 1 to the observation station position and hold boats and ships, start winch 2 the underwater video device is down to the bottom, riverbed, and take direction and angles with rudder 7 control that is contained in stainless steel frame 6 one sides, produce 2-4 minute (referring to Fig. 4), then with winch 2 the underwater video device is risen to more than the water surface, one by one each monitoring point is produced, simultaneously with GPS navigation system 3 and underwater video data synchronous recording;
3, the accurate location of scope and the scale assessment of laying eggs: gather finish after, according to mandarin sturgeon fertilized egg and embryo number in the per unit video, set up fertilized egg area corresponding to GPS anchor point and abundance tables of data, data are inputted in the system of geography information (ARCGIS), adopt equidistant weight interpolation method (IDW) to carry out interpolation, thereby can assess mandarin sturgeon natural propagation scale.
Experimental data
With 2011 and underwater video observation survey result in 2012, can recognize that mandarin sturgeon natural spawning in 2011 occurs 1 time, the zone of laying eggs is 1.8k ㎡, egg laying amount is 500,000; The mandarin sturgeon natural spawning occured 2 times in 2012, and the zone of laying eggs is 2.0k ㎡, and egg laying amount reaches respectively 900,000.Simultaneously, according to the video analysis result, can understand mandarin sturgeon natural spawning field bed material distribution (referring to Fig. 2, Fig. 3), thus for the natural propagation ecological demand of carrying out mandarin sturgeon provide the basis.
The above only is non-limiting embodiment of the present invention; for the person of ordinary skill of the art; not breaking away from the invention design and not making under the prerequisite of creative work, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (2)
1. a Chinese sturgeon spawning underwater video is observed positioner, comprise winch (2), GPS navigation system (3), support (4), steel cable (5), stainless steel frame (6), Underwater Camera (8), underwater light source (9) and fish lead (10), it is characterized in that: winch (2) is housed on the deck of research vessel (1), steel cable (5) one ends on the winch (2) are equipped with stainless steel frame (6), fish lead (10) is equipped with in the bottom of stainless steel frame (6), one side of stainless steel frame (6) is equipped with rudder (7), Underwater Camera (8) and underwater light source (9) are housed in the stainless steel frame (6), steel cable (5) is done stainless steel frame (6) by support (4) and is moved up and down, GPS navigation system (3) is equipped with on support (4) top, and GPS navigation system (3) is connected with GIS navigation system on the research vessel (1).
2. Chinese sturgeon spawning scale appraisal procedure of laying eggs, it is characterized in that: described method follows these steps to carry out:
(1) preparation: Underwater Camera (8) and underwater light source (9) are installed in the stainless steel frame (6), and be connected with steel cable (5) on the winch (2), fish lead (10) is loaded onto in the bottom of stainless steel frame (6), by support (4) the underwater video device that assembles is put into water with winch (2) outside ship side, GPS navigation system (3) is connected with GIS navigation system on the ship;
(2) video acquisition: in the GIS navigation system, adopt the section survey method, river, mandarin sturgeon natural spawning field section is measured wiring, 100 sections are set, each section spacing is 30 meters, 1 monitoring point is set on each section, research vessel (1) comes to a complete stop in the scope of monitoring point, start winch (2) the underwater video device that assembles is down to the bottom, riverbed, open underwater light source (9), with video camera (8) production under water 2-4 minute, with the underwater video device emersion water surface, this moment, then underwater video data and GPS synchronous recording carried out data acquisition to the monitoring point one by one;
(3) the accurate location of scope and the scale assessment of laying eggs: gather finish after, according to mandarin sturgeon fertilized egg and embryo number in the per unit video, set up fertilized egg area corresponding to GPS anchor point and abundance tables of data, data are inputted in the geographic information system, adopt equidistant weight interpolation method to obtain Chinese sturgeon spawning area and abundance distribution figure, directly calculate Chinese sturgeon spawning area, zone and egg laying amount based on geographic information system.
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| CN104831675A (en) * | 2015-04-17 | 2015-08-12 | 杜浩 | Bottom spawning fish bed material demand model construction method |
| CN106651468A (en) * | 2017-01-04 | 2017-05-10 | 中国水产科学研究院珠江水产研究所 | Scale estimation method for spawning ground of river fishes capable of laying adhesive eggs |
| CN108932377A (en) * | 2018-05-31 | 2018-12-04 | 中国水产科学研究院珠江水产研究所 | A kind of fish spawning ground accurate positioning method and system |
| CN111008794A (en) * | 2019-12-31 | 2020-04-14 | 中国水产科学研究院黑龙江水产研究所 | Multi-dimensional one-stop investigation method for spawning site of spawning fishes on large water area grass in rivers, lakes and reservoirs |
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| CN106651468A (en) * | 2017-01-04 | 2017-05-10 | 中国水产科学研究院珠江水产研究所 | Scale estimation method for spawning ground of river fishes capable of laying adhesive eggs |
| CN106651468B (en) * | 2017-01-04 | 2020-06-09 | 中国水产科学研究院珠江水产研究所 | Method for estimating size of spawning site of fishes laying muco-sinking eggs in rivers |
| CN108932377A (en) * | 2018-05-31 | 2018-12-04 | 中国水产科学研究院珠江水产研究所 | A kind of fish spawning ground accurate positioning method and system |
| CN111008794A (en) * | 2019-12-31 | 2020-04-14 | 中国水产科学研究院黑龙江水产研究所 | Multi-dimensional one-stop investigation method for spawning site of spawning fishes on large water area grass in rivers, lakes and reservoirs |
| CN111008794B (en) * | 2019-12-31 | 2023-04-07 | 中国水产科学研究院黑龙江水产研究所 | Multi-dimensional one-stop investigation method for spawning site of spawning fishes on large water area grass in rivers, lakes and reservoirs |
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Application publication date: 20131023 |