CN111631177A - Quantitative investigation device and method for early resources of eriocheir sinensis - Google Patents
Quantitative investigation device and method for early resources of eriocheir sinensis Download PDFInfo
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- CN111631177A CN111631177A CN202010349028.1A CN202010349028A CN111631177A CN 111631177 A CN111631177 A CN 111631177A CN 202010349028 A CN202010349028 A CN 202010349028A CN 111631177 A CN111631177 A CN 111631177A
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- 241000371997 Eriocheir sinensis Species 0.000 title claims abstract description 44
- 238000011835 investigation Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 238000005086 pumping Methods 0.000 claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 5
- 238000011161 development Methods 0.000 claims description 11
- 241000238557 Decapoda Species 0.000 claims description 7
- 230000000366 juvenile effect Effects 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 5
- 238000011160 research Methods 0.000 abstract description 7
- 238000011002 quantification Methods 0.000 abstract description 3
- 238000011156 evaluation Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000018109 developmental process Effects 0.000 description 10
- 241000238578 Daphnia Species 0.000 description 3
- 241000252069 Megalops Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241000894007 species Species 0.000 description 2
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001617 migratory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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Classifications
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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
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
-
- 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
- A01K77/00—Landing-nets for fishing; Landing-spoons for fishing
-
- 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
- A01K80/00—Harvesting oysters, mussels, sponges or the like
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to a quantitative investigation device and method for early resources of eriocheir sinensis, wherein the device comprises a tubular column, a water pump, a collecting filter screen and a hand-held net, the tubular column is of a transparent hollow cylinder structure, the side wall of the tubular column is marked with height scales, a water pumping port of the water pump is connected with a water inlet pipe, the other end of the water inlet pipe extends into an inner cavity of the tubular column, and a water outlet of the water pump is connected with a net port of the collecting filter screen through a water outlet pipe. The method can fully sample the eriocheir sinensis early resources inhabiting the water layer and the water bottom or hidden in the water bottom substrate, ensures the accuracy of statistical data, realizes the accurate quantification of the eriocheir sinensis early resource survey, is beneficial to improving the accuracy of the overall level evaluation of the eriocheir sinensis early resource, has simple structure and easy operation, and is convenient for developing field survey research.
Description
Technical Field
The invention belongs to the technical field of aquatic resource investigation, and particularly relates to a quantitative investigation device and method for early resources of eriocheir sinensis.
Background
The eriocheir sinensis natural resources are not only important fishing objects in China, but also excellent germplasm resources for supporting green and healthy development of the breeding industry. However, the natural resources of eriocheir sinensis are greatly changed under the influence of multiple stresses such as climate change and human activities, and thus the eriocheir sinensis is receiving wide attention. The early development stage is a very important key link in the whole life history of organisms and is related to effective supplement and sustainable development of the whole population. Therefore, the research and research on the dynamic characteristics of the early-stage resources of the eriocheir sinensis have important guiding significance for mastering the natural resource change and the mechanism thereof of the species, developing resource maintenance, habitat ecological restoration and the like. Eriocheir sinensis belongs to migratory species, and the hatched early resources migrate upwards from estuary water area to river. The early resources of the eriocheir sinensis are divided into three development stages of daphnia larvae, megalopas and juvenile crabs in sequence: the daphnia larvae live in a floating way, inhabit the middle upper layer of a water body at the river mouth and migrate towards the near bank of the river mouth along with tidal waters; the daphnia larva grows into a large-eye larva after 5 molting, and simultaneously changes from planktonic life to benthic life, the water flows upwards from the estuary along with the tide water during the rising tide at night, and sinks to the bottom of the water body when the tide falls off in the daytime; the megalops larva grows into young crabs after 1 molting, and the young crabs live at the bottom of the water body and live in life. Due to differences of individual development processes or different hatching batches, different development stages can be overlapped together in the same period, for example, the daphnia-shaped larva and the megalopa coexist in the same water area in the same period, and the megalopa and the juvenile crab coexist in the same water area in the same period.
At present, the investigation on the early resources of the eriocheir sinensis is carried out by means of a plankton net, and no special investigation net tool and method are provided. In the investigation process, the plankton net is dragged in the water body, and the quantitative investigation purpose is realized by calculating the number of the eriocheir sinensis early resources, the net mouth area and the water body flow in a certain time. The method can realize quantitative investigation to a certain degree, but the investigation accuracy is insufficient, especially in the stage of the megalops and the juvenile crabs, only the early resources distributed in the water body can be investigated, but effective investigation statistics can not be carried out on individuals inhabiting or hiding in the complex substrate of the water bottom, and the accurate assessment of the overall level of the early resources is influenced. With the development of current aquatic resource assessment and maintenance research, obtaining accurate data and accurately assessing early resource dynamics are more and more important. However, due to the characteristics of individual development of the early resources of the eriocheir sinensis, no targeted quantitative investigation device, method research and application report is found.
Disclosure of Invention
The invention aims to solve the technical problem of providing the eriocheir sinensis early resource quantitative investigation device and method, which can realize accurate quantification of early resource investigation and improve the accuracy of investigation statistical data, and are suitable for field operation and simple and easy operation.
The invention provides a eriocheir sinensis early resource quantitative investigation device, which comprises a tubular column, a water pump, a collecting filter screen and a hand-held net, wherein the tubular column is of a transparent hollow cylinder structure, the side wall of the tubular column is marked with height scales, a water pumping port of the water pump is connected with a water inlet pipe, the other end of the water inlet pipe extends into an inner cavity of the tubular column, and a water outlet of the water pump is connected with a net port of the collecting filter screen through a water outlet pipe.
The near bottom of the outer side wall of the pipe column is provided with a horizontal limiting ring along the circumferential direction, and the height of the limiting ring from the lower end of the pipe column is matched with the depth of the water body substrate inserted in the sampling process of the pipe column.
The scale value of 0 of the height scale corresponds to the position of the limiting ring.
The tubular column is of a hollow cylindrical structure.
The technical scheme adopted by the invention for solving the technical problem is to provide a quantitative investigation and loading method for the early resources of the eriocheir sinensis, and the quantitative investigation and loading method for the early resources of the eriocheir sinensis uses the quantitative investigation device for the early resources of the eriocheir sinensis, and comprises the following steps:
(1) after an investigation area and a sampling site are determined, placing the pipe column in a water body, inserting the lower end of the pipe column into sediment of the water body for 15-20 cm, and observing the depth of the water body through the height scales;
(2) pumping water in the pipe column by a water pump, and recording the water pumping time and the water pumping flow;
(3) collecting the eriocheir sinensis early resource samples in the water body in the pipe column through a collecting filter screen, sorting, fixing and storing;
(4) after the water in the pipe column is pumped to be dry, removing internal sundries, collecting the eriocheir sinensis early resource samples which are breathed at the bottom or in sediment by using a hand-net, sorting, fixing and storing;
(5) all samples are taken back to a laboratory for identification and classification, the number of individuals of the daphnia-shaped larvae, the megalopes and the juvenile crabs in the three development stages of the eriocheir sinensis is counted respectively, the volume of the water body in the pipe column is calculated through the water pumping time and the water pumping flow, the area of the water body is calculated through the depth of the water body, and the distribution density of the early resources of the eriocheir sinensis is calculated.
Advantageous effects
According to the invention, the research area can be fixed through the pipe column, the early eriocheir sinensis resources inhabiting the water bottom or hiding in the water bottom substrate and different water layers can be fully sampled, the accuracy of statistical data is ensured, the accurate quantification of the early eriocheir sinensis resource investigation is realized, and the accuracy of the overall level evaluation of the early eriocheir sinensis resources is favorably improved. Moreover, the device has simple structure and easy operation, and is convenient for carrying out investigation and research in the field.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
As shown in figure 1, the quantitative investigation device for the early stage resources of the eriocheir sinensis comprises a pipe column 1, a water pump 2, a collecting filter screen 3 and a handsheet 4.
The tubular column 1 is a hollow cylinder made of transparent materials, the outer side wall of the tubular column is marked with height scales 5, the ratio of the height to the diameter of the tubular column is 6:5, and the surface area of the tubular column is not less than 2.5 square meters. The nearly bottom of 1 lateral wall of tubular column is equipped with the horizontally spacing ring along circumference, and the degree of depth phase-match that inserts the water bottom material when the height of spacing ring apart from 1 lower extreme of tubular column and tubular column 1 sample, the "0" scale interval of height scale 5 is corresponding with the position of spacing ring, through the setting of spacing ring, can restrict the degree of depth that tubular column 1 inserted the submarine muddy matter to guarantee to the accuracy of water degree of depth measurement.
The water pump 2 is a small-sized water pump, a direct-current power supply is used, the opening flow is not more than 100 liters/minute, the suction lift is not less than 2 meters, the lift is not more than 7 meters, and the water inlet and the water outlet of the water pump 2 are connected by a transparent plastic hose. The water pumping port of the water pump 2 is connected with the water inlet pipe 6, and the other end of the water inlet pipe 6 extends into the inner cavity of the pipe column 1 and is used for pumping water from the inside of the pipe column 1 to the outside.
The water outlet of the water pump 2 is connected with the net mouth of the collecting filter net 3 through a water outlet pipe 7. The collecting filter screen 3 is made of plankton net with the aperture of the screen no more than 0.5 mm, the diameter of the net mouth is no less than 20cm, and the net length is no more than 80 cm. The handsheet 4 is made of plankton net with mesh aperture not larger than 0.5 mm, net mouth diameter not larger than 20cm, net length not larger than 30 cm, and handle length not larger than 1 m.
The method for quantitatively investigating the early-stage resources of the eriocheir sinensis is used, and comprises the following steps:
(1) after an investigation area and a sampling site are determined, the pipe column 1 is placed in a water body, the lower end of the pipe column 1 is inserted into sediment of a water body for 15-20 cm, and the depth of the water body is observed through the height scale 5;
(2) pumping water in the pipe column 1 through a water pump 2, and recording the water pumping time and the water pumping flow;
(3) collecting the eriocheir sinensis early resource samples in the water body in the pipe column 1 through the collecting filter screen 3, sorting, fixing and storing;
(4) after the water in the pipe column 1 is pumped to be dry, removing internal sundries, collecting the eriocheir sinensis early resource samples which are breathed at the bottom or in sediment by using a handsheet 4, sorting, fixing and storing;
(5) all samples are taken back to a laboratory for identification and classification, the number of individuals of the daphnia-shaped larvae, the megalopas and the juvenile crabs in the three development stages of the eriocheir sinensis is counted respectively, the water volume in the pipe column 1 is calculated through the water pumping time and the water pumping flow, and then the distribution density of the early resources of the eriocheir sinensis is calculated.
Claims (5)
1. The utility model provides a chinese mitten crab early resource quantitative investigation device, includes tubular column (1), water pump (2), collects filter screen (3) and hand net (4), its characterized in that: the utility model discloses a filter screen, including tubular column (1), water pump (2), inlet tube (6), the other end of inlet tube (6) stretches into in the inner chamber of tubular column (1), the delivery port of water pump (2) passes through outlet pipe (7) and is connected with the net gape of collecting filter screen (3), tubular column (1) is transparent hollow cylinder structure and lateral wall superscript height scale (5), the mouth that draws water of water pump (2) is connected with inlet tube (6).
2. The eriocheir sinensis early resource quantitative investigation device according to claim 1, wherein: the near bottom of the outer side wall of the pipe column (1) is provided with a horizontal limiting ring along the circumferential direction, and the height of the limiting ring from the lower end of the pipe column (1) is matched with the depth of the water body substrate inserted in the sampling process of the pipe column (1).
3. The eriocheir sinensis early resource quantitative investigation device according to claim 2, wherein: the scale value of '0' of the height scale (5) corresponds to the position of the limiting ring.
4. The eriocheir sinensis early resource quantitative investigation device according to claim 1, wherein: the pipe column (1) is of a hollow cylindrical structure.
5. A quantitative investigation method for the early resources of Eriocheir sinensis, which is characterized by using the quantitative investigation device for the early resources of Eriocheir sinensis in any one of claims 1 to 4, and comprises the following steps:
(1) after an investigation area and a sampling site are determined, the pipe column (1) is placed in a water body, the lower end of the pipe column (1) is inserted into sediment of a water body for 15-20 cm, and the depth of the water body is observed through the height scale (5);
(2) pumping water in the pipe column (1) through a water pump (2), and recording the water pumping time and the water pumping flow;
(3) collecting eriocheir sinensis early resource samples in a water body in the tubular column (1) through the collecting filter screen (3), sorting, fixing and storing;
(4) after the water in the pipe column (1) is pumped, removing internal sundries, collecting the eriocheir sinensis early resource sample which is breathed at the bottom or in sediment by using a hand-shoveling net (4), sorting, fixing and storing;
(5) all samples are taken back to a laboratory for identification and classification, the number of individuals of the daphnia-shaped larvae, the megalopes and the juvenile crabs in the three development stages of the eriocheir sinensis is counted respectively, the water volume in the pipe column (1) is calculated through the water pumping time and the water pumping flow, the water area is calculated through the water depth, and then the distribution density of the early resources of the eriocheir sinensis is calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010349028.1A CN111631177B (en) | 2020-04-28 | 2020-04-28 | Use method of eriocheir sinensis early resource quantitative investigation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010349028.1A CN111631177B (en) | 2020-04-28 | 2020-04-28 | Use method of eriocheir sinensis early resource quantitative investigation device |
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| CN111631177A true CN111631177A (en) | 2020-09-08 |
| CN111631177B CN111631177B (en) | 2022-02-01 |
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| CN202760026U (en) * | 2012-07-31 | 2013-03-06 | 中国科学院水生生物研究所 | Purse seine sampling device for surveying of bait fish resources in shallow lakes |
| CN103918623A (en) * | 2014-04-23 | 2014-07-16 | 江苏省淡水水产研究所 | Complete equipment for investigation of corbicula fluminea resources |
| CN106845097A (en) * | 2017-01-12 | 2017-06-13 | 上海海洋大学 | The methods of sampling of the stock of fish under a kind of many habitat conditions |
| CN108308130A (en) * | 2018-04-25 | 2018-07-24 | 江苏省淡水水产研究所 | A kind of mandarin fish resource investigation finishing device |
| CN108507625A (en) * | 2018-06-21 | 2018-09-07 | 水利部中国科学院水工程生态研究所 | A kind of water body planktonic organism intellectual monitoring platform and method for integrating Internet of Things |
| CN209745580U (en) * | 2019-04-12 | 2019-12-06 | 中国水产科学研究院黑龙江水产研究所 | portable style frame for field investigation of aquatic plants in river and lake water areas |
-
2020
- 2020-04-28 CN CN202010349028.1A patent/CN111631177B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005221382A (en) * | 2004-02-05 | 2005-08-18 | Tsurumi Seiki:Kk | Benthos collection system |
| CN102636821A (en) * | 2012-04-20 | 2012-08-15 | 上海海洋大学 | Investigation method for quantitative research of conservation range of rocky reef habitat |
| CN202760026U (en) * | 2012-07-31 | 2013-03-06 | 中国科学院水生生物研究所 | Purse seine sampling device for surveying of bait fish resources in shallow lakes |
| CN103918623A (en) * | 2014-04-23 | 2014-07-16 | 江苏省淡水水产研究所 | Complete equipment for investigation of corbicula fluminea resources |
| CN106845097A (en) * | 2017-01-12 | 2017-06-13 | 上海海洋大学 | The methods of sampling of the stock of fish under a kind of many habitat conditions |
| CN108308130A (en) * | 2018-04-25 | 2018-07-24 | 江苏省淡水水产研究所 | A kind of mandarin fish resource investigation finishing device |
| CN108507625A (en) * | 2018-06-21 | 2018-09-07 | 水利部中国科学院水工程生态研究所 | A kind of water body planktonic organism intellectual monitoring platform and method for integrating Internet of Things |
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| CN111631177B (en) | 2022-02-01 |
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