CN104488790A - Device for observing molt and growth of river crabs and application thereof - Google Patents
Device for observing molt and growth of river crabs and application thereof Download PDFInfo
- Publication number
- CN104488790A CN104488790A CN201410817639.9A CN201410817639A CN104488790A CN 104488790 A CN104488790 A CN 104488790A CN 201410817639 A CN201410817639 A CN 201410817639A CN 104488790 A CN104488790 A CN 104488790A
- Authority
- CN
- China
- Prior art keywords
- crab
- river crab
- river
- transparent pipe
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/06—Arrangements for heating or lighting in, or attached to, receptacles for live fish
- A01K63/065—Heating or cooling devices
-
- 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
Abstract
The invention discloses a device for observing molt and growth of river crabs. The device comprises a transparent cylinder body, an oxygen increasing machine, a heating rod fixed on the inner wall of the cylinder body and crab pots arranged inside the transparent cylinder body, wherein an air outlet head of the oxygen increasing machine is arranged inside the transparent cylinder body; each crab pot comprises a left transparent pipe, a right transparent pipe, a net cover and three or more annular net cover supporting brackets; the annular net cover supporting brackets are arranged at intervals inside the net cover; two ends of the net cover are connected with the left end of the left transparent pipe and the right end of the right transparent pipe respectively; the right end of the left transparent pipe is connected with the left end of the right transparent pipe in a dismountable manner. The device realizes tracing observation of river crabs. The invention further provides a method for measuring growth change before or after multiple times of molt of river crabs and a method for calculating the molt periodic time by adopting the device. The method realizes measurement of growth changes of weight, shell length, shell width and shell height before or after multiple times of molt of river crabs, and accurate statistics of the molt periodic time, and provides scientific basis for healthy river crab breeding.
Description
Technical field
The present invention relates to and a kind ofly observe river crab and to cast off a skin the device of growth and the application of this device.
Background technology
Casting off a skin and run through river crab whole history of life, needing through about 20 times cast off a skin to becoming crab from zoea.The growth of river crab realizes its staged to increase by casting off a skin, and each molting process all needs to slough off old epidermis, synthesizes new epidermis, and simultaneously Individual Size and body weight realize a great-leap-forward increase within a short period of time.Although river crab casts off a skin, the generating process time is shorter, but determines the key of river crab specification size and survival rate.In culture of Chinese mitten crab production process, owing to lacking suitable label, before and after cannot casting off a skin for river crab individuality, growth change and moulting cycle time measure.
Summary of the invention
The invention provides a kind of observe river crab cast off a skin growth device, be convenient to the tracing observation to river crab.
To achieve these goals, the technical solution of the utility model is such: a kind of observe river crab cast off a skin growth device, comprise transparent cylinder body, aerator, the crab pot being fixed on the heating rod on transparent inboard wall of cylinder block and being arranged in transparent cylinder body, the head of giving vent to anger of described aerator is placed in transparent cylinder body, described crab pot comprises left transparent pipe, right transparent pipe, net and ring-type net bracing frame, more than 3 ring-type net bracing frames are arranged at intervals with in net, net two ends are connected with right transparent pipe right-hand member with the left end of left transparent pipe respectively, the right-hand member of left transparent pipe is connected with the left end of right transparent pipe is dismountable.
Preferably, the right-hand member of left transparent pipe is connected by clip with the left end of right transparent pipe.
When water level is higher than crab pot height, prevent crab pot from sinking in transparent cylinder body, net middle part is also provided with foam ball float.
Of the present invention also provide a kind of apply said apparatus measure river crab repeatedly cast off a skin before and after increase the method for change, can realize carrying out tracing observation to river crab, measure repeatedly cast off a skin front and back weight, shell is long, shell is wide and shell is high growth of river crab and change.
To achieve these goals, the technical scheme adopted is such, a kind of measure river crab repeatedly cast off a skin before and after increase change method, comprise the following steps:
1) select appendage to perfect, the strong river crab of energy is individual, measure and record every river crab weight, shell is long, shell is wide and shell is high;
2) every river crab and living body bait are put into separately a crab pot, every crab pot is marked, then the crab pot of mark is placed in transparent cylinder body, controls water temperature between 22 DEG C ~ 28 DEG C by heating rod, control dissolved oxygen in water at 2mg/L ~ 5mg/L by aerator;
3) every 4-12h observes river crab once, and after river crab casts off a skin, two to three days takes out river crab from crab pot, and to its weight, shell is long, shell is wide and shell is high measures and after recording, place back in crab pot.
4) repeat step 3) until in crab pot river crab individuality ripe or dead.
The present invention also provides a kind of and applies the method that said apparatus measures the river crab moulting cycle time, can realize carrying out tracing observation to river crab, count the river crab moulting cycle time accurately.
In order to achieve this end, the technical scheme adopted is such, and a kind of method measuring the river crab moulting cycle time, comprises the following steps:
1) select appendage to perfect, the river crab that energy is strong is individual;
2) every river crab and living body bait are put into separately a crab pot, every crab pot is marked, then the crab pot of mark is placed in transparent cylinder body, controls water temperature between 22 DEG C ~ 28 DEG C by heating rod, control dissolved oxygen in water at 2mg/L ~ 5mg/L by aerator;
3) every 4-12h observes river crab once, and record river crab casts off a skin situation, according to data statistic analysis river crab each moulting cycle time of record.
Beneficial effect:
1, apparatus of the present invention are by transparent cylinder body, aerator, heating rod and crab pot composition, aerator, heating rod make the temperature of glass cylinder body and dissolved oxygen reach river crab cast off a skin growth needed for, transparent cylinder body is equivalent to an independently ecosystem, crab pot is a relatively independent single ecosphere, ring-type net bracing frame is set in the net of described crab pot, take Water space large, sturdy and durable, substantially large dead angle is not had in crab pot body, while the activity of restriction river crab, growth of casting off a skin for river crab provides a large activity space, it is made to cast off a skin growth not by the impact of crab pot, in addition because transparent cylinder body and crab pot are all visual, thus the growth conditions of casting off a skin of river crab in crab pot can be observed, achieve the tracing observation of cage one crab,
2, the present invention marks each crab pot, then every river crab is put into separately a crab pot to cultivate, thus the tracing observation that can realize easily river crab, measure river crab repeatedly cast off a skin front and back weight, shell is long, shell is wide and shell high growth change and moulting cycle time, to study the changing factor affecting river crab molt increment and moulting cycle time further, for river crab healthy aquaculture provides scientific basis.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of crab pot.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, and these embodiments only for explaining the present invention, do not form limiting the scope of the present invention.
embodiment 1
As depicted in figs. 1 and 2, a kind of observe river crab cast off a skin growth device, comprise transparent cylinder body 1, aerator 2, the crab pot 4 being fixed on the heating rod 3 on transparent inboard wall of cylinder block and being arranged in transparent cylinder body, giving vent to anger of described aerator 25 is placed in transparent cylinder body 1, described crab pot 4 comprises left transparent pipe 6, right transparent pipe 7, net 8 and ring-type net bracing frame 9, more than 3 ring-type net bracing frames 9 are arranged at intervals with in net 8, net 8 two ends are connected with right transparent pipe 7 right-hand member with the left end of left transparent pipe 6 respectively, the right-hand member of left transparent pipe 6 is connected with the left end of right transparent pipe 7 is dismountable, preferably the right-hand member of left transparent pipe 6 is connected by clip 10 with the left end of right transparent pipe 7.
When water level is higher than crab pot height, prevent crab pot from sinking in transparent cylinder body 1, net 8 middle part is also provided with foam ball float 11.
During use, add appropriate water, river crab is put into crab pot 4 by transparent cylinder body 1, crab pot 4 is placed in transparent cylinder body 1, and by heating rod 3 and aerator 2, control temperature and dissolved oxygen reach river crab and cast off a skin needed for growth respectively.
embodiment 2
Measure river crab repeatedly cast off a skin before and after increase change a method, comprise the following steps:
1) select appendage to perfect, the strong river crab of energy is individual, measure and record every river crab weight, shell is long, shell is wide and shell is high;
2) every river crab and living body bait are put into separately a crab pot 4, every crab pot is marked, then the crab pot of mark is placed in transparent cylinder body 1, controls water temperature between 22 DEG C ~ 28 DEG C by heating rod 3, control dissolved oxygen in water at 2mg/L ~ 5mg/L by aerator 2;
3) every 4-12h observes river crab once, and after river crab casts off a skin, two to three days takes out river crab from crab pot 4, and to its weight, shell is long, shell is wide and shell is high measures and after recording, place back in crab pot.
4) repeat step 3) until in crab pot 4 river crab individuality ripe or dead.
embodiment 3
Measure the method for river crab moulting cycle time, comprise the following steps:
1) select appendage to perfect, the river crab that energy is strong is individual;
2) every river crab and living body bait are put into separately a crab pot 4, every crab pot is marked, then the crab pot 4 of mark is placed in transparent cylinder body 1, controls water temperature between 22 DEG C ~ 28 DEG C by heating rod 3, control dissolved oxygen in water at 2mg/L ~ 5mg/L by aerator 2;
3) every 4-12h observes river crab once, and record river crab casts off a skin situation, according to data statistic analysis river crab each moulting cycle time of record.
Shell in the present invention is long refers to body length, namely in the leading edge of the carapace back side recess of volume between cog to the length of carapace trailing edge ends; The wide length referring to carapace the widest part of shell; Shell is high refers to the vertical range of the carapace back side to venter.Shell is long, shell is wide and the high slide measure of shell (0.02mm) is measured, and weight electronic balance (0.01g) weighs.Moulting cycle time of river crab refers to river crab from the time between once casting off a skin and casting off a skin next time.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and implement according to this; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (5)
1. one kind observe river crab cast off a skin growth device, it is characterized in that, comprise transparent cylinder body (1), aerator (2), the crab pot (4) being fixed on the heating rod (3) on transparent inboard wall of cylinder block and being arranged in transparent cylinder body, the head of giving vent to anger (5) of described aerator (2) is placed in transparent cylinder body (1), described crab pot (4) comprises left transparent pipe (6), right transparent pipe (7), net (8) and ring-type net bracing frame (9), more than 3 ring-type net bracing frames (9) are arranged at intervals with in net (8), net (8) two ends are connected with right transparent pipe (7) right-hand member with the left end of left transparent pipe (6) respectively, the right-hand member of left transparent pipe (6) is connected with the left end of right transparent pipe (7) is dismountable.
2. according to claim 1ly a kind ofly observe river crab and to cast off a skin the device of growth, it is characterized in that, the right-hand member of left transparent pipe (6) and the left end of right transparent pipe (7) pass through clip (10) and are connected.
3. according to claim 1 a kind of observe river crab cast off a skin growth device, it is characterized in that, net (8) middle part is also provided with foam ball float (11).
4. the measurement device river crab of applying described in the arbitrary claim of claim 1-3 increases the method for change before and after repeatedly casting off a skin, and it is characterized in that comprising the following steps:
1) select appendage to perfect, the strong river crab of energy is individual, measure and record every river crab weight, shell is long, shell is wide and shell is high;
2) every river crab and living body bait are put into separately a crab pot (4), every crab pot is marked, then the crab pot of mark is placed in transparent cylinder body (1), control water temperature between 22 DEG C ~ 28 DEG C by heating rod (3), control dissolved oxygen in water at 2mg/L ~ 5mg/L by aerator (2);
3) every 4-12h observes river crab once, and after river crab casts off a skin, two to three days takes out river crab from crab pot (4), and to its weight, shell is long, shell is wide and shell is high measures and after recording, place back in crab pot;
4) step 3) is repeated until crab pot (4) interior river crab individuality is ripe or dead.
5. apply the method for the measurement device river crab moulting cycle time described in the arbitrary claim of claim 1-3, it is characterized in that comprising the following steps:
1) select appendage to perfect, the river crab that energy is strong is individual;
2) every river crab and living body bait are put into separately a crab pot (4), every crab pot is marked, then the crab pot of mark is placed in transparent cylinder body (1), control water temperature between 22 DEG C ~ 28 DEG C by heating rod (3), control dissolved oxygen in water at 2mg/L ~ 5mg/L by aerator (2);
3) every 4-12h observes river crab once, and record river crab casts off a skin situation, according to the data statistic analysis river crab moulting cycle time of record.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817639.9A CN104488790B (en) | 2014-12-24 | 2014-12-24 | Device for observing molt and growth of river crabs and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410817639.9A CN104488790B (en) | 2014-12-24 | 2014-12-24 | Device for observing molt and growth of river crabs and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104488790A true CN104488790A (en) | 2015-04-08 |
| CN104488790B CN104488790B (en) | 2017-01-11 |
Family
ID=52930326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410817639.9A Expired - Fee Related CN104488790B (en) | 2014-12-24 | 2014-12-24 | Device for observing molt and growth of river crabs and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104488790B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105145423A (en) * | 2015-07-31 | 2015-12-16 | 江苏省淡水水产研究所 | Method for quickly determining various ecdysis periods of river crabs |
| CN110934099A (en) * | 2019-11-08 | 2020-03-31 | 上海海洋大学 | Method for inhibiting river crab fighting by DA receptor |
| CN113701590A (en) * | 2020-05-22 | 2021-11-26 | 江苏省淡水水产研究所 | Method for judging high-quality mature eriocheir sinensis |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090145367A1 (en) * | 2007-12-06 | 2009-06-11 | Chien-Hsun Ho | Caring shell for hermit crab |
| CN203167814U (en) * | 2013-03-26 | 2013-09-04 | 中国水产科学研究院东海水产研究所 | Device for observing zoeas of scylla paramamosain |
| CN103461233A (en) * | 2013-08-07 | 2013-12-25 | 上海海洋大学 | Stress resistance measuring device and use method thereof |
| CN103960187A (en) * | 2014-05-13 | 2014-08-06 | 王连成 | Method for breeding large river crabs and soft crabs in indoor circulating water in three-dimensional mode |
| CN204466602U (en) * | 2014-12-24 | 2015-07-15 | 江苏省淡水水产研究所 | A kind of observe river crab cast off a skin growth device |
-
2014
- 2014-12-24 CN CN201410817639.9A patent/CN104488790B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090145367A1 (en) * | 2007-12-06 | 2009-06-11 | Chien-Hsun Ho | Caring shell for hermit crab |
| CN203167814U (en) * | 2013-03-26 | 2013-09-04 | 中国水产科学研究院东海水产研究所 | Device for observing zoeas of scylla paramamosain |
| CN103461233A (en) * | 2013-08-07 | 2013-12-25 | 上海海洋大学 | Stress resistance measuring device and use method thereof |
| CN103960187A (en) * | 2014-05-13 | 2014-08-06 | 王连成 | Method for breeding large river crabs and soft crabs in indoor circulating water in three-dimensional mode |
| CN204466602U (en) * | 2014-12-24 | 2015-07-15 | 江苏省淡水水产研究所 | A kind of observe river crab cast off a skin growth device |
Non-Patent Citations (1)
| Title |
|---|
| 宣富君等: "室内养殖条件下三疣梭子蟹的生殖蜕壳和交配行为", 《动物学杂志》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105145423A (en) * | 2015-07-31 | 2015-12-16 | 江苏省淡水水产研究所 | Method for quickly determining various ecdysis periods of river crabs |
| CN105145423B (en) * | 2015-07-31 | 2019-03-01 | 江苏省淡水水产研究所 | A kind of method in quick discrimination river crab difference husking period |
| CN110934099A (en) * | 2019-11-08 | 2020-03-31 | 上海海洋大学 | Method for inhibiting river crab fighting by DA receptor |
| CN113701590A (en) * | 2020-05-22 | 2021-11-26 | 江苏省淡水水产研究所 | Method for judging high-quality mature eriocheir sinensis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104488790B (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104488790B (en) | Device for observing molt and growth of river crabs and application thereof | |
| CN207707062U (en) | A kind of Yellow River fish incubating oosperm device | |
| CN203912940U (en) | A kind of outdoor earth pond is cultivated the multilayer floating net cage that cultchless oyster seedling is used | |
| CN103734058A (en) | Method for increasing hatchability of Argopecten irradians | |
| CN107258648B (en) | Operation device and method for releasing fry by in-vitro listing mark | |
| CN204466602U (en) | A kind of observe river crab cast off a skin growth device | |
| CN104488718B (en) | A kind of rapid propagation method of chrysanthemum horse bell lettuce tongue | |
| CN206354132U (en) | Detachable floating training plant cultivating device | |
| CN206728903U (en) | A kind of lobster cultivation apparatus | |
| CN103734094A (en) | Method of using mesh bags for leech aquaculture in lakes | |
| CN103033642A (en) | Measuring method of crawling speed of sea urchin | |
| CN208795644U (en) | A kind of cyanobacteria enclosure device | |
| CN206165395U (en) | Laver turns over board cultivation frame structure | |
| CN210579976U (en) | Disc-shaped seed sowing gun | |
| CN208739799U (en) | A kind of forestry sapling breeding apparatus | |
| CN204362753U (en) | A kind of cutter tapertail anchovy ovum counting pretreatment unit | |
| CN207125151U (en) | A kind of fresh-water fishes fish hatcher | |
| CN203015646U (en) | Cuttlefish seedling raising room | |
| CN205287633U (en) | Sports training is hurdled with formula that resets | |
| CN205848268U (en) | A kind of culture bottle fixing device | |
| CN110276546A (en) | A method of for quickly measuring Bao hypoxia-resistant capacity | |
| CN104498580A (en) | Method for measuring mechanical damage resistance and recovery ability of spirulina seeds and application | |
| CN204514482U (en) | A kind of aquatic products hatching, breeding water body thermometer | |
| CN204907535U (en) | Novel crawl with interlayer | |
| CN220734035U (en) | Floating leech attachment base |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20171224 |