Zooplankton culture device and zooplankton culture method

Abstract

The present disclosure provides a zooplankton cultivation device, comprising: a support and at least one floating body fixed to the support; a cultivation chamber fixed to the support, the cultivation chamber is open and comprises a pump chamber, an acclimation chamber, and a first breeding chamber and a second breeding chamber located between the pump chamber and the acclimation chamber and connected at the bottom, wherein the first breeding chamber is closer to the pump chamber than the second breeding chamber, the second breeding chamber and the acclimation chamber are connected at the top, the bottom of the pump chamber is provided with a water inlet mesh plate, and the acclimation chamber has a water outlet; a first suction pump arranged on the water inlet mesh plate; a water inlet pipeline connected to the first suction pump and with the water outlet located above the first breeding chamber; and an induced light source located in the second breeding chamber.

Description

Technical Field

[0001] The present invention relates to the technical field of zooplankton cultivation, and in particular to a zooplankton cultivation device and a zooplankton cultivation method. Background Art

[0002] Zooplankton is a general term for heterotrophic invertebrates that cannot move long distances but can move with the water flow. It is one of the important links in the food chain of water bodies and plays a connecting role in the material cycle of water bodies. Zooplankton is at the upper level of phytoplankton and microorganisms in the food chain. It feeds on bacteria, debris or phytoplankton, can eat algae, and inhibit the excessive reproduction of algae and bacteria. It plays an important role in the restoration and stable balance of natural water ecosystems. In related technologies, cultivated zooplankton is usually added directly to natural water bodies. However, zooplankton will be eaten by fish and the like, and will die in large numbers or enter a dormant state due to the influence of environmental temperature, dissolved oxygen, toxic substances, etc., and has little effect on the restoration of natural water ecosystems. Therefore, the use of zooplankton is severely restricted when artificially constructing an ecology. Summary of the invention

[0003] The disclosed embodiments provide a zooplankton cultivation device and a zooplankton cultivation method to improve the survival rate of zooplankton, thereby improving the restoration effect on the natural water ecosystem.

[0004] The zooplankton cultivation device provided in the embodiment of the present disclosure includes:

[0005] A support and at least one floating body fixed to the support;

[0006] A culture cabin, fixed to the support, the culture cabin is open, including a pump room, an acclimation room, and a first breeding room and a second breeding room located between the pump room and the acclimation room and communicating with each other at the bottom, wherein the first breeding room is closer to the pump room than the second breeding room, the second breeding room and the acclimation room are communicated at the top, the pump room has a water inlet mesh plate at the bottom, and the acclimation room has a water outlet;

[0007] A first suction pump provided on the water inlet screen;

[0008] a water inlet pipeline connected to the first suction pump and having a water outlet located above the first breeding chamber; and

[0009] An induction light source located in the second breeding room.

[0010] In some embodiments, the zooplankton cultivation device further includes: at least one of a culture medium dosing device, a water quality monitoring device, a heating device, a cooling device, and an oxygenation device disposed in the first breeding room.

[0011] In some embodiments, the bottom surface of the first breeding chamber is paved with a filler having a porous structure, wherein:

[0012] The filler comprises biomass material; and / or

[0013] The thickness of the filler is not less than 1 cm.

[0014] In some embodiments, the filler is a single-layer filler; or

[0015] The filler is a multi-layer filler, and at least two layers of fillers are made of different materials and / or particle sizes.

[0016] In some embodiments, the zooplankton cultivation device also includes a sediment pipeline laid at the bottom of the pump chamber, the breeding room, and the acclimation room and extending upward from the cultivation chamber, and a second suction pump connected to one end of the sediment pipeline extending from the cultivation chamber, and the portions of the sediment pipeline located in the pump chamber, the breeding room, and the acclimation room respectively have sediment holes.

[0017] In some embodiments, the culture chamber comprises a side wall and a bottom wall connected to the side wall, the bottom wall comprises two inclined wall portions opposite to each other in a V-shape and a horizontal wall portion connecting the two inclined wall portions; and / or

[0018] The zooplankton culture device also includes a sunshade arranged above the culture chamber and fixedly connected to the bracket, and an ultraviolet lamp is arranged on one side of the sunshade close to the culture chamber.

[0019] The present disclosure also provides a method for cultivating zooplankton, which is carried out using any of the aforementioned zooplankton cultivation devices. The method comprises sequentially performing the following steps:

[0020] Adding zooplankton, algae, microbial strains and culture solution into the first breeding room, and culturing at a temperature of 5° C. to 30° C. for 7 to 14 days;

[0021] Turn on the induced light source to make the zooplankton accumulate in the second breeding room;

[0022] Adding acclimatization water to the acclimatization room, turning on the first suction pump, and allowing the zooplankton in the second breeding room to enter the acclimatization room;

[0023] When the density of zooplankton is not less than 100ind / L, the zooplankton is discharged from the outlet of the acclimation room.

[0024] In some embodiments, the step of adding zooplankton, algae, microbial strains and culture solution to the first breeding chamber and culturing the breeding chamber at a temperature of 5° C. to 30° C. for 7 to 14 days further comprises:

[0025] A culture medium is added to the first breeding chamber at intervals of a set time period.

[0026] In some embodiments, the culturing method further comprises:

[0027] After the zooplankton in the second breeding room enters the acclimatization room and before the zooplankton is discharged from the water outlet, the following steps are repeated 2 to 10 times in the acclimatization room:

[0028] After the zooplankton in the second breeding room enters the acclimation room for 2 to 4 days, part of the water in the acclimation room is drained and then the acclimation water is added.

[0029] In some embodiments, the zooplankton is selected from at least two zooplanktons of copepods, cladocerans, and rotifers; and / or

[0030] The microbial strains include at least one microbial strain of the genus Bacillus, Saccharomyces, Rhodospirilla, and Pseudomonas; and / or

[0031] The algae are selected from at least two of Chlorella, Scenedesmus, Platymonas, and Oscillatoria.

[0032] In the zooplankton cultivation device provided by the embodiment of the present disclosure, the zooplankton first grows and reproduces in the first breeding room. After a period of cultivation, the induced light source is turned on to gather the zooplankton in the second breeding room, and then the first suction pump is turned on to allow the zooplankton to enter the acclimation room, where the zooplankton continues to reproduce and adapt to the external environment, and finally is discharged into the natural water body to repair the ecology. After the zooplankton is cultivated and reproduced in the breeding room and reproduced and adapted to the natural environment in the acclimation room, the survival rate of the zooplankton is improved after entering the natural environment water body, and it is not easy to enter a dormant state, thereby improving the repair effect of the natural water body ecosystem.

[0033] Of course, the product or method implementing any embodiment of the present disclosure does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following briefly introduces the drawings required for use in the embodiments of the present disclosure or related technologies. Obviously, the drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 A schematic diagram of a zooplankton culture device according to some embodiments of the present disclosure;

[0036] Figure 2 It is a left view of the zooplankton culture device according to some embodiments of the present disclosure;

[0037] Figure 3 for Figure 2 An AA sectional view of the zooplankton culture device shown;

[0038] Figure 4 for Figure 2 A BB-direction cross-sectional view of the zooplankton culture device shown;

[0039] Figure 5 FIG. 1 is a top view of a zooplankton cultivation device according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field based on this application belong to the scope of protection of the present disclosure.

[0041] In the related technology, cultured zooplankton is usually added directly into natural water bodies. However, the zooplankton will be eaten by fish and the like, and will die in large numbers or enter a dormant state due to the influence of environmental temperature, dissolved oxygen, toxic substances, etc., and has little effect on the repair of the natural water ecosystem.

[0042] The embodiments of the present disclosure provide a zooplankton cultivation device and a zooplankton cultivation method to improve the survival rate of zooplankton, thereby improving the restoration effect on the natural water ecosystem.

[0043] like Figure 1 , Figure 2 and Figure 3 As shown, the zooplankton cultivation device 1 comprises:

[0044] A support 10 and at least one floating body 20 fixed to the support 10;

[0045] The culture cabin 30 is fixed to the support 10. The culture cabin 30 is open and includes a pump chamber 31, an acclimation chamber 33, and a first breeding chamber 321 and a second breeding chamber 322 located between the pump chamber 31 and the acclimation chamber 33 and communicating with each other at the bottom. The first breeding chamber 321 is closer to the pump chamber 31 than the second breeding chamber 322. The second breeding chamber 322 is communicated with the top of the acclimation chamber 33. The bottom of the pump chamber 31 is provided with a water inlet mesh plate 311, and the acclimation chamber 33 is provided with a water outlet 331.

[0046] A first suction pump 312 provided on the water inlet mesh plate 311;

[0047] A water inlet pipeline 313 connected to the first suction pump 312 and having a water outlet located above the first breeding chamber 321; and

[0048] An induction light source 323 is located in the second breeding room 322 .

[0049] In the zooplankton cultivation device 1 provided by the embodiment of the present disclosure, the zooplankton first grows and reproduces in the first breeding chamber 321. After a period of cultivation, the induced light source 323 is turned on to gather the zooplankton in the second breeding chamber 322. Then, the first suction pump 312 is turned on, and the water level in the second breeding chamber 322 rises, so that the zooplankton accumulated in the second breeding chamber 322 enters the acclimation chamber 33, and water from the natural water body is added to the acclimation chamber 33 to continue to reproduce and adapt to the external environment, and finally discharged into the natural water body to repair the ecology. After the zooplankton is cultivated and reproduced in the first breeding chamber 321 and the second breeding chamber 322, and reproduced and adapted to the natural environment in the acclimation chamber 33, after entering the natural environment water body, the survival rate is improved, and it is not easy to enter a dormant state, thereby improving the repair effect of the natural water body ecosystem. Among them, the water outlet 331 of the acclimation chamber 33 is located above the natural water body.

[0050] Specifically, Figure 3 As shown, in some embodiments, the pump chamber 31 and the first breeding chamber 321 are separated by the first partition 301 and the pump chamber 31 and the first breeding chamber 321 are not connected; the first breeding chamber 321 and the second breeding chamber 322 are separated by the second partition 302 and the tops of the first breeding chamber 321 and the second breeding chamber 322 are connected, so that zooplankton can enter the acclimation chamber 33 under the action of the induced light source 323; the second breeding chamber 322 and the acclimation chamber 33 are separated by the third partition 303 and the tops of the second breeding chamber and the acclimation chamber 33 are connected, so that zooplankton can enter the acclimation chamber 33.

[0051] In addition, if Figure 2 As shown, at least one float 20 fixed on the bracket 10 can make the culture chamber 30 partially enter the water. Preferably, the zooplankton culture device 1 provided by the present disclosure includes a plurality of floats 20, which are arranged around the culture chamber 30 to keep the culture chamber 30 balanced in the water.

[0052] In some embodiments of the present disclosure, the induction light source 323 can be set in the water body of the second breeding room 322, or can be set above the water body. Preferably, the induction light source 323 is set above the water body, so that after turning on the induction light source 323, zooplankton is more likely to gather above the second breeding room 322, and then the first suction pump 312 is turned on to raise the water level of the second breeding room 322, and zooplankton is more likely to enter the acclimation room 33. Specifically, as Figure 3 As shown, the first breeding chamber 321 and the second breeding chamber 322 are separated by the second partition 302, and the induction light source 323 can be arranged on one side of the second partition 302 close to the second breeding chamber 322 and away from the end of the water body.

[0053] like Figure 3 and Figure 4 As shown, in some embodiments of the present disclosure, the zooplankton culture device 1 further includes: at least one of a culture agent dosing device 324, a water quality monitoring device 325, a heating device 326, a cooling device 327, and an oxygenation device 328, which are arranged in the first breeding room 321. The culture agent dosing device 324 is used to add a culture agent to the first breeding room 321, and the culture agent dosing device 324 contains at least one microbial strain; the water quality monitoring device 325 is used to detect the temperature, dissolved oxygen and other parameters of the water in the first breeding room 321; the heating device 326 is used to heat the water in the first breeding room 321; the cooling device 327 is used to cool the water in the first breeding room 321; and the oxygenation device 328 is used to increase the dissolved oxygen content of the water in the first breeding room 321.

[0054] Specifically, the aforementioned microbial species include at least one microbial species of the genera Bacillus, Saccharomyces, Rhodospirilla, and Pseudomonas, wherein the genus Bacillus is selected from Bacillus subtilis, Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus pumilus, Bacillus licheniformis, etc., the genus Saccharomyces cerevisiae is selected from Saccharomyces cerevisiae, Saccharomyces cerevisiae, etc., the genus Rhodospirilla is selected from Rhodospirilla moris, Rhodospirilla flavescentis, Rhodospirilla crimson, etc., and the genus Pseudomonas is selected from Pseudomonas fluorescens, Rhodopseudomonas palustris, etc.

[0055] During the growth of zooplankton, the conditions of the water environment are crucial. Therefore, one or more of the culture agent addition device 324, the water quality monitoring device 325, the heating device 326, the cooling device 327, and the oxygenation device 328 can be selected for installation according to actual conditions to regulate the water environment in the first breeding room 321 to meet the growth needs of zooplankton.

[0056] The zooplankton culture device 1 also includes a controller 50 that can control the opening and closing of the culture agent adding device 324, the water quality monitoring device 325, the heating device 326, the cooling device 327, and the oxygenation device 328 to improve the automation of the zooplankton culture device 1. For example, the zooplankton culture device 1 includes a water quality monitoring device 325 and a heating device 326 located in the first breeding room 321 and electrically connected to the controller 50. When the water quality monitoring device 325 detects that the temperature of the water in the first breeding room 322 is lower than the set temperature range, it sends a heating signal to the controller 50, and then the controller 50 controls the heating device 326 to open for heating. When the water quality monitoring device 325 detects that the temperature of the water is within the set temperature range, it sends a signal to the controller 50 to close the heating device 326, and the controller 50 controls the heating device 326 to close. Of course, the culture agent adding device 324, the water quality monitoring device 325, the heating device 326, the cooling device 327, and the oxygenation device 328 can also be turned on and off by the operator. The set temperature range can be set according to the actual zooplankton to be cultured.

[0057] In some embodiments of the present disclosure, the culture medium dosing device 324 and the cooling device 327 are located above the water body in the first breeding room 322, and the water quality monitoring device 325 and the heating device 326 are located in the water body in the first breeding room 322. Specifically, the heating device can be but not limited to a heating rod, etc., the cooling device can be but not limited to an exhaust fan, and the oxygenation device can be but not limited to an aeration fan, an aerator, etc.

[0058] In some embodiments of the present disclosure, a filler 329 having a porous structure is laid on the bottom surface of the first breeding room 321, and the thickness of the filler 329 is not less than 1 cm, preferably, the thickness is not less than 2 cm. The filler 329 with a porous structure is not only conducive to the attachment and growth of microorganisms in the water body and the decomposition of sediments in the water, but also provides a habitat for the larvae of zooplankton and protects the dormant bodies produced regularly by zooplankton, and can also purify the water body.

[0059] Specifically, the filler 329 comprises biomass material, preferably, the biomass material is selected from biomass carbon material, zeolite particles, activated carbon, diatomaceous earth particles, for example, bottom slag produced by a biomass power plant. The particle size of the biomass material is 10 mm to 60 mm.

[0060] In some embodiments of the present disclosure, the filler 329 can be a single-layer filler or a multi-layer filler. When the filler is a multi-layer filler, the materials of at least two layers of fillers are different, or the particle sizes of at least two layers of fillers are different, or the materials and particle sizes of at least two layers of fillers are different. The multi-layer structure design of the filler can more effectively purify the water body and provide a habitat for the larvae and dormant bodies of zooplankton. For example, the filler includes three layers of biochar material, the particle size of the first layer of filler is 10mm to 15mm, the particle size of the second layer of filler is 45mm to 60mm, and the particle size of the third layer of filler is 20mm to 30mm. The particle size of the first layer of filler is the smallest, which can intercept most of the sediment in the water, and the second and third layers can protect the larvae and dormant bodies of zooplankton.

[0061] like Figure 4 As shown, in some embodiments of the present disclosure, the zooplankton culture device 1 also includes a sediment pipeline 61 laid at the bottom of the pump chamber 31, the first breeding chamber 321, the second breeding chamber 322, and the acclimation chamber 33 and extending upward from the culture chamber 30, and a second suction pump 62 connected to one end of the sediment pipeline 61 extending from the culture chamber 30, and the portions of the sediment pipeline 61 located in the pump chamber 31, the first breeding chamber 321, the second breeding chamber 322, and the acclimation chamber 33 respectively have sediment holes 611. Under the action of the second suction pump 62, the sediment at the bottom of the pump chamber 31, the first breeding chamber 321, the second breeding chamber 322, and the acclimation chamber 33 can be sucked out through the sediment holes 611 on the sediment pipeline 61, thereby reducing the maintenance cost of the zooplankton culture device 1 under long-term use. In addition, discharging the sucked-out sediment into a nearby natural water body can also provide nutrients for microorganisms in the water body. The sediment holes on the sediment pipeline include the portion where the sediment pipeline contacts the bottom of the culture chamber 30 .

[0062] like Figure 5 As shown, in some embodiments of the present disclosure, the filler includes two filler units 329a and 329b, the bottom mud pipeline 61 is located between the two filler units 329a and 329b, and the bottom mud holes on the bottom mud pipeline include the bottom mud holes distributed on the sides of the bottom mud pipeline close to the two filler units 329a and 329b. In this way, under the action of the second suction pump 62, due to the large pore size on the filler, the sediment deposited in the filler can also be sucked out to extend the service life of the filler.

[0063] like Figure 2 As shown, in some embodiments of the present disclosure, the culture chamber 30 includes a side wall 304 and a bottom wall connected to the side wall 304, and the bottom wall includes two V-shaped opposite inclined wall parts 305 and 306 and a horizontal wall part 307 connecting the two inclined wall parts 305 and 306. Such a structure can reduce the resistance of the bottom wall when entering the water, and can also keep the culture chamber 30 balanced after entering the water.

[0064] like Figure 3 and Figure 4 As shown, in some embodiments of the present disclosure, the zooplankton culture device 1 further includes a sunshade 40 disposed above the culture chamber 30 and fixedly connected to the bracket 10, and an ultraviolet lamp 41 is disposed on one side of the sunshade 40 close to the culture chamber 30. The setting of the sunshade 40 can effectively prevent rainwater from entering the first breeding chamber on rainy days, or prevent excessive exposure to the sun from affecting the growth and reproduction of zooplankton, and the ultraviolet lamp 41 disposed on the sunshade 40 can disinfect the culture chamber 30 to meet the growth conditions of zooplankton.

[0065] The present disclosure also provides a method for cultivating zooplankton, which is carried out by using any of the above-mentioned zooplankton cultivation devices 1. The method comprises sequentially performing the following steps:

[0066] Add zooplankton, algae, microbial strains and culture solution into the first breeding chamber 321, and culture at a temperature of 5° C. to 30° C. for 7 to 14 days;

[0067] Turning on the induced light source 323 to allow zooplankton to accumulate in the second breeding chamber 322;

[0068] Add acclimation water to the acclimation chamber 33, turn on the first suction pump 312, and allow the zooplankton in the second breeding chamber 322 to enter the acclimation chamber 33;

[0069] When the density of zooplankton is not less than 100 ind / L, the zooplankton is discharged from the water outlet 331 of the acclimation chamber 33.

[0070] During the cultivation of zooplankton, zooplankton feeds on algae and microorganisms. Microorganisms can decompose organic matter produced by zooplankton to prevent the water in the first breeding room 321 from becoming organic, and algae can absorb nitrogen and phosphorus therein, thereby realizing the recycling of materials. Zooplankton grows and reproduces in the first breeding room 321, and the induced light source 323 is turned on to make the zooplankton accumulate in the second breeding room 322, and then enter the acclimation room 33 for further cultivation, so that the zooplankton further reproduces to a density of not less than 100ind / L and is discharged from the outlet 331 of the acclimation room 33. The acclimation water added to the acclimation room 33 contains water from natural water bodies, so that the zooplankton can adapt to the environment of natural water bodies and avoid large-scale death or dormancy of zooplankton when entering natural water bodies. In addition, during the entire cultivation process, there is no need for excessive human intervention, the operability is strong, and it is helpful to the construction of ecological communities in natural water bodies.

[0071] In the process of adding zooplankton, algae, microbial culture agent and culture solution into the first breeding chamber 321 and culturing at a temperature of 5°C to 30°C for 7 to 14 days, microbial strains can be added to the first breeding chamber 321 at set time intervals to compensate for the microorganisms consumed during the growth of zooplankton, so that the zooplankton can continue to grow and reproduce. There is no particular limitation on the length of the set time, and it can be selected according to the actual zooplankton to be cultured.

[0072] After the zooplankton in the second breeding room 322 enters the acclimation room 33, before the zooplankton is discharged from the water outlet 331, the following steps are repeated 2 to 10 times in the acclimation room: After the zooplankton in the second breeding room 322 enters the acclimation room 33 for 2 to 4 days, part of the water in the acclimation room 33 is discharged and then the acclimation water is added. In the process of repeating the above steps, the proportion of acclimation water in the acclimation room 33 is continuously increased, so that the zooplankton can gradually adapt to the environment of the acclimation water, that is, the environment of the natural water body. Therefore, the mortality rate of the zooplankton after entering the natural water body is significantly reduced, and it will not enter a dormant state due to sudden changes in the environment, thereby improving the repair effect of the natural water body ecosystem.

[0073] In the cultivation method provided by the present disclosure, the aforementioned zooplankton is selected from at least two zooplanktons of copepods, cladocerans, and rotifers. Preferably, the aforementioned zooplankton at least includes copepods or cladocerans. The aforementioned categories of zooplankton are easy to cultivate and have a good restoration effect on the natural water ecology. Specifically, copepods are selected from large-scale middle-dart Daphnia, right-pointing new dart Daphnia, neighboring sword Daphnia, widespread middle-dart Daphnia, Taiwan warm sword Daphnia, etc., cladocerans are selected from Daphnia granitida, large Daphnia, naked belly Daphnia, and exquisite Daphnia, etc., and rotifers are selected from Brachionus calycii, Brachionus angularus, Brachionus amphipodus, crystal capsule rotifer, warty hair rotifer, split-foot rotifer, three-limbed rotifer, needle-clustered multi-limbed rotifer, bubble rotifer, tortoise shell rotifer, etc.

[0074] The aforementioned microbial strains include at least one of the genera Bacillus, Saccharomyces, Rhodospirilla, and Pseudomonas. Specifically, the genus Bacillus is selected from Bacillus subtilis, Bacillus subtilis, Bacillus amyloliquefaciens, Bacillus pumilus, Bacillus licheniformis, etc., the genus Saccharomyces is selected from Saccharomyces cerevisiae, Saccharomyces cerevisiae, etc., the genus Rhodospirilla is selected from Rhodospirilla moris, Rhodospirilla flavorum, Rhodospirilla crimson, etc., and the genus Pseudomonas is selected from Pseudomonas fluorescens, Rhodopseudomonas palustris, etc. The use of the aforementioned genera is more conducive to the cultivation of the aforementioned zooplankton.

[0075] The algae are selected from at least two of Chlorella, Scenedesmus, Platymonas, and Oscillatoria. In the process of zooplankton cultivation, when the culture system contains more than two zooplankton, algae and microbial strains suitable for zooplankton can be selected according to the types of zooplankton. In this way, the recycling of materials formed in the cultivation process is more conducive to the simultaneous growth and reproduction of multiple zooplankton. Compared with cultivating multiple zooplankton separately, the utilization rate of resources is improved, and after entering the natural water body, more than two zooplankton can further improve the restoration effect of the natural water ecosystem.

[0076] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of more restrictions, the elements defined by the statement "comprise one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.

[0077] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0078] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the protection scope of the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure are included in the protection scope of the present disclosure.

Claims

1. A zooplankton culture device, characterized in that: include: A support and at least one floating body fixed to the support; A culture cabin, fixed to the support, the culture cabin is open, including a pump room, an acclimation room, and a first breeding room and a second breeding room located between the pump room and the acclimation room and communicating with each other at the bottom, wherein the first breeding room is closer to the pump room than the second breeding room, the second breeding room and the acclimation room are communicated at the top, the pump room has a water inlet mesh plate at the bottom, and the acclimation room has a water outlet; A first suction pump provided on the water inlet screen; a water inlet pipeline connected to the first suction pump and having a water outlet located above the first breeding chamber; and An induction light source located in the second breeding room.

2. The zooplankton culture device according to claim 1, characterized in that: It also includes: at least one of a culture medium adding device, a water quality monitoring device, a heating device, a cooling device, and an oxygenating device arranged in the first breeding room.

3. The zooplankton culture device according to claim 1, characterized in that: The bottom surface of the first breeding room is paved with a filler having a porous structure, wherein: The filler comprises biomass material; and / or The thickness of the filler is not less than 1 cm.

4. The zooplankton cultivation device according to claim 3, characterized in that: The filler is a single-layer filler; or The filler is a multi-layer filler, and at least two layers of fillers are made of different materials and / or particle sizes.

5. The zooplankton culture device according to claim 1, characterized in that: It also includes a sediment pipeline laid at the bottom of the pump room, the breeding room, and the acclimation room and extending upward from the culture chamber, and a second suction pump connected to one end of the sediment pipeline extending from the culture chamber, and the portions of the sediment pipeline located in the pump room, the breeding room, and the acclimation room are respectively provided with sediment holes.

6. The zooplankton culture device according to any one of claims 1 to 5, characterized in that: The culture chamber comprises a side wall and a bottom wall connected to the side wall, wherein the bottom wall comprises two opposite inclined wall portions in a V-shape and a horizontal wall portion connecting the two inclined wall portions; and / or The zooplankton culture device also includes a sunshade arranged above the culture chamber and fixedly connected to the bracket, and an ultraviolet lamp is arranged on one side of the sunshade close to the culture chamber.

7. A method for cultivating zooplankton, using the zooplankton cultivation device according to any one of claims 1 to 6 for cultivation, characterized in that: The culture method comprises sequentially performing the following steps: Adding zooplankton, algae, microbial strains and culture solution into the first breeding room, and culturing at a temperature of 5° C. to 30° C. for 7 to 14 days; Turn on the induced light source to make the zooplankton accumulate in the second breeding room; Adding acclimatization water to the acclimatization room, turning on the first suction pump, and allowing the zooplankton in the second breeding room to enter the acclimatization room; When the density of zooplankton is not less than 100ind / L, the zooplankton is discharged from the outlet of the acclimation room.

8. The culture method according to claim 7, characterized in that: The method of adding zooplankton, algae, microbial strains and culture solution into the first breeding room and culturing at a temperature of 5° C. to 30° C. for 7 to 14 days also includes: A culture medium is added to the first breeding chamber at intervals of a set time period.

9. The culture method according to claim 7, characterized in that: Also includes: After the zooplankton in the second breeding room enters the acclimatization room and before the zooplankton is discharged from the water outlet, the following steps are repeated 2 to 10 times in the acclimatization room: After the zooplankton in the second breeding room enters the acclimation room for 2 to 4 days, part of the water in the acclimation room is drained and then the acclimation water is added.

10. The culture method according to any one of claims 7 to 9, characterized in that: The zooplankton is selected from at least two zooplanktons of copepods, cladocerans, and rotifers; and / or The microbial strains include at least one microbial strain of the genus Bacillus, Saccharomyces, Rhodospirilla, and Pseudomonas; and / or The algae are selected from at least two of Chlorella, Scenedesmus, Platymonas, and Oscillatoria.

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