CN214853768U - Plankton sample collection system in water - Google Patents

Abstract

The utility model provides a plankton sample collection system in water belongs to water microorganism collection system technical field. The zooplankton sample collection device in the water body comprises a frame body with a hole and a floating body arranged on the frame body; the periphery of the frame body is provided with a conical capturing opening, a large opening of the capturing opening faces outwards, a small opening faces inwards, and the bottom end of the frame body is provided with a separation net. The utility model provides a plankton sample collection system in water, reasonable in design, compact structure, simple manufacture, low cost, easy operation, the management is convenient, and the energy consumption is little, green, and application scope is wide, can improve the collection rate.

Description

Plankton sample collection system in water

Technical Field

The utility model relates to a water microorganism collection system technical field especially relates to a zooplankton sample collection system in water.

Background

The zooplankton is an economic aquatic animal; is an important bait for fishes and other economic animals in the middle and upper water areas, and has important significance for the development of fishery. Since the distribution of many zooplankton species is climate dependent, they can also be used as warm and cold flow indicators. Many zooplankton are important bait sources for fish and shellfish, and some species such as acete chinensis and jellyfish can be used as food for human. In addition, there are many species that can serve as indicators of water contamination. For example, in eutrophic water, dominant species of common forms such as Moina, Cyclina, Brachionus and the like exist. Some species, such as Tetrahymena pyriformis (Tetrahymena phrformis), Daphnia magna (Daphnia magna), etc., are used as experimental animals in toxicological tests. Zooplankton eat smaller animals and plants than they are, in fact, mainly also plants, photosynthesis being the most fundamental.

Therefore, the importance of zooplankton to the environment and its breeding industry is very prominent. The attention of the scientific research and the breeding industry is also very high. At present, relatively few devices are used for collecting zooplankton samples in water and enriching and concentrating zooplankton in water in the breeding industry. In the research level, a zooplankton filter screen of 200 meshes is mainly adopted for capturing, or the research is carried out after water is collected and then the water is fixed, concentrated and precipitated; while the filtration and concentration method is mainly adopted in the breeding industry.

Zooplankton can be divided into: giant zooplankton larger than 1cm, such as jellyfish; large zooplankton, 5-10 mm, such as large copepods and shrimps; medium zooplankton of 1-5 mm, such as small jellyfish and copepods; small zooplankton. Common zooplankton include rotifers, cladocerans, copepods, and protozoa.

Rotifers: the length of the panonychus ulmi schott is 0.2-0.6mm, and the generation time is 1.25-7 days. The variety and the existing stock are more, and the fish feed is the best palatable food for the fish fries in the pond. The main types in fish ponds in China are as follows: brachionus calyciflorus, brachionus horneri, brachionus ampullatus, Rotiformis giganteus, Rotiformis cystocellata, Rodinaria verrucosa, Rodinia trifoliata, Rodinia fasciata, Rodinia unilocularis, and Rodinia testudinis.

Cladocera species: it is also called daphnia for short, daphnia (daphnia), commonly called as red worm, and belongs to invertebrates, crustacea, subclass of gill foot, cladocera. The body is short and small, the body length is generally 0.3-3mm, and the body is long and round according to specific types, for example, the daphnia magna can reach about 4.2mm and is divided into a head part and a body part, and the lateral flat body section is not obvious. Except for the exposed head, the rest part of the body is wrapped in a transparent mesomorphic shell flap. The head has 2 pairs of obvious tentacles, the 1 st pair of tentacles is smaller, and the 2 nd pair is specially developed and can be divided into an inner branch and an outer branch which can move in water and are moving organs. 4-6 pairs of pectoral limbs can generate water flow when swinging, and long bristles are arranged on the pectoral limbs and can filter food and send the food into the mouth.

Copepods: belonging to the phylum Arthropoda, Crustacea and copepoda. Is small crustacean with body length of 0.5-5mm, and is distributed in sea, fresh water or brackish water. Copepods move rapidly, have relatively long generation cycle, and have less significance as baits for aquaculture than rotifers and cladocerans. The body is lengthwise and divided into sections, the number of the body sections is not more than 11, and the head section is 1, the chest section is 5, and the abdomen section is 5. The head is provided with an eyepoint, two pairs of antennae and three pairs of mouthpieces. The chest has 5 pairs of chest feet, the first four pairs have the same structure, the two limbs are of the same type, the fifth pair is usually degenerated, and the two sexes are different. No appendage is arranged on the abdomen, the tail end is provided with a pair of tail forks, and a plurality of pinnate seta are arranged behind the tail forks. Female abdominal regions are frequently accompanied by oocysts. And (5) metamorphosis and development. I.e. nauplii and copepods.

Protozoa: single cell micro species (<0.2mm) with generation time less than one day, many species and small amount of present stock. Ciliates are the main species in fish ponds in China, and the main species are as follows: shell worms, bouncing worms, heroic robbers, bugles, bell worms, and the like. Protozoa and rotifers have shorter generation times and reproduce faster, and their population numbers usually fluctuate with changes in nutritional conditions.

Because zooplankton has characteristics such as swimming, size discrepancy, life habit difference, therefore above traditional approach is in the process of catching and enriching zooplankton, has usually "a knife cut", and manpower, material resources invest great problem.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses an it is not enough among the prior art to solve, for this reason, the utility model provides a zooplankton sample collection system in water, reasonable in design, compact structure, simple manufacture, low cost, easy operation, the management is convenient, and the energy consumption is little, green, and application scope is wide, can improve the collection rate.

In order to achieve the above object, the utility model provides a following technical scheme:

a zooplankton sample collection device in a water body comprises a frame body with a hole and a floating body arranged on the frame body;

the periphery of the frame body is provided with a conical capture port, a large opening of the capture port faces outwards, a small opening of the capture port faces inwards, and the bottom end of the frame body is provided with a separation net.

Preferably, the outer end of the capturing port is provided with a filter screen with a pore diameter larger than that of the frame body.

Preferably, the screening device further comprises a bucket body connected to the lower end of the separation net and a primary screen body connected to the lower end of the bucket body, and the aperture of the primary screen body is smaller than that of the separation net.

Preferably, a capture lamp is arranged in the bucket body.

Preferably, the bucket body is covered with a light-tight film.

Preferably, the sieve also comprises a secondary sieve body arranged at the lower end of the primary sieve body, and the pore diameter of the secondary sieve body is smaller than that of the primary sieve body.

Preferably, the secondary screen body further comprises a vortex device arranged at the lower end of the secondary screen body.

Preferably, the swirler is an unpowered swirler or a powered swirler.

Preferably, the floating body is made of hollow bamboo tubes or foam.

Preferably, the frame is made of wood or bamboo or stainless steel mesh.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model provides a zooplankton sample collection system in water, reasonable in design, compact structure, simple manufacture, low cost, easy operation, the management is convenient, and the energy consumption is little, green, the wide characteristics of application scope, the extensive popularization of being convenient for does benefit to the capture or the enrichment of different waters zooplankton, can improve the collection rate.

2. The utility model provides a zooplankton sample collection system in water realizes through the net that separates that sets up, one-level screen frame and second grade screen frame that the aperture reduces step by step, can collect different types of zooplankton, has improved the collection rate.

3. The utility model provides a plankton sample collection system in water is applicable to open-air water, aquaculture water and the collection of plankton in the artificial culture plankton water. Is suitable for scientific research sampling, zooplankton enrichment in the breeding industry and the like.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure, 1, a floating body; 2. a basket body; 3. a capture port; 4. filtering with a screen; 5. separating the net; 6. a bucket body; 7. a capture light; 8. a primary screen body; 9. a secondary sieve body; 10. a swirler.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the utility model provides a zooplankton sample collection device in water, which comprises a frame body 2 with pores and a floating body 1 arranged on the frame body 2;

the periphery of the frame body 2 is provided with a conical capture port 3, a large opening of the capture port 3 faces outwards, a small opening faces inwards, and the bottom end of the frame body 2 is provided with a separation net 5.

The utility model discloses in, the aperture size that separates net 5 adopts 1 cm's net usually for filter great zooplankton.

The utility model discloses in, the outer end of catching mouth 3 is provided with the aperture and is greater than the filter screen 4 in the aperture of framework 2 plays and helps the water to flow in, reduces effects such as resistance, zooplankton flow in easily, can also play the effect that filtering impurity and the rivers of being convenient for got into simultaneously.

The utility model discloses in, according to the characteristic of the zooplankton of actual collection, still include connect to separate the bucket body 6 of the net 5 lower extreme and connect to the one-level screen frame 8 of the bucket body 6 lower extreme, the aperture of the one-level screen frame 8 is less than the aperture that separates the net 5, this kind of design, can be with the zooplankton enrichment that the size distributes at this stage in this screen frame; the arrangement of the bucket body 6 meets the hydrodynamics of the water body and is beneficial to the downflow of the water body.

The utility model discloses in, be provided with in the bucket body 6 and catch lamp 7, juvenile animals such as copepoda, small-size shrimp, small-size crab have very strong phototaxis under the illumination of external light source to the gathering is in the light source region, thereby makes the migratory region of cable bait fish to zooplankton to seek to eat best bait. The trapping lamp is a waterproof lamp, the inner endurance is durable, the color of the light can be adjusted according to different trapping objects, and equipment of an automatic color-changing light source can be selected according to requirements.

In the utility model, the bucket body 6 is covered with a light-tight film, which ensures that the light source is mainly in the bucket body 6 and radiates to the basket body 2 to induce the zooplankton in the basket body 2 to enter the bucket body 6; and simultaneously induces zooplankton outside the whole device to enter the basket body 2.

The utility model discloses in, still including set up in second grade screen frame 9 of 8 lower extremes of one-level screen frame, the aperture of second grade screen frame 9 is less than the aperture of one-level screen frame 8 can be with the zooplankton enrichment that the size is littleer at second grade screen frame 9. Wherein can freely dismantle between one-level screen frame 8 and the second grade screen frame 9, also can increase the rank according to the demand simultaneously.

The utility model discloses in, still including set up in the swirler 10 of second grade screen frame 9 lower extreme provides power for water top-down's flow, and wherein the equipment that can select to have power (electric power) in the water of relative stillness then can select unpowered swirler in the water that has rivers or stormy waves, can accomplish the rotation according to water self power, realizes providing power for the vertical flow of water. Meanwhile, the vortex device accelerates the enrichment or capture of zooplankton.

In the present invention, the swirler 10 is an unpowered swirler or a powered swirler, and those skilled in the art can select the swirler according to actual needs.

The utility model discloses in, body 1's material is hollow thick bamboo tube or foam, mainly plays and provides certain buoyancy for whole device.

The utility model discloses in, framework 2 is made by wooden or bamboo or stainless steel mesh, environmental protection, cheap and no secondary pollution, can adopt the preparation of stainless steel mesh material in the great region of some flowing water. The basket body 2 is wrapped by a grid material, wherein the size of the grid can be properly adjusted according to requirements, and a grid of 2cm multiplied by 2cm is usually adopted. The frame body 2 can be adjusted in size and specification according to actual requirements, and the optimal length and width are 1m multiplied by 1m respectively.

The present invention exemplarily provides the following embodiments for carrying out detailed description on the technical solution of the present invention.

Early preparation

1. According to the type of zooplankton to be captured, selecting the size of the grid related to each device unit and the grade number of the screen body; the type of light source of the light.

2. The type of vortex finder is selected based on the state of the body of water, static or flow conditions.

After each assembly is installed, the water body is put into:

example 1:

enriching copepods in flowing water. Copepods are in the phylum Arthropoda, Crustacea, and copepoda. Is small crustacean, and generally has a body length of 0.5-5 mm.

The ratio of each component is as follows: the foam floating body 1 and the basket body 2 are made of stainless steel mesh; the size of the filter screen 4 at the outer end of the capture port 3 is 1cm multiplied by 1 cm; the size of the separation net 5 is 0.8cm multiplied by 0.8 cm; the bucket body 6 is wrapped by opaque materials; the capture lamp 7 is an incandescent lamp; the size of the primary sieve body 8 is 0.5cm multiplied by 0.5 cm; the size of the secondary sieve body 9 is 0.3cm multiplied by 0.3 cm; the swirler 10 is an unpowered swirler.

Example 2:

enrichment and capture of rotifers in a static water body, wherein the rotifers: the length of the Daphnia panigera is 0.2-0.6mm

The ratio of each component is as follows: the hollow bamboo floating body 1 and the basket body 2 are made of bamboo; the size of the filter screen 4 at the outer end of the capture port 3 is 1cm multiplied by 1 cm; the size of the separation net 5 is 0.2cm multiplied by 0.2 cm; the bucket body 6 is wrapped by opaque materials; the capture lamp 7 is an incandescent lamp; the size of the primary sieve body 8 is 0.1cm multiplied by 0.1 cm; the size of the secondary sieve body 9 is 0.03cm multiplied by 0.03 cm; the swirler 10 is a powered swirler.

The above embodiments are merely two examples, and other embodiments of the present invention are not described herein, and the above embodiments are used for understanding the technical solutions of the present invention by those skilled in the art.

The utility model provides an among the above-mentioned collection system, can dismantle the connection between each part, also can be fixed connection, the conventional connected mode of connected mode selection can, to this, do not have special requirement, can select according to the actual demand.

The above is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims (10)

1. A zooplankton sample collection device in a water body is characterized by comprising a frame body with a hole and a floating body arranged on the frame body;

the periphery of the frame body is provided with a conical capture port, a large opening of the capture port faces outwards, a small opening of the capture port faces inwards, and the bottom end of the frame body is provided with a separation net.

2. The zooplankton sample collection device in a water body of claim 1, wherein the outer end of the capture port is provided with a filter screen with a pore size larger than that of the frame body.

3. The zooplankton sample collection device of claim 1, further comprising a hopper body connected to the lower end of the separation net and a primary screen body connected to the lower end of the hopper body, wherein the aperture of the primary screen body is smaller than that of the separation net.

4. The zooplankton sample collection device of claim 3, wherein a capture lamp is arranged in the hopper body.

5. The zooplankton sample collection device of claim 4, wherein the bucket body is covered with a light-tight film.

6. The zooplankton sample collection device of claim 3, further comprising a secondary screen disposed at a lower end of the primary screen, wherein a pore size of the secondary screen is smaller than a pore size of the primary screen.

7. The zooplankton sample collection device of claim 6, further comprising a vortex finder disposed at a lower end of the secondary screen.

8. The zooplankton sample collection device of claim 7, wherein the vortex finder is an unpowered vortex finder or a powered vortex finder.

9. The zooplankton sample collection device of claim 1, wherein the floating body is made of hollow bamboo tube or foam.

10. The zooplankton sample collection device of any one of claims 1-9, wherein the frame is made of wood or bamboo or stainless steel mesh.

Images