CN201451041U - Experimental Setup for Assessing the Effects of Temperature on the Physiology of Fish Juveniles - Google Patents

Abstract

The utility model relates to an experimental device for evaluating the influence of temperature on the physiology of fish juveniles. For circulation and exchange, a submersible pump is placed at the bottom of the water tank. The outlet of the submersible pump is connected to the water pipe. A three-way, the three-way is connected to one end of the ultraviolet sterilizer through a water pipe, and the other end of the ultraviolet sterilizer is connected to the outlet pipe, and the outlet pipe extends into the middle of the water tank, and a thermometer is placed in the water body of the water tank to measure the water body in the water tank temperature. The heating and cooling machine controls the temperature of the water body, and the ultraviolet sterilizer sterilizes the flowing water body. The utility model has compact structure and is easy to use; the temperature setting of the experimental device is simple and accurate.

Description

Experimental Setup for Assessing the Effects of Temperature on the Physiology of Fish Juveniles

technical field

The utility model belongs to the technical field of aquaculture, in particular to an experimental device for evaluating the influence of temperature on the physiology of fish juveniles.

Background technique

Fish are ectothermic animals, and their body temperature changes with the temperature of the water environment. Compared with warm-blooded animals, fish have a slow thermogenesis process, low heat generation, and lack of structures to maintain body temperature. The body temperature of most fish is similar to the ambient water temperature, so water temperature is extremely important for the survival and growth of fish. For most fish, the water temperature directly determines the body temperature of the fish. Therefore, within the appropriate temperature zone, when the water temperature rises, the body temperature of the fish will rise accordingly, and the physiological processes in the body will be accelerated. The water temperature can affect the intensity of various physiological activities of the fish. In the optimum temperature range, as the water temperature rises, the metabolism of fish increases, and the feeding intensity also increases. As a controlling factor, temperature mainly controls the metabolic reaction rate of fish and affects its physiological and biochemical processes, such as food intake, energy demand, metabolic rate, protein synthesis rate, etc., thus becoming an important factor affecting fish activity and growth. environment variables. The growth of fish generally shows a strong dependence on temperature. The maximum growth rate often appears in a relatively narrow water temperature range, and deviation from the optimum water temperature will reduce the growth rate of fish.

When the water temperature exceeds the suitable range for fish, fish will be affected to varying degrees. When the upper limit or the lower limit temperature is reached, the fish die. Rapid changes in water temperature, even within the optimum temperature range, can kill fish. Generally, the range of change that fish can tolerate is 2-5°C. Fry are less tolerant. Therefore, when some rare fish are cultivated indoors, the water temperature needs to be controlled, and the cultured water body needs to be heated when the weather temperature is low.

At present, the method for increasing the water temperature in the laboratory mainly uses heating rods to control the water temperature. To control the water temperature in this way, it is also necessary to be equipped with an electronic temperature controller. Adjust the electronic temperature controller to the desired temperature, and the water temperature can be automatically controlled. Each electronic temperature controller can generally connect 2 heating rods. Although the heating rod and the electronic temperature controller are cheap, in actual use, especially if the electronic temperature controller is used to control the temperature continuously for several months, it is easy to cause the temperature of the thermostat control chip to rise, resulting in damage to the microcomputer control chip, resulting in Accidents occur in fish farming. In addition, the heating rod can only increase the water temperature, but not reduce the water temperature, so that the temperature evaluation experiment can only be limited to the winter when the temperature is low.

Contents of the invention

The technical problem to be solved by the utility model is to provide an experimental device for evaluating the physiological influence of temperature on fish juveniles with simple operation, convenient control and wide application.

The technical solution adopted by the utility model to solve the technical problem is: provide an experimental device for evaluating the physiological influence of temperature on fish juveniles, including water tanks, fish tanks, heating and cooling machines, ultraviolet sterilizers, submersible pumps, water outlet pipes, Upper valve, lower valve, thermometer and water pipe, the water tank is circular, the fish tank is rectangular, each side and the bottom of the fish tank have small holes, which can communicate with the water in the water tank, and the bottom of the water tank is placed A submersible pump, the water outlet of the submersible pump is connected to the water pipe, the water pipe is connected to a tee, one end of the tee passes through a lower valve, and then the water pipe is connected to the heating and cooling machine, and the other end is connected to a tee through an upper valve, and the tee passes through The water pipe is connected to one end of the ultraviolet sterilizer, and the other end of the ultraviolet sterilizer is connected to the outlet pipe. The outlet pipe extends into the middle of the water tank, and a thermometer is placed in the water body of the water tank to measure the temperature of the water body in the water tank. The heating and cooling machine controls the temperature of the water body, and the ultraviolet sterilizer sterilizes the flowing water body.

The water tank is made of fiberglass, with an internal diameter of 1.0 meters and a height of 1.3 meters.

Described aquarium is made of plastics, length, width and height are respectively 50cm * 50cm * 30cm, and the circular hole diameter of each side and bottom surface of aquarium is 3 millimeters.

Described outlet pipe stretches into below 40 centimetres, water tank top.

Beneficial effect

The utility model has the advantages of: compact structure, easy to use; the temperature of the breeding pond can be controlled by the heating and cooling machine; the harmful organisms in the water can be killed by the ultraviolet sterilizer; the circulating water is formed by the submersible pump, which is beneficial to control the quality of the breeding water; the temperature setting of the experimental device Simple and accurate.

Description of drawings

Figure 1. Schematic representation of the experimental setup for assessing the effects of temperature on fish juvenile physiology.

In the figure: 1. Ultraviolet sterilizer 2. Outlet pipe 3. Fish tank 4. Water tank 5. Water 6. Water outlet 7. Submersible pump

8. Upper valve 9. Lower valve 10. Thermometer 11. Water pipe 12. Air conditioner 13. Tee

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

As shown in Figure 1, the utility model is made up of water tank 4, fish tank 3, heating and cooling machine 12, ultraviolet sterilizer 1, submersible pump 7, outlet pipe 2, upper valve 8, lower valve 9, thermometer 10, and water pipe 11. The water tank 4 is circular, made of fiberglass, with an internal diameter of 1.0 meters and a height of 1.3 meters. The fish tank 3 is rectangular, made of plastic, and can float on the water. The length, width and height are 50cm×50cm×30cm. There are many small round holes on each side and bottom of the fish tank 3, and the diameter of the round holes is 3 mm. , the round hole enables the water body in the breeding box to communicate with the water in the water tank, but the experimental fish can only live in the breeding box because the individual is larger than the diameter of the round hole. A 150-watt submersible pump 7 is placed at the bottom of the water tank. The water outlet 6 of the submersible pump 7 is connected to a PVC water pipe 11 with a diameter of 3 cm. Connect the water inlet end of heating and cooling machine 12 by water pipe 11 in the back, and the other end connects another plastic tee after an upper valve 8, and this tee connects ultraviolet sterilizer 1 by the PVC water pipe of diameter 3 centimeters. The ultraviolet sterilizer 1 is connected with a PVC outlet pipe 2 with a diameter of 3 centimeters. Water outlet pipe 2 stretches into below 40 centimeters of water tank 4 tops. The water outlet of the heating and cooling machine 12 is connected to the tee by a water pipe. The heating and cooling machine 12 controls the temperature of the water body, and the ultraviolet sterilizer 1 sterilizes the flowing water body. Place a thermometer 10 in the water body of the water tank 4 for measuring the temperature of the water body in the water tank.

When the experimental device is in use, add water to a height of 1.0 meters, so that the nozzle of the outlet pipe is located below the water surface, so as not to affect the fish due to the sound of falling water. Put the experimental fish into the breeding box. Open the lower valve, close the upper valve, turn on the heating and cooling machine and the ultraviolet sterilizer, set the temperature of the heating and cooling machine to the temperature required for the experiment, then the water in the water tank will pass through the submersible pump, water pipe, lower valve, heating and cooling machine, ultraviolet sterilizer, Outlet pipe to form circulating water. If the temperature set by the air conditioner is higher than the water temperature at that time during the experiment, the air conditioner is in the heating state, otherwise the air conditioner is in the cooling state. After a certain period of time, the temperature of the water body is in a stable state. At this time, read the temperature value of the thermometer. If there is an error between the temperature displayed by the thermometer and the temperature set in the experiment, it is necessary to readjust the temperature of the cooler and heater until the temperature of the water body is corrected. consistent with the temperature required for the experiment.

Sometimes in the temperature evaluation experiment, the natural temperature group is required for comparative experiments, that is, no external temperature control is required for the water body. At this time, the power supply of the cooling and heating machine can be turned off, and the temperature of the water body is not controlled. Then close the lower valve and open the upper valve. Then the water in the water tank passes through the submersible pump, water pipe, upper valve, ultraviolet sterilizer, and outlet pipe to form circulating water. Record the temperature value of the water body every day through the thermometer in the water tank.

Claims (4)

1. an evaluate temperature is to the experimental provision of fish juvenile fish physiological effect, comprise water tank, fish culture box, air conditioner, ultraviolet sterilizer, immersible pump, outlet pipe, last valve, lower valve, thermometer and water pipe, it is characterized in that: described water tank (4) is rounded, fish culture box (3) is rectangle, all there is aperture each side and the bottom surface of fish culture box (3), an immersible pump (7) is placed in water tank (4) bottom, the delivery port (6) of immersible pump (7) links to each other with water pipe, water pipe connects a threeway, threeway one end is connected to air conditioner (12) by a lower valve (9) back by water pipe, the other end is gone up valve (8) back by one and is connected a threeway, threeway is connected by the end of water pipe with ultraviolet sterilizer (1), the other end of ultraviolet sterilizer (1) connects outlet pipe (2), outlet pipe (2) extend into the water tank middle part, places a thermometer (10) in water tank (4) water body.

2. a kind of evaluate temperature according to claim 1 is characterized in that the experimental provision of fish juvenile fish physiological effect: described water tank (4) is made by fiberglass, and inside diameter is 1.0 meters, highly is 1.3 meters.

3. a kind of evaluate temperature according to claim 1 is to the experimental provision of fish juvenile fish physiological effect, it is characterized in that: described fish culture box (3) is made of plastics, the length and width height is respectively 50cm * 50cm * 30cm, and the Circularhole diameter of each side of fish culture box and bottom surface is 3 millimeters.

4. a kind of evaluate temperature according to claim 1 is characterized in that the experimental provision of fish juvenile fish physiological effect: described outlet pipe (2) extend into tank top below 40 centimetres.

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