Device suitable for minitype aquatic animal temperature selection experiment

Abstract

A device which is applicable to a temperature-selecting experiment for small-sized aquatic animals relates to a device which is used in the temperature-selecting experiment, which can guarantee that mixed channels form stable gradients, and the device only needs a water resource with two temperatures simultaneously, and experiment objects can freely swim in a running channel. The device has the advantages of stable temperature gradients, small size and simple and convenient operation, and comprises a circular device and a running water system, wherein, the circular device is provided with four concentric circular walls on a flat board, the mixed channels are arranged between the number 1 and the number 2 circular walls, the running channel is arranged between the number 2 and the number 3 circular walls, a water discharge channel is arranged between the number 3 and the number 4 circular walls, baffles are respectively arranged in the mixed channels, the running channel and the water discharge channel, the circle center of the flat board is provided with a water discharge hole, the top portion of the outer wall of the mixed channels is provided with an interface, 8 gaps are respectively arrayed on the number 2, the number 3 and the number 4 circular walls, the inner walls of two sides of the running channel are provided with screen meshes, the running water system is provided with a high-temperature water-accumulating barrel and a low-temperature water-accumulating barrel and a water tube, the water tube is led out of the high-temperature water-accumulating barrel and the low-temperature water-accumulating barrel respectively from the insides of the barrels, and is connected with the number 1 circular wall.

Description

technical field [0001] The invention relates to a device for temperature selection experiments, in particular to a device suitable for temperature selection experiments of small aquatic animals. Background technique [0002] Aquatic animals will constantly search for a suitable temperature in the water body, because the suitable temperature is conducive to their growth or / and aerobic metabolism. However, these organisms are easily affected by other environmental factors in the process of selecting the optimum temperature. The currently known environmental factors include dissolved oxygen in the water body, water temperature during temporary cultivation, nutritional status, light intensity, salinity, age, season, Different times of day and coverings etc. These interacting environmental factors and the importance of aquatic animals to temperature adaptation have prompted people to study the optimum temperature of aquatic animals. [0003] Although some experiments with tempe...

AI Technical Summary

Problems solved by technology

The advantage of the experimental device that forms a temperature gradient in the vertical direction is that it is easy to obtain temperature stratification and deeper water, and can avoid the influence of cover and water flow, but its disadvantage is that it will produce different water pressure and light intensity

The advantage of the experimental setup with a temperature gradient in the horizontal direction is that the light intensity is uniform and there is no different water pressure, but its disadvantages are that there will be uneven covering (corners), water flow and relatively shallow water (<3cm, for prevent temperature stratification)

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