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Device suitable for studying phototactic ethology of minitype fishes

A fish and behavior technology, applied in the field of aquaculture, can solve the problems of lack of rigor in research results, fish fright, and low accuracy, and achieve the effects of accurate and reliable research results, overcoming interference, and reducing errors.

Inactive Publication Date: 2012-08-01
FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no special research device for the study of fish phototaxis behavior. Instead, a corner of the aquaculture water body is directly illuminated by a lamp, and the number of fish schools at different distances from the light source is counted by artificial naked eyes. The research results lack certain rigor due to disturbing factors such as scaring and the difficulty of counting fish swimming in real time

Method used

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  • Device suitable for studying phototactic ethology of minitype fishes
  • Device suitable for studying phototactic ethology of minitype fishes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, fill the aquarium 1 with water to a water depth of 40 cm, turn on the circulating water temperature control filter system 8, adjust the water temperature, put 50 fishes to be studied, and turn on the adjustable light source 2, the computer remote control terminal 10 and the camera after 24 hours of dark adaptation 4. The adjustable light source 2 adopts an incandescent lamp; after adjusting the light intensity of the light emitted by the adjustable light source 2, leave the dark room, watch and record the fish swimming in the aquarium 1 on the computer remote control terminal 10, wait for After the fish swimming gradually stabilized, it began to record the number of fish distribution in different areas, and took pictures every 3 minutes and recorded it once. After repeating many times, the distribution of fish in different areas was counted, and it was measured by the underwater illuminance meter 7 The light intensity interval of the fish school's favorite area un...

Embodiment 2

[0023] When the device starts to be used, first fill the aquarium 1 with water to a water depth of 40 cm, turn on the circulating water temperature control filter system 8, adjust the water temperature, put 10 fishes to be studied, and turn on the adjustable light source after 24 hours of dark adaptation. After controlling the terminal 10 and the video camera 4, after adjusting the light intensity of the light emitted by the adjustable light source 2, leave the dark room, watch and record the fish swimming in the aquarium 1 on the computer remote control terminal 10, and track and record 10 through software. The swimming route of the tail fish and the residence time in different light intensity areas describe the individual behavior of the fish under light stimulation. At the same time, the water temperature in the aquarium 1 is adjusted through the circulating water temperature control filter system 8, and the water temperature under the gradient water temperature is observed. ...

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Abstract

The invention relates to a device suitable for studying phototactic ethology of minitype fishes, and is characterized in that an aquarium box is placed in a dark chamber; the outer part at one end of the aquarium box is provided with an adjustable light source; the bottom of the aquarium box and other parts except for the periphery of the adjustable light source end are not light transmitting; the aquarium box is internally provided with a dividing ruler; the dividing ruler divides the aquarium box into a plurality of regions according to the illumination intensity attenuation direction, and the different regions are divided by a division scale region; a guide rail is arranged deadly above the aquarium box; the guide rail is provided with a plurality of cameras corresponding to the center and the boundary of each region; an underwater illuminometer is suspended on the guide rail, and can move randomly in the aquarium box along the length direction of the guide rail; and a computer remote control terminal is connected with the cameras, and is used for controlling the moving of the cameras and tracking and recording the swimming paths of the fishes. The device suitable for studying phototactic ethology of the minitype fishes provided by the invention can study the phototactic behavior of the minitype fishes, and can remove the interference of artificial factors, thus the studied results are accurate and reliable.

Description

technical field [0001] The invention relates to a device for studying the behavior of aquatic animals, in particular to a device suitable for studying the phototaxis behavior of small fish, which belongs to the technical field of fish farming. Background technique [0002] The research on the effect of light on fish behavior began in the early 20th century. Since then, there have been many research reports on this issue at home and abroad, focusing on the relationship between the phototaxis and fishing of different marine fishes. Fish phototaxis refers to the movement response of fish under the stimulation of light, which is an important behavior for fish to adapt to the environment. The phototaxis of fish is closely related to its vision. Different species of fish and different growth stages of the same species of fish will have different phototaxis. At present, there is no special research device for the study of fish phototaxis behavior. Instead, a corner of the aquacult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K63/00A01K63/06
Inventor 杨弘肖炜李大宇祝璟琳单航宇韩珏
Owner FRESHWATER FISHERIES RES CENT OF CHINESE ACAD OF FISHERY SCI
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