A small aquatic animal field environmental test system and method

Abstract

The invention relates to a field environment test system for small aquatic animals. The system comprises a support and culture boxes fixed on the support; the side faces of the culture boxes are made of a material with multiple holes, the tops and the bottoms of the culture boxes are made of a continuous material, and feeding guide pipes are arranged in the culture boxes. A method adopting the system for a test comprises the steps that the system is placed in a testing water area according to the test requirements, the height direction of the support is consistent with the water depth direction, and the small aquatic animals are cultured in the culture boxes; the small aquatic animals are fed through the feeding guide pipes, the behavior characteristics of the aquatic animals are recorded through photography devices, and the step is continuously performed for one test cycle; the survival number of the small aquatic animals is counted, living samples of the small aquatic animals are collected, quickly frozen by adopting liquid nitrogen and taken back, and the influence of a water body and sediment in the testing water area on the toxic effect of the small aquatic animals is detected. Compared with the prior art, the influence of the in-situ water body on the behavioral and physiological effects of the tested animals from the different time and space levels can be researched.

Description

technical field [0001] The invention belongs to the field of environmental monitoring, and relates to a small aquatic animal field environment test system and method, in particular to a small aquatic animal field environment long-term exposure test and behavior change online observation system and method. Background technique [0002] At present, all over the world, pollutants such as domestic sewage and industrial wastewater discharge, atmospheric deposition, and non-point source pollution of pesticides cause water pollution to varying degrees. Water pollutants include heavy metals such as lead, mercury, and cadmium, and persistent organic pollutants such as organochlorine pesticides, polychlorinated biphenyls, and polybrominated diphenyl ethers. Most of these pollutants have lethal, teratogenic and Carcinogenic "three-cause effect" and environmental estrogen effects. Therefore, the toxicological research of water pollutants has received widespread attention all over the w...

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Problems solved by technology

However, the organisms were not fed during the experiment, and long-term exposure studies of aquatic animals could not be realized

Moreover, the depth adjustment component is installed on the top of the in-situ test device, and the test culture unit is connected to the test culture unit through the tape of the hand-operated fiber ruler, which cannot play a fixed role against large wind waves. Therefore, this device is only suitable for wind waves and water current smaller bay

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