Breed conservation culture method of daphnia magna

Abstract

The invention belongs to the field of cladocerous zooplankton culture, and relates to a laboratorial breed conservation culture method of daphnia magna. By the breed conservation culture method, long-term stable growth of the daphnia magna in a system can be ensured, and regular supplementation of evaporated water is needed, but addition of additional bait is not required. After adoption of a simple experimental system for breed conservation, the operation is simple, the cost is low, the daphnia magna can grow and propagate steadily, regular field seed collection is not required, troubles of frequent artificial water change, bait feeding and impurity and waste removal in ordinary culture are avoided, and thus a purpose of simple and convenient laboratorial long-term breed conservation is achieved.

Description

technical field [0001] The invention belongs to the field of cladocera zooplankton culture, and in particular relates to a method for cultivating an ecological type Daphnia daphnia conservation species. Background technique [0002] Daphnia magna is a common planktonic crustacean in freshwater ecosystems, an important component of freshwater food chains, and lives in natural waters. It has the advantages of short life cycle, fast reproduction, economy, and sensitivity to poisons. It plays an important role in the aquatic ecosystem and can be used to comprehensively evaluate the toxicity of industrial wastewater, pesticide toxicity, and new chemical toxicity. Daphnia magna is an internationally recognized standard test organism and is widely used in aquatic toxicity tests. With the continuous increase in the application of Daphnia magna in the field of toxicity, countries have established standard methods for the determination of the toxicity of Daphnia magna, and made relev...

AI Technical Summary

Problems solved by technology

If the experimental culture method is adopted for the laboratory conservation of Daphnia magna, the operation is cumbersome, the workload is large, and it is not conducive to the preservation of pure species.