Temperature resistance domestication method for daphnia and method for conducting ecological repair on water body through daphnia

Abstract

The invention aims at providing a temperature resistance domestication method for daphnia and a method for conducting ecological repair on a water body through daphnia. The method includes the steps that A, daphnia is placed in a breeding solution to be bred for a set period of time, and the temperature of the breeding solution is changed into the preset temperature according to the same tendency; B, the step A is repeatedly executed till the temperature of the breeding solution reaches the preset limiting temperature, beneficial microorganisms are put in, and domestication of daphnia is completed. By putting daphnia domesticated according to the method in the water body rich in toxic substances and algae, the water body can be purified, the underwater ecological balance can be repaired, and the ecological self-purification of the water body can be achieved.

Description

Technical field [0001] The invention belongs to the field of environmental protection and biotechnology, and particularly relates to a temperature-resistant domestication method of water flea and a method for ecological restoration of nutrient-rich water bodies by using water flea. Background technique [0002] The algae in the water erupted because of various human production activities, which discharged nutrients such as nitrogen and phosphorus into rivers, lakes and other water bodies. When the lake’s ecological self-purification ability was destroyed, nutrients such as nitrogen and phosphorus continued to be in the water body. It accumulates in large quantities, which results in the flooding of single-celled algae, especially cyanobacteria (mainly Microcystis aeruginosa), and serious water pollution. Most cyanobacteria cells have a well-developed layer of algin, and the outside is surrounded by a thick layer of polysaccharides. These algins and polysaccharides can hardly be d...

AI Technical Summary

Problems solved by technology

However, the water body of existing wild lakes is rich in toxic substances and harmful substances such as toxic blue-green algae, and the temperature is high in summer. Unaccustomed water fleas ingest algae and algae and The ability to survive is obviously reduced, and it is difficult to survive stably for a long time, which greatly limits the application of daphnia in water ecological restoration.