Simple method for inducing, preserving and germinating winter eggs of moina macrocopa and purifying water

Abstract

The invention discloses a simple method for inducing, preserving and germinating winter eggs of moina macrocopa and purifying water, which comprises the following steps: step 1, feeding adult moina macrocopa with lack of food: gradually decreasing the feeding amount from 100% at ordinary times to 25% so as to induce the winter eggs; step 2, adding original culture water to 75-100% of the volume, sealing with a cover, and storing in a refrigerator at the temperature of 4 DEG C; and step 3, taking out from the refrigerator, directly adding tap water into a culture container as a hatching solution, keeping the temperature at 23-28 DEG C, standing and culturing in a room with illumination, and standing and hatching for 2-3 days. The hatched young moina macrocopa is put into a net cage with the water to be purified after the moina macrocopa is subjected to graded amplification culture, and water purifying is achieved. According to the simple method for inducing, preserving and germinating winter eggs of moina macrocopa and purifying water, generation of the winter eggs can be rapidly induced, low-cost long-term preservation and rapid germination can be achieved, and commercial production of moina macrocopa and wide application of moina macrocopa in the aspect of water purifying are achieved; the method is applied to the water ecological restoration industry and the aquatic breeding industry.

Description

technical field [0001] The invention relates to the field of water ecological restoration, in particular to a simple method for inducing, preserving and germinating the winter eggs of the clear water insect and using the clear water insect to remove green algae (clear water) in the water body. Background technique [0002] With the impact of human beings on the natural environment, the degree of eutrophication in water bodies is getting higher and higher, resulting in the proliferation of micro planktonic algae in water bodies, especially the outbreak of medium-sized green algae and microcystic cyanobacteria in water bodies in summer and autumn (commonly known as "water algae"). "Hua"), after the death of the algae, it will release toxins, anoxic and stench in the water body, a large number of aquatic animals will die, and the water body environment will be extremely deteriorated, which will greatly reduce the ornamental and utilization value of the water body. [0003] In t...

AI Technical Summary

Problems solved by technology

"Water bloom" has a strong seasonality. If only the parthenogenesis conservation method is used in the non-"water bloom" season, it will inevitably lead to spending a lot of manpower, material resources and time, and when the cultivation conditions change suddenly (such as Sudden changes in temperature, lack of bait, and deterioration of water quality), often lead to failure of cultivation, leading to "extinction"

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