A simple method for inducing, preserving, germination and clearing water of the eggs of Daphnia spinosa

Abstract

The invention discloses a simple method for inducing, preserving and germinating winter eggs of Qingshui worms and clearing water thereof. Winter eggs; step 2, add the original culture water to 75% to 100% of the capacity, cover and store in a refrigerator at 4°C; step 3, take it out from the refrigerator, and directly add tap water to the culture container as a hatching solution, The temperature is kept between 23-28°C, cultured statically in a room with light, and hatched statically for 2-3 days. After the hatched juvenile daphnia are graded and expanded, they are put into the cages waiting for clear water to achieve clear water. The simple method for inducing, preserving and germinating winter eggs of Qingshui Worm and its clear water method of the present invention can quickly induce the production of winter eggs, store them for a long time at low cost, and rapidly germinate, and realize the commercial production of Qingshui Worm and its wide application in Qingshui; service In the water ecological restoration industry and aquatic nursery 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 winter eggs of Nadia spinosa and removing green algae (clear water) in a water body by using the Nadia spinosa. 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 the prior art, ther...

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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