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Method for regulating seedling culture water quality for apostichopus japonicus selenka and controlling reproduction of harmful plankton

A plankton and water quality technology, applied in chemical instruments and methods, seawater treatment, water/sewage multi-stage treatment, etc., can solve the problems of juvenile ginseng injury, environmental pollution, drug residues, etc., achieve no environmental pollution, and improve the survival rate. , The effect of preventing the increase of pH

Pending Publication Date: 2019-09-13
LUDONG UNIVERSITY +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The previous preventive measures were to use drugs (such as crystal trichlorfon, oxytetracycline) for disinfection treatment, but this method is easy to cause pollution to the environment, has certain damage to juvenile ginseng, and even has drug residues

Method used

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  • Method for regulating seedling culture water quality for apostichopus japonicus selenka and controlling reproduction of harmful plankton
  • Method for regulating seedling culture water quality for apostichopus japonicus selenka and controlling reproduction of harmful plankton

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Embodiment 1

[0020] A method for adjusting the water quality of sea cucumber seedlings and controlling the reproduction of predator plankton, the steps include:

[0021] (1) To draw natural seawater into the sedimentation tank for precipitation, where the sedimentation tank is 2-3 meters deep and the pond area is more than 20 mu;

[0022] (2) The sedimented seawater is filtered through a sand filter; when the outdoor water temperature is lower than 16°C, the sand filter influent is selected at noon; when the outdoor water temperature is higher than 23°C, the sand filter influent is selected at night ; Through time point control, the purpose of heating or cooling is realized, which is convenient for energy saving;

[0023] (3) The filtered seawater enters the underground dark shed system for dark treatment to obtain the seawater for nursery and seedling preservation; the dark treatment is specifically: the filtered seawater is still in the underground dark shed for at least 24 hours. Prevent the ...

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Abstract

The invention relates to a method for regulating seedling culture water quality for apostichopus japonicus selenka and controlling reproduction of harmful plankton. The method comprises steps as follows: drawing of natural seawater and precipitation in a settling pond; filtration by a sand filter; construction of an underground dark shed and dark treatment of aquaculture water. On one hand, reproduction of algae can be prevented and the pH of seawater for aquaculture can be adjusted by artificially controlling the illumination environment of a water reservoir; reproduction of plankton such ascopepods can be reduced; on the other hand, the water temperature can be adjusted in an energy-saving manner. By means of the method, chemical reagents are not required, no pollution is caused to theenvironment, the purposes of adjusting the pH of aquaculture water and controlling reproduction of harmful organisms can be achieved, and finally, the bait utilization rate of the apostichopus japonicus selenka and the survival rate of seedling culture and protection are increased.

Description

Technical field [0001] The invention relates to a method for regulating the water quality of sea cucumber seedlings and controlling the reproduction of predator plankton, belonging to the field of aquaculture. Background technique [0002] Sea cucumber (Apostichopus japonicus, Selenka), also known as imitation sea cucumber, is a valuable tonic. It ranks first in the "Sea Eight Treasures". It is rich in nutrients and contains a variety of biologically active ingredients beneficial to the human body. Sea cucumber aquaculture has developed rapidly along the coast, and the breeding area has been expanding year by year. The seed market is in short supply, so seed production has very large business opportunities. However, many nursery companies are affected by water pH and copepods in the process of nursery and seedling preservation of sea cucumbers, resulting in unstable yields and even failure of nursery and seedling preservation. [0003] The suitable pH range of sea cucumbers is usu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/30A01K63/00A01K63/04C02F9/02C02F103/08
CPCA01K63/003A01K63/04A01K63/045A01K61/30C02F1/001C02F1/52C02F2103/08
Inventor 杨建敏王卫军解秀春张同华刘兆存
Owner LUDONG UNIVERSITY
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