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Separation purification and large-scale culture method of acartia tonsa

A technology of separation, purification and cultivation method, which is applied in the field of separation, purification and large-scale cultivation of Daphnia spindle, which can solve the problems of inability to improve the cultivation, and achieve the effect of improving the cultivation purity and the structure of the cultivation device is simple

Active Publication Date: 2020-07-10
ZHEJIANG OCEAN UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the problem that the existing water flea breeding methods cannot achieve high-purity cultivation of a single species, and provide a method for separation, purification and large-scale cultivation of water fleas, which can greatly improve the breeding purity of water fleas

Method used

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  • Separation purification and large-scale culture method of acartia tonsa
  • Separation purification and large-scale culture method of acartia tonsa

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Embodiment

[0021] Such as figure 1 , figure 2 In the shown embodiment, a method for separation, purification and large-scale cultivation of Daphnia spindle is carried out according to the following steps:

[0022] Step 1. Acquisition of copepods: In the offshore area, when the water temperature is 20±1°C, at the transition from spring to summer, use a plankton trawl net made of 100-mesh silk screen to harvest copepods at the surface of the 20-60cm water body population as a source of germplasm for screening;

[0023] Step 2. Directional screening of copepods: place the copepods at a temperature of 20±1°C, a salinity of 30°C, and a light intensity of 50-200 Lux and cultivate them for a week, then raise the water temperature to 25±1°C, and the salinity drops. To 20, after a week of cultivation, return to the initial conditions: 20±1°C temperature, 30 salinity, light intensity 50-200 Lux for a week, that is, complete a cycle of directional screening, after completing a cycle of screening...

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Abstract

The invention discloses a separation purification and large-scale culture method of acartia tonsa. The separation purification and large-scale culture method comprises the steps of 1, acquiring copepods; 1, carrying out directional screening on the copepods; and 3, performing enlarged cultivation. By virtue of the method, the breeding purity of the acartia tonsa is increased, and the culture device is simple in structure and is suitable for large-scale breeding.

Description

technical field [0001] The invention relates to a method for cultivating water fleas, in particular to a method for isolating, purifying, and cultivating water fleas on a large scale. Background technique [0002] Copepods are widely distributed in oceans, freshwater or brackish water, and are an important part of zooplankton in waters, as well as an important link in food webs in waters. Because its different species are distributed in different seasons and have high nutritional value, it is the opening bait for the larvae of many economic animals when raising seedlings. Therefore, it is necessary to carry out the research on nutritional enhancement and large-scale cultivation of copepods. Carrying out research on nutrition enhancement and large-scale breeding of copepods can not only provide basic bait for seedling bait research, but also provide scientific basis for the construction and utilization of fish farms based on large-scale breeding of copepods; for example, a k...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/20A01K61/90
CPCA01K61/20A01K61/90
Inventor 周超金扬湖张建设
Owner ZHEJIANG OCEAN UNIV
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