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Pelteobogrus fulvidraco fish culturing water body eutrophication early warning method and application of same

A technology of aquaculture water and eutrophication, applied in the fields of application, fish farming, animal husbandry, etc., can solve the problems of water quality impact, low aquaculture output, no monitoring and early warning methods for aquaculture water of yellow catfish, etc., and achieve good guidance The effect of action

Active Publication Date: 2016-04-06
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main reason for the low production of aquaculture is the impact of water quality. At present, there are no studies and reports on the monitoring and early warning methods for the aquaculture water body of yellow catfish

Method used

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  • Pelteobogrus fulvidraco fish culturing water body eutrophication early warning method and application of same
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  • Pelteobogrus fulvidraco fish culturing water body eutrophication early warning method and application of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Example 1 Research on early warning mechanism of eutrophication in yellow catfish culture water

[0064] 1. Experimental materials

[0065] (1) Yellow catfish fry: Yellow catfish fry were purchased from the star breeding demonstration base of Guangdong Haid Group in Datong Village, Xiqiao Town, Foshan City, Guangdong Province. There are a total of 7,200 fish, weighing 0.6-1.2g, healthy and without injury. sick. According to the requirements of the test setup, they were randomly assigned to each experimental pond, and each cement pond was stocked with 1200 tails. Another batch of fry was provided by the breeding demonstration base of Guangzhou Jinyang Aquaculture Co., Ltd. in Guangdong Province. There are a total of 1,200 fish fry, with an average weight of 50g / fish and a strong physique. According to the relevant requirements of the test, they were randomly assigned to each cement pond, and 200 tails were stocked in each cement pond.

[0066] Before the experiment, t...

Embodiment 2

[0119] Example 2 Research on early warning model of eutrophication in yellow catfish culture water

[0120] Based on the research in Example 1, the early warning mechanism of eutrophication in the aquaculture water of the yellow catfish was analyzed and studied.

[0121] 1. Establishment of early warning levels

[0122] (1) Screening of early warning factors for water quality

[0123] Pond water quality management is a necessary condition for efficient and healthy cultivation of yellow catfish. The outbreak of fish diseases is closely related to the main water quality factors, and these water quality factors are intricately related to each other. Usually, changes in one variable cause changes in other variables , the correlation coefficient is an indicator to measure the degree of correlation between two variables.

[0124] If X represents the first variable and Y represents the second variable, they are respectively X=(x1, x2, x3..., xn,); Y=(yl, y2, y3..., yn,), correlatio...

Embodiment 3

[0157] Example 3 Research on the method of eutrophication in yellow catfish culture water

[0158] On the basis of the early-warning method studied above, the present invention explores the warning method of the yellow catfish culture water body, and finds that the symbiotic culture technology of the yellow catfish and the net-cage vegetable cultivation has a good effect.

[0159] 1. Dispatch method

[0160] The numbers of ponds used for breeding in the experimental group are S1, S2, and S3, and the experimental group uses net cages to cultivate water spinach to treat water bodies, that is, uses net cages to cultivate water spinach on the breeding ponds. Plant 35 kg of water spinach with a height of about 20 cm and a stem diameter of 0.5 to 0.8 cm at intervals of 3 cm. The planting quantity of each net cage is the same to ensure the survival rate and replant dead seedlings in time. The specifications of the net cage used are: length × width × height = 1.0m × 1.0m × 0.7m. The ...

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Abstract

The invention discloses a Pelteobogrus fulvidraco fish culturing water body eutrophication early warning method and an application of the same / Total phosphorus, nitrite nitrogen, chemical oxygen demand, water transparency, nitrate nitrogen, total ammonia nitrogen, total nitrogen, dissolved oxygen and leaf green (a) work as early warning factors; correlation between each early warning factor and death toll of the Pelteobogrus fulvidraco fishes, and tolerance limit to each early warning factor by the Pelteobogrus fulvidraco fishes are analyzed; and early warning grades are divided into no-warning, light-warning, middle-warning, heavy-warning and super-warning. On the basis of the early warning method provided in the invention, water quality conditions of the Pelteobogrus fulvidraco fish culturing pond can be monitored, predicted, forecast and managed in time in an effective way and future development trends can be predicted, so a warning action on water quality evolutionary trend, direction, speed and results can be achieved; remedial actions can be taken in time, so great guiding effect is produced for practical culturing work; besides, according to the standards and guides of the early warning method, a specific warning-eliminating method for Pelteobogrus fulvidraco fish culturing water body can be explored; and a purpose for culturing benefit improvement can be realized.

Description

technical field [0001] The invention belongs to the technical field of aquaculture. More specifically, it relates to a method for early warning of eutrophication in a cultured water body of yellow catfish and its application. Background technique [0002] The aquaculture industry occupies a pivotal position in my country's national economy, and its development is closely related to water and environmental quality. However, small and medium-sized farms in some areas blindly increase the production of aquatic products, put a large amount of artificial bait, antibiotics, drugs, etc. into the aquaculture water body, and discharge high-nitrogen and high-phosphorus wastewater, causing serious excess nitrogen and phosphorus in rivers, lakes and other waters, and water eutrophication It destroys the balance of the ecological environment of the water body and the stability and diversity of aquatic organisms. In recent years, due to the discharge of a large amount of industrial wast...

Claims

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Application Information

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IPC IPC(8): A01K63/04
CPCA01K63/04
Inventor 刘文生林齐鹏孙亮亮王涛
Owner SOUTH CHINA AGRI UNIV
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