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Ecological prevention and control method for excessive multiplication of large algae in stichopus japonicas aquaculture pond

A technology for over-breeding and ecological prevention and control, applied in fish farming, application, climate change adaptation, etc., can solve the problems of sea cucumber and pond water ecological environment hazards, affecting the growth and reproduction of beneficial microalgae, and labor-intensive manual harvesting. To achieve the effect of improving the prevention and control effect, improving the ecological environment of the pool water, and reducing the intensity of photosynthesis

Inactive Publication Date: 2018-10-16
烟台市海洋经济研究院(烟台市渔业技术推广站、烟台市海洋捕捞增殖管理站)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that chemical algaecides cause harm to the sea cucumber and the ecological environment of pool water in the existing prevention and control methods, the labor intensity of manual fishing is high, and the prevention and control effect is poor. The problem of algae growth and reproduction, the poor control effect of simply stocking algae-eating animals and the competition with sea cucumbers for nutrition and habitat space, provide an ecological prevention and control method, which can improve the ecological environment of ponds, improve the quality of cultured sea cucumbers, and improve the quality of sea cucumbers. Large algae prevention and control effect, promote the growth of sea cucumber, reduce labor intensity, and reduce production costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1. With an area of ​​2hm 2 Take a sea cucumber breeding pond with an average water depth of 100 cm as an example.

[0033] An ecological method for preventing and controlling the excessive propagation of macroalgae in sea cucumber breeding ponds includes the following steps:

[0034] 1. Fertilize water in advance

[0035] (1) Apply organic fertilizer: apply 1500kg of fermented chicken manure half a month before the sea cucumber seedlings are stocked in spring. The method is: dig an area of ​​about 1m around the bottom of the pool every 5m 2 , A shallow pit with a depth of about 30cm, separate chicken manure into the pit, cover it with pond mud, and then pour water into the pond;

[0036] (2) Fertilizer water agent: When adding water just after the beginning of spring, apply algae to the pool to stabilize. The specific dosage and usage refer to the instructions.

[0037] Keep the transparency of the pool water at 60~80cm before stocking the seedlings.

[0038] 2. Fertiliz...

Embodiment 2

[0045] Example 2: With an area of ​​3hm 2 Take a sea cucumber breeding pond with an average water depth of 100 cm as an example.

[0046] An ecological method for preventing and controlling the excessive propagation of macroalgae in sea cucumber breeding ponds includes the following steps:

[0047] 1. Fertilize water in advance

[0048] (1) Apply organic fertilizer: 20 days before stocking sea cucumber seedlings in spring, apply 2500kg of fermented pig manure. The method is: dig an area of ​​about 2m every 10m along the bottom of the pool 2 , A shallow pit with a depth of 50cm, put organic fertilizer into the pit, cover it with pond mud, and then pour water into the pond.

[0049] (2) Fertilizer aqua: When adding water for the first time after the beginning of spring, apply a commercially available fertilizer and aqua agent to the pond, such as a fertilizer and aquapeptide based on diatoms. Refer to the instructions for specific usage and dosage.

[0050] Keep the transparency of the p...

Embodiment 3

[0059] Example 3: With an area of ​​2hm 2 , Take a sea cucumber breeding pond with an average depth of 150cm as an example

[0060] 1. Fertilize water in advance

[0061] (1) Apply organic fertilizer: Half a month before stocking sea cucumber seedlings in spring, apply 2500kg of fermented cow dung. The method is: dig an area of ​​about 1.5m around the bottom of the pool every 5m 2 , A shallow pit with a depth of 40cm, separate the chicken manure into the pit, cover it with pond mud, and then pour water into the pond.

[0062] The purpose of burying the organic fertilizer in the pit is to avoid directly splashing into the water and polluting the water environment of the pool, and the fertilizer effect lasts for a long time.

[0063] (2) Fertilizer water agent: When adding water at the beginning, apply a commercially available fertilizer water agent to the pond, such as fertilizer water peptide, for specific usage and dosage, refer to the instructions.

[0064] Keep the transparency of t...

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Abstract

The invention relates to an ecological prevention and control method for excessive multiplication of large algae in a stichopus japonicas aquaculture pond. The ecological prevention and control methodaims at solving the problem that chemical algicide harms stichopus japonicas and the ecological environment of pond water, the problems that the labor intensity of manual fishing is large, and the prevention and control effect is poor, the problems that the control effect of a shading method is poor, and growth and reproduction of beneficial microalgae are influenced, and the problems that if pure algivore is stocked, the prevention and control effect is poor, and the algivore fights for nutrition and inhabiting space with the stichopus japonicas. The ecological prevention and control methodcomprises the steps of applying fertilizer and water in advance, applying fertilizer and water in the breeding process, applying a microbial preparation and stocking the algivore. By means of the ecological prevention and control method, the number of animals and plants in the pond reaches dynamic balance, while excessive multiplication of the large algae is effectively prevented, the ecological environment of the pond water is improved, growth and development of the stichopus japonicas are promoted, and the quality of the stichopus japonicas is improved.

Description

Technical field [0001] The invention relates to an ecological prevention and control method for the excessive propagation of algae, in particular to an ecological prevention and control method for the excessive propagation of macroalgae in sea cucumber breeding ponds, and belongs to the field of environmental protection. Background technique [0002] In the process of stichopus pond culture, keeping moderate macroalgae in the pond can provide oxygen for the respiration of stichopus through photosynthesis; shading and cooling can also be carried out in the summer high temperature season, which is conducive to the safety of stichopus in summer; it can also absorb The excess nutrients in the water can prevent the eutrophication of the pool water. However, we often encounter serious hazards caused by the excessive propagation of macroalgae, including: inhibiting the reproduction of beneficial microalgae such as benthic diatoms in the water, resulting in a lack of natural bait for sea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/30A01K61/13
CPCA01K61/13A01K61/30Y02A40/81
Inventor 刘锡胤胡丽萍周文江陈相堂刘蓬姜黎明张玉恒王玉本
Owner 烟台市海洋经济研究院(烟台市渔业技术推广站、烟台市海洋捕捞增殖管理站)
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