cyanobacteria Learn more about cyanobacteria
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How harmful is the outbreak season of cyanobacteria to aquaculture?
Cyanobacteria, also known as slime algae, is the simplest and most primitive single-celled organism. Cyanobacteria are widely distributed in natural water bodies and have caused serious harm to aquaculture. ...
2019-02-27 -
Excessive reproduction of cyanobacteria in Bengtang should be prevented in midsummer.
The high water temperature and strong light in summer is the high incidence season of cyanobacteria. Once cyanobacteria multiply in large numbers on the surface, the water quality will become thinner. It is not easy for pearl clams to digest cyanobacteria after eating cyanobacteria (cyanobacteria cell wall thickness). Cyanobacteria adhere to the clam's costal gills, affecting respiration. At the same time, after the death of cyanobacteria, the protein decomposes to produce hydroxylamine, which combines with toxic substances such as hydrogen sulfide in water, which can cause Yuzhu poisoning and death. Therefore, the excessive reproduction of cyanobacteria should be strictly controlled and targeted control should be carried out in summer. First, the summer temperature is high and the bottom layer is high.
2019-01-16 -
Aquaculture encounters cyanobacteria outbreak, how to deal with it correctly?
In recent years, the outbreak of cyanobacteria in aquaculture in Guangxi is becoming more and more common, especially at the mouth of freshwater aquaculture pond.
2019-02-28 -
Treatment of cyanobacteria in aquaculture water
People who have been farmed in ponds have more or less experienced excessive reproduction of cyanobacteria, which will not only lead to eutrophication of the water body, but also cause the water body to stink and eventually become a dead pond. So what is the treatment method of cyanobacteria in aquaculture water? one
2020-11-11 Aquaculture water body cyanobacteria treatment method entry crossing pond culture -
Do you know the effects of eight common algae on aquaculture and their control measures?
Common freshwater algae: Cyanophyta, Cyanophyta, Chrysophyta, dinoflagellate, Cryptophyta, Bacillariophyta, Chlorophyta, Xanthophyta. 1. Cyanobacteria Microcystis (postmortem birth.
2019-02-27 -
What are the water quality management techniques in summer river crab culture? How to remedy water quality problems?
As a concentrated area of crab culture in southern China, water quality management is particularly important in the continuous rainstorm and high temperature in summer. What are the water quality management techniques in crab culture in summer? How to remedy water quality problems? The Summer River
2020-11-11 summer river crab culture medium water quality management technology have those -
One article tells you: how does Rudong shed shrimp regulate the algal phase?
One article tells you: how does Rudong shed shrimp regulate the algal phase?
2019-02-20 -
Prawn enteritis causes slow growth How to prevent prawn enteritis
Prawn enteritis causes slow growth How to prevent prawn enteritis
2018-10-27 -
The key to Misgurnus anguillicaudatus Culture-- Water quality problem
The key to Misgurnus anguillicaudatus Culture-- Water quality problem
2018-07-09 -
Water quality requirements and management measures of aquaculture in aquatic ponds
With the development of high-density and intensive water quality aquaculture production, the change frequency of aquaculture water quality is accelerated, resulting in eutrophication of pond water quality.
2019-02-27 -
Application of Bacillus in the Culture of Macrobrachium rosenbergii
Application of Bacillus in the Culture of Macrobrachium rosenbergii
2018-07-25 -
The function of Jishuian
The function of Bishuian is to quickly adjust the PH value of water body, quickly eliminate and alleviate the aquatic biological poisoning and stress reaction caused by toxic algae and toxins caused by the degradation of organic matter in water, hypoxia floating head and so on. Effectively control and improve old green water, cyanobacteria and naked algae
2020-11-09 Clear water safe action clear water safety function yes fast -
Culture technique of Macrobrachium rosenbergii cost Analysis per mu of Macrobrachium rosenbergii
In recent years, the aquaculture industry has been one of the hot topics. Many people are no longer satisfied with the life of going out to work in the city, so they find the right goal and start their own hard work. Shrimp is one of the most common foods in our lives, and it suffers a lot.
2020-11-08 Roche Macrobrachium rosenbergii culture technology culture per mu cost analysis -
How to regulate aquaculture when there is "old water" in the pond
Aquaculture farmers often find that the "old water" is mostly copper green or dark green, more serious yellowing, browning or grayish blue, the water quality is thick, mixed, and the transparency is 20.
2019-02-28 -
Disease and enemy damage of fish and its control methods
Cyanobacteria diseases: cyanobacteria, including Microcystis aeruginosa and Microcystis aeruginosa, generally occur in summer and early autumn, it likes to grow in high temperature and alkaline water, when the pH is 8-9.5, the water temperature is 28 ℃-32 ℃, the reproduction is the fastest. For example, when there are more than 500000 groups in a liter of water, the dissolved oxygen in the water is often insufficient for its needs, and a large number of people will die. After the death of the algae, the protein is easy to decompose and produce toxic substances such as hydroxylamine and hydrogen sulfide, which accumulate in the water, which can not only poison fish, but also cattle and sheep drink this.
2019-01-16 -
How to solve the problem of water pollution prevention and control in agricultural and rural areas?
Recently, cyanobacteria broke out in Dianchi Lake, Yunnan Province, which has become the focus of social attention during the summer tourism season. In recent years, concentrated outbreaks of cyanobacteria in rivers and lakes are common, which highlights the severe situation of water environment in many rural areas of our country. Not long ago, the State Council released "Water"
2016-01-10 Agriculture rural areas water pollution prevention and control how to solve the problem recently Yunnan -
There are nine aspects to be paid attention to in the growing season of fish culture.
1. Prevent hunger. Fish have a large food intake in the peak growing season, so they should be fed more food. Ponds, which mainly raise grass, crucian carp and tilapia, should be mixed with wheat bran, cake, soybean dregs and fresh bait such as tender grass, plant stems and leaves. Under normal circumstances, the daily amount of crude material should be accounted for.
2020-11-08 Fish culture growth peak season need attention nine aspects prevention -
Common abnormal phenomena and treatment methods of cultured Penaeus vannamei
Abnormal phenomenon 1: before releasing seedlings, the pond could not be fertilized after many times of application of fertilizer and water, or the water color was very poor. The cause of ⑴: due to the serious excess of toxic substances such as heavy metal ions, or the proliferation of harmful bacteria and zooplankton in the pond, or the breeding of filamentous algae and green mud moss in the pond.
2020-11-08 Culture South whitening Shrimp Common abnormal phenomenon and treatment -
Control methods of yellow diamondback moth in Magnolia
The main results are as follows: (1) combined with field operations such as pruning in summer (first generation area) and winter and spring (1st generation area), insect cocoons are cut or broken off. (2) cut off the leaves and kill the larvae when the young larvae are damaged by clusters. (3) spraying 20% dimethrin suspension 20% chlorpromazine 3 suspension or spraying Bt emulsion cyanobacteria in the whole larval stage. (4) when necessary, spray insecticides such as fenitrothion in the larval stage.
2019-01-15 -
Planting technique of pericarp
The scientific name of local vegetables is Candida albicans. It is a kind of nitrogen-fixing cyanobacteria, generally wild, but because of its rich nutrition, there are also a lot of artificial cultivation of soil vegetables. Today, I would like to share with you the planting technology of soil vegetables. First, select alfalfa over 10 years old.
2020-11-08 Land vegetable planting technology land science name ordinary