What kind of algae are the blooms happening?

Blooms can be plankton.

Caused by planktonic algae, there are several main groups of planktonic algae: cyanobacteria.

Diatoms, green algae.

Cryptoalgae, euglena, golden algae, dinoflagellates, among which the phylum Cyanobacteria is the most common and common.

The common genera that form blooms in the phylum Cyanobacteria are: Microcystis, Anabaena, Fascicularia, Pseudocylindrium, Arthrococcus, and Floating Silk Algae (originally classified as Tremor algae).

List the common cyanobacterial bloom species in our domestic lakes:

ababaena .circinalis rabenh.Anabaena curly.

Anabaena bloom.

aphanizomenon flos-aquae (l.Ralfs Bloom Bunch.

microcystis areuginosa kutz.Microcystis aeruginosa.

Komarek) Wyeth.

Microcysts. m.Ichthyoblabe kuetz pest microcystis.

m. incerta lemm.Adventitious microcysts.

m. marginata (menegh.) kütz.Microcystis marginalis.

a. br.)lemm.Green microcysts.

Microcystis blooms.

Nodularia spumigena mertens.

oscillatoria agardhii gom.Albert albertus.

by Dr. Chunlizhou.

First of all, it is necessary to distinguish the nature of the water body, whether it belongs to the reservoir water body or the river water body?

Secondly, the occurrence of blooms is closely related to the surrounding environmental conditions, and it is necessary to understand the source, and the causes of different sources are different for the algae that cause blooms.

Empirical data can then be used to show that usually reservoirs are prone to cyanobacteria-green algae blooms, and river bodies are prone to diatom-green algae blooms.

Summary. Hello, happy to answer your <>

The five types of bloom microalgae are 1Poisonous algae 2Chlorella 3

Golden algae 4Diatom 5Ciliates, microcysts and trembling algae are the main algal species that occur in Taihu Lake Species description :

The plant mass is black-green or turquoise, which is a collection of many groups and is visible to the naked eye, and is a common planktonic cyanobacteria found in various water bodies.

What are the five types of bloom microalgae.

Hello, happy to answer your <>

The five types of bloom microalgae are 1Poisonous algae 2Chlorella 3

Golden algae 4Diatom 5Ciliates, microcysts and tremors are the main algal blooms in Lake Taihu Species description:

The plant mass is black-green or turquoise, which is formed by the collection of many groups and is visible to the naked eye, and is a common planktonic cyanobacteria in various water bodies.

Extended content: Poisonous algae are microalgae that produce toxic algal toxins, such as cyanobacteria and saprophytes. These algae produce toxins that pose a threat to aquatic life and human health.

Chlorella is a type of green pontoontoon-state migratory algae, such as chlorella, zebra spp., etc. Chlorella are generally the most common and widespread type of bloom microalgae in lakes and rivers.

Nasa is one of the microalgae.

Yes, yes.

The explosive bloom of cyanobacteria is a direct consequence of eutrophication of water bodies. Water eutrophication is divided into natural eutrophication and anthropogenic eutrophication. Natural eutrophication refers to the natural enrichment of nutrients in lakes, which requires thousands or even 10,000 years of evolution.

It is said that Zhuge Liang's army drank the "green river water" that the soldiers said, and was poisoned and defeated in southern Sichuan. Relevant studies believe that this "green river water" is the river water caused by natural eutrophication, and the current cyanobacteria outbreak is mainly caused by anthropogenic eutrophication.

With the increasing development and utilization of environmental resources, the development of industry and the high concentration of urban population, a large number of industrial wastewater and domestic sewage containing polluting substances are discharged into the water body without proper treatment, which increases the concentration of ozone-depleting substances such as ammonia nitrogen, phosphorus and organic pollutants in the water body, and increases the load of nutrients in the water. In order to improve the yield of crops, the application of chemical fertilizers has increased year by year, and after the erosion and infiltration of rainwater, more nutrients are lost and enter the water, which also increases the load of nutrients in the water; In aquaculture, in order to achieve high fishery yields, some areas use the method of feeding feed, which has also become the main channel for water bodies to receive nutrients such as nitrogen and phosphorus. Therefore, Liu Guangzhao believes that it is none other than us humans who release demons.

Taking Dianchi Lake as an example, as a semi-enclosed shallow lake, man-made destruction has accelerated it into the aging stage, the lake surface has shrunk by 1 4, the bottom of the lake has risen by 60 cm, the replacement of water quality is very slow, and the self-purification ability of the lake is very poor. Every year, Dianchi Lake receives sewage discharged from more than 1,900 industrial and mining enterprises and more than 1.6 million urban population, including 5 billion tons of organic pollutants, 332 tons of heavy metals, more than 8,900 tons of total nitrogen, more than 2,100 tons of total phosphorus, and more than 390,000 tons of COD, resulting in serious pollution and severe eutrophication in the lake. Coupled with the climate temperature and light conditions of Kunming are suitable for the breeding and reproduction of cyanobacteria, from 1985 to the present, Dianchi Lake has an abnormal outbreak of blue-hall bridge algae every year, a large number of cyanobacteria float on the water surface, it looks like a piece of green paint, resulting in the turbidity and fishy smell of the water body, a large reduction of aquatic organisms, and the average chlorophyll content in the water is as high as 2600 mg cubic meters.

Dianchi Lake has not only lost its original aesthetic value, but also become a source of pollution that threatens people's health.

a. "Bloom" is a natural ecological phenomenon in freshwater, caused by algae, mainly cyanobacteria, a correct;

b. The water limb penitential sponge belongs to algae plants, lives in ponds or ditches, has a simple structure, and has no differentiation of rhizomes and leaves, b is wrong;

c. Chlamydomonas is an algae plant, and the tung is in fresh water before life, c is wrong;

d. Algae belong to algae plants, a kind of algae, and there are many in the water

"Water blooms" are a natural ecological phenomenon in freshwater. The vast majority of blooms are caused by algae alone, such as cyanobacteria (strictly speaking, they should be called cyanobacteria), green algae, diatoms, etc.; Some blooms are also caused by zooplankton, dinoflagellates. When a "bloom" occurs, a strand of water is blue or green.

This kind of "water bloom" phenomenon that exists in nature has been recorded in the ancient history of our country.

After eutrophication in freshwater, "blooms" appear frequently, and the area spreads year by year, and the duration is extended year by year. Taihu Lake, Yunnan Land Digging Pond, Chaohu Lake, and Hongze Lake all have "blooms", and even flowing rivers, such as the largest tributary of the Yangtze River, the Hankou section of the lower reaches of the Han River, also have "blooms".The biggest hazards caused by "blooms" in freshwater are:

Drinking water sources are threatened, algal toxins affect human health through the food chain, and MCRST, a secondary metabolite of cyanobacteria "blooms", can damage the liver and have a cancer-promoting effect, directly threatening human health and survival. In addition, the filtration device of the waterworks was filled with algae "blooms", which affected the landscape and caused an unpleasant odor. Therefore, every time a bloom occurs, it will bring huge losses or disasters to humans and the natural world.

When algae grow in abundance, these algae release a toxin, lake indigo, which is toxic to fish. After a large number of algae die, in the process of decay and decomposition, a large amount of dissolved oxygen in the water is also consumed, which makes the water body seriously foul-smelling. The main reason for the occurrence of the bloom phenomenon is that a large number of chemical fertilizers are applied along the waters, and a large amount of domestic sewage and industrial wastewater are discharged into rivers and lakes, resulting in an increase in the content of nitrogen, phosphorus and potassium in rivers and lakes.

One of the most important factors contributing to the occurrence of blooms is eutrophication of water bodies.

Water bloom, also known as water bloom, water-flower usually refers to freshwater ponds, rivers, lakes, reservoirs and other water bodies are polluted, nitrogen, phosphorus and other nutrients increase significantly, resulting in water bodies to reach eutrophication or severe eutrophication, under certain temperature, light and other conditions, some algae occur explosive reproduction, causing obvious water color changes, and the formation of thin or thick green or other colors of algae floating debris phenomenon on the water surface.

Algae that cause bloom outbreaks include: cyanobacteria, green algae, diatoms, etc.

When the Taihu Lake bloom erupted, the number of cyanobacteria was the largest, followed by cryptoalgae, diatoms, and green algae.

Cyanobacteria are single-celled prokaryotes, also known as blue-green algae, cyanobacteria, but they are not bacteria and are not green algae. Cyanobacteria are a general term for a group of algae, which is marked by unicellular cells and no nucleus. Common cyanobacteria include Cyanoccoccus (Cyanoccoccus), Candida, Trembling Algae, Fat Choopoe, etc.

In summer, the number of cyanobacteria is the most chromococcus, followed by anaanaea, and the number of trembling algae is also more, some common but small quantities are cyanofibrous algae, microcystis, cryptococcus, cystococcus, planophysis, anaea, etc.

It is caused by the accumulation of green algae, mainly sponges. It is caused by eutrophication of the water body and the high content of medium elements in the water.

Yes, if the water body contains a lot of nitrogen and phosphorus, it is easy to eutrophication, causing a large-scale outbreak of cyanobacteria, which gathers together and forms a bloom. It is a disaster, because the fish and shrimp cannot be eaten, and it must be solved by manual fishing or chemical and biological methods.

It is recommended to use the rice castle developed by Zhengzhou Master Science and Technology to degrade algae, sponges and mosses with biological agents, and are harmless to fish and shrimp.

Cyanobacterial blooms mostly occur from June to September in summer, which has obvious seasonality and is affected by temperature, sunlight and nutrients. The temperature is above 20; The pH value of the water body is high, and the illumination is high.

Under strong and long-term conditions, cyanobacteria form air sacs to the surface and multiply rapidly, resulting in the formation of cyanobacterial blooms. In some nutrient-rich water bodies, many fish are not eaten because they are difficult to digest. Some bluebench algae bloom in large numbers during the summer months and form a blue-green layer on the surface of the water.

While the foul-smelling foam, called "blooms", and large-scale blue-green algae outbreaks, known as "green tides" (and red tides that occur in the oceans.

correspondence). The green tide causes the deterioration of water quality, and in severe cases, the oxygen in the water is depleted, resulting in the death of fish, the proliferation of cyanobacteria, and the deterioration of ventilation, light and hypoxia in the water. This leads to the growth and reproduction of plankton in the water, which hinders the photosynthesis of algae.

It reduces the living space of fish, and the filamentous algae and planktonic algae in the pond cannot synthesize the nutrients they need, resulting in death.