What is the important role that red tide algae plays in the biosphere

Red tides, also known as red tides or harmful algal blooms, are generally a phenomenon in which marine microalgae, bacteria, and protozoa overproliferate or accumulate in seawater, causing seawater to change color.

Red tides are not always red, and when they occur, the sea water can turn orange, yellow, green, and brown in addition to red. Red tide is a natural ecological phenomenon, it has been recorded in the Bible, a considerable part of the red tide is harmless, they are left to fend for themselves, however, in recent years, the frequent occurrence and scale of red tide have destroyed fishery resources and marine aquaculture industry, and red tide toxins also seriously threaten the safety of human life. Some red tide algae can produce toxins, which accumulate in shellfish and fish, poisoning when eaten by humans, and can lead to death in severe cases; There are also some red tide algae that do not pose a threat to humans, but can produce toxins that harm marine life such as fish; Other red tide algae, although non-toxic, can cause clogging or mechanical damage to the gills of fish, and may also suffocate fish due to large oxygen consumption when they die.

In recent years, red tide has become more and more frequent, which is first due to people's increased awareness of red tide and more attention to this marine environmental problem, and then the continuous development of world shipping has promoted the distribution of red tide algae species on a global scale, and the main reason is that with the economic development, coastal eutrophication has intensified, which provides conditions for the occurrence of red tide. There are many kinds of organisms that cause red tides, among which marine planktonic microalgae are the main organisms that cause red tides, and more than 260 of the more than 4,000 marine planktonic microalgae can form red tides, of which more than 70 can produce toxins.

Red tide algae can carry out photosynthesis and act as the first trophic level of fixed solar energy.

At the same time, oxygen is produced, which provides the necessary conditions for aquatic life to survive.

Red tide algae can also enhance the self-purification effect of water.

A single-celled assemblage plant with biflagella, indefinite in shape. Often distributed in fresh water and seawater, some dinoflagellates are harmful to their activities, and their survival will carry some special smells. Some can form "red tides" and "algae flowers", so that the local sea water is red, yellow or brown.

Red tides are not necessarily red, mainly including blooms in freshwater systems, general red tides in the ocean, brown tides (suppressing the consumption of goldenrod algae), green tides (mosses), etc., which have been newly defined in recent years. Depending on the species and number of organisms that cause red tides, the water sometimes takes on different colors such as yellow, green, and brown.

The main hazards of red tide are the following four points:

1. A large number of red tide organisms accumulate in the gills of fish, causing fish to suffocate and die due to lack of oxygen;

2. After the death of red tide organisms, the algae consume a large amount of dissolved oxygen in the water during the decomposition process, resulting in the death of fish and other marine organisms due to lack of oxygen, which causes serious damage to the ecosystem of the ocean's main group.

3. Fish swallowing a large amount of toxic algae can cause fish death;

Fourth, some algae can secrete toxins, which pose a serious threat to the health and life safety of consumers through the food chain.

Dinoflagellates are red tide creatures, and red tides are not always red. The different species of organisms that cause red tides and the number of ridges will cause different colors of the water body, such as red or brick-red red formed by meso-stingworms and noctilucent algae;

The red tide formed by eudinoflagellates and dinoflagellates is green; The red tide formed by the short naked pure loose dinoflagellates is yellow; Some diatoms form brown red tides. In addition, some red tide organisms sometimes do not cause discoloration of seawater, such as knee gutter algae, eugleniflagellated, pear dinoflagellates, etc., which sometimes do not cause any special color of seawater.

Causes of red tides.

Red tides can generally be divided into two categories: toxic red tides and non-toxic red tides. Toxic red tides are red tides formed by organisms that contain certain toxins or secrete toxins. Non-toxic red tide is formed by red tide organisms that do not contain toxins and do not secrete toxins.

The occurrence of red tide is the result of the combined action of various natural factors, such as weather factors such as light and wind, hydrological factors such as sea temperature, salinity, flow velocity, flow direction, and biochemical factors such as nutrients, trace elements and red tide organisms themselves must be taken into account. At the same time, eutrophication of water bodies caused by human activities is also one of the reasons for the frequent occurrence of red tides in recent years.

The above content refers to People's Daily Online - Red Tide Science Popularization.

Summary. Hello, red tide algae belongs to the biome production value layer, and the biome refers to the interconnected and mutually influencing group composed of all animals, plants, and microorganisms in a specific space. The biome is maintained by three relationships, namely the vegetative relationship (eating and being eaten), the habitat relationship (plants providing shelter) and the supporting relationship (animals scattering plant seeds).

Hello, red tide algae belongs to the biome production value layer, and the biome refers to the interconnected and mutually influencing group of all animals, plants, and microorganisms in a specific space. The biome is supported by three types of relationships: the vegetative relationship (eating and being eaten), the adult-aged or environmental relationship (the plant providing shelter) and the supporting relationship (the animal scattering plant seeds).

Algae are autotrophic organisms, and if you give a little sunlight, you can live, classmate, the answer has been sent, and you have to give the teacher a thumbs up and a reply to 1 oh pat chong. Let the teacher know that you have received the answer, if you don't understand, you can continue to consult Thank you for your thanks, I wish you a happy family, a happy life, and all the best, thank you again.

No. Red tide is an ecological anomaly phenomenon in which some microalgae, protozoa or bacteria in the ocean multiply or accumulate explosively to a certain level under certain environmental conditions, causing discoloration of the water body or harming other organisms in the ocean. Chlorella is a single-celled plant that lives in fresh water and contains a high amount of chlorophyll in silver balance, which is able to produce large amounts of oxygen and nutrients through photosynthesis and is only a few microns in diameter.

Therefore green algae are not red tide organisms. <

No. Red tide is an ecological anomaly phenomenon in which some microalgae, protozoa or bacteria in the ocean multiply or accumulate explosively to a certain level under certain environmental conditions, causing discoloration of the water body or harming other organisms in the ocean. Chlorella is a single-celled plant that lives in fresh water, contains a high amount of chlorophyll, and is able to produce a large amount of oxygen and nutrients through photosynthesis, with a diameter of only a few microscobecular meters, which is not visible to the naked eye, and can only be seen under a high-powered microscope, such a small plant has been discovered by humans because of the nutrients it produces.

It is now included in the food ranks. Therefore, green oak is not a red tide organism.

Seaweed is a red tide organism, but green algae is not a red tide organism.

"Red tide" is an anomaly in marine ecosystems. It is caused by the explosive proliferation of red tide algae in the seaweed family under specific environmental conditions. Seaweeds are a large family, and with the exception of some macroalgae, many of them are very tiny plants, some of which are single-celled organisms.

Depending on the species and number of organisms that cause red tides, seaweed is sometimes colored yellow, green, and brown, so seaweed is a red tide organism.

Chlorella, on the other hand, is a single-celled plant that lives in fresh water and contains a high amount of chlorophyll, which can produce a large amount of oxygen and nutrients through photosynthesis, and is only a few microns in diameter. Therefore green algae are not red tide organisms.

1. Green algae are not red tide organisms. Red tide is an ecological anomaly phenomenon in which some microalgae, protozoa or quietly suppressed bacteria in the ocean explode and move or aggregate jujube limbs to a certain level under certain environmental conditions, causing discoloration of the water body or endangering other organisms in the ocean.

2. Chlorella is a single-celled plant that lives in fresh water, contains a high amount of chlorophyll, and can produce a large amount of oxygen and nutrients through photosynthesis, with a diameter of only a few microns. Therefore green algae are not red tide organisms.

Seaweed is a red tide creature. Red tide is an ecological phenomenon, caused by the explosive proliferation of red tide algae in the seaweed family under specific environmental conditions, in the ocean, there are more than 330 kinds of plankton that can form red tide, and more than 150 species are distributed in China's coastal waters. For more information about "Is Seaweed Ant a Red Tide Creature", please read on.

1. Plankton: Red tide is an abnormal phenomenon that occurs directly or indirectly due to the sudden proliferation of plankton, and there are more than 150 kinds of plankton that can lead to the formation of red tide in China's coastal waters.

2. Human activities: A large amount of industrial and agricultural wastewater and domestic sewage generated by human activities are discharged into the ocean, which is one of the factors that induce red tide.

3. Seawater eutrophication: a large amount of urban industrial wastewater and domestic sewage discharged into the sea, in which nutrients are aggregated, resulting in seawater eutrophication, which is the material basis for the occurrence of Chixiaofan burial tide.

4. Seawater temperature: changes in hydrometeorological and seawater physical and chemical factors promote the occurrence of red tides, and the pollution of marine aquaculture is also the cause of red sedan tides.