What Is a Clean Float?

Floaters are plankton. Among the organisms in the waters such as oceans, lakes, and rivers, those who have no ability to move at all or are very weak, so they cannot move against the current, but live on the surface of the water. Such organisms are collectively called Plankton.

Float

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Floaters are plankton. Among the organisms in the waters such as oceans, lakes, and rivers, those who have no ability to move at all or are very weak, so they cannot move against the current, but live on the surface of the water. Such organisms are collectively called Plankton.

Chinese scientific name

Float

Latin scientific name

planktos

nickname

Plankton

Genus

microorganism

Plankton: Among the organisms in the waters such as oceans, lakes, and rivers, those who have no ability to move at all, or are very weak, cannot move against the current, but live on the surface of the water. Collectively called plankton. This is an ecological group defined according to the type of its lifestyle. Rather than the concept of division of biological species.

Float

Although the term plankton was proposed by V. Hensen (1887) to refer to all organisms that float in the water, it later refers to organisms that live in water, that is, planktonic communities. Correspondingly, the term "plankton" refers specifically to each plankton. In addition, in response to the term Plankton, EH Haecker (1891) proposed the term "benthos" (benthos, Nek-ton), and C. Schrter and O. Kirchner (1896) The term floating plant (pleuston), E. Naumann (1917) proposed the term floating creature, and JMPeres (1961) proposed the term pelagos. These terms are used to distinguish aquatic organisms Ecological group. The definition of plankton mainly refers to their passive movement. In fact, it can also be said to mean aquatic organisms collected by plankton nets or buckets. Many people also directly adopt the original planton. Plankton is diverse, especially animals, and almost all animal groups can be seen. Among the plants, most are diatoms, flagellates, and cyanobacteria, and there are many bacteria attached to suspended matter. Plankton is generally small, but there are jellyfish with an umbrella length of 2 meters. From a morphological point of view, in order to adapt to plankton, plankton often has complex protrusions on the body surface, or a large amount of water, oil droplets, fats and gases are stored in the body. In phytoplankton, some also adjust the amount of gas in the body. And for vertical movement. In water, especially in large lakes and oceans, photosynthesis occurs almost exclusively in the true light layer. The annual photosynthetic amount of plankton with photosynthesis is estimated to reach 25 billion tons (E. Steeman Nielsen. 1960) or 20 billion tons (JHRyther, 1969). Compared with zooplankton, the number of existing phytoplankton is about 20 times in the tropical oceans and about 10 times in the cold oceans. Generally, the proportion is small in lakes, and sometimes in lakes with poor nutrition or humus. Less than zooplankton. Small zooplankton are valued as part of the foundation of the food chain in the water. At the same time, for the ocean, their large-scale vertical movement has the effect of transporting organic matter to the lower layer, which has attracted people's attention.

Refers to the biota that passively floats in the water layer under the action of water currents, including some small protozoa and algae, but also certain crustaceans, molluscs and larvae of certain animals. They have no or only weak swimming ability. Can be divided into phytoplankton and zooplankton. According to individual size, plankton can be divided into six types: giant plankton, greater than 1 cm, such as jellyfish; large plankton, 5 to 10 mm, such as large copepods, krill; medium plankton, 1 to 5 mm , Such as small jellyfish, copepods; small plankton, 50 microns to 1 mm, such as diatoms, cyanobacteria; microplankton, 5 to 50 microns, such as dinoflagellates, gold algae; ultra-microplankton, less than 5 microns, Such as bacteria.

Diatoms and dinoflagellates are the dominant species of continental shelf producers. Their productivity is the basis of other biological productivity of marine ecosystems. Some dinoflagellates can cause red tides. Copepods and krill in zooplankton are permanent plankton, and coelenterate plankton larvae, snake-tailed long-arm larvae, and barnacle larvae are temporary plankton. Krill is one of the main bait for fish, with the largest number of krill in the Antarctic ocean. Zooplankton is a consumer. Foraminifera and radiolarian shells are an important group of paleontological fossils in marine sediments. According to them, the geological age and sedimentary facies of the formation can be determined, and they can also be used to find sedimentary minerals and oil. Plankton is the basis for the productivity of other organisms in the waters. Due to their wide distribution and strong fertility, they may become the main food source of the future world.

Some plankton are good for the environment and can break down the algae of decaying organisms.