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Bacterioplankton, planktonic bacteria - these are microorganisms suspended in water. Many of them move actively, but their locomotives are not sufficient to resist the currents. Bacterioplankton is usually smaller than 1 μm, but some autotrophic bacteria are larger.

Bacterioplankton performs various trophic functions:

In the distribution of organic matter, plankton is also involved in fungi that can partially act as destructors and partially parasites. Bibliography

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