Glossary Element  plankton

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English term plankton
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English definition - floating, drifting or slowly swimming organisms that cannot swim against currents. - floating and drifting organisms that have limited swimming abilities and that are carried largely passively with water currents (opp. nekton). These include bacteria (bacterioplankton), plants and plant-like organisms (phytoplankton) and the animals (zooplankton) that eat them.
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