Filter Feeder

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filter feeder

[′fil·tər ‚fēd·ər]
(invertebrate zoology)
A microphagous organism that uses complex filtering mechanisms to trap particles suspended in water.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Filter Feeder


an aquatic animal that feeds on minute planktonic organisms or suspended particles, which it filters from the water. Active filter feeders, including many crustaceans, tunicates, and whalebone whales, draw water through external or internal filtration organs by moving their cilia or extremities or contracting their muscles. Passive filter feeders make use of water currents. For example, sea lillies have branches with numerous feathery outgrowths, which they spread in the direction of the current, creating a complex, immobile filtration network. Filter feeders often combine suspension feeding with deposit feeding. Filter feeders include many marine and freshwater species. Some species, for example, marine mussels, play an important role in purifying sea water of slime in coastal regions.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The study argues that large filter feeders, many of which are
This new study confirms the risk microplastics represent for marine filter feeders. Scientists believe polluting and toxic substances that hitchhike on microplastics can alter marine animals' biological processes, negatively impacting an already very low reproductive rate.
Investigation of these processes would make it possible to clarify effective food supply and consumption systems for benthic filter feeders and help to determine where to put new mussel bed culture systems.
He says researchers are working to develop a selective piscicide that only affects larger filter feeders like silver and bighead carp.
Paddlefish: Another filter feeder, these prehistoric fish are unmistakable.
But the moon--part light, part master--summons its shore and leaves the sand pockmarked by filter feeders, sets the gulls aloft.
Filter feeders were highest during Post M (20%), and the abundance declined during Pre M (17%) and Mon (7%).
He said at the time: "Cockles are filter feeders and so can assimilate sewage and cause Ecoli and other infections.
To the Editor: Bivalve mollusks (shellfish), such as mussels and oysters, are filter feeders; they concentrate microorganisms of human and animal origin (up to 100x) from the surrounding environment.
It is common for whales to pick up debris near urban areas because they are filter feeders * THURSDAY APRIL 26: A construction engineer walking between panels at a solar farm at Wheal Jane, near Truro, Cornwall, as David Cameron said he passionately believed the growth of renewable energy was vital to the UK''s future.
"Oysters are filter feeders, which means they concentrate any contaminants in the water," explains William E.
Voegel explained that clams are bottom-dwelling filter feeders, obtaining nutrients by filtering the water around them.