Algae

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Algae

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Description

A family of chlorophyll-containing organisms that grow in water. Algae range in size from microscopic, single cells (plankton, diatoms, flagella, etc.) to giant, multicellular forms (seaweed, kelp) over 100 feet long. They are abundant in salt and fresh water providing an important source of food for aquatic life. The four main types of algae are classified by their colors: brown, red, green and blue-green. Of the four, blue-green algae is considered detrimental. It grows in stagnant ponds and thrives on phosphorus compounds often making the water toxic to fish and other animals. Additionally, blue-green algae can form stains on damp building walls. The other types of algae are an important commercial resource and are used in the production of food, fertilizers, starch, agar, and carrageenan. They contain numerous minerals, vitamins, proteins, lipids, and essential amino acids. Algicides are used to reduce or kill unwanted algae.

Algae

Synonyms and Related Terms

Spirogyra; alge (Dan., Nor.); Algen (Deut.); alga (Esp.); algues (Fr.) alghe (It.); algen (Ned.); glony (Pol.); algas (Port.); alg (Sven.);

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Sources Checked for Data in Record

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
  • Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998

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