page_title: Golden algae
hierarchical_section_title: Golden algae
caption_attribution_description: This file was uploaded with Commonist. English: Dinobryon divergens, belongs to the Chrysophyceae (Golden Algae) Deutsch: Dinobryon divergens, eine Goldbraune Alge (Chrysophyceae)
context_page_description: The Chrysophyceae are a large group of algae found mostly in freshwater.
  Golden algae is also a common term. It refers to a species, Prymnesium parvum, which kills fish in large numbers.
  The main type of chrysophyte cell has two specialized flagella. The active, "feathered" flagellum points toward the moving direction. The smooth passive flagellum, points in the opposite direction.
  An important characteristic used to identify members of the Chrysophyceae is the presence of a siliceous cyst that is formed internally.
  However, some members of the group are amoeboid, and some are sessile. Unfortunately, every expert who has studied this group has come up with a different classification. It seems that their ancestor did not do photosynthesis, but later on groups separately evolved their own methods of using sunlight.
context_section_description: The Chrysophyceae (golden-brown algae or golden algae) are a large group of algae found mostly in freshwater. 
  Golden algae is also a common term. It refers to a  species, Prymnesium parvum, which kills fish in large numbers (causes 'fish kills').
  The main type of chrysophyte cell has two specialized flagella. The active, "feathered"  flagellum points toward the moving direction. The smooth passive flagellum, points in the opposite direction.
  An important characteristic used to identify members of the  Chrysophyceae is the presence of a siliceous cyst that is formed internally.
  However, some members of the group are amoeboid (move like amoeba), and some are sessile. Unfortunately, every expert who has studied this group has come up with a different classification. It seems that their ancestor did not do photosynthesis, but later on groups separately evolved their own methods of using sunlight.
caption: A golden alga: Dinobryon divergens 
  It is a tree-like sessile form with cells in the cup-like covers
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