Friday, December 11, 2009

Seaweed

Seaweed is a loose colloquial term encompassing macroscopic, multicellular, benthic marine algae.[1] The term includes some members of the red, brown and green algae. Seaweeds can also be classified by use (as food, medicine, fertilizer, industrial, etc.).

Photo of seaweed with small swollen areas at the end of each frond

Ascophyllum nodosum exposed to the sun in Nova Scotia, Canada
Photo of detached seaweed frond lying on sand

Dead Man's Fingers (Codium fragile) off Massachusetts coast in the United States
Photo of seaweed with the tip floating at the surface

The top of a kelp forest in Otago, New Zealand
For other uses, see Seaweed (disambiguation).
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