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Brown algae
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Images & Videos
knotted wrack Forest of giant kelp
Bright green algae blooms distort the surface of water.
bladder wrack bladder wrack Close-up of Sargassum algae with golden-brown fronds and numerous round, yellow air bladders clustered among the leaves. Sargassum representative algae
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Brown algae: Media

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Videos

What Causes Algae Blooms?
Algae blooms can make lakes and oceans look like abstract paintings.
Video: Encyclopædia Britannica, Inc.

Images

knotted wrack
Knotted wrack (Ascophyllum nodosum).
© Awe Inspiring Images/Fotolia
Forest of giant kelp
Giant kelp (Macrocystis pyrifera) near Catalina Island, California. Giant...
© hotshotsworldwide/Fotolia
bladder wrack
Bladder wrack (Fucus vesiculosus) is a species of brown algae that grows...
Photos.com/Thinkstock
bladder wrack
Bladder wrack (Fucus vesiculosus), a brown alga common along the northern...
© RVC5Pogod/stock.adobe.com
Sargassum
The brown algae known as Sargassum is sometimes called sea holly because...
© Damsea/Shutterstock.com
Sargassum
Sargassum.
National Oceanic and Atmospheric Administration
representative algae
Representative algae.
Encyclopædia Britannica, Inc.
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