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Spiral wrack

Fucus spiralis


Fucus spiralis is olive brown in colour and similar to Fucus vesiculosus and Fucus serratus. It grows to about 30 cms long and branches somewhat irregularly dichotomous and is attached, generally to rock, by a discoid holdfast. The flattened blade has a distinct mid-rib and is usually spirally twisted without a serrated edge, as are to be seen in Fucus serratus, and it does not show air-vesicles, as Fucus vesiculosus.


Rocks at the beach

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arlanda 6 years ago

Thanks Mark

Mark Ridgway
Mark Ridgway 6 years ago

Plant kingdom?

arlanda 6 years ago

Thanks Lisa, that's great!

LisaPowers 6 years ago

Congrats arlanda! This spotting was featured as one of our Project Noah Fun Facts!

Project Noah Fun Fact: The term seaweed is an informal term used to describe macroscopic, multicellular marine algae. These algae inhabit ocean waters that are close to the shore and receive plenty of sunlight. These plant-like organisms are not plants at all, but they do have the ability to photosynthesize. The modern study of marine and freshwater algae is called either phycology or algology. Seaweed is often used by humans as food, medicine, fertilizer, fuel and dyes.

Spiral wrack algae spotted by Project Noah member arlanda:

Spotted by

El Franco, Principado de Asturias, Spain

Spotted on Aug 27, 2013
Submitted on Nov 29, 2013

Spotted for Mission

Related Spottings

Rockweed Bladder Wrack Bladderwrack Bladder wrack or rock weed

Nearby Spottings

Spiral wrack Black Redstart, Colirrojo tizón Codium Furbellow


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