Bladder wrack seaweed (Fucus vesiculosus)

Bladder wrack seaweed (Fucus vesiculosus)

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Credit: MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY

Caption: Bladder wrack seaweed, Fucus vesiculosus, on a limestone wave-cut platform on a beach near Kilve, North Somerset. The name of the seaweed derives from the paired air bladders visible on either side of the midrib of the fronds. The air bladders keep the seaweed blade buoyant and near the surface of the water when the tide is in, so that photosynthesis can take place. Seaweed is a marine algae, some species of which float freely in the sea & some, as here, are attached to the shore. It was used as a treatment for goitre ( an iodine deficiency ) as it is rich in iodine.

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Keywords: air bladder, alga, algae, algal, biology, bladder fucus, bladder wrack, bladderwrack, botany, buoyancy, dyers fucus, fucus, fucus vesiculosus, inter-tidal, marine, marine algae, nature, plant, rock wrack, seaweed, vesicles

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