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Filamentous Algae

Distribution : Mediterranean

In 1843, Anna Atkins began turning seaweed into photographs without using a camera. She arranged specimens on light-sensitive paper and exposed the paper to light, leaving pale silhouettes against an intense blue background. Filamentous algae particularly interested her because their fine details were difficult to reproduce by drawing. Her book appeared while photography was still in its infancy.

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Habitat of Filamentous Algae Habitat
Coralligenous habitat, Detrital bottom, Rocky habitat
Depth range of Filamentous Algae Depth
5-40 m
Biological group of Filamentous Algae Group
Ecological role of Filamentous Algae Role
Primary producer

WHAT DOES IT LOOK LIKE?

“Filamentous algae” describes a form: fine, flexible threads that occur separately or gather into tufts. These filaments make up the thallus, the algal body, without leaves like those of a marine flowering plant.

Colours range from green to brown, sometimes with yellow shades. Dense tufts may join into mats. Several species share this appearance, so the general outline alone cannot establish a species name.

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Filamentous Algae

Watch this species in filmed dives

Other species — Brown alga

Forked Ribbon Weed Peacock's tail Sweet-smelling seaweed Common sargassum Rodriguez’s kelp

Same habitat and depth

Coralligenous habitat species Detrital seabed species Rocky seabed species

Same ecological role and depth

Producer species

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What is this species’ ecological role?

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DEPTH HABITAT PHYLA ECOLOGICAL ROLE