
Appearance
Acrosiphonia filaments have hooks that cause the branches to become tangled. This gives the algae its matted appearance. This tangeled look is the cause for it to be described as rope-like.
Habitat
The species is found on rock in the mid to low intertidal in protected to semi-exposed habitats in spring and early summer.References:
Some text fragments are auto parsed from Wikipedia.
https://depts.washington.edu/fhl/mb/Acrosiphonia_Travis/morphology.htmlhttp://www.seaweedsofalaska.com/species.asp?SeaweedID=212