Masses of this red alga seen on Laminaria hyperborea fronds, as well as on rocks exposed on a low spring tide in Scotland.
No interactions present.
The species which typically has epiphytes like this is L. hyperborea. Your post http://www.ispot.org.uk/node/290159
shows typical L. digitata which has a smooth stipe. There is a smooth, probably L. digitata stipe in this post, bottom left, too.
Hi Jo, Yes I'm sure you are right, thanks, and I have now corrected the kelp ID in the description above. Once I got to now my kelps better having photographed flexible stemmed L. digitata in Cornwall later in the year, I did ID the stiff-stemmed kelps I'd photographed in Scotland as hyperborea e.g. in this post: http://www.ispot.org.uk/node/290150
I was never sure if the smooth stiped fronds in Scotland were just young hyperborea or digitata mixed in with them.
Nick Upton, naturalist and photographer.
A good question. I looked at Marlin for an answer, but I am none the wiser. They have differently-shaped holdfasts when mature, but when young?Anyone got any ideas?
L. digitata http://www.marlin.ac.uk/speciesfullreview.php?speciesID=3613
L. hyperborea http://www.marlin.ac.uk/speciesfullreview.php?speciesID=3614
Over three years later, in my 4th year of Marine Algae, I produced two Observations which might go some way to answering this, though there are so very few agreements!
I am backtracing all Laminaria posts
THREE MARINE PROJECTS
Lat/Lng: 56.2551, -2.6297
OS grid ref: NO610071