Laminaria digitata - Kelp

Laminaria digitata - Kelp

Observation - Laminaria digitata - Kelp - UK and Ireland. Description: The second of three Laminaria observations. One picture is NEVER enough! One should look at ALL the pictures to feel a bit more secure with separation from its close lookalike Laminaria hyperborea. The both grow together and are often intertwined at th

Edit - added more annotations see commentsThe second of three Laminaria observations.
One picture is NEVER enough!
One should look at ALL the pictures to feel a bit more secure with separation from its close lookalike Laminaria hyperborea.
They both grow together and are often intertwined at the strandline. Generally speaking L.digitata is smooth, a little shiny and oval in section. It will not, normally, have many epiphytes.
The most secure way to separate the two big ones - each sometimes over 2 metres long, is to slice through the stipe. One can see from the pictures they have quite different lozenges (my word) and only one is very sticky. The other Kelps can also be identifed by slicing - more later then. All you need then is a knife - Oh and a camera because we'd like to see results here.
See also http://www.ispotnature.org/node/874627