New to me, not noticed this green rockpool weed before. Bit hazy as plant under water.
No interactions present.
Yes, you're right, it might be Cladophora rupestris but it's hard to tell from the photos. I feel it's the same with http://www.ispotnature.org/node/213549 but it has powerful agreements.
I feel that the only way forward, perhaps, is for us to observe more closely and post better photos or a field sketch - whatja think Graham?
Otherwise perhaps take a leaf from JoC's post http://www.ispotnature.org/node/367964 but which only has one agreement, mine!
THREE MARINE PROJECTS
I have returned Graham (and, temporarily at least, agreed). After posting my own and spending the best part of a day assuring myself that I am right, I can see the similarities here.
I still feel that, particularly with seaweeds, that more than one picture is required - your pictures are so similar that few of the distinct features are seen.
I am wandering through all the Cladophora posts just now and adding comment where it is needed. We need to lift Seaweeds - yes?
Even later.. I have returned again to remove my agreement. Nothing vindictive. - it is just not possible, via a single view and light description, to separate this from some of those listed here - http://en.wikipedia.org/wiki/Cladophora though eight of them do not occur in the UK and another 8, that do, are missing from the list. More though, the whole genera has been thoroughly upended in Green Seaweeds of Britain and Ireland ♥
Lat/Lng: 51.3843, 1.3249
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