I reckon there’s been a noticeable increase in the amount of seaweed growing on the rocks between HWM and LWM this spring. This is in west Cornwall, both granite and the other rocks. I don’t know what sort of seaweed it is, it’s green and forms small clumps with leaves (?) maybe 5cm long.
I wonder what’s caused it (winter storms? Global warming?) and whether it will go away of its own accord. It’s a real pain trying to remove even small amounts from crucial holds. What eats seaweed?
In reply to toad: You could be right increased nitrogen runoff from the land ( farms) due to precipitation ( it has been a wet winter) can cause algae to grow more prolific, eutrophication is the correct term. seaweed is algae .
Is the seaweed light green almost transparent?
Hehe,
I studied ecology / biology also, I was a terrible student , spent more time climbing and recovering from nights/weekends out than anything else.