26 Apr 2008

Neighbouring rocks,

very different communities on them:
The reddish sandstones seem to offer a better substrate for seaweed and encrusting algae to get established..
The grey rocks (I'm taking geology for idiots to the beach from now on) are bare of algae and seaweed (enough of an algae film must grow to allow the limpets to make a living) and just home to limpets and barnacles.

No comments: