Serrated Wrack seaweed, Fucus serratus, growing on coastal rocks on the shore of the Moray Firth.
Serrated wrack is a brown seaweed found in the intertidal zone on rocky coasts in northern Europe.
The name "serrated wrack" derives from the saw-toothed shape of the edges of the fronds.
Seaweed is a marine algae, sometimes found floating in the sea, sometimes found attached to coastal rocks.

Location: Highland Region, Scotland.