Fig 1
DESCRIPTION: Growing up to 16cm in length this bushy golden brown seaweed is best recognised by its growing position (upper shore), channel-like gutters along the fronds (hence the English name) and the swollen tips which a uneven and knobbly. This common seaweed is in fact an hermaphrodite and has both male and female reproductive parts on the same plant. It can also survive for up to 8 days out of water. DISTRIBUTION: Found on coasts in around the Atlantic and up to the North Sea. HABITAT: On rocky shores usually at high levels and a good indicator of the high water mark. BEST TIME TO SEE: All year round.

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