Distribution of algal species epiphytic on L. hyperborea (Sherkin Island, Co. Cork, Ireland; D. Birkett, unpublished data)

Depth of kelp holdfast, m.

Dominant species distribution pattern (from top of stipe down) on average plants, with length of stipe section colonised

1

L. digitata 10 cm;

Palmaria palmata 50 cm

2

L .digitata 15 cm,

P. palmata 50 cm

3

L. digitata 25 cm,

Phycodrys rubens 5 cm,

Cryptopleura ramosum 5 cm,

P. palmata 20 cm

4

C. ramosum 5 cm,

Membranoptera alata, 5 cm,

P. rubens 30 cm,

P. palmata 30 cm

5

M. alata 5 cm,

C. ramosum 5 cm,

P. palmata 5 cm,

P. rubens 75 cm.

6

P. palmata 5 cm,

M. alata 5 cm,

C. ramosum 10 cm,

P. rubens 50 cm.

7

Nitophyllum sp. 5 cm,

L. hyperborea 10 cm,

Dictyota dichotoma 5 cm,

Callophyllis laciniata 5 cm,

C. ramosum 20 cm,

P. palmata 25 cm,

P. rubens 30 cm.

References