Species composition and biodiversity

For ECR in the UK % Frequency Faithfulness Typical abundance
Pachymatisma johnstonia

Occasional

Cliona celata

Occasional

Tubularia indivisa

Frequent

Nemertesia antennina

Occasional

Alcyonium digitatum

Frequent

Urticina felina

Occasional

Sagartia elegans

Occasional

Corynactis viridis

Frequent

Caryophyllia smithii

Frequent

Pomatoceros triqueter

Frequent

Balanus crenatus

Frequent

Cancer pagurus

Occasional

Calliostoma zizyphinum

Occasional

Parasmittina trispinosa

Frequent

Antedon bifida

Occasional

Securiflustra securifrons

Frequent

Asterias rubens

Occasional

Echinus esculentus

Occasional

Clavelina lepadiformis

Occasional

Corallinaceae indet. (Crusts)

Frequent

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