MBDP-NI: Doon Bay, Rathlin Island

Place name : Doon Bay, Rathlin Island. County : Antrim

Date : 2025-07-27 GPS : 55.27171,-6.17653. Depth : -15.0 to -30.0 m. [ View map ]

Site Description : Boulders covered in hydroids, and some exposed bedrock, on mixed sediment.

Sea oak, Halidrys siliquosa, [00:00:16]; Common lobster, Homarus gammarus, [00:01:24]; Encrusting bryozoan, Electra pilosa, [00:02:12]; Eyelash worm, Myxicola polychroma, [00:02:31]; Brown seaweed, Desmarestia dudresnayi, [00:03:39]; Brown seaweed, Dictyopteris polypodioides, [00:05:53]; Hornwrack, Flustra foliacea, [00:06:10]; Tassel weed, Carpomitra costata, [00:06:20]; Nudibranch, Acanthodoris pilosa, [00:06:27]; Rare hydroid, Lytocarpia myriophyllum, [00:06:51]; Solenogaster, Rhopalomenia aglaopheniae, [00:07:16]; Hydroid, Diphasia margareta, [00:07:58]

Species list (28 species recorded):

Biotope 1 : Circalittoral mixed sediment

CNIDARIA
Diphasia margareta O
Nemertesia antennina O
Lytocarpia myriophyllum R
Actinothoe sphyrodeta O
ANNELIDA
Myxicola polychroma R
CRUSTACEA
Homarus gammarus R
Pagurus bernhardus R
Munida rugosa R
MOLLUSCA
Rhopalomenia aglaopheniae R
Acanthodoris pilosa R
BRYOZOA
Plagioecia patina R
Membranipora membranacea O
Electra pilosa O
Flustra foliacea R
Crisularia plumosa R
Cellaria sp. O
Parasmittina trispinosa R
RHODOPHYTA
Dilsea carnosa R
Metacallophyllis laciniata F
Heterosiphonia plumosa C
Delesseria sanguinea O
Nitophyllum punctatum R
CHROMOPHYTA
Dictyota dichotoma R
Carpomitra costata R
Desmarestia dresnayi O
Saccharina latissima O
Halidrys siliquosa O
CHLOROPHYTA
Ulva sp. R

Marine Biodiversity Data Portal - NI