MBDP-NI: Duncan's Bo, Rathlin Island

Place name : Duncan's Bo, Rathlin Island. County : Antrim

Date : 2024-05-19 GPS : 55.31202,-6.25235. Depth : -25.0 to -32.0 m. [ View map ]

Site Description : Tide-swept circalittoral vertical wall with fragile sponge and anthozoan communities, and infralittoral bedrock, exposed to the Atlantic and strong tidal streams with Laminaria hyperborea, Delesseria sanguinea and foliose red algae.

Elephant hide sponge Pachymatisma johnstonia [00:00:29]; Oaten pipe hydroid Tubularia indivisa [00:00:39]; Volcano sponge Haliclona viscosa [00:00:45]; Unknown anemone [00:01:08]; Yellow hedgehog sponge Polymastia boletiformis [00:01:46]; Anemone Phellia gausapata [00:02:07]; Jewel anemones Corynactis viridis [00:02:16]; Plumose anemones Metridium senile [00:02:23]; Sponge Iophon nigricans [00:02:40]; Dead man's fingers soft coral Alcyonium digitatum [00:03:02]; Black tar sponge Dercitus bucklandi [00:04:41]; Yellow staghorn sponge Axinella dissimilis [00:05:44]; Sponge Spongionella pulchella [00:06:39]; Forest kelp Laminaria hyperborea [00:09:34]; Sea beech Delesseria sanguinea [00:10:23]; Pink soft coral Alcyonium hibernicum [00:10:41].

Species list (85 species recorded):

PORIFERA
Clathrina coriacea
Aplysilla sulfurea
Spongionella pulchella
Dysidea fragilis
Pachymatisma johnstonia
Dercitus bucklandi
Axinella damicornis
Axinella dissimilis
Axinella infundibuliformis
Raspailia ramosa
Stelligera montagui
Stelligera stuposa
Polymastia boletiformis
Polymastia penicillus
Sphaerotylus renoufi
Tethya citrina
Iophonopsis nigricans
Hemimycale columella
Hymedesmia jecusculum
Hymedesmia paupertas
Phorbas fictitius
Myxilla incrustans
Desmacella sp.
Desmacella cf. annexa
Halichondria panicea
Haliclona urceolus
Haliclona viscosa
CNIDARIA
Tubularia indivisa
Ectopleura larynx
Coryne eximia
Eudendrium sp.
Neoturris pileata
Halecium halecinum
Sertularia argentea
Kirchenpaueria pinnata
Nemertesia antennina
Obelia sp.
Obelia geniculata
Alcyonium digitatum
Alcyonium hibernicum
Epizoanthus couchii
Parazoanthus anguicomus
Parazoanthus axinellae
Metridium senile
Cylista elegans
Actinothoe sphyrodeta
Phellia gausapata
Corynactis viridis
Caryophyllia smithii
CRUSTACEA
Adna anglica
Galathea strigosa
Cancer pagurus
MOLLUSCA
Simnia patula
Tritonia hombergii
Lomanotus genei
Doto pinnatifida
Acanthodoris pilosa
Polycera faeroensis
Polycera kernowensis
Archidoris pseudoargus
Antiopella cristata
Dendronotus europaeus
Coryphella gracilis
Coryphella lineata
Edmundsella pedata
BRYOZOA
Membranipora membranacea
Bicellariella ciliata
Caberea ellisii
Cellaria fistulosa
ECHINODERMATA
Henricia oculata
Marthasterias glacialis
TUNICATA
Clavelina lepadiformis
Polyclinum aurantium
Aplidium nordmanni
Aplidium pallidum
Aplidium punctum
Lissoclinum weigelei
Ascidia virginea
Polycarpa pomaria
Dendrodoa grossularia
Botryllus renierii
RHODOPHYTA
Corallina officinalis
Kallymenia reniformis
Delesseria sanguinea
CHROMOPHYTA
Laminaria hyperborea

Biotope 1 : Sponges and anemones on vertical circalittoral bedrock.

PORIFERA
Clathrina coriacea R
Aplysilla sulfurea O
Aplysilla sulfurea R
Spongionella pulchella O
Spongionella pulchella R
Dysidea fragilis O
Pachymatisma johnstonia C
Dercitus bucklandi O
Axinella damicornis R
Axinella dissimilis R
Axinella infundibuliformis F
Raspailia ramosa R
Stelligera montagui O
Stelligera stuposa F
Polymastia boletiformis R
Polymastia penicillus R
Sphaerotylus renoufi R
Sphaerotylus renoufi O
Tethya citrina O
Iophonopsis nigricans F
Hemimycale columella O
Hymedesmia jecusculum O
Hymedesmia paupertas R
Hymedesmia paupertas O
Hymedesmia paupertas O
Phorbas fictitius O
Myxilla incrustans O
Desmacella sp. O
Desmacella cf. annexa O
Haliclona urceolus R
Haliclona viscosa C
CNIDARIA
Tubularia indivisa C
Ectopleura larynx C
Coryne eximia O
Eudendrium sp. R
Neoturris pileata R
Halecium halecinum R
Sertularia argentea O
Kirchenpaueria pinnata C
Nemertesia antennina O
Obelia sp. R
Alcyonium digitatum C
Alcyonium hibernicum R
Epizoanthus couchii O
Parazoanthus anguicomus O
Parazoanthus axinellae O
Metridium senile C
Cylista elegans O
Actinothoe sphyrodeta C
Phellia gausapata O
Corynactis viridis C
Caryophyllia smithii A
CRUSTACEA
Adna anglica O
Adna anglica O
Galathea strigosa O
Cancer pagurus O
MOLLUSCA
Simnia patula R
Tritonia hombergii O
Lomanotus genei R
Doto pinnatifida O
Acanthodoris pilosa O
Polycera faeroensis R
Polycera kernowensis O
Archidoris pseudoargus R
Antiopella cristata O
Dendronotus europaeus O
Coryphella gracilis R
Coryphella lineata O
Edmundsella pedata O
BRYOZOA
Bicellariella ciliata O
Caberea ellisii O
Cellaria fistulosa R
ECHINODERMATA
Henricia oculata R
Marthasterias glacialis R
TUNICATA
Clavelina lepadiformis R
Polyclinum aurantium O
Aplidium nordmanni R
Aplidium punctum R
Lissoclinum weigelei O
Ascidia virginea R
Polycarpa pomaria R
Dendrodoa grossularia C
Botryllus renierii R
RHODOPHYTA
Corallina officinalis R
Kallymenia reniformis R
Delesseria sanguinea F

Biotope 2 : Laminaria hyperborea with dense foliose red seaweeds on exposed infralittoral rock.

PORIFERA
Pachymatisma johnstonia F
Hemimycale columella O
Halichondria panicea R
Haliclona viscosa O
CNIDARIA
Tubularia indivisa O
Ectopleura larynx F
Obelia geniculata F
Alcyonium digitatum F
Alcyonium hibernicum O
Actinothoe sphyrodeta F
Corynactis viridis O
Caryophyllia smithii F
BRYOZOA
Membranipora membranacea F
TUNICATA
Aplidium pallidum O
RHODOPHYTA
Delesseria sanguinea C
CHROMOPHYTA
Laminaria hyperborea C

Marine Biodiversity Data Portal - NI