Marine Biodiversity Data Portal - NI
Duncan's Bo, Rathlin Island
Survey number: 782 Event number: 20250518/02 Date: 2025-05-18 GPS: 55.30745,-6.26745. Depth: -25.0 to -15.0 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.
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Species list (74 species recorded):
PORIFERA
Clathrina lacunosa
Aplysilla sulfurea
Dysidea fragilis
Pachymatisma johnstonia
Dercitus bucklandi
Axinella damicornis
Axinella infundibuliformis
Eurypon sp.
Raspailia hispida
Raspailia ramosa
Stelligera stuposa
Polymastia boletiformis
Tethya citrina
Cliona celata
Iophon hyndmani
Iophonopsis nigricans
Hemimycale columella
Hymedesmia paupertas
Hymedesmia rathlinia
Phorbas fictitius
Mycale rotalis
Myxilla fimbriata
Myxilla incrustans
Desmacella cf. annexa
Halichondria panicea
Haliclona urceolus
Haliclona viscosa
CNIDARIA
Tubularia indivisa
Ectopleura larynx
Eudendrium sp.
Halecium halecinum
Sertularella gayi
Nemertesia antennina
Nemertesia ramosa
Aglaophenia tubulifera
Obelia geniculata
Alcyonium digitatum
Epizoanthus couchii
Parazoanthus anguicomus
Parazoanthus axinellae
Cylista elegans
Actinothoe sphyrodeta
Phellia gausapata
Corynactis viridis
Caryophyllia smithii
CRUSTACEA
Adna anglica
Cancer pagurus
Necora puber
MOLLUSCA
Calliostoma zizyphinum
Polycera faeroensis
Polycera kernowensis
Antiopella cristata
Fjordia lineata
Edmundsella pedata
BRYOZOA
Crisia eburnea
Plagioecia patina
Caberea boryi
ECHINODERMATA
Henricia oculata
TUNICATA
Clavelina lepadiformis
Polyclinum aurantium
Aplidium nordmanni
Aplidium punctum
Didemnidae sp.
Lissoclinum perforatum
Corella parallelogramma
Ascidia mentula
Polycarpa pomaria
PISCES
Centrolabrus exoletus
Labrus bergylta
RHODOPHYTA
Plocamium lyngbyanum
Heterosiphonia plumosa
Delesseria sanguinea
Phycodrys rubens
CHROMOPHYTA
Laminaria hyperborea
Clathrina lacunosa
Aplysilla sulfurea
Dysidea fragilis
Pachymatisma johnstonia
Dercitus bucklandi
Axinella damicornis
Axinella infundibuliformis
Eurypon sp.
Raspailia hispida
Raspailia ramosa
Stelligera stuposa
Polymastia boletiformis
Tethya citrina
Cliona celata
Iophon hyndmani
Iophonopsis nigricans
Hemimycale columella
Hymedesmia paupertas
Hymedesmia rathlinia
Phorbas fictitius
Mycale rotalis
Myxilla fimbriata
Myxilla incrustans
Desmacella cf. annexa
Halichondria panicea
Haliclona urceolus
Haliclona viscosa
CNIDARIA
Tubularia indivisa
Ectopleura larynx
Eudendrium sp.
Halecium halecinum
Sertularella gayi
Nemertesia antennina
Nemertesia ramosa
Aglaophenia tubulifera
Obelia geniculata
Alcyonium digitatum
Epizoanthus couchii
Parazoanthus anguicomus
Parazoanthus axinellae
Cylista elegans
Actinothoe sphyrodeta
Phellia gausapata
Corynactis viridis
Caryophyllia smithii
CRUSTACEA
Adna anglica
Cancer pagurus
Necora puber
MOLLUSCA
Calliostoma zizyphinum
Polycera faeroensis
Polycera kernowensis
Antiopella cristata
Fjordia lineata
Edmundsella pedata
BRYOZOA
Crisia eburnea
Plagioecia patina
Caberea boryi
ECHINODERMATA
Henricia oculata
TUNICATA
Clavelina lepadiformis
Polyclinum aurantium
Aplidium nordmanni
Aplidium punctum
Didemnidae sp.
Lissoclinum perforatum
Corella parallelogramma
Ascidia mentula
Polycarpa pomaria
PISCES
Centrolabrus exoletus
Labrus bergylta
RHODOPHYTA
Plocamium lyngbyanum
Heterosiphonia plumosa
Delesseria sanguinea
Phycodrys rubens
CHROMOPHYTA
Laminaria hyperborea
Biotope 1 : Laminaria hyperborea with dense foliose red seaweeds on exposed infralittoral rock. IR.HIR.KFaR.LhypR (A3.115)
PORIFERA
Halichondria panicea R
CNIDARIA
Tubularia indivisa O
Obelia geniculata C
Alcyonium digitatum R
Actinothoe sphyrodeta F
RHODOPHYTA
Plocamium lyngbyanum R
Heterosiphonia plumosa R
Delesseria sanguinea C
Phycodrys rubens A
CHROMOPHYTA
Laminaria hyperborea A
Halichondria panicea R
CNIDARIA
Tubularia indivisa O
Obelia geniculata C
Alcyonium digitatum R
Actinothoe sphyrodeta F
RHODOPHYTA
Plocamium lyngbyanum R
Heterosiphonia plumosa R
Delesseria sanguinea C
Phycodrys rubens A
CHROMOPHYTA
Laminaria hyperborea A
Biotope 2 : Sponges and anemones on vertical circalittoral bedrock. CR.HCR.XFa.SpAnVt (EUNIS A4.139)
PORIFERA
Clathrina lacunosa R
Aplysilla sulfurea R
Aplysilla sulfurea R
Dysidea fragilis O
Pachymatisma johnstonia O
Dercitus bucklandi R
Axinella damicornis R
Axinella infundibuliformis O
Eurypon sp. R
Raspailia hispida O
Raspailia ramosa O
Stelligera stuposa O
Polymastia boletiformis O
Tethya citrina O
Cliona celata R
Iophon hyndmani O
Iophonopsis nigricans O
Hemimycale columella F
Hymedesmia paupertas C
Hymedesmia rathlinia R
Phorbas fictitius R
Mycale rotalis R
Myxilla fimbriata O
Myxilla incrustans R
Desmacella cf. annexa O
Haliclona urceolus F
Haliclona viscosa F
CNIDARIA
Tubularia indivisa A
Ectopleura larynx C
Eudendrium sp. R
Halecium halecinum O
Sertularella gayi R
Nemertesia antennina F
Nemertesia ramosa O
Aglaophenia tubulifera O
Alcyonium digitatum C
Epizoanthus couchii O
Parazoanthus anguicomus F
Parazoanthus axinellae C
Cylista elegans O
Actinothoe sphyrodeta C
Phellia gausapata P
Corynactis viridis A
Caryophyllia smithii A
CRUSTACEA
Adna anglica F
Cancer pagurus R
Necora puber R
MOLLUSCA
Calliostoma zizyphinum R
Polycera faeroensis R
Polycera kernowensis R
Antiopella cristata R
Fjordia lineata R
Edmundsella pedata R
BRYOZOA
Crisia eburnea C
Plagioecia patina O
Caberea boryi F
ECHINODERMATA
Henricia oculata R
TUNICATA
Clavelina lepadiformis R
Polyclinum aurantium R
Aplidium nordmanni F
Aplidium punctum O
Didemnidae sp. O
Lissoclinum perforatum R
Corella parallelogramma R
Ascidia mentula R
Polycarpa pomaria O
PISCES
Centrolabrus exoletus R
Labrus bergylta R
RHODOPHYTA
Delesseria sanguinea O
Clathrina lacunosa R
Aplysilla sulfurea R
Aplysilla sulfurea R
Dysidea fragilis O
Pachymatisma johnstonia O
Dercitus bucklandi R
Axinella damicornis R
Axinella infundibuliformis O
Eurypon sp. R
Raspailia hispida O
Raspailia ramosa O
Stelligera stuposa O
Polymastia boletiformis O
Tethya citrina O
Cliona celata R
Iophon hyndmani O
Iophonopsis nigricans O
Hemimycale columella F
Hymedesmia paupertas C
Hymedesmia rathlinia R
Phorbas fictitius R
Mycale rotalis R
Myxilla fimbriata O
Myxilla incrustans R
Desmacella cf. annexa O
Haliclona urceolus F
Haliclona viscosa F
CNIDARIA
Tubularia indivisa A
Ectopleura larynx C
Eudendrium sp. R
Halecium halecinum O
Sertularella gayi R
Nemertesia antennina F
Nemertesia ramosa O
Aglaophenia tubulifera O
Alcyonium digitatum C
Epizoanthus couchii O
Parazoanthus anguicomus F
Parazoanthus axinellae C
Cylista elegans O
Actinothoe sphyrodeta C
Phellia gausapata P
Corynactis viridis A
Caryophyllia smithii A
CRUSTACEA
Adna anglica F
Cancer pagurus R
Necora puber R
MOLLUSCA
Calliostoma zizyphinum R
Polycera faeroensis R
Polycera kernowensis R
Antiopella cristata R
Fjordia lineata R
Edmundsella pedata R
BRYOZOA
Crisia eburnea C
Plagioecia patina O
Caberea boryi F
ECHINODERMATA
Henricia oculata R
TUNICATA
Clavelina lepadiformis R
Polyclinum aurantium R
Aplidium nordmanni F
Aplidium punctum O
Didemnidae sp. O
Lissoclinum perforatum R
Corella parallelogramma R
Ascidia mentula R
Polycarpa pomaria O
PISCES
Centrolabrus exoletus R
Labrus bergylta R
RHODOPHYTA
Delesseria sanguinea O
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