Marine Biodiversity Data Portal - NI
Ruecallan Archway, Rathlin Island
Survey number: 780 Event number: 20240626/02 Date: 2024-06-26 GPS: 55.30753,-6.26778. Depth: -20.0 to -30.0 m. [ View map ]
Site Description: Vertical limestone wall with archway on Rathlin's north wall. Upper circalittoral bedrock with Delesseria sanguinea, Alcyonium digitatum and Pachymatisma johnstonia.
Species list (45 species recorded):
PORIFERA
Leucosolenia sp.
Sycon ciliatum
Dysidea fragilis
Pachymatisma johnstonia
Polymastia boletiformis
Hymedesmia jecusculum
Hymedesmia paupertas
Haliclona urceolus
Haliclona viscosa
CNIDARIA
Tubularia indivisa
Halecium halecinum
Kirchenpaueria pinnata
Nemertesia antennina
Nemertesia ramosa
Alcyonium digitatum
Alcyonium hibernicum
Epizoanthus couchii
Parazoanthus anguicomus
Parazoanthus axinellae
Actinothoe sphyrodeta
Caryophyllia smithii
CRUSTACEA
Adna anglica
Homarus gammarus
MOLLUSCA
Calliostoma zizyphinum
Simnia patula
Antiopella cristata
Edmundsella pedata
BRYOZOA
Crisia eburnea
Plagioecia patina
Disporella hispida
Electra pilosa
Caberea boryi
Scrupocellaria sp.
Cellaria fistulosa
Parasmittina trispinosa
Schizomavella linearis
TUNICATA
Clavelina lepadiformis
Aplidium punctum
Didemnum sp.
Ascidia mentula
Dendrodoa sp.
PISCES
Ctenolabrus rupestris
Labrus mixtus
RHODOPHYTA
Delesseria sanguinea
Drachiella heterocarpa
Leucosolenia sp.
Sycon ciliatum
Dysidea fragilis
Pachymatisma johnstonia
Polymastia boletiformis
Hymedesmia jecusculum
Hymedesmia paupertas
Haliclona urceolus
Haliclona viscosa
CNIDARIA
Tubularia indivisa
Halecium halecinum
Kirchenpaueria pinnata
Nemertesia antennina
Nemertesia ramosa
Alcyonium digitatum
Alcyonium hibernicum
Epizoanthus couchii
Parazoanthus anguicomus
Parazoanthus axinellae
Actinothoe sphyrodeta
Caryophyllia smithii
CRUSTACEA
Adna anglica
Homarus gammarus
MOLLUSCA
Calliostoma zizyphinum
Simnia patula
Antiopella cristata
Edmundsella pedata
BRYOZOA
Crisia eburnea
Plagioecia patina
Disporella hispida
Electra pilosa
Caberea boryi
Scrupocellaria sp.
Cellaria fistulosa
Parasmittina trispinosa
Schizomavella linearis
TUNICATA
Clavelina lepadiformis
Aplidium punctum
Didemnum sp.
Ascidia mentula
Dendrodoa sp.
PISCES
Ctenolabrus rupestris
Labrus mixtus
RHODOPHYTA
Delesseria sanguinea
Drachiella heterocarpa
Biotope 1 : Upper circalittoral bedrock (limestone) with Delesseria sanguinea, Alcyonium digitatum and Pachymatisma johnstonia.
PORIFERA
Leucosolenia sp. O
Sycon ciliatum R
Dysidea fragilis O
Pachymatisma johnstonia O
Polymastia boletiformis O
Hymedesmia jecusculum R
Hymedesmia paupertas O
Haliclona urceolus R
Haliclona viscosa F
CNIDARIA
Tubularia indivisa F
Halecium halecinum O
Kirchenpaueria pinnata O
Nemertesia antennina C
Nemertesia ramosa F
Alcyonium digitatum C
Alcyonium hibernicum O
Epizoanthus couchii O
Parazoanthus anguicomus F
Parazoanthus axinellae F
Actinothoe sphyrodeta F
Caryophyllia smithii C
CRUSTACEA
Adna anglica O
Homarus gammarus R
MOLLUSCA
Calliostoma zizyphinum O
Simnia patula R
Antiopella cristata O
Edmundsella pedata R
BRYOZOA
Crisia eburnea O
Plagioecia patina F
Disporella hispida R
Electra pilosa O
Caberea boryi O
Scrupocellaria sp. O
Cellaria fistulosa O
Parasmittina trispinosa F
Schizomavella linearis O
TUNICATA
Clavelina lepadiformis F
Aplidium punctum F
Didemnum sp. O
Ascidia mentula R
Dendrodoa sp. C
PISCES
Ctenolabrus rupestris O
Labrus mixtus O
RHODOPHYTA
Delesseria sanguinea F
Drachiella heterocarpa F
Leucosolenia sp. O
Sycon ciliatum R
Dysidea fragilis O
Pachymatisma johnstonia O
Polymastia boletiformis O
Hymedesmia jecusculum R
Hymedesmia paupertas O
Haliclona urceolus R
Haliclona viscosa F
CNIDARIA
Tubularia indivisa F
Halecium halecinum O
Kirchenpaueria pinnata O
Nemertesia antennina C
Nemertesia ramosa F
Alcyonium digitatum C
Alcyonium hibernicum O
Epizoanthus couchii O
Parazoanthus anguicomus F
Parazoanthus axinellae F
Actinothoe sphyrodeta F
Caryophyllia smithii C
CRUSTACEA
Adna anglica O
Homarus gammarus R
MOLLUSCA
Calliostoma zizyphinum O
Simnia patula R
Antiopella cristata O
Edmundsella pedata R
BRYOZOA
Crisia eburnea O
Plagioecia patina F
Disporella hispida R
Electra pilosa O
Caberea boryi O
Scrupocellaria sp. O
Cellaria fistulosa O
Parasmittina trispinosa F
Schizomavella linearis O
TUNICATA
Clavelina lepadiformis F
Aplidium punctum F
Didemnum sp. O
Ascidia mentula R
Dendrodoa sp. C
PISCES
Ctenolabrus rupestris O
Labrus mixtus O
RHODOPHYTA
Delesseria sanguinea F
Drachiella heterocarpa F
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