Marine Biodiversity Data Portal - NI

Portandoon, Rathlin Island.

[Site list for year 1986]

Survey number: 555 Event number: 19860916/21 Date: 1986-09-16 GPS: 55.29627,-6.28251. Depth: 3.5 to 0.2 m. [ View map ]

Site Description: An exposed steep rock site at the base of a basalt cliff promontory. Some small outcrops occur forming small sheltered areas in the sublittoral fringe. The intertidal/littoral region is extended due to wave action causing a high splash zone up the cliff. Hydropunctaria maura (originally recorded as Verrucaria maura) is abundant throughout the mid upper shores and throughout the splash zone with encrusting algae (non and calcareous) having near total cover in the lower shore. Position corrected to 55.29627,-6.28251, original inland.

No images for site.

Species list (83 species recorded):

PORIFERA
Grantia compressa
Sycon ciliatum
Myxilla incrustans
Halichondria panicea
CNIDARIA
Haliclystus auricula
Kirchenpaueria pinnata
Actinia equina
Urticina felina
ANNELIDA
Lepidonotus clava
Nereis pelagica
Platynereis coccinea
Polydora ciliata
Cirratulus cirratus
Spirorbis spirorbis
Spirorbis tridentatus
CRUSTACEA
Chthamalus stellatus
Semibalanus balanoides
Apherusa jurinei
Hyale prevostii
Hyale pontica
Amphithoe rubricata
Ischyrocerus anguipes
Jassa sp.
Jassa falcata
Parajassa pelagica
Janiropsis breviremis
Idotea pelagica
MOLLUSCA
Testudinalia testudinalis
Patella vulgata
Patella pellucida
Lacuna (Lacuna) parva
Littorina sp.
Littorina littorea
Littorina (Neritrema) neglecta
Melarhaphe neritoides
Skeneopsis planorbis
Onoba (Onoba) semicostata
Mytilidae sp.
Mytilus edulis
Lasaea adansoni
BRYOZOA
Crisidia cornuta
Callopora lineata
Celleporella hyalina
Umbonula littoralis
ECHINODERMATA
Amphipholis squamata
TUNICATA
Diplosoma listerianum
Botrylloides leachii
RHODOPHYTA
Porphyra umbilicalis
Gelidium pusillum
Palmaria palmata
Hildenbrandia rubra
Corallina officinalis
Phymatolithon sp.
Lithophyllum orbiculatum
Lithothamnion glaciale
Melobesia membranacea
Phymatolithon lenormandii
Titanoderma pustulatum
Mastocarpus stellatus
Phyllophora crispa
Ceramium sp.
Ceramium shuttleworthianum
Polysiphonia atlantica
Polysiphonia stricta
CHROMOPHYTA
Ectocarpus fasciculatus
Ectocarpus siliculosus
Hincksia sp.
Elachista fucicola
Elachista scutulata
Stragularia clavata
Sphacelaria fusca
Alaria esculenta
Laminaria digitata
Laminaria hyperborea
Saccharina latissima
Himanthalia elongata
CHLOROPHYTA
Blidingia marginata
Ulva sp.
Ulva intestinalis
Ulva linza
Ulva fasciata
Cladophora rupestris
Cladophora sericea

No biotope record.

PORIFERA
Grantia compressa P
Sycon ciliatum P
Myxilla incrustans P
Halichondria panicea P
CNIDARIA
Haliclystus auricula P
Kirchenpaueria pinnata P
Actinia equina P
Urticina felina P
ANNELIDA
Lepidonotus clava P
Nereis pelagica P
Platynereis coccinea P
Polydora ciliata P
Cirratulus cirratus P
Spirorbis spirorbis P
Spirorbis tridentatus P
CRUSTACEA
Chthamalus stellatus P
Semibalanus balanoides P
Apherusa jurinei P
Hyale prevostii P
Hyale pontica P
Amphithoe rubricata P
Ischyrocerus anguipes P
Jassa sp. P
Jassa falcata P
Parajassa pelagica P
Janiropsis breviremis P
Idotea pelagica P
MOLLUSCA
Testudinalia testudinalis P
Patella vulgata P
Patella pellucida P
Lacuna (Lacuna) parva P
Littorina sp. P
Littorina littorea P
Littorina (Neritrema) neglecta P
Melarhaphe neritoides P
Skeneopsis planorbis P
Onoba (Onoba) semicostata P
Mytilidae sp. P
Mytilus edulis P
Lasaea adansoni P
BRYOZOA
Crisidia cornuta P
Callopora lineata P
Celleporella hyalina P
Umbonula littoralis P
ECHINODERMATA
Amphipholis squamata P
TUNICATA
Diplosoma listerianum P
Botrylloides leachii P
RHODOPHYTA
Porphyra umbilicalis P
Gelidium pusillum P
Palmaria palmata P
Hildenbrandia rubra P
Corallina officinalis P
Phymatolithon sp. P
Lithophyllum orbiculatum P
Lithothamnion glaciale P
Melobesia membranacea P
Phymatolithon lenormandii P
Titanoderma pustulatum P
Mastocarpus stellatus P
Phyllophora crispa P
Ceramium sp. P
Ceramium shuttleworthianum P
Polysiphonia atlantica P
Polysiphonia stricta P
CHROMOPHYTA
Ectocarpus fasciculatus P
Ectocarpus siliculosus P
Hincksia sp. P
Elachista fucicola P
Elachista scutulata P
Stragularia clavata P
Sphacelaria fusca P
Alaria esculenta P
Laminaria digitata P
Laminaria hyperborea P
Saccharina latissima P
Himanthalia elongata P
CHLOROPHYTA
Blidingia marginata P
Ulva sp. P
Ulva intestinalis P
Ulva linza P
Ulva fasciata P
Cladophora rupestris P
Cladophora sericea P

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