Marine Biodiversity Data Portal - NI

NW Portstewart Point.

Survey number: 550 Event number: 19840705/08 Date: 1984-07-05 GPS: 55.19050,-6.72250. Depth: -2.0 to -2.0 m. [ View map ]

Site Description: Bedrock shelf with numerous gullies 1m deep. Dense kelp on top. Halichondria, Mytilus and ascidians dominated below.

Species list and abundance (64 species recorded):

PORIFERA	Alcyonium digitatum P	Patella pellucida P	Echinus esculentus P	Polycarpa pomaria P	Phyllophora crispa P	CHROMOPHYTA
Leuconia nivea P	Urticina felina P	Trivia arctica P	Aslia lefevrei P	Polycarpa scuba P	Plocamium cartilagineum P	Desmarestia aculeata P
Amphilectus fucorum P	Cylista elegans P	Aplysia (Pruvotaplysia) punctata P	TUNICATA	Dendrodoa grossularia P	Lomentaria orcadensis P	Desmarestia ligulata P
Myxilla incrustans P	Caryophyllia smithii P	Mytilus edulis P	Clavelina lepadiformis P	Botryllus schlosseri P	Acrosorium venulosum P	Desmarestia viridis P
Halichondria panicea P	CRUSTACEA	BRYOZOA	Polyclinum aurantium P	RHODOPHYTA	Cryptopleura ramosa P	Alaria esculenta P
Haliclona viscosa P	Balanus crenatus P	Alcyonidium diaphanum P	Sidnyum turbinatum P	Porphyra sp. P	Delesseria sanguinea P	Laminaria hyperborea P
CNIDARIA	Cancer pagurus P	Membranipora membranacea P	Aplidium nordmanni P	Palmaria palmata P	Membranoptera alata P	CHLOROPHYTA
Halecium halecinum P	Necora puber P	Electra pilosa P	Aplidium punctum P	Corallina officinalis P	Phycodrys rubens P	Ulva lactuca P
Sertularia argentea P	MOLLUSCA	ECHINODERMATA	Didemnum sp. P	Dilsea carnosa P	Odonthalia dentata P
Plumularia setacea P	Steromphala cineraria P	Asterias rubens P	Diplosoma listerianum P	Chondrus crispus P	Polysiphonia stricta P
Obelia geniculata P	Calliostoma zizyphinum P	Leptasterias muelleri P	Ciona intestinalis P	Metacallophyllis laciniata P	Pterosiphonia parasitica P

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