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Seal Bay, Skerries, Portrush

Survey number: 780 Event number: 20241005/01 Date: 2024-10-05 GPS: 55.22385,-6.63403. Depth: -12.0 to -27.0 m. [ View map ]

Site Description: Bay on North side of the Skerries, partly out of the tidal stream and full wave exposure. Seabed of rounded boulders below 20 m and bedrock wall from 20m to 12 m.

[Video]

Biotope 1 : Rounded boulders in moderate tidal stream, exposed to open sea to the North. Flustra foliacea common.

PORIFERA
Raspailia ramosa R
Stelligera montagui R
Polymastia boletiformis R
Cliona celata F
Phorbas fictitius R
Mycale rotalis R
CNIDARIA
Tubularia indivisa O
Sertularella sp. F
Sertularella polyzonias O
Sertularia argentea O
Nemertesia antennina C
Nemertesia ramosa O
Caryophyllia smithii C
Caryophyllia smithii O
ANNELIDA
Pomatoceros triqueter F
CRUSTACEA
Balanus crenatus O
Adna anglica C
Cancer pagurus R
MOLLUSCA
Calliostoma zizyphinum O
Diaphorodoris alba R
BRYOZOA
Crisia denticulata F
Crisia eburnea O
Alcyonidium diaphanum C
Flustra foliacea C
Securiflustra securifrons F
ECHINODERMATA
Crossaster papposus R
Henricia oculata R
Marthasterias glacialis R
Echinus esculentus C
Holothuria forskali R
TUNICATA
Botryllus renierii O
PISCES
Centrolabrus exoletus O
Labrus bergylta O
Labrus mixtus R
Parablennius gattorugine R
RHODOPHYTA
Heterosiphonia plumosa F
Acrosorium venulosum F
Delesseria sanguinea O
Erythroglossum laciniatum F
CHROMOPHYTA
Dictyota dichotoma O

Biotope 2 : Bedrock with Laminaria hyperborea, silty with strong tidal streams and fully exposed to wave action from the North.

PORIFERA
Dysidea fragilis O
CNIDARIA
Amphisbetia operculata O
Obelia geniculata C
Alcyonium digitatum F
Actinothoe sphyrodeta O
Corynactis viridis F
CRUSTACEA
Balanus crenatus C
MOLLUSCA
Calliostoma zizyphinum O
BRYOZOA
Membranipora membranacea C
TUNICATA
Botryllus renierii O
PISCES
Taurulus bubalis R
RHODOPHYTA
Dilsea carnosa O
Cryptopleura ramosa F
Delesseria sanguinea C
Membranoptera alata O
CHROMOPHYTA
Dictyota dichotoma F
Laminaria hyperborea C
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