Marine Biodiversity Data Portal - NI

Yellow Rocks, Strangford Lough.

Survey number: 555 Event number: 19860528/22 Date: 1986-05-28 GPS: 54.44200,-5.54400. Depth: 3.5 to 0.2 m. [ View map ]

Site Description: The location is situated in a large bay and is a mixture of sandstone platforms and boulders on mud and muddy sand. The bay is highly convoluted and has small muddy areas towards the landward sides. The boulder habitat consists of medium and small boulders which either congregate or are widely dispersed forming large areas of open mud or muddy sand. Much of this is covered with water forming huge 'pools' which appear rich for algae attached to boulders. The habitat is dominated by Ascophyllum on boulders and ridges but has other fucoid zones. The wet areas in the boulders have an abundance of Codium, filamentous reds, greens and browns, foliose reds and green algae. All became more abundant towards the lower shore. No laminarian zone occurred at the lower shore boulders. The platforms where the site was located consisted of sandstone platforms with boulders on top. The sides were steep and boulders and stones and muddy sand occurred towards the lower shore. Silt covered the platforms with a thin layer. Seals were seen to haul out.

No images for site.

Species list (171 species recorded)

PORIFERA Lanice conchilega Idotea granulosa Mimachlamys varia Acrochaetium secundata Membranoptera alata Fucus spiralis
Sycon ciliatum Nicolea venustula Ligia oceanica Turtonia minuta Rhodochorton purpureum Polysiphonia lanosa Fucus vesiculosus
Grantia compressa Sabella pavonina Pisidia longicornis BRYOZOA Bonnemaisonia hamifera Polysiphonia stricta Pelvetia canaliculata
Myxilla incrustans Pomatoceros triqueter Cancer pagurus Flustrellidra hispida Gelidium spinosum Rhodomela confervoides CHLOROPHYTA
Halichondria panicea Filograna implexa Necora puber Electra pilosa Gelidium pusillum CHROMOPHYTA Chlorochytrium cohnii
Halisarca dujardinii Circeis spirillum Carcinus maenas ECHINODERMATA Palmaria palmata Dichosporangium chordariae Prasiola stipitata
Laxosuberites sp. Spirorbis spirorbis MOLLUSCA Asterina gibbosa Rhodothamniella floridula Ectocarpus fasciculatus Spongomorpha aeruginosa
CNIDARIA Spirorbis tridentatus Tonicella marmorea Asterina phylactica Hildenbrandia rubra Pylaiella littoralis Ulothrix flacca
Dynamena pumila OLIGOCHAETA sp. Diodora graeca Leptasterias muelleri Corallina officinalis Elachista fucicola Ulothrix subflaccida
Actinia equina CRUSTACEA Margarites (Margarites) helicinus Ophiothrix fragilis Lithothamnion glaciale Myrionema strangulans Urospora penicilliformis
Anemonia viridis Verruca stroemia Patella (Patella) vulgata Amphipholis squamata Melobesia membranacea Myriotrichia clavaeformis Enteromorpha sp.
NEMERTEA Elminius modestus Patella pellucida TUNICATA Phymatolithon lenormandii Asperococcus bullosus Enteromorpha clathrata
NEMERTEA sp. Semibalanus balanoides Lacuna (Lacuna) pallidula Sidnyum turbinatum Titanoderma pustulatum Chilionema reptans Enteromorpha compressa
SIPUNCULA Apherusa jurinei Littorina (Littorina) littorea Ascidiella scabra Catenella caespitosa Colpomenia peregrina Enteromorpha intestinalis
Nephasoma (Nephasoma) minutum Stenothoe monoculoides Littorina (Neritrema) mariae Ascidia conchilega Cruoria pellita Ralfsia sp. Enteromorpha linza
ANNELIDA Hyale prevostii Littorina (Neritrema) neglecta Ascidia mentula Cystoclonium purpureum Eudesme virescens Enteromorpha prolifera
Harmothoe imbricata Dexamine spinosa Littorina (Neritrema) obtusata Dendrodoa grossularia Dilsea carnosa Leathesia difformis Ulva fasciata
Harmothoe impar Dexamine thea Skeneopsis planorbis Botrylloides leachi Furcellaria lumbricalis Cladostephus spongiosus Cladophora hutchinsiae
Lepidonotus squamatus Amphithoe rubricata Rissoa interrupta PISCES Chondrus crispus Sphacelaria fusca Cladophora rupestris
Eulalia sp. Ericthonius sp. Cingula (Cingula) cingillus Anguilla anguilla Mastocarpus stellatus Dictyota dichotoma Cladophora sericea
Syllis gracilis Aora gracilis Onoba (Onoba) semicostata Lipophrys pholis Phyllophora crispa Desmarestia aculeata Rhizoclonium riparium
Typosyllis armillaris Lembos websteri Nucella lapillus Pholis gunnellus Chylocladia verticillata Chorda filum Bryopsis plumosa
Platynereis coccinea Microdeutopus anomalus Retusa (Retusa) obtusa RHODOPHYTA Lomentaria articulata Laminaria sp. Codium sp.
Cirratulus cirratus Corophium sp. Facelina bostoniensis Erythrocladia irregularis Lomentaria clavellosa Laminaria saccharina
Capitella capitata Corophium sextonae Aeolidia papillosa Erythrotrichia carnea Ceramium sp. Halidrys siliquosa
Arenicola marina Caprella acanthifera Mytilus edulis Porphyra amethystea Ceramium echionotum Ascophyllum nodosum
Eupolymnia nebulosa Jaera albifrons Musculus subpictus Porphyra insolita Plumaria plumosa Fucus serratus

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