Marine

Ecological

Succession in

Bantry Bay

Paper listing the predicted ecological succession of marine life in Bantry Bay, with its beginning on bare concrete with crevices

Juan Lugilde Yáñez 

PhD in Marine Science, Technology and Management

Marine ecological succession in Bantry Bay

Cyanobacteria and microscopic algae – Diatoms – Dinoflagellates – Filamentous and incrustant
algae – Small invertebrates (cnidaria, crustacean, mollusc, tunicates, etc.) – Filter invertebrates
producing larvae (annelids, cnidaria, molluscs, tunicates, etc.) – Macroscopic seaweed – Big
invertebrates (cnidaria, crustacean, equinoderms, molluscs, etc.) -Fishes – Mammals.

 

Cyanobacteria (blue-green algae) and microscopic algae

Calothrix sp.
Richelia sp.
Prochlorococcus sp. (major and most abundant primary and oxygen producer in the ocean).
Synechococcus sp.
Trichodesmium sp.

Diatoms

Chaetoceros sp.
Hemiaulus sinensis
Paralia sp.
Phaeocystis sp.
Pseudo-nitzschia sp. Pseudo-nitzschia delicatissima, Pseudo-nitzschia seriata
Rhizosolenia sp.
Skeletonema sp. Skeletonema costatum
Thalassionema sp.
Thalassiosira sp.

Dinoflagellates

Alexandrium sp.
Azadinium sp.
Dinophysis sp. Dinophysis acuminata, Dinophysis acuta
Heterocapsa sp. Heterocapsa triquetra
Karenia sp. Karenia mikomotoi
Sea sparkleNoctiluca scintillans  Biotoxins- ASP, DSP, PSP.

lamentous algae

Brown seaweed Colpomenia peregrina, Ectocarpus siliculosus, Ellachista flaccida, Punctaria
latifolia, Asperococcus fistulosus, Petalonia fascia.
Green seaweedCladophora sp., (Cladophora rupestris, Cladophora glomerata), Ulva sp., (Ulva
intestinalis, Ulva compressa), Gomontia polyrhiza, Bryopsis plumosa.
Red seaweedBangia fuscopurpurea, Ceramium sp., Ceramium virgatum, Polysiphonia sp.
(Polysiphonia lanosa), Lomentaria articulata (can be cylindrical), Plocamium cartilagineum,
Porphyra linearis.

Incrustant algae

Coralline algae: Lithophyllum incrustans, Mesophyllum lichenoides, Phymatolithon lenormandii,
Phymatolithon lamii, Pneophyllum sp.
Ralfsia verrucosa

Mollusc: Gasteropods

Blue ray limpetPatina pelucida
Common limpetPatella vulgata
Common piddock Pholas dactylus
Common whelkBuccinium undatum
Dog whelkNucella lapillus
Edible periwinkle Littorina littorea
Flat periwinkleLittorina littoralis
Sea slugGreilada elegans
Sea hareAplysia punctata

Sponges, tunicates, briozoos

Ascidia mentula
Breadcrumb sponge- Halichondria panicea
Dead man’s fingerAlcyonium digitatum
Leucoselenia sp.                                 

Star ascidian Botryllus schlosseri

Cnidaria

Common jellyfish Aurelia aurita
Chysaora isosceles

Anemones (Anthozoa, Cnidaria)

Beadlet anemoneActinia equina
Jewel anemoneCorynactes viridis
Snakelocks anemoneAnemonia sulcata

Annelids

LugwormArenicola marina
Ragworm Nereis diversicolor
Peacock worm Sabellaria pavonia
Spirorbis borealis

Mollusc: Bivalves

Blue Mussel Mytilus edulis
Common oysterOstrea edulis
Otter shell Lutraria lutraria
Peppery furrow shellScrobicularia plana
Pod razorshellEnsis siliqua
Toothed topshellMonodonta lineata

Mollusc: Cephalopoda

Common octopusOctopus vulgaris
CuttlefishSepia officinalis

Crustacean

Acorn barnacleSemiballanus ballanoides                                                                            Barnacles (cirripeds)Chtamallus stellatus, Elminius modestus
Black squat lobsterGalathea squamifera
Broad-clawed porcelain crabPorcellana platycheles
Common lobsterHomarus vulgaris
Common prawn Leander serratus
Common shrimp Crangon vulgaris
Common spider crabMaja brachydactyla
Edible crabCancer pagurus
Goose barnacleLepas anatifera
Hermit crabEupagurus bernhardus
Sea slaterLigia oceanica
Shore crabCarcinus maenas
Velvet swimming crab Macropipus puber

Equinoderms

Common starfishAsteria rubens
Common sea urchinEquinus esculentus
Cotton spinnerHolothuria forskali
Cushion starfishAsterina gibbosa
Heart urchin Equinocardium cordatum

Elasmobranquii (sharks and rays)

Basking sharkCetorhinus maximus
Bull hussScyliorhinus stellaris
Lesser spotted dogfishScyliorhinus canicula
Thornback rayRaja clavata
Thorny skate rayAmblyraja radiata

Fish

Atlantic codGadus morhua
BassDicentrachus labrax                         

Conger eel Conger conger                   

Common BlennBlennius pholis               

Corkwing wrasseCrenilabrus melops     

Lumpsucker- Cyclopterus lumpus           

Northern pikeEsox lucius   

Rock gobyGobius paganellus                   

SoleSolea solea                                         

PollackPollachius pollachius

Mammals

Bottlenose dolphinTursiops truncatus
Common seal Phoca vitulina
Grey seal- Halichoerus grypus
Harbour porpoisePhocoena phocoena
Minke whale- Balaenoptera acutorostrata

Four substrates: rock, mud, sand, maerl. Species and substrates can be mixed

Rock

Brown seaweed Channeled wrack (Pelvetia canaliculata), Serrated wrack (Fucus serratus),
Bladder wrack (Fucus vesiculosus), Eggwrack (Ascophyllum nodosum), Thongweed
(Himanthalia elongata), Chorda filum. Kelp species. Laminaria digitata, Alaria esculenta,
Laminaria ochroleuca, Saccharina latissima, Sargassum muticum
Green seaweed- Sea lettuce (Ulva lactuca), Ulva sp., Codium tomentosum
Red seaweed- (Irish moss) Chondrus crispus, (Dulse, dillisk) Palmaria palmata, Nitophyllum
puntactaum, Delesseria sanguinea, Corallina officinalis, Osmundea pinnatifida
Hydroids Nemertesia anteninna, Halecium halecinum
Tunicates- Sea squirt Phallusia mammilata

Mud-sand

Annelid, sabellidMyxicola infundibulum
BrittlestarsAmphiura chiajei, Amphirua filiformis
Common cockleCardium edule                                                                                                                                                                                                                  Dublin Bay prawnNephrops norvegicus
Flounder– Platichthys flesus
Laver spire shell- Hydrobia ulvae
Masked crab- Corystes cassivellaunus                   
Sand hopperTalitris saltator
Sea pen- Virgularia mirabilis (Pennatulacea, Anthozoa, Cnidaria)

Maerl

Lithothamnion corallioides & Phymatolihon calcareum >> Phymatolithon lusitanicum,
Lithophyllum hibernicum + Crusty corallineLithophyllum nitorum
Brown seaweedDichtyota dichotoma
Red seaweed- Calliblepharis cilliata
Crabs- Spider crab (Macropodia rostrata), Liocarcinus corrugatus

Seagrasses

Common eelgrassZostera marina
Zostera noltii

Bibliography

Emblow C.S., Picton B.E., Morrow C.C., Sides E.M. & Costello M.J. (1994). Marine communities
of the Bantry Bay area, and an assessment of their nature conservation importance. Field
survey report. Environmental Science Unit. Trinity College. Dublin.

Gallagher F. (2020) Introduction to Seaweeds of Inner Bantry Bay.

Guiry M.D. (1973). The marine algal flora of Bantry Bay, Co. Cork. Irish Fisheries Investigations,
Series B (Marine) 10: 1-22.

Guiry, M.D. & Guiry, G.M. (2022). AlgaeBase. World-wide electronic publication, National
University of Ireland, Galway. http://www.algaebase.org.

Pardo C, Lopez L, Peña V, HernándezKantún J, Le Gall L, et al. (2014) A Multilocus Species
Delimitation Reveals a Striking Number of Species of Coralline Algae Forming Maerl in the
OSPAR Maritime Area. PLoS ONE 9(8): e104073. doi:10.1371/journal.pone.0104073

Sterry P. & Mooney D. (2004) Complete Irish Wildlife. Collins Publisher. ISBN 0007176295

https://www.epa.ie/

https://www.marine.ie/

https://www.marinespecies.org/ (World Register Of Marine Species, Worms)

https://www.wildlifetrusts.org/

–Parts of this list have been made by personal communications and local species knowledge-.

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