Non-native species updates - Magallana gigas

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Friday 25 October, 2024, by HTW

The following biotopes have been updated with evidence on the likely effects of the invasive non-native species Magallana gigas (Pacific oyster). 

MHCBI code Biotope name

LR.HLR.MusB.MytB

Mytilus edulis and barnacles on very exposed eulittoral rock

LR.HLR.MusB.Cht

Chthamalus spp. on exposed eulittoral rock

LR.HLR.MusB.Cht.Cht

Chthamalus spp. on exposed upper eulittoral rock

LR.HLR.MusB.Cht.Lpyg

Chthamalus spp. and Lichina pygmaea on steep exposed upper eulittoral rock

LR.HLR.MusB.Sem

Semibalanus balanoides on exposed to moderately exposed or vertical sheltered eulittoral rock

LR.HLR.MusB.Sem.Sem

Semibalanus balanoides, Patella vulgata and Littorina spp. on exposed to moderately exposed or vertical sheltered eulittoral rock

LR.HLR.MusB.Sem.FvesR

Semibalanus balanoides, Fucus vesiculosus and red seaweeds on exposed to moderately exposed eulittoral rock

LR.HLR.MusB.Sem.LitX

Semibalanus balanoides and Littorina spp. on exposed to moderately exposed eulittoral boulders and cobbles

LS.LSa.FiSa.Po

Polychaetes in littoral fine sand

LS.LSa.FiSa.Po.Pful

Polychaetes, including Paraonis fulgens, in littoral fine sand

LS.LSa.FiSa.Po.Mten

Polychaetes and Macomangulus tenuis in littoral fine sand

LS.LSa.FiSa.Po.Ncir

Nephtys cirrosa-dominated littoral fine sand

LS.LSa.MuSa.MacAre

Macoma balthica and Arenicola marina in littoral muddy sand

LS.LSa.MuSa.CerPo

Cerastoderma edule and polychaetes in littoral muddy sand

LS.LSa.MuSa.HedMacEte

Hediste diversicolor, Macoma balthica and Eteone longa in littoral muddy sand

LS.LSa.MuSa.BatCare

Bathyporeia pilosa and Corophium arenarium in littoral muddy sand

LS.LSa.MuSa.Lan

Lanice conchilega in littoral sand

LS.LMu.MEst.NhomMacStr

Nephtys hombergii, Macoma balthica and Streblospio shrubsolii in littoral sandy mud

LS.LMu.MEst.HedMac

Hediste diversicolor and Macoma balthica in littoral sandy mud

LS.LMu.MEst.HedMacScr

Hediste diversicolor, Macoma balthica and Scrobicularia plana in littoral sandy mud

LS.LMu.UEst.NhomStr

Nephtys hombergii and Streblospio shrubsolii in littoral mud

LS.LMu.UEst.Hed

Hediste diversicolor in littoral mud

LS.LMu.UEst.Hed.Str

Hediste diversicolor and Streblospio shrubsolii in littoral sandy mud

LS.LMu.UEst.Hed.Cvol

Hediste diversicolor and Corophium volutator in littoral mud

LS.LMu.UEst.Hed.Ol

Hediste diversicolor and oligochaetes in littoral mud

LS.LMu.UEst.Tben

Tubificoides benedii and other oligochaetes in littoral mud

LS.LMx.GvMu

Hediste-dominated gravelly sandy mud shores

LS.LMx.GvMu.HedMx

Hediste diversicolor in littoral gravelly muddy sand and gravelly sandy mud

LS.LMx.GvMu.HedMx.Mac

Hediste diversicolor and Macoma balthica in littoral gravelly mud

LS.LMx.GvMu.HedMx.Scr

Hediste diversicolor and Scrobicularia plana in littoral gravelly mud

LS.LMx.GvMu.HedMx.Str

Hediste diversicolor and Streblospio shrubsolii in littoral gravelly sandy mud

LS.LMx.GvMu.HedMx.Cir

Hediste diversicolor, cirratulids and Tubificoides spp. in littoral gravelly sandy mud

LS.LMx.GvMu.HedMx.Cvol

Hediste diversicolor and Corophium volutator in littoral gravelly sandy mud

LS.LMx.Mx.CirCer

Cirratulids and Cerastoderma edule in littoral mixed sediment

LR.FLR.Eph.BLitX

Barnacles and Littorina spp. on unstable eulittoral mixed substrata

LS.LBR.Sab.Salv

Sabellaria alveolata reefs on sand-abraded eulittoral rock

LS.LBR.LMus

Littoral mussel beds on sediment

LS.LBR.LMus.Myt

Mytilus edulis beds on littoral sediments

LS.LBR.LMus.Myt.Mx

Mytilus edulis beds on littoral mixed substrata

LS.LBR.LMus.Myt.Sa

Mytilus edulis beds on littoral sand

LS.LBR.LMus.Myt.Mu

Mytilus edulis beds on littoral mud

CR.MCR.CMus.CMyt

Mytilus edulis beds with hydroids and ascidians on tide-swept exposed to moderately wave-exposed circalittoral rock

SS.SCS.ICS.SLan

Dense Lanice conchilega and other polychaetes in tide-swept infralittoral sand and mixed gravelly sand

SS.SBR.PoR.SalvMx

Sabellaria alveolata on variable salinity sublittoral mixed sediment

SS.SBR.SMus.MytSS

Mytilus edulis beds on sublittoral sediment