WoRMS source details
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Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974 (additional source)
Antithamnionella spirographidis (Schiffner) E.M.Wollaston, 1968 (additional source)
Antithamnionella ternifolia (Hooker f. & Harvey) Lyle, 1922 (additional source)
Bonnemaisonia hamifera Hariot, 1891 (additional source)
Choromytilus chilensis (Hupé, 1854) accepted as Mytilus platensis A. d'Orbigny, 1842 (basis of record)
Clavopsella navis (Millard, 1959) accepted as Pachycordyle michaeli (Berrill, 1948) (additional source)
Clymenella torquata (Leidy, 1855) (additional source)
Codium fragile subsp. atlanticum (A.D.Cotton) P.C.Silva, 1955 (additional source)
Codium fragile subsp. tomentosoides (van Goor) P.C.Silva, 1955 accepted as Codium fragile subsp. fragile (Suringar) Hariot, 1889 (additional source)
Colpomenia peregrina Sauvageau, 1927 (additional source)
Gonionemus vertens A. Agassiz, 1862 (additional source)
Grateloupia doryphora (Montagne) M.Howe, 1914 (additional source)
Grateloupia filicina var. luxurians A.Gepp & E.S.Gepp, 1906 accepted as Grateloupia subpectinata Holmes, 1912 (additional source)
Haliplanella lineata (Verrill, 1869) accepted as Diadumene lineata (Verrill, 1869) (additional source)
Hydroides dianthus (Verrill, 1873) (additional source)
Marenzelleria viridis (Verrill, 1873) (additional source)
Odontella sinensis (Greville) Grunow, 1884 accepted as Biddulphia sinensis Greville, 1866 (additional source)
Pikea californica Harvey, 1853 (additional source)
Pleurosigma simonsenii Hasle, 1990 (additional source)
Polysiphonia harveyi Bailey, 1848 accepted as Melanothamnus harveyi (Bailey) Díaz-Tapia & Maggs, 2017 (additional source)
Solieria chordalis (C.Agardh) J.Agardh, 1842 (additional source)
Thalassiosira punctigera (Castracane) Hasle, 1983 accepted as Ethmodiscus punctiger Castracane, 1886 (additional source)
Thalassiosira tealata Takano, 1980 (additional source)
Undaria pinnatifida (Harvey) Suringar, 1873 (additional source)
Atlantic Coast of Spain for Hydroides dianthus (Verrill, 1873) (origin: alien)
Atlantic Coast of Spain for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
Atlantic Coast of Spain for Undaria pinnatifida (Harvey) Suringar, 1873 (origin: alien)
Atlantic Ocean for Odontella sinensis (Greville) Grunow, 1884 (origin: alien)
Azores Exclusive Economic Zone for Bonnemaisonia hamifera Hariot, 1891 (origin: alien)
Azores Exclusive Economic Zone for Clavopsella navis (Millard, 1959) (origin: alien)
Baltic sea for Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974 (origin: alien)
Baltic sea for Odontella sinensis (Greville) Grunow, 1884 (origin: alien)
Belgian Exclusive Economic Zone for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
British Isles for Agardhiella subulata (C.Agardh) Kraft & M.J.Wynne, 1979 (origin: alien)
British Isles for Antithamnionella ternifolia (Hooker f. & Harvey) Lyle, 1922 (origin: alien)
British Isles for Antithamnionella ternifolia (Hooker f. & Harvey) Lyle, 1922 (origin: alien)
British Isles for Asparagopsis armata Harvey, 1855 (origin: alien)
British Isles for Bonnemaisonia hamifera Hariot, 1891 (origin: alien)
British Isles for Codium fragile subsp. tomentosoides (van Goor) P.C.Silva, 1955 (origin: alien)
British Isles for Colpomenia peregrina Sauvageau, 1927 (origin: alien)
British Isles for Odontella sinensis (Greville) Grunow, 1884 (origin: alien)
British Isles for Undaria pinnatifida (Harvey) Suringar, 1873 (origin: alien)
Brittany for Grateloupia doryphora (Montagne) M.Howe, 1914 (origin: alien)
Brittany for Grateloupia filicina var. luxurians A.Gepp & E.S.Gepp, 1906 (origin: alien)
Brittany for Undaria pinnatifida (Harvey) Suringar, 1873 (origin: alien)
Cornwall for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
Cornwall for Solieria chordalis (C.Agardh) J.Agardh, 1842 (origin: alien)
Danish Exclusive Economic Zone for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
Dorset for Codium fragile subsp. atlanticum (A.D.Cotton) P.C.Silva, 1955 (origin: alien)
Dorset for Grateloupia doryphora (Montagne) M.Howe, 1914 (origin: alien)
Dorset for Grateloupia filicina var. luxurians A.Gepp & E.S.Gepp, 1906 (origin: alien)
Dorset for Solieria chordalis (C.Agardh) J.Agardh, 1842 (origin: alien)
Dutch Exclusive Economic Zone for Antithamnionella ternifolia (Hooker f. & Harvey) Lyle, 1922 (origin: alien)
East Coast of England for Polysiphonia harveyi Bailey, 1848 (origin: alien)
East Coast of England for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
East Scotland for Codium fragile subsp. atlanticum (A.D.Cotton) P.C.Silva, 1955 (origin: alien)
England for Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974 (origin: alien)
England for Codium fragile subsp. atlanticum (A.D.Cotton) P.C.Silva, 1955 (origin: alien)
England for Gonionemus vertens A. Agassiz, 1862 (origin: alien)
England for Grateloupia doryphora (Montagne) M.Howe, 1914 (origin: alien)
England for Haliplanella lineata (Verrill, 1869) (origin: alien)
English Channel for Coscinodiscus wailesii Gran & Angst, 1931 (origin: alien)
English Channel for Pleurosigma simonsenii Hasle, 1990 (origin: alien)
English Channel for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
English Channel for Thalassiosira punctigera (Castracane) Hasle, 1983 (origin: alien)
English Channel for Thalassiosira tealata Takano, 1980 (origin: alien)
Europe for Haliplanella lineata (Verrill, 1869) (origin: alien)
Firth of Forth for Marenzelleria viridis (Verrill, 1873) (origin: alien)
Firth of Tay for Marenzelleria viridis (Verrill, 1873) (origin: alien)
French part of the English Channel for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
French part of the Mediterranean Sea - Western Basin for Undaria pinnatifida (Harvey) Suringar, 1873 (origin: alien)
Germany for Clavopsella navis (Millard, 1959) (origin: alien)
Helgoland for Coscinodiscus wailesii Gran & Angst, 1931 (origin: alien)
Iceland for Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974 (origin: alien)
Irish Exclusive economic Zone for Antithamnionella spirographidis (Schiffner) E.M.Wollaston, 1968 (origin: alien)
Irish Exclusive economic Zone for Bonnemaisonia hamifera Hariot, 1891 (origin: alien)
Irish Exclusive economic Zone for Polysiphonia harveyi Bailey, 1848 (origin: alien)
Irish Sea for Goniadella gracilis (Verrill, 1873) (origin: alien)
Isle of Wight for Grateloupia doryphora (Montagne) M.Howe, 1914 (origin: alien)
Isle of Wight for Grateloupia filicina var. luxurians A.Gepp & E.S.Gepp, 1906 (origin: alien)
Jersey for Grateloupia doryphora (Montagne) M.Howe, 1914 (origin: alien)
Jersey for Grateloupia filicina var. luxurians A.Gepp & E.S.Gepp, 1906 (origin: alien)
Jersey part of the English Channel for Undaria pinnatifida (Harvey) Suringar, 1873 (origin: alien)
Langstone Harbour for Agardhiella subulata (C.Agardh) Kraft & M.J.Wynne, 1979 (origin: alien)
Mediterranean Sea for Antithamnionella spirographidis (Schiffner) E.M.Wollaston, 1968 (origin: alien)
Mediterranean Sea for Codium fragile subsp. tomentosoides (van Goor) P.C.Silva, 1955 (origin: alien)
Mediterranean Sea for Grateloupia filicina var. luxurians A.Gepp & E.S.Gepp, 1906 (origin: alien)
Mediterranean Sea for Hydroides dianthus (Verrill, 1873) (origin: alien)
Mediterranean Sea for Polysiphonia harveyi Bailey, 1848 (origin: alien)
Mediterranean Sea for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
Netherlands Antilles for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
North Coast of France for Coscinodiscus wailesii Gran & Angst, 1931 (origin: alien)
North France for Antithamnionella spirographidis (Schiffner) E.M.Wollaston, 1968 (origin: alien)
North Sea for Pleurosigma simonsenii Hasle, 1990 (origin: alien)
North Sea for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
North Sea for Thalassiosira punctigera (Castracane) Hasle, 1983 (origin: alien)
Northumberland for Clymenella torquata (Leidy, 1855) (origin: alien)
Northumberland for Codium fragile subsp. atlanticum (A.D.Cotton) P.C.Silva, 1955 (origin: alien)
Norwegian Exclusive Economic Zone for Bonnemaisonia hamifera Hariot, 1891 (origin: alien)
Norwegian Exclusive Economic Zone for Codium fragile subsp. atlanticum (A.D.Cotton) P.C.Silva, 1955 (origin: alien)
Norwegian Exclusive Economic Zone for Codium fragile subsp. tomentosoides (van Goor) P.C.Silva, 1955 (origin: alien)
Norwegian Exclusive Economic Zone for Coscinodiscus wailesii Gran & Angst, 1931 (origin: alien)
Norwegian Exclusive Economic Zone for Polysiphonia harveyi Bailey, 1848 (origin: alien)
Norwegian Exclusive Economic Zone for Thalassiosira tealata Takano, 1980 (origin: alien)
Portuguese Atlantic Coast for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
Portuguese Exclusive Economic Zone for Antithamnionella ternifolia (Hooker f. & Harvey) Lyle, 1922 (origin: alien)
Portuguese Exclusive Economic Zone for Grateloupia doryphora (Montagne) M.Howe, 1914 (origin: alien)
Scilly Isles for Pikea californica Harvey, 1853 (origin: alien)
Scilly Isles for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
Shetlands for Asparagopsis armata Harvey, 1855 (origin: alien)
Shetlands for Codium fragile subsp. atlanticum (A.D.Cotton) P.C.Silva, 1955 (origin: alien)
South Coast of England for Antithamnionella spirographidis (Schiffner) E.M.Wollaston, 1968 (origin: alien)
South Coast of England for Clavopsella navis (Millard, 1959) (origin: alien)
South Coast of England for Clymenella torquata (Leidy, 1855) (origin: alien)
South Coast of England for Hydroides dianthus (Verrill, 1873) (origin: alien)
South Coast of England for Polysiphonia harveyi Bailey, 1848 (origin: alien)
South Coast of Ireland for Codium fragile subsp. tomentosoides (van Goor) P.C.Silva, 1955 (origin: alien)
South Norway for Colpomenia peregrina Sauvageau, 1927 (origin: alien)
South Norway for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
South Wales for Antithamnionella spirographidis (Schiffner) E.M.Wollaston, 1968 (origin: alien)
South Wales for Sargassum muticum (Yendo) Fensholt, 1955 (origin: alien)
Spain for Agardhiella subulata (C.Agardh) Kraft & M.J.Wynne, 1979 (origin: alien)
Spain for Asparagopsis armata Harvey, 1855 (origin: alien)
Still sporadic in occurrence, but mainly localised to Langstone and Chichester harbours. West Sussex [details]
European populations from the Netherlands south as far as Portugal [details]
European populations can be found from the western Mediterranean to Shetland [details]
In Europe it is found from Norway to the Azores including Ireland [details]
From Atlantic Spain to Norway. [details]
In europe it is found from Iberia to southern Norway. [details]
Generally occurring in estuaries, ports and harbours on major shipping routes [details]
It has been sporadically reported in the English Channel an southern North Sea, but it may have more or less ... [details]
European populations occur from Norway to the Mediterranean, including Ireland [details]
in Belgian part of the North Sea: Ships: accidental as attached or free-living fouling organisms [details]
in Belgian part of the North Sea: Ships: accidental with ballast water, sea water systems, live wells or other deck ... [details]
in Belgian part of the North Sea: Ships: accidental as attached or free-living fouling organisms [details]
in Belgian part of the North Sea: Ships: accidental with ballast water, sea water systems, live wells or other deck ... [details]
in Belgian part of the North Sea: Aquaculture: accidental [details]
in Belgian part of the North Sea: Aquaculture: accidental [details]
in Belgian part of the North Sea: Aquaculture: accidental [details]
in Belgian part of the North Sea: Other [details]
in Belgian part of the North Sea: Ships: accidental with ballast water, sea water systems, live wells or other deck ... [details]
in Belgian part of the North Sea: Ships: accidental as attached or free-living fouling organisms [details]
in Belgian part of the North Sea: Ships: accidental with ballast water, sea water systems, live wells or other deck ... [details]
in Belgian part of the North Sea: Aquaculture: accidental [details]