Public domain: Introduction events' accounts (419 / 4904)

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Species Recipient region Date of the first record  
Macrobrachium rosenbergiiUkraine / Azov Sea1980 - 1990
Macrobrachium rosenbergiiUkraine / Black Sea1980 - 1990
Macrocystis pyriferaFrance / Celtic seas1972
Macrocystis pyriferaFrance / English Channel1972
Macromedaeus voeltzkowiFrance / Celtic seas1910
Macromedaeus voeltzkowiFrance / English Channel1910
Macrophthalmus (Macrophthalmus) indicusGreece / Eastern Mediterranean2009
Maeotias marginataEstonia1999
Maeotias marginataFinland2012
Maeotias marginataFrance / Biscay Gulf1971
Maeotias marginataFrance / Celtic seas1971
Maeotias marginataPortugal / AzoresTo 2002
Maeotias marginataPortugal / Iberian Coastal2009
Magallana angulataFrance / Biscay Gulf1866
Magallana angulataGermany / North Sea1913
Magallana angulataNetherlandsTo 1928
Magallana gigasAustralia / Bass strait1955
Magallana gigasBelgium1960 - 1969
Magallana gigasChina / Yellow SeaTo 2004
Magallana gigasDenmark / Baltic Sea1972
Magallana gigasDenmark / North Sea1972
Magallana gigasFrance / Biscay Gulf1868
Magallana gigasFrance / Celtic seas1866
Magallana gigasFrance / English Channel1970
Magallana gigasFrance / Western Mediterranean1962
Magallana gigasGermany / Baltic Sea1970 - 1979
Magallana gigasGermany / North Sea1984
Magallana gigasIceland2013
Magallana gigasIreland1877
Magallana gigasItaly / Adriatic Sea1964
Magallana gigasItaly / Central MediterraneanTo 1968
Magallana gigasItaly / Western MediterraneanTo 1936
Magallana gigasNetherlands1965
Magallana gigasNorway / North Sea2005
Magallana gigasPortugal / Iberian CoastalTo 1700
Magallana gigasRomania2003
Magallana gigasSpain / Iberian Coastal1801 - 1900
Magallana gigasSweden / North Sea2007
Magallana gigasUkraine / Black Sea1900 - 1909
Magallana gigasUnited Kingdom (Britain) / Celtic seas1965
Magallana gigasUnited Kingdom (Britain) / English Channel1965
Magallana gigasUnited Kingdom (Britain) / North Sea1926
Magallana gigasUnited Kingdom (Britain) / North Sea / Orkney IslandsTo 1991
Magelona mirabilisUkraine / Black SeaFrom 1997
Malleus regulaGreece / Eastern Mediterranean1990 - 1996
Malleus regulaItaly / Central Mediterranean2018
Mantoniella squamataRomania1980 - 1989
Marenzelleria arctiaRussia / Baltic Sea / St. Petersburg area2009
Marenzelleria arctiaSweden / Baltic Sea2004
Marenzelleria neglectaBelgiumTo 2008
Marenzelleria neglectaDenmark / Baltic Sea2006
Marenzelleria neglectaDenmark / North Sea2001
Marenzelleria neglectaEstonia1994
Marenzelleria neglectaFinland1990
Marenzelleria neglectaGermany / Baltic Sea1985
Marenzelleria neglectaGermany / North Sea1997
Marenzelleria neglectaLatvia1988
Marenzelleria neglectaLithuania1988
Marenzelleria neglectaNetherlandsTo 2001
Marenzelleria neglectaPoland1986
Marenzelleria neglectaRussia / Baltic Sea / Kaliningrad area1988
Marenzelleria neglectaRussia / Baltic Sea / St. Petersburg area1996
Marenzelleria neglectaSweden / Baltic Sea1990
Marenzelleria neglectaSweden / North Sea 
Marenzelleria viridisBelgium1996
Marenzelleria viridisDenmark / Baltic Sea1997
Marenzelleria viridisDenmark / North Sea1990
Marenzelleria viridisFrance / English Channel2009
Marenzelleria viridisFrance / North Sea2009
Marenzelleria viridisGermany / Baltic Sea1985
Marenzelleria viridisGermany / North Sea1983
Marenzelleria viridisIreland2011
Marenzelleria viridisLithuania2010 - 2013
Marenzelleria viridisNetherlands1983
Marenzelleria viridisNorway / North SeaTo 1997
Marenzelleria viridisSweden / Baltic Sea1996 - 2005
Marenzelleria viridisSweden / North Sea2002 - 2003
Marenzelleria viridisUnited Kingdom (Britain) / North Sea1982
Marenzelleria wireniFrance / English Channel2009
Marenzelleria wireniFrance / North Sea2009
Marphysa sanguineaBelgiumTo 2010
Marphysa sanguineaFrance / Biscay GulfTo 2010
Marphysa sanguineaNetherlands1990
Marphysa victoriFrance / Biscay GulfFrom 1970
Marteilia refringensFrance / Celtic seas1968
Marteilia refringensFrance / English ChannelTo 2004
Marteilia refringensGreece / Eastern Mediterranean1997
Marteilia refringensNetherlands1974
Marteilia refringensSpain / Iberian CoastalTo 1975
Marteilia refringensSweden / North Sea2009
Martesia striataIreland1860
Mastocarpus stellatusPortugal / Azores1987
Matuta victorGreece / Eastern Mediterranean2018
Mawia benoviciItaly / Adriatic Sea2013
Medeiothamnion lyalliiAustralia / Bass strait1962
Mediomastus capensisItaly / Western Mediterranean1985
Mediopyxis helysiaGermany / North Sea2003
Mediopyxis helysiaIceland2007
Mediopyxis helysiaNetherlandsTo 2010
Megabalanus coccopomaBelgium1997
Megabalanus coccopomaFrance / North Sea1851
Megabalanus coccopomaNetherlands1976
Megabalanus tintinnabulumBelgium1998
Megabalanus tintinnabulumFrance / Biscay Gulf1970
Megabalanus tintinnabulumFrance / Celtic seas 
Megabalanus tintinnabulumFrance / English Channel2007
Megabalanus tintinnabulumFrance / North Sea2007
Megabalanus tintinnabulumGreece / Eastern Mediterranean2010
Megabalanus tintinnabulumIreland1830 - 1843
Megabalanus tintinnabulumNetherlands1764
Megabalanus tintinnabulumPortugal / Iberian Coastal2016
Megabalanus tulipiformisFrance / Biscay Gulf1956
Melanothamnus harveyiBelgiumTo 2000
Melanothamnus harveyiDenmark / Baltic SeaTo 1982
Melanothamnus harveyiDenmark / North Sea1986
Melanothamnus harveyiFrance / Biscay Gulf1975
Melanothamnus harveyiFrance / Celtic seas1832
Melanothamnus harveyiFrance / English Channel1832
Melanothamnus harveyiFrance / Western Mediterranean1958
Melanothamnus harveyiGermany / Baltic SeaTo 1982
Melanothamnus harveyiGermany / North Sea1972
Melanothamnus harveyiGreece / Eastern Mediterranean2006
Melanothamnus harveyiIrelandTo 1979
Melanothamnus harveyiItaly / Adriatic Sea1998
Melanothamnus harveyiItaly / Western MediterraneanTo 1969
Melanothamnus harveyiNetherlands1960
Melanothamnus harveyiNorway / North Sea1983
Melanothamnus harveyiNorway / Norwegian SeaTo 2012
Melanothamnus harveyiPortugal / Azores2005 - 2007
Melanothamnus harveyiPortugal / Iberian CoastalFrom 2003
Melanothamnus harveyiSpain / Canary Islands1991
Melanothamnus harveyiSpain / Iberian CoastalTo 1998
Melanothamnus harveyiSweden / North Sea1990
Melanothamnus harveyiUnited Kingdom (Britain) / Celtic seas1908
Melanothamnus harveyiUnited Kingdom (Britain) / English Channel1908
Melanothamnus harveyiUnited Kingdom (Britain) / North Sea1908 - 1965
Melanothamnus harveyiUnited Kingdom (Britain) / North Sea / Orkney Islands2014
Melanothamnus japonicusItaly / Adriatic Sea2016
Melibe viridisGreece / Central Mediterranean1970
Melibe viridisGreece / Eastern Mediterranean1994
Melibe viridisItaly / Central Mediterranean1984
Melibe viridisItaly / Western Mediterranean2007
Melita nitidaBelgiumTo 1996
Melita nitidaFrance / Biscay Gulf2013
Melita nitidaFrance / English Channel2003
Melita nitidaFrance / North Sea2003
Melita nitidaGermany / Baltic Sea2010
Melita nitidaGermany / North SeaTo 2011
Melita nitidaNetherlands1998
Melita nitidaPoland2014
Membranipora membranaceaAustralia / Bass strait1879
Membranipora membranaceaCanada / Bay of Fundy2013
Membranipora membranaceaCanada / Northern Gulf of St. Lawrence2002
Membranipora membranaceaCanada / Northern Newfoundland2008
Membranipora membranaceaCanada / South-eastern Scotian Shelf1992
Membranipora membranaceaCanada / Southern Gulf of St. Lawrence and Eastern Scotian Shelf2006
Membranipora membranaceaCanada / Southern Newfoundland and Southern Grand Banks2006
Menaethius monocerosItaly / Western Mediterranean1978
Menippe mercenariaFrance / English Channel2007
Mercenaria mercenariaBelgium1933
Mercenaria mercenariaFrance / Biscay Gulf1936 - 1939
Mercenaria mercenariaFrance / Celtic seas1861
Mercenaria mercenariaFrance / English Channel1861
Mercenaria mercenariaFrance / North Sea1930
Mercenaria mercenariaFrance / Western Mediterranean1965
Mercenaria mercenariaIreland1969
Mercenaria mercenariaItaly / Adriatic Sea1998
Mercenaria mercenariaItaly / Western Mediterranean1983
Mercenaria mercenariaNetherlands1933
Mercenaria mercenariaPortugal / Iberian CoastalTo 2010
Mercenaria mercenariaSpain / Iberian CoastalTo 1978
Mercenaria mercenariaUnited Kingdom (Britain) / English Channel1884
Mercenaria mercenariaUnited Kingdom (Britain) / North Sea1864
Mesanthura romuleaItaly / Central Mediterranean2000
Mesanthura romuleaItaly / Western Mediterranean2000
Mesocalanus tenuicornisRomania1978
Metacalanus acutioperculumItaly / Central Mediterranean1995
Metacarcinus novaezelandiaeAustralia / Bass strait1930
Metapenaeopsis aegyptiaGreece / Eastern Mediterranean1996
Metapenaeopsis mogiensis consobrinaGreece / Eastern Mediterranean1995
Metasychis gotoiFrance / Biscay Gulf2003
Microcosmus squamigerFrance / Western Mediterranean1979
Microcosmus squamigerItaly / Central Mediterranean1977
Microcosmus squamigerItaly / Western Mediterranean1971
Microcosmus squamigerPortugal / AzoresTo 2009
Microcosmus squamigerPortugal / Iberian CoastalTo 2006
Microcosmus squamigerPortugal / Madeira2006
Microcosmus squamigerSpain / Iberian CoastalTo 2007
Micromesistius poutassouUkraine / Black SeaFrom 1999
Microphthalmus similisGermany / North Sea1962
Microphthalmus similisNetherlands1962
Micropogonias undulatusBelgium1998
Micropogonias undulatusDenmark / North Sea2008
Micropogonias undulatusNetherlands2003
Microporella ciliataAustralia / Bass strait1879
Microporella ciliataSpain / Canary IslandsTo 2003
Microporella coronataGreece / Eastern Mediterranean1967
Microporella coronataItaly / Central Mediterranean1991
Micropterus dolomieuFinland1966
Micropterus dolomieuNetherlandsTo 2017
Micropterus dolomieuSweden / North Sea1890 - 1899
Micropterus salmoidesFinland1924
Micropterus salmoidesFrance / English ChannelTo 2017
Micropterus salmoidesGermany / North SeaTo 2017
Micropterus salmoidesNetherlandsTo 2005
Micropterus salmoidesPortugal / Iberian CoastalTo 2017
Miliolinella fichtelianaGreece / Central Mediterranean2006
Miliolinella fichtelianaGreece / Eastern Mediterranean2006
Millerigobius macrocephalusUkraine / Black Sea2009
Mitrella psillaItaly / Western Mediterranean2016
Mizuhopecten yessoensisChina / Yellow SeaTo 1980
Mizuhopecten yessoensisFrance / Celtic seas1977 - 1981
Mizuhopecten yessoensisFrance / English Channel1977 - 1981
Mizuhopecten yessoensisIreland1990
Mnemiopsis leidyiBelgium2007
Mnemiopsis leidyiBulgaria1986
Mnemiopsis leidyiDenmark / Baltic Sea2005
Mnemiopsis leidyiDenmark / North Sea2005
Mnemiopsis leidyiFrance / Biscay Gulf2005
Mnemiopsis leidyiFrance / Celtic seas2009
Mnemiopsis leidyiFrance / English Channel2005
Mnemiopsis leidyiFrance / North Sea2009
Mnemiopsis leidyiFrance / Western Mediterranean2004
Mnemiopsis leidyiGeorgia1997
Mnemiopsis leidyiGermany / Baltic Sea2006
Mnemiopsis leidyiGermany / North Sea2006
Mnemiopsis leidyiGreece / Eastern Mediterranean1990
Mnemiopsis leidyiIran / Caspian SeaFrom 1995
Mnemiopsis leidyiItaly / Adriatic Sea2016
Mnemiopsis leidyiItaly / Central Mediterranean2009
Mnemiopsis leidyiItaly / Western Mediterranean2009
Mnemiopsis leidyiNetherlands1990 - 1999
Mnemiopsis leidyiNorway / North Sea2005
Mnemiopsis leidyiPoland2007
Mnemiopsis leidyiRomaniaFrom 1989
Mnemiopsis leidyiRussia / Baltic Sea / Kaliningrad area2007
Mnemiopsis leidyiRussia / Black Sea1982
Mnemiopsis leidyiSweden / Baltic Sea2006
Mnemiopsis leidyiSweden / North Sea2006
Mnemiopsis leidyiTurkey / Black SeaFrom 1991
Mnemiopsis leidyiUkraine / Azov SeaFrom 1982
Mnemiopsis leidyiUkraine / Black SeaFrom 1982
Mnestia girardiGreece / Eastern Mediterranean1994
Moerisia inkermanicaGermany / Baltic Sea2018
Moerisia inkermanicaItaly / Western Mediterranean1987
Moerisia inkermanicaNetherlands1959
Molgula manhattensisAustralia / Bass strait1967
Molgula manhattensisBelgiumTo 2018
Molgula manhattensisDenmark / Baltic Sea1973
Molgula manhattensisDenmark / North Sea1983
Molgula manhattensisFrance / Celtic seas1849
Molgula manhattensisFrance / English Channel1840 - 1849
Molgula manhattensisFrance / Western Mediterranean1969
Molgula manhattensisGermany / North SeaTo 2009
Molgula manhattensisIceland2018
Molgula manhattensisIreland1998
Molgula manhattensisNetherlandsTo 1762
Molgula manhattensisNorway / Barents SeaTo 1997
Molgula manhattensisNorway / North SeaTo 1997
Molgula manhattensisNorway / Norwegian SeaTo 1997
Molgula manhattensisPortugal / Iberian Coastal2002 - 2016
Molgula manhattensisRomania1901 - 2000
Molgula manhattensisSweden / North Sea2002
Molgula manhattensisUnited Kingdom (Britain) / North Sea / Orkney Islands1995
Molgula planaPortugal / AzoresTo 1969
Molva sp.Ukraine / Black Sea2006
Monocorophium acherusicumAustralia / Bass strait1968
Monocorophium acherusicumFrance / North Sea1965
Monocorophium acherusicumIrelandTo 2007
Monocorophium acherusicumSpain / Iberian CoastalTo 1990
Monocorophium acherusicumUnited Kingdom (Britain) / Celtic seas1950 - 1959
Monocorophium acherusicumUnited Kingdom (Britain) / North Sea1997
Monocorophium acherusicumUnited Kingdom (Britain) / North Sea / Orkney IslandsTo 1997
Monocorophium insidiosumAustralia / Bass strait1996
Monocorophium insidiosumIreland2002
Monocorophium insidiosumUnited Kingdom (Britain) / North Sea1997
Monocorophium insidiosumUnited Kingdom (Britain) / North Sea / Orkney IslandsTo 1997
Monocorophium sextonaeAustralia / Bass strait1995
Monocorophium sextonaeBelgiumTo 2000
Monocorophium sextonaeFrance / Biscay Gulf1936
Monocorophium sextonaeFrance / Celtic seas1936
Monocorophium sextonaeFrance / English Channel1936
Monocorophium sextonaeFrance / North Sea1976
Monocorophium sextonaeGermany / North Sea1997
Monocorophium sextonaeIreland1982
Monocorophium sextonaeNetherlands1952
Monocorophium sextonaeNorway / North Sea1985
Monocorophium sextonaeSpain / Iberian CoastalTo 2003
Monocorophium sextonaeUnited Kingdom (Britain) / Celtic seas1930
Monocorophium sextonaeUnited Kingdom (Britain) / English Channel1930 - 1939
Monocorophium sextonaeUnited Kingdom (Britain) / North SeaTo 2005
Monocorophium uenoiFrance / Biscay Gulf2007
Monocorophium uenoiGermany / North Sea2016
Monocorophium uenoiNetherlands2013
Monodacna colorataRussia / Caspian Sea1955
Monophorus perversusSpain / Iberian CoastalTo 1996
Monopylephorus limosusBelgiumTo 2002
Monstrilla grandisBulgaria1912
Monstrilla grandisRomania1961
Monstrilla helgolandicaRomania1961
Monstrilla longicornisRomania1961
Morone saxatilisGeorgia1965
Morone saxatilisNetherlandsTo 1998
Morone saxatilisUkraine / Black SeaFrom 1965
Muceddina multispinosaIreland1982
Mugil soiuyBulgaria1970 - 1979
Mugil soiuyGeorgia1975
Mugil soiuyRomaniaFrom 1975
Mugil soiuyRussia / Black Sea1970 - 1979
Mugil soiuyTurkey / Black Sea1992
Mugil soiuyUkraine / Black Sea1968
Mulinia lateralisGermany / North Sea2017
Mulinia lateralisNetherlands2018
Murchisonella mediterraneaGreece / Eastern Mediterranean2008 - 2011
Murchisonella sp.Finland2013 - 2015
Murex brandardisSpain / Iberian Coastal2007
Mya arenariaBelgiumTo 1700
Mya arenariaBulgaria1973
Mya arenariaDenmark / Baltic Sea1245 - 1290
Mya arenariaDenmark / North Sea1245 - 1290
Mya arenariaEstonia1101 - 1200
Mya arenariaFinland1101 - 1200
Mya arenariaFrance / Biscay GulfTo 1700
Mya arenariaFrance / Celtic seas1700
Mya arenariaFrance / North SeaTo 1700
Mya arenariaFrance / Western Mediterranean1976
Mya arenariaGermany / Baltic Sea1101 - 1200
Mya arenariaGermany / North SeaTo 1350
Mya arenariaGreece / Eastern Mediterranean1984
Mya arenariaIceland1958
Mya arenariaIrelandTo 1844
Mya arenariaItaly / Adriatic Sea2008
Mya arenariaLatvia1101 - 1200
Mya arenariaLithuania1101 - 1200
Mya arenariaNetherlandsTo 1250
Mya arenariaNorway / Barents SeaTo 1000
Mya arenariaNorway / North SeaTo 1000
Mya arenariaNorway / Norwegian SeaTo 1000
Mya arenariaPoland1101 - 1200
Mya arenariaPortugal / Iberian CoastalTo 1250
Mya arenariaRomaniaFrom 1967
Mya arenariaRussia / Baltic Sea / Kaliningrad area1101 - 1200
Mya arenariaSpain / Iberian CoastalTo 1250
Mya arenariaSweden / Baltic Sea1200 - 1250
Mya arenariaSweden / North Sea1200 - 1250
Mya arenariaTurkey / Black SeaFrom 1993
Mya arenariaUkraine / Azov SeaFrom 1966
Mya arenariaUkraine / Black SeaFrom 1966
Mya arenariaUnited Kingdom (Britain) / Celtic seas1800 - 1899
Mya arenariaUnited Kingdom (Britain) / English Channel1800 - 1899
Mya arenariaUnited Kingdom (Britain) / North SeaTo 1880
Mya arenariaUnited Kingdom (Britain) / North Sea / Orkney IslandsTo 1938
Mycale (Carmia) micracanthoxeaBelgiumTo 2018
Mycale (Carmia) micracanthoxeaNetherlands1977
Mycale (Carmia) senegalensisPortugal / Madeira2010
Mycale macginiteiUSA / California Current2012
Myicola ostreaeFrance / Biscay Gulf1972
Myicola ostreaeFrance / Celtic seas1972
Myicola ostreaeFrance / Western Mediterranean1972
Myicola ostreaeIreland1993
Myicola ostreaeNetherlands1992
Myra subgranulataGreece / Eastern Mediterranean2004
Myriactula rivulariaeNetherlands1980
Myrionema strangulansAustralia / Bass strait1971
Mytilaster lineatusRussia / Caspian Sea1919
Mytilaster minimusSpain / Iberian CoastalTo 2015
Mytilicola intestinalisBelgium1950
Mytilicola intestinalisDenmark / Baltic Sea1964
Mytilicola intestinalisDenmark / North Sea1964
Mytilicola intestinalisFrance / Biscay Gulf1949
Mytilicola intestinalisFrance / Celtic seas1949
Mytilicola intestinalisFrance / English Channel1949
Mytilicola intestinalisFrance / North Sea1930
Mytilicola intestinalisGermany / North Sea1939
Mytilicola intestinalisIreland1947
Mytilicola intestinalisNetherlands1949
Mytilicola intestinalisUnited Kingdom (Britain) / Celtic seas1937
Mytilicola intestinalisUnited Kingdom (Britain) / English Channel1937
Mytilicola orientalisFrance / Biscay Gulf1977
Mytilicola orientalisFrance / Celtic seas1977
Mytilicola orientalisFrance / English Channel1977
Mytilicola orientalisFrance / North Sea1977
Mytilicola orientalisFrance / Western Mediterranean1977
Mytilicola orientalisGermany / Baltic Sea2018
Mytilicola orientalisGermany / North Sea1990 - 1999
Mytilicola orientalisIreland1993
Mytilicola orientalisNetherlands1949
Mytilopsis leucophaeataBelgium1835
Mytilopsis leucophaeataEstonia2019
Mytilopsis leucophaeataFinland2003
Mytilopsis leucophaeataFrance / Biscay Gulf1928
Mytilopsis leucophaeataFrance / English ChannelTo 1970
Mytilopsis leucophaeataFrance / North SeaTo 1931
Mytilopsis leucophaeataGermany / Baltic Sea1928
Mytilopsis leucophaeataGermany / North SeaTo 1994
Mytilopsis leucophaeataLatvia2015
Mytilopsis leucophaeataNetherlands1895
Mytilopsis leucophaeataPoland2010
Mytilopsis leucophaeataSweden / Baltic Sea2011
Mytilopsis leucophaeataUkraine / Black SeaFrom 2000
Mytilopsis leucophaeataUnited Kingdom (Britain) / Celtic seas1996
Mytilopsis leucophaeataUnited Kingdom (Britain) / North SeaTo 1999
Mytilopsis salleiTaiwan / South China SeaFrom 1977
Mytilus edulisPortugal / AzoresTo 1965
Mytilus edulisTurkey / Black Sea1990
Mytilus edulisUkraine / Black SeaFrom 2001
Mytilus galloprovincialisFrance / Biscay Gulf2015 - 2017
Mytilus galloprovincialisFrance / Celtic seas2015 - 2017
Mytilus galloprovincialisFrance / English Channel2003
Mytilus galloprovincialisJapan / East China SeaTo 2013
Mytilus galloprovincialisKorea, Republic of / Sea of JapanTo 2011
Mytilus galloprovincialisKorea, Republic of / Yellow SeaTo 2011
Mytilus galloprovincialisRussia / Sea of JapanTo 1999
Mytilus galloprovincialisUnited Kingdom (Britain) / Celtic seas1924
Mytilus galloprovincialisUnited Kingdom (Britain) / English Channel1998
Mytilus trossulusSpain / Iberian CoastalTo 2016
Mytilus trossulusUkraine / Black SeaFrom 2001
Mytilus trossulusUnited Kingdom (Britain) / Celtic seas2006
Myxicola infundibulumAustralia / Bass strait1975