Public domain: Introduction events' accounts (50 / 5527)
| Species |
Recipient region |
Date of the first record |
|
| Arachnidium lacourti | Netherlands | To 2005 |  |
| Arachnoidea protecta | Italy / Western Mediterranean | 1992 | |
| Arbopercula tenella | Israel | 2012 | |
| Arbopercula tenella | Italy / Central Mediterranean | 1990 | |
| Arbopercula tenella | Italy / Western Mediterranean | To 2011 | |
| Arcania brevifrons | Israel | 2016 | |
| Archesola typhlops | Ukraine / Black Sea | 2007 | |
| Arcuatula perfragilis | Israel | 1960 | |
| Arcuatula senhousia | Australia / Bass strait | 1980 - 1989 | |
| Arcuatula senhousia | France / Biscay Gulf | 1971 | |
| Arcuatula senhousia | France / Celtic seas | To 2008 | |
| Arcuatula senhousia | France / North Sea | 2018 | |
| Arcuatula senhousia | France / Western Mediterranean | 1982 | |
| Arcuatula senhousia | Israel | 1960 | |
| Arcuatula senhousia | Italy / Adriatic Sea | 1994 | |
| Arcuatula senhousia | Italy / Central Mediterranean | 2001 | |
| Arcuatula senhousia | Italy / Western Mediterranean | 1999 | |
| Arcuatula senhousia | Romania | 2002 | |
| Arcuatula senhousia | Spain / Iberian Coastal | To 2012 | |
| Argopecten irradians | China / Yellow Sea | 1982 | |
| Argopecten irradians | Korea, Democratic Peoples Republic of / Sea of Japan | To 2013 | |
| Argopecten irradians | Korea, Republic of / Sea of Japan | To 2013 | |
| Aricidea hartmani | Canada / Hudson Bay Complex | To 2010 | |
| Arietellus pavoninus | Greece / Eastern Mediterranean | 1967 | |
| Arnoglossus nigrofilamentosus | Israel | 2017 | |
| Artemia franciscana | France / Biscay Gulf | 1800 - 1899 | |
| Artemia franciscana | Italy / Adriatic Sea | 2004 | |
| Artemia franciscana | Portugal / Iberian Coastal | To 1980 | |
| Artemia franciscana | Portugal / Madeira | 1997 | |
| Artemia franciscana | Spain / Iberian Coastal | To 2002 | |
| Ascidia cannelata | Israel | 1955 | |
| Ascidia interrupta | Portugal / Azores | To 1992 | |
| Ascidiella aspersa | Australia / Bass strait | To 1985 | |
| Ascidiella aspersa | Canada / South-eastern Scotian Shelf | 2012 | |
| Ascidiella aspersa | Greece / Eastern Mediterranean | 1901 | |
| Ascidiella aspersa | Iceland | 2018 | |
| Ascidiella aspersa | Portugal / Madeira | 2015 | |
| Ascidiella aspersa | United Kingdom (Britain) / North Sea / Orkney Islands | 1994 | |
| Ascidiella scabra | Iceland | 2020 | |
| Ascidiella scabra | United Kingdom (Britain) / North Sea / Orkney Islands | 1994 | |
| Ascophyllum nodosum | Italy / Central Mediterranean | 2009 | |
| Ashtoret lunaris | Israel | 1987 | |
| Asparagopsis armata | France / Biscay Gulf | 1925 | |
| Asparagopsis armata | France / Celtic seas | 1922 | |
| Asparagopsis armata | France / English Channel | 1999 | |
| Asparagopsis armata | France / Western Mediterranean | 1926 | |
| Asparagopsis armata | Greece / Central Mediterranean | 2010 | |
| Asparagopsis armata | Greece / Eastern Mediterranean | 2010 | |
| Asparagopsis armata | Ireland | 1939 | |
| Asparagopsis armata | Italy / Adriatic Sea | To 1978 | |
