Public domain: Introduction events' accounts (50 / 5516)
| Species |
Recipient region |
Date of the first record |
|
| Syngnathus acus | Ukraine / Black Sea | 2006 |  |
| Synidotea laevidorsalis | France / Biscay Gulf | To 1975 | |
| Synidotea laevidorsalis | France / Celtic seas | 1975 | |
| Synidotea laticauda | Belgium | To 2005 | |
| Synidotea laticauda | France / Biscay Gulf | To 1975 | |
| Synidotea laticauda | France / English Channel | 2017 | |
| Synidotea laticauda | Germany / North Sea | 2011 | |
| Synidotea laticauda | Netherlands | 2009 | |
| Synidotea laticauda | Spain / Iberian Coastal | To 1996 | |
| Synurella ambulans | Belgium | To 2016 | |
| Syphonota geographica | Greece / Central Mediterranean | 2002 | |
| Syphonota geographica | Greece / Eastern Mediterranean | 2014 | |
| Syphonota geographica | Italy / Central Mediterranean | 1999 | |
| Syracolithus dalmaticus | Ukraine / Black Sea | 1990 - 1999 | |
| Syrnola fasciata | Greece / Eastern Mediterranean | 2012 | |
| Syrnola fasciata | Israel | 1949 | |
| Syrnola lendix | Israel | 1994 | |
| Tachidiella minuta | Turkey / Black Sea | 2009 | |
| Taeniastrotus sp. | Ireland | To 1993 | |
| Takayama tasmanica | France / Biscay Gulf | To 2008 | |
| Talochlamys multistriata | Spain / Iberian Coastal | To 2017 | |
| Tasserkidrilus americanus | Belgium | To 2006 | |
| Tasserkidrilus americanus | Netherlands | To 2016 | |
| Taurulus bubalis | Iceland | 2005 | |
| Tayuva lilacina | Greece / Eastern Mediterranean | 2012 | |
| Tedania anhelans | Australia / Bass strait | 1886 | |
| Tellina compressa | Spain / Iberian Coastal | To 2002 | |
| Telmatogeton japonicus | Belgium | To 2005 | |
| Telmatogeton japonicus | Finland | 2008 | |
| Telmatogeton japonicus | France / English Channel | 2005 | |
| Telmatogeton japonicus | France / North Sea | 2005 | |
| Telmatogeton japonicus | Germany / Baltic Sea | 1962 | |
| Telmatogeton japonicus | Germany / North Sea | 1979 | |
| Telmatogeton japonicus | Ireland | To 1999 | |
| Telmatogeton japonicus | Netherlands | To 1993 | |
| Telmatogeton japonicus | Poland | 1970 | |
| Telmatogeton japonicus | Sweden / Baltic Sea | 2007 | |
| Telmatogeton japonicus | Sweden / North Sea | 1983 | |
| Telmatogeton japonicus | United Kingdom (Britain) / North Sea / Orkney Islands | 2015 | |
| Tenellia adspersa | Portugal / Iberian Coastal | 2016 | |
| Tenellia adspersa | Russia / Caspian Sea | 1989 | |
| Terapon jarbua | Israel | 2009 | |
| Terapon puta | Israel | 1984 | |
| Terapon puta | Italy / Adriatic Sea | 2021 | |
| Terapon theraps | Greece / Eastern Mediterranean | 2008 | |
| Terebella ehrenbergi | Israel | 1976 | |
| Terebella lapidaria | Ireland | 1993 | |
| Teredo bartschi | Israel | 1961 - 1964 | |
| Teredo bartschi | Italy / Adriatic Sea | 2007 | |
| Teredo bartschi | Italy / Central Mediterranean | 2009 | |
