| Species | Recipient region | Date of the first record | |
|---|
| Oncorhynchus mykiss | Ireland | 1895 |  |
| Oncorhynchus mykiss | United Kingdom (Britain) / Celtic seas | 1884 | |
| Oncorhynchus mykiss | Estonia | 1896 | |
| Oncorhynchus mykiss | Finland | 1898 | |
| Oncorhynchus mykiss | Latvia | 1899 | |
| Oncorhynchus mykiss | Lithuania | 1890 | |
| Oncorhynchus mykiss | Poland | 1881 - 1889 | |
| Oncorhynchus mykiss | Russia / Baltic Sea / Kaliningrad area | 1882 | |
| Oncorhynchus mykiss | Sweden / North Sea | 1894 - 1900 | |
| Oncorhynchus mykiss | Sweden / Baltic Sea | 1892 | |
| Oncorhynchus mykiss | Denmark / Baltic Sea | 1899 | |
| Oncorhynchus mykiss | Netherlands | 1898 | |
| Oncorhynchus mykiss | Belgium | 1884 | |
| Oncorhynchus mykiss | Ukraine / Black Sea | 1938 - 1965 | |
| Oncorhynchus mykiss | Norway / Norwegian Sea | 1902 | |
| Oncorhynchus mykiss | Russia / Baltic Sea / St. Petersburg area | 1881 - 1896 | |
| Oncorhynchus mykiss | Iceland | 1951 | |
| Oncorhynchus mykiss | Faroe Islands | To 1990 | |
| Oncorhynchus mykiss | Portugal / Madeira | To 2002 | |
| Oncorhynchus mykiss | Portugal / Azores | To 1990 | |
| Oncorhynchus mykiss | Germany / Baltic Sea | 1882 | |
| Oncorhynchus mykiss | France / English Channel | To 1984 | |
| Oncorhynchus mykiss | France / Biscay Gulf | 1984 | |
| Oncorhynchus mykiss | Norway / Barents Sea | To 2012 | |
| Oncorhynchus mykiss | Norway / North Sea | To 2012 | |
| Oncorhynchus mykiss | Denmark / North Sea | 1899 | |
