| Species | Recipient region | Date of the first record | |
|---|
| Dasysiphonia japonica | France / North Sea | 1984 |  |
| Dasysiphonia japonica | Ireland | 2002 | |
| Dasysiphonia japonica | United Kingdom (Britain) / Celtic seas | 2004 | |
| Dasysiphonia japonica | France / Celtic seas | 1994 | |
| Dasysiphonia japonica | United Kingdom (Britain) / English Channel | 2004 | |
| Dasysiphonia japonica | Sweden / North Sea | 2002 | |
| Dasysiphonia japonica | Denmark / North Sea | 2005 | |
| Dasysiphonia japonica | Netherlands | 1994 | |
| Dasysiphonia japonica | Italy / Adriatic Sea | 1999 | |
| Dasysiphonia japonica | Norway / Norwegian Sea | 1996 | |
| Dasysiphonia japonica | Norway / North Sea | 1996 | |
| Dasysiphonia japonica | United Kingdom (Britain) / North Sea | 2004 | |
| Dasysiphonia japonica | France / English Channel | 1984 | |
| Dasysiphonia japonica | Spain / Iberian Coastal | 1990 - 1999 | |
| Dasysiphonia japonica | Germany / North Sea | 2015 | |
| Dasysiphonia japonica | Belgium | 2015 | |
| Dasysiphonia japonica | France / Western Mediterranean | 1994 | |
| Dasysiphonia japonica | United Kingdom (Britain) / North Sea / Orkney Islands | To 2011 | |
| Dasysiphonia japonica | Denmark / Baltic Sea | 2005 | |
| Dasysiphonia japonica | Italy / Central Mediterranean | 2014 | |
