| Species |
Recipient region |
Date of the first record |
|
| Prorocentrum dentatum | Georgia | 2001 |  |
| Prorocentrum dentatum | Ukraine / Black Sea | 1998 | |
| Prorocentrum emarginatum | Greece / Eastern Mediterranean | 2003 | |
| Prorocentrum gracile | Denmark / Baltic Sea | 1989 | |
| Prorocentrum gracile | Denmark / North Sea | 1989 | |
| Prorocentrum levis | Greece / Eastern Mediterranean | 2004 | |
| Prorocentrum lima | Denmark / Baltic Sea | 1989 | |
| Prorocentrum lima | Denmark / North Sea | 1989 | |
| Prorocentrum lima | France / Biscay Gulf | To 1987 | |
| Prorocentrum lima | France / English Channel | To 1987 | |
| Prorocentrum mexicanum | France / English Channel | 1995 | |
| Prorocentrum triestinum | Denmark / Baltic Sea | 1983 | |
| Prorocentrum triestinum | Denmark / North Sea | 1899 | |
| Prorocentrum triestinum | Germany / North Sea | 1992 | |
| Prorocentrum triestinum | Netherlands | 1961 | |
| Proterorhinus marmoratus | Russia / Baltic Sea / St. Petersburg area | 2006 | |
| Proterorhinus nasalis | Estonia | 2020 | |
| Proterorhinus nasalis | Finland | 2022 | |
| Protoceratium reticulatum | Netherlands | To 2014 | |
| Protocystis swerei | Ukraine / Black Sea | 1950 - 1959 | |
| Protodorvillea biarticulata | Greece / Central Mediterranean | 1983 | |
| Protodorvillea biarticulata | Greece / Eastern Mediterranean | 1975 | |
| Protodorvillea egena | Italy / Central Mediterranean | 2001 | |
| Protomonostroma undulatum | Denmark / Baltic Sea | 1973 | |
| Protomonostroma undulatum | Denmark / North Sea | 1973 | |
| Protomonostroma undulatum | Germany / North Sea | To 1954 | |
| Protoperidinium minutum | Georgia | 1999 | |
| Protoperidinium minutum | Russia / Black Sea | 2001 | |
| Protoperidinium parthenopes | Russia / Black Sea | 2001 | |
| Psammacoma gubernaculum | Israel | 2008 | |
| Psammoryctides moravicus | Belgium | To 2008 | |
| Pseudechidna brummeri | Portugal / Iberian Coastal | To 2023 | |
| Pseudo-nitzschia australis | France / Biscay Gulf | To 2013 | |
| Pseudo-nitzschia australis | France / English Channel | 2004 | |
| Pseudo-nitzschia calliantha | Turkey / Black Sea | 2007 - 2008 | |
| Pseudo-nitzschia calliantha | Ukraine / Black Sea | 2006 | |
| Pseudo-nitzschia inflatula | Ukraine / Black Sea | 1990 - 1999 | |
| Pseudo-nitzschia multistriata | France / Biscay Gulf | 2002 | |
| Pseudo-nitzschia multistriata | Portugal / Iberian Coastal | To 2003 | |
| Pseudo-nitzschia obtusa | Russia / Caspian Sea | 1990 | |
| Pseudo-nitzschia pungens | Russia / Black Sea | 2000 | |
| Pseudobacciger harengulae | Sweden / North Sea | 1994 | |
| Pseudobiceros stellae | Israel | 2016 | |
| Pseudoceros duplicinctus | Israel | 2015 | |
| Pseudochattonella farcimen | France / Biscay Gulf | 2012 | |
| Pseudochattonella farcimen | France / English Channel | 1994 | |
| Pseudochattonella farcimen | Germany / North Sea | To 1998 | |
| Pseudochattonella farcimen | Norway / North Sea | To 2010 | |
| Pseudochattonella farcimen | Poland | To 2001 | |
| Pseudochattonella verruculosa | Denmark / Baltic Sea | To 2015 | |
