Invasion

Invasion Description

1st Record: Sagres/Portugal/Atlantic Ocean (1/18/1999, Afonso 2011, 1 specimen, over 100 specimens collected in 2005 and 2008 samplings in Pacific Oyster Crassostrea gigas cultures)

Geographic Extent

Arcachon/France/Bay of Biscay (Houart and Sirenko 2003); Sagres/Portugal/Atlantic Ocean (1999, Afonso 2011; Chainho et al. 2015, over 100 specimens collected in 2005 and 2008 samplings in Pacific Oyster Crassostrea gigas cultures); Portugal/Tagus estuary (2018, Cabral 2020); Xastelas beach, Galicia/Spain/Ria de Arousa. Atlantic Ocean (2023, Banon et al. 2023, 42.531 N, -8.867 W);  Galicia/Spain/Ria de Ferrol, Atlantic Ocean (1 specimen, 43.465 N, -8.241 W)