Invasion

Invasion Description

1st Record: Zeeland/Netherlands/Lake Grevelingen and the Oosterschelde (1991, Gittenberger 2007)

Geographic Extent

Zeeland/Netherlands/Lake Grevelingen and the Oosterschelde (1991, Gittenberger 2007); Coljinsplaat to Bonnemede/Netherlands/North Sea (2009-2010, Lindeyer and Gittenberger 2011); Terschelling/Netherlands/Wadden Sea (2008, Gittenberger et al. 2010); Le Havre/France/English Channel (2002, USGS Woods Hole Science Center 2007); Dublin County/Ireland/Malahide Estuary, 53º26'N, 06º09'W (2005, Minchin and Sides 2006); Louth County/Ireland/Carlingford Lough, 54º02'N, 06º11'W (2006, Minchin and Sides 2006); Holyhead Marina/Wales/Irish Sea (10/12/08, Griffith et al. 2009, Holt 2011 (eradication attempted); Graham etal. 2015, 53°19.173' 04°38.488'); Anglesey/Wales/Irish Sea (Lenz et al. 2011); Darthaven Marina, Dartmouth/England/Dart estuary, English Channel (6/29/2005, Griffith et al. 2009, died off with heavy rains, but colonies seen again on 7/27/2009; Graham et al. 2015);1 marina, Essex/ England/English Channel (Wood et al. 2016); Carlingford Marina, County Down/Northern Ireland/Carlingford Lough, Irish Sea (2012, Nunn and Minchin 2013); Cork/Ireland/Iresih Sea (2021, O'Shaughnessy et al. 2023); Cowes, Lymington and Gosport/England/the Solent (3/2010, USGS Woods Hole Science Center 2010; Bishop et al. 2015; Graham et al. 2015); North Kent Coast/England/English Channel (2011, Laing in ICES Advisory Committee on the Marine Environment 2012; Bishop et al. 2015); Largs/Scotland/Firth of Clydes (1/25/2010, USGS Woods Hole Science Center 2010; Grham et al. 2015); Isle of Sylt/Germany/Wadden Sea (2017, Lackschewitz et al. 2017, ctied by ICES WGITMO 2017)