Occurrences of Anguillicoloides crassus, an invasive parasitic nematode, infecting American eel (Anguilla rostrata) collected from New Brunswick and Nova Scotia Rivers: 2008-2009 December 1, 2013 Occurrences of Anguillicoloides crassus, an invasive parasitic nematode, infecting American eel (Anguilla rostrata) collected from New Brunswick and Nova Scotia Rivers: 2008-2009