| distribution, prevalence, and intensity of the swim bladder parasite anguillicola crassus in new england and eastern canada. | in the summer of 2005, yellow phase american eels anguilla rostrata were examined for the swim bladder parasite anguillicola crassus from 26 locations in new england, usa, ranging from the pawcatuck river, rhode island, to the east machias river, maine. an additional 12 sites were sampled within canada during the summers of 2006 and 2007: 7 sites in southern nova scotia and 5 sites within the st. lawrence river system. in 2007, eels were also obtained from new brunswick, northern nova scotia, pr ... | 2009 | 19565700 |