| validating the identity of paramoeba invadens, the causative agent of recurrent mass mortality of sea urchins in nova scotia, canada. | green sea urchins strongylocentrotus droebachiensis along the coast of nova scotia, canada, suffer mass mortalities from infection by the pathogenic amoeba paramoeba invadens jones, 1985. it has been speculated that p. invadens could be a form of neoparamoeba pemaquidensis, a species associated with disease in s. droebachiensis and lobsters in the northeast usa. during a disease outbreak in fall 2011, we isolated amoebae from moribund urchins collected from 4 locations along ~200 km of coastline ... | 2013 | 23574707 |