| crayfish plague aphanomyces astaci detected in redclaw crayfish, cherax quadricarinatus in taiwan. | between december 2013 and january 2014, five outbreaks of an unknown disease with moderate to high cumulative mortality were observed among the freshwater redclaw crayfish (cherax quadricarinatus) populations at four crayfish farms in miaoli and changhua counties (northern taiwan) and at one crayfish farm in pingtung county (southern taiwan). polymerase chain reaction (pcr) analysis allowed the detection of aphanomyces astaci dna in dead crayfish. histopathological examination revealed an infect ... | 2016 | 27039156 |