Figure 2.

Encapsulated larvae of A. crassus in the intestinal and swimbladder-wall of Japanese eels. Encapsulated larvae of A. crassus from the swimbladder wall (a) and the intestinal wall (b and c). Pictures a and b are taken from unfixed tissue during dissection using transmitted light under a stereo microscope. Picture c is taken during preparation of intestinal capsules for PCR from fixed tissue using incident light. Scales indicate 1 mm.