Collected reprints: Abstract 3029

Collected reprints

Abstract

Haenen, O.L.M.; Grisez, L.; De Charleroy, D.; Belpaire, C.; Ollevier, F. (1989). Experimentally induced infections of European eel Anguilla anguilla with Anguillicola crassus (Nematoda, Dracunculoidea) and subsequent migration of larvae. Dis. Aquat. Org. 7: 97-101

Migration patterns of third-stage Anguillicola crassus larvae, and pathogenesis of the lesions induced by third-stage larvae, was investigated in European eel Anguilla anguilla L. Young elvers (1g) were fed infected Paracyclops fimbriatus (Copepoda). Eel samples were collected and examined histologically at varying intervals during 6 mo post-infection period. Third-stage larvae (L-III) migrated directly through the intestinal wall and body cavity to the swimbladder within 17h post-infection. L-IV larvae were detected 3 mo post-infection, and immature adults were detected within 4 mo post-infection. The parasites occasionally showed aberrant migration paths. Pathological effects caused by the parasite were less severe after experimentally induced infections than those detected in some natural infections.

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