Experimentally induced infections of European eel Anguilla anguilla with Anguillicola crassus (Nematoda, Dracunculoidea) and subsequent migration of larvae
Haenen, O.L.M.; Grisez, L.; De Charleroy, D.; Belpaire, C.; Ollevier, F.P. (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. https://dx.doi.org/10.3354/dao007097 In: Diseases of Aquatic Organisms. Inter Research: Oldendorf/Luhe. ISSN 0177-5103; e-ISSN 1616-1580, more |   |
| Keywords | Cycles > Life cycle
Developmental stages > Larvae
Pathology
Anguilla anguilla (Linnaeus, 1758) [WoRMS]; Anguillicola crassus Kuwahara, Niimi & Itagaki, 1974 [WoRMS]
Marine/Coastal; Brackish water; Fresh water |
| Authors | | Top | - Haenen, O.L.M.
- Grisez, L.
- De Charleroy, D., more
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| Abstract | 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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