Histopathological and ultrastructural studies of the tapeworm Monobothrium wageneri (Caryophyllidea) in the intestinal tract of tench Tinca tinca

0370142 - BC 2012 RIV DE eng J - Journal Article
Williams, C. F. - Poddubnaya, L. G. - Scholz, Tomáš - Turnbull, J. F. - Ferguson, H. W.
Histopathological and ultrastructural studies of the tapeworm Monobothrium wageneri (Caryophyllidea) in the intestinal tract of tench Tinca tinca.
Diseases of Aquatic Organisms. Roč. 97, č. 2 (2011), 143-154. ISSN 0177-5103. E-ISSN 1616-1580
R&D Projects: GA MŠMT LC522; GA ČR GA524/08/0885
Institutional research plan: CEZ:AV0Z60220518
Keywords : Monobothrium wageneri * Pathology * Tapeworm * Tench * Fisheries
Subject RIV: GJ - Animal Vermins ; Diseases, Veterinary Medicine
Impact factor: 2.201, year: 2011

Monobothrium wageneri is a monozoic caryophyllidean tapeworm of tench Tinca tinca. The ultrasctructural observations and pathological changes caused by this parasite within the intestinal tract of wild tench are described for the first time. Parasites were found attached to the anterior third of the intestine in tight clusters comprising up to 109 tapeworms. Infection was associated with the formation of raised inflammatory swellings surrounding the parasites. This host response, combined with the deep penetration of the scolex into the gut wall, formed a very firm seat of parasite attachment. Histopathological changes were characterised by a pronounced fibrogranulomatous lesion that extended through all layers of the intestine. This was accompanied by haemorrhage, oedema, necrosis and degeneration of the muscularis. The lesions associated with the attachment of M. wageneri are more severe than those recorded for any other tapeworm of British freshwater fish.
Permanent Link: http://hdl.handle.net/11104/0204027