Veterinary Archives, Vol. 92 No. 3, 2022.
Original scientific paper
https://doi.org/10.24099/vet. arhiv.1553
Pathogenicity of Clinostomum complanatum (Digenea: Clinostomidae) in naturally infected chub (Squalius cephalus) and common carp (Cyprinus carpio)
Emil Gjurčević
; Department for Biology and Pathology of Fish and Bees, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Snježana Kužir
; Department of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Damir Valić
; Division for Marine and Environmental Research, Ruđer Bošković Institute, Zagreb, Croatia
Fabio Marino
; Department of Chemistry, Biology, Pharmacology and Environmental Science, University of Messina, Messina, Italy
Valerija Benko
; Department for Biology and Pathology of Fish and Bees, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Krešimir Kuri
; Public Institution Aquatika-Freshwater Aquarium Karlovac, Karlovac, Croatia
Krešimir Matanović
; Department for Biology and Pathology of Fish and Bees, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
Abstract
Metacercariae of the digenetic trematode Clinostomum complanatum Rudolphi, 1814 were observed in chub (Squalius cephalus) and common carp (Cyprinus carpio) from the Orljava River (Croatia). Both the prevalence and infection intensity were higher in the chub (prevalence 23.4%, average intensity 70.5) than in the common carp (5.9%, 4.5). In general, the metacercariae were located in the wall of the anterior part of the digestive tract and branchial cavity, the supraocular region, and the hypaxial musculature near the paired fins. Histology revealed the obvious affinity of the parasite for striated muscles and connective tissue. In situ, the metacercariae were surrounded by wellvascularized connective tissue capsules composed primarily of collagen fibers, fibroblasts, and fibrocytes. This study provides some insight into the parasite’s pathogenicity and the relationship between host and parasite.
Keywords
Clinostomum complanatum; metacercariae; pathogenicity; chub; common carp; freshwater fish
Hrčak ID:
281016
URI
Publication date:
17.7.2022.
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