Publication details
Parasitic infection in common carp wounded by cormorant (Phalacrocorax carbo sinensis) attacks
| Authors | |
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| Year of publication | 2009 |
| Type | Conference abstract |
| MU Faculty or unit | |
| Citation | |
| Description | Fish affected by wounding caused by cormorants may suffer with increased susceptibility to the infections and consequently decreased body condition. In this study, common carp Cyprinus carpio originating from Týnecký pond, CR, were sampled in late March. Fish were examined for parasites, the extent of injuries caused by cormorant attacks, lysozyme concentration in skin mucus and body condition. Only Gyrodactylus spp. and Dactylogyrus spp. showed significantly increased abundances in wounded fish. The extent of damaged epithelium in wounded fish was positively associated with lysozyme concentrations in fish mucus. There was no difference in Fultons condition coefficient, hepatosomatic index and lipid content in muscle and liver tissue between wounded and non-wounded fish. Although our results did not show direct effect of cormorant attacks on fish condition, the wounded fish suffered higher intensities of ectoparasite infection what may have additional consequences in the subsequent year. |