Metagonimus yokogawai: A new parasitic trematoda species in ichtyoparasitofauna of the Serbia

Abstract

During the study of fish parasites in the Serbian section of the Danube River in 2003, a new Trematoda species for ichthyofauna of Serbia has been detected. It is, at the same time, the first finding of larvae of Metagonimus yokogawai in Serbia, as adult forms have been observed from mallard Anas platyrhynchus (L.), previously. Metacercariae of M. yokogawai have been identified on the scales of chub Leuciscus cephalus (L.), barbel Barbus barbus (L.), bleak Alburnus alburnus (L.), pikeperch Sander lucioperca (L.) and rudd Scardinius erythrophthalmus (L.) in the Serbian part of Danube River. The particular risk, beside the possible negative influence of spreading on fish and other host populations (some aquatic snails, fish-eating birds and some mammals), is the potential spreading of the parasitic disease in humans - Metagonimosis.

Tokom istraživanja parazita riba srpskog dela Dunava (2003) nađena je nova vrsta Trematoda za ihtioparazitofaunu Srbije. Ovaj nalaz je istovremeno i prvi nalaz larvi (metacerkarija) metilja Metagonimus yokogawai (Katsurada, 1912) s obzirom da su odrasle jedinke ovog parazita nađene prethodno kod divljih pataka Anas platyrhynchus (L). Metacerkarije M. yokogawai pronađene su na krljuštima klena Leuciscus cephalus (L.), mrene Barbus barbus (L.) uklije Alburnus alburnus (L.), smuđa Sander lucioperca (L.) i crvenoperke Scardinius erythrophthalmus (L). Posebna opasnost, pored širenja infekcije metiljem M. yokogawai i negativnog uticaja na populaciju riba i ostalih prelaznih domaćina (neki vodeni puževi, ribojedne vrste ptica i neki sisari), jeste i pojava metagonimioze kod ribojednih sisara, među kojima je i čovek.