Acta Ichthyologica et Piscatoria 49(2): 171-176, doi: 10.3750/AIEP/02504

Observation of parasitic behaviour of an invasive neozootic fish species, the topmouth gudgeon, Pseudorasbora parva (Actinopterygii: Cypriniformes: Cyprinidae), on other cyprinid fishes

M. Oberle, J. Másílko, H. Wedekind

Corresponding author: M. Oberle

This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Citation: Oberle M, Másílko J, Wedekind H (2019) Observation of parasitic behaviour of an invasive neozootic fish species, the topmouth gudgeon, Pseudorasbora parva (Actinopterygii: Cypriniformes: Cyprinidae), on other cyprinid fishes. Acta Ichthyologica et Piscatoria 49(2): 171-176. https://doi.org/10.3750/AIEP/02504

Abstract

The objective of this study was to observe and document behavioural factors of parasitism of an invasive neozootic fish species—the topmouth gudgeon, Pseudorasbora parva (Temminck et Schlegel, 1846)—on different cohorts of 1-year-old and 2-year-old common carp, Cyprinus carpio Linnaeus, 1758, as well as 3-year-old tench, Tinca tinca (Linnaeus, 1758), after the overwintering period in ponds and subsequently in aquaria. Fishes cohabited the ponds for seven months and the aquaria for one month. After this period carp and tench were examined for visible lesions on the body surface. During the cohabitation period cyprinids were actively nibbled by the neozootic fish species P. parva. Such attacking or nibbling caused injuries on the skin and deep lesions, which can be interpreted as predation or even parasitism.

Keywords

fish parasitism, fish as parasite, Cyprinus carpio, neozoa, Tinca tinca, Pseudorasbora parva