J 2025

The role of North American bullhead catfish as parasite reservoirs in central European fishing grounds

ONDRACKOVA, Marketa; Yuriy KVACH; Maria Yu TKACHENKO; Marketa PRAVDOVA; Mária SEIFERTOVÁ et al.

Základní údaje

Originální název

The role of North American bullhead catfish as parasite reservoirs in central European fishing grounds

Autoři

ONDRACKOVA, Marketa; Yuriy KVACH; Maria Yu TKACHENKO; Marketa PRAVDOVA; Mária SEIFERTOVÁ; Veronika BARTAKOVA a Pavel JURAJDA

Vydání

AQUACULTURE, AMSTERDAM, ELSEVIER, 2025, 0044-8486

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10617 Marine biology, freshwater biology, limnology

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.900 v roce 2024

Označené pro přenos do RIV

Ano

Organizační jednotka

Přírodovědecká fakulta

EID Scopus

Klíčová slova anglicky

Fish parasites; Ictaluridae; Aquaculture; Parasite sharing; Non-native species

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 26. 1. 2026 08:15, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

Introduced into Europe in the 19th century for aquaculture and sport-fishing, the North American brown bullhead Ameiurus nebulosus and black bullhead A. melas are often deemed undesirable due to competition and predation on local fish species. These non-native species may have an advantage over natives due to loss of natural pathogens, but may also serve as hosts for local parasites. In this study, we evaluate bullhead catfish from intensive aquacultural ponds, sport-fishing grounds and unmanaged water bodies in the Czech Republic (Central Europe) to determine whether they host co-introduced parasites infectious to local fish species and whether they serve as reservoirs for veterinary-important parasites. One-third of all parasite numbers were of North American origin, including Ictaluridae-specific monogeneans and myxozoans with a low risk of switching to local fish. Bullheads were confirmed as hosts for 26 taxa acquired in their new range, exhibiting significant infection with local Diplostomum spp. and Argulus foliaceus at high prevalence and abundance, especially in aquacultural ponds. Bullheads also showed high susceptibility to non-native Asian parasites, including larvae of the eel nematode Anguillicola crassus and the recently expanding ergasilid copepod Neoergasilus japonicus, these two representing almost half of all parasites found. Parasite infection had no obvious impact on host condition indices, and type of locality had no effect on physiological parameters, though it significantly influenced parasite community composition. While co-introduced parasites pose low risk to local fish fauna, bullheads serve as reservoirs for a wide range of local parasites, including both invasive and native veterinary-important species.