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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F25%3A00604375" target="_blank" >RIV/68081766:_____/25:00604375 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/25:00143387

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S004484862401562X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S004484862401562X?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aquaculture.2024.742100" target="_blank" >10.1016/j.aquaculture.2024.742100</a>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

<a href="/en/project/GA20-29111S" target="_blank" >GA20-29111S: Parasite acquisition by non-native fish hosts: determinants and impacts on native fish fauna</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Aquaculture

ISSN

0044-8486

e-ISSN

1873-5622

Volume of the periodical

599

Issue of the periodical within the volume

April

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

15

Pages from-to

742100

UT code for WoS article

001397272800001

EID of the result in the Scopus database

2-s2.0-85214344911