Počet záznamů: 1  

The role of the European bitterling (Rhodeus amarus, Cyprinidae) in parasite accumulation and transmission in riverine ecosystems

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    0363164 - ÚBO 2012 RIV GB eng J - Článek v odborném periodiku
    Dávidová, M. - Blažek, Radim - Trichkova, T. - Koutrakis, E. - Gaygusuz, Ö. - Ercan, E. - Ondračková, Markéta
    The role of the European bitterling (Rhodeus amarus, Cyprinidae) in parasite accumulation and transmission in riverine ecosystems.
    Aquatic Ecology. Roč. 45, č. 3 (2011), s. 377-387. ISSN 1386-2588. E-ISSN 1573-5125
    Grant CEP: GA AV ČR KJB600930802; GA MŠMT LC522
    Výzkumný záměr: CEZ:AV0Z60930519
    Klíčová slova: European bitterling * Freshwater habitat * Metazoan parasites * Parasite transmission * Intermediate host
    Kód oboru RIV: EH - Ekologie - společenstva
    Impakt faktor: 1.365, rok: 2011

    In aquatic ecosystems, fish play a key role in parasite accumulation and transmission to predacious animals. In the present study, realized on seven populations of a small cyprinid fish species, the European bitterling Rhodeus amarus, we investigated (1) the role of the European bitterling as a potential intermediate or paratenic host, (2) the ability of the fish to accumulate parasites with similar final host group, and (3) its significance as a potential source of parasite infection in the ecosystem in respect to habitat characteristics. A total of 36 parasite species were recorded; 31 species (90% of all parasite specimens) were classified as endoparasites. Most of the endoparasites were found in the larval life stage, using bitterling as an intermediate or paratenic host. In particular, parasite community structure showed significantly higher proportions of allogenic parasites in comparison with autogenic. The supposed co-occurrence of parasite species with identical final host groups showed only a weak association. The adjacent reservoir areas were a significant determinant of both the total and infracommunity parasite species richness and for the mean parasite abundance. No relationship between the distance of sampling site from the adjacent reservoir and parasite community characteristics was found. As a small-sized fish with a wide distribution range and high local abundances, the European bitterling can represent a natural prey for a wide range of piscivorous predators. Due to its susceptibility to the number of larval endoparasites, this fish species may therefore fulfill the role as important transmitter of parasites to their final hosts.
    Trvalý link: http://hdl.handle.net/11104/0006526

     
     
Počet záznamů: 1  

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